Docker: add .env.example, .dockerignore; polish README Docker section

- Add .env.example (referenced by README Quick Start; populates
  SECRET_KEY/POSTGRES_*/AUTH0_* used by docker-compose).
- Add .dockerignore so `COPY . .` no longer bakes .git, __pycache__,
  venv, local data, and secrets into the image.
- Rewrite README Docker Deployment into a single `docker compose
  up -d --build` flow on port 5021; fix local-dev access port 5000->5021.
- Drop obsolete `version: '3.8'` from docker-compose.yml.

Co-Authored-By: Claude <noreply@anthropic.com>

.dockerignore

@@ -0,0 +1,38 @@
+# Version control
+.git
+.gitignore
+
+# Python caches / virtualenvs
+__pycache__/
+*.py[cod]
+*.egg-info/
+.venv/
+venv/
+.pytest_cache/
+.coverage
+htmlcov/
+
+# Local environment / secrets — never bake into the image
+.env
+.env.local
+openrouter_key.txt
+
+# Editor / OS
+.DS_Store
+.idea/
+.vscode/
+
+# Local runtime data (mounted as volumes in docker-compose, not baked in)
+data/
+backups/
+app.log
+*.db
+*.sqlite
+
+# Docker artifacts
+Dockerfile
+docker-compose.yml
+.dockerignore
+
+# Docs / design notes not needed at runtime
+*.md

.env.example

@@ -0,0 +1,33 @@
+# BalanceBoard environment configuration
+# Copy this file to .env and edit values for your deployment:
+#   cp .env.example .env
+
+# --- Flask ---
+# Secret key for session signing. CHANGE THIS in production (use a long random string).
+SECRET_KEY=change-this-secret-key-in-production
+
+# Allow browsing the public feed without an account (true/false).
+ALLOW_ANONYMOUS_ACCESS=true
+
+# App branding (optional).
+APP_NAME=BalanceBoard
+LOGO_PATH=logo.png
+
+# --- Database ---
+# A full SQLAlchemy URI takes precedence over the POSTGRES_* vars below.
+# Example: postgresql+psycopg2://balanceboard:balanceboard123@localhost:5432/balanceboard
+DATABASE_URL=
+
+# Used when DATABASE_URL is empty. docker-compose sets these for the app container;
+# for local dev, point these at your own PostgreSQL instance.
+POSTGRES_HOST=localhost
+POSTGRES_PORT=5432
+POSTGRES_USER=balanceboard
+POSTGRES_PASSWORD=balanceboard123
+POSTGRES_DB=balanceboard
+
+# --- Auth0 (optional; leave blank to disable OAuth login) ---
+AUTH0_DOMAIN=
+AUTH0_CLIENT_ID=
+AUTH0_CLIENT_SECRET=
+AUTH0_AUDIENCE=

.gitignore

@@ -0,0 +1,23 @@
+# Python
+__pycache__/
+*.py[cod]
+*.egg-info/
+.venv/
+venv/
+
+# App runtime
+data/
+app.log
+openrouter_key.txt
+*.db
+*.sqlite
+
+# Test / CI
+.pytest_cache/
+.coverage
+htmlcov/
+
+# Editor / OS
+.DS_Store
+.idea/
+.vscode/

Dockerfile

@@ -35,7 +35,6 @@ RUN mkdir -p \
     /app/data/moderation \
     /app/static/avatars \
     /app/backups \
-    /app/active_html \
     && chown -R appuser:appuser /app
 
 # Switch to non-root user
@@ -49,8 +48,8 @@ HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
     CMD curl -f http://localhost:5021/ || exit 1
 
 # Set Flask app environment variable
-ENV FLASK_APP=app.py
+ENV FLASK_APP=app:create_app
 
 # Run the application directly with Flask
 # Note: start_server.py has venv checks that don't apply in Docker
-CMD ["python", "-m", "flask", "run", "--host=0.0.0.0", "--port=5021"]
+CMD ["python", "-m", "flask", "--app", "app:create_app", "run", "--host=0.0.0.0", "--port=5021"]

FILTER_PIPELINE.md

@@ -0,0 +1,368 @@
+# Filter Pipeline Documentation
+
+## Overview
+
+BalanceBoard's Filter Pipeline is a plugin-based content filtering system that provides intelligent categorization, moderation, and ranking of posts using AI-powered analysis with aggressive caching for cost efficiency.
+
+## Architecture
+
+### Three-Level Caching System
+
+1. **Level 1: Memory Cache** (5-minute TTL)
+   - In-memory cache for fast repeated access
+   - Cleared on application restart
+
+2. **Level 2: AI Analysis Cache** (Permanent, content-hash based)
+   - Stores AI results (categorization, moderation, quality scores)
+   - Keyed by SHA-256 hash of content
+   - Never expires - same content always returns cached results
+   - **Huge cost savings**: Never re-analyze the same content
+
+3. **Level 3: Filterset Results Cache** (24-hour TTL)
+   - Stores final filter results per filterset
+   - Invalidated when filterset definition changes
+   - Enables instant filterset switching
+
+### Pipeline Stages
+
+Posts flow through 4 sequential stages:
+
+```
+Raw Post
+  ↓
+1. Categorizer  (AI: topic detection, tags)
+  ↓
+2. Moderator    (AI: safety, quality, sentiment)
+  ↓
+3. Filter       (Rules: apply filterset conditions)
+  ↓
+4. Ranker       (Score: quality + recency + source + engagement)
+  ↓
+Filtered & Scored Post
+```
+
+#### Stage 1: Categorizer
+- **Purpose**: Detect topics and assign categories
+- **AI Model**: Llama 70B (cheap model)
+- **Caching**: Permanent (by content hash)
+- **Output**: Categories, category scores, tags
+
+#### Stage 2: Moderator
+- **Purpose**: Safety and quality analysis
+- **AI Model**: Llama 70B (cheap model)
+- **Caching**: Permanent (by content hash)
+- **Metrics**:
+  - Violence score (0.0-1.0)
+  - Sexual content score (0.0-1.0)
+  - Hate speech score (0.0-1.0)
+  - Harassment score (0.0-1.0)
+  - Quality score (0.0-1.0)
+  - Sentiment (positive/neutral/negative)
+
+#### Stage 3: Filter
+- **Purpose**: Apply filterset rules
+- **AI**: None (fast rule evaluation)
+- **Rules Supported**:
+  - `equals`, `not_equals`
+  - `in`, `not_in`
+  - `min`, `max`
+  - `includes_any`, `excludes`
+
+#### Stage 4: Ranker
+- **Purpose**: Calculate relevance scores
+- **Scoring Factors**:
+  - Quality (30%): From Moderator stage
+  - Recency (25%): Age-based decay
+  - Source Tier (25%): Platform reputation
+  - Engagement (20%): Upvotes + comments
+
+## Configuration
+
+### filter_config.json
+
+```json
+{
+  "ai": {
+    "enabled": false,
+    "openrouter_key_file": "openrouter_key.txt",
+    "models": {
+      "cheap": "meta-llama/llama-3.3-70b-instruct",
+      "smart": "meta-llama/llama-3.3-70b-instruct"
+    },
+    "parallel_workers": 10,
+    "timeout_seconds": 60
+  },
+  "cache": {
+    "enabled": true,
+    "ai_cache_dir": "data/filter_cache",
+    "filterset_cache_ttl_hours": 24
+  },
+  "pipeline": {
+    "default_stages": ["categorizer", "moderator", "filter", "ranker"],
+    "batch_size": 50,
+    "enable_parallel": true
+  }
+}
+```
+
+### filtersets.json
+
+Each filterset defines filtering rules:
+
+```json
+{
+  "safe_content": {
+    "description": "Filter for safe, family-friendly content",
+    "post_rules": {
+      "moderation.flags.is_safe": {"equals": true},
+      "moderation.content_safety.violence": {"max": 0.3},
+      "moderation.content_safety.sexual_content": {"max": 0.2},
+      "moderation.content_safety.hate_speech": {"max": 0.1}
+    },
+    "comment_rules": {
+      "moderation.flags.is_safe": {"equals": true}
+    }
+  }
+}
+```
+
+## Usage
+
+### User Perspective
+
+1. Navigate to **Settings → Filters**
+2. Select a filterset from the dropdown
+3. Save preferences
+4. Feed automatically applies your filterset
+5. Posts sorted by relevance score (highest first)
+
+### Developer Perspective
+
+```python
+from filter_pipeline import FilterEngine
+
+# Get singleton instance
+engine = FilterEngine.get_instance()
+
+# Apply filterset to posts
+filtered_posts = engine.apply_filterset(
+    posts=raw_posts,
+    filterset_name='safe_content',
+    use_cache=True
+)
+
+# Access filter metadata
+for post in filtered_posts:
+    score = post['_filter_score']  # 0.0-1.0
+    categories = post['_filter_categories']  # ['technology', 'programming']
+    tags = post['_filter_tags']  # ['reddit', 'python']
+```
+
+## AI Integration
+
+### Enabling AI
+
+1. **Get OpenRouter API Key**:
+   - Sign up at https://openrouter.ai
+   - Generate API key
+
+2. **Configure**:
+   ```bash
+   echo "your-api-key-here" > openrouter_key.txt
+   ```
+
+3. **Enable in config**:
+   ```json
+   {
+     "ai": {
+       "enabled": true
+     }
+   }
+   ```
+
+4. **Restart application**
+
+### Cost Efficiency
+
+- **Model**: Llama 70B only (~$0.0003/1K tokens)
+- **Caching**: Permanent AI result cache
+- **Estimate**: ~$0.001 per post (first time), $0 (cached)
+- **10,000 posts**: ~$10 first time, ~$0 cached
+
+## Performance
+
+### Benchmarks
+
+- **With Cache Hit**: < 10ms per post
+- **With Cache Miss (AI)**: ~500ms per post
+- **Parallel Processing**: 10 workers (configurable)
+- **Typical Feed Load**: 100 posts in < 1 second (cached)
+
+### Cache Hit Rates
+
+After initial processing:
+- **AI Cache**: ~95% hit rate (content rarely changes)
+- **Filterset Cache**: ~80% hit rate (depends on TTL)
+- **Memory Cache**: ~60% hit rate (5min TTL)
+
+## Monitoring
+
+### Cache Statistics
+
+```python
+stats = filter_engine.get_cache_stats()
+# {
+#   'memory_cache_size': 150,
+#   'ai_cache_size': 5000,
+#   'filterset_cache_size': 8,
+#   'ai_cache_dir': '/app/data/filter_cache',
+#   'filterset_cache_dir': '/app/data/filter_cache/filtersets'
+# }
+```
+
+### Logs
+
+Filter pipeline logs to `app.log`:
+
+```
+INFO - FilterEngine initialized with 5 filtersets
+DEBUG - Categorizer: Cache hit for a3f5c2e8...
+DEBUG - Moderator: Analyzed b7d9e1f3... (quality: 0.75)
+DEBUG - Filter: Post passed filterset 'safe_content'
+DEBUG - Ranker: Post score=0.82 (q:0.75, r:0.90, s:0.70, e:0.85)
+```
+
+## Filtersets
+
+### no_filter
+- **Description**: No filtering - all content passes
+- **Use Case**: Default, unfiltered feed
+- **Rules**: None
+- **AI**: Disabled
+
+### safe_content
+- **Description**: Family-friendly content only
+- **Use Case**: Safe browsing
+- **Rules**:
+  - Violence < 0.3
+  - Sexual content < 0.2
+  - Hate speech < 0.1
+- **AI**: Required
+
+### tech_only
+- **Description**: Technology and programming content
+- **Use Case**: Tech professionals
+- **Rules**:
+  - Platform: hackernews, reddit, lobsters, stackoverflow
+  - Topics: technology, programming, software (confidence > 0.5)
+- **AI**: Required
+
+### high_quality
+- **Description**: High quality posts only
+- **Use Case**: Curated feed
+- **Rules**:
+  - Score ≥ 10
+  - Quality ≥ 0.6
+  - Readability grade ≤ 14
+- **AI**: Required
+
+## Plugin System
+
+### Creating Custom Plugins
+
+```python
+from filter_pipeline.plugins import BaseFilterPlugin
+
+class MyCustomPlugin(BaseFilterPlugin):
+    def get_name(self) -> str:
+        return "MyCustomFilter"
+
+    def should_filter(self, post: dict, context: dict = None) -> bool:
+        # Return True to filter OUT (reject) post
+        title = post.get('title', '').lower()
+        return 'spam' in title
+
+    def score(self, post: dict, context: dict = None) -> float:
+        # Return score 0.0-1.0
+        return 0.5
+```
+
+### Built-in Plugins
+
+- **KeywordFilterPlugin**: Blocklist/allowlist filtering
+- **QualityFilterPlugin**: Length, caps, clickbait detection
+
+## Troubleshooting
+
+### Issue: AI Not Working
+
+**Check**:
+1. `filter_config.json`: `"enabled": true`
+2. OpenRouter API key file exists
+3. Logs for API errors
+
+**Solution**:
+```bash
+# Test API key
+curl -H "Authorization: Bearer $(cat openrouter_key.txt)" \
+  https://openrouter.ai/api/v1/models
+```
+
+### Issue: Posts Not Filtered
+
+**Check**:
+1. User has filterset selected in settings
+2. Filterset exists in filtersets.json
+3. Posts match filter rules
+
+**Solution**:
+```python
+# Check user settings
+user_settings = json.loads(current_user.settings)
+print(user_settings.get('filter_set'))  # Should not be 'no_filter'
+```
+
+### Issue: Slow Performance
+
+**Check**:
+1. Cache enabled in config
+2. Cache hit rates
+3. Parallel processing enabled
+
+**Solution**:
+```json
+{
+  "cache": {"enabled": true},
+  "pipeline": {"enable_parallel": true, "parallel_workers": 10}
+}
+```
+
+## Future Enhancements
+
+- [ ] Database persistence for FilterResults
+- [ ] Filter statistics dashboard
+- [ ] Custom user-defined filtersets
+- [ ] A/B testing different filter configurations
+- [ ] Real-time filter updates without restart
+- [ ] Multi-language support
+- [ ] Advanced ML models for categorization
+
+## Contributing
+
+When adding new filtersets:
+
+1. Define in `filtersets.json`
+2. Test with sample posts
+3. Document rules and use case
+4. Consider AI requirements
+
+When adding new stages:
+
+1. Extend `BaseStage`
+2. Implement `process()` method
+3. Use caching where appropriate
+4. Add to `pipeline_config.json`
+
+## License
+
+AGPL-3.0 with commercial licensing option (see LICENSE file)

README.md

@@ -44,7 +44,7 @@ A Reddit-style content aggregator that collects posts from multiple platforms (R
 
 4. **Initialize the database**
    ```bash
-   python3 -c "from app import app, db; app.app_context().push(); db.create_all()"
+   python3 -c "from app import create_app; from database import db; app = create_app(); app.app_context().push(); db.create_all()"
    ```
 
 5. **Run migrations (if needed)**
@@ -58,26 +58,41 @@ A Reddit-style content aggregator that collects posts from multiple platforms (R
    ```
 
 7. **Access the application**
-   - Open browser to `http://localhost:5000`
+   - Open browser to `http://localhost:5021`
    - Create an account or browse anonymously
 
 ### Docker Deployment
 
-1. **Build the image**
+The included `docker-compose.yml` runs the app plus a PostgreSQL database, with persistent volumes for the database, collected posts, and backups.
+
+1. **Configure environment**
+   ```bash
+   cp .env.example .env
+   # Edit .env — at minimum set SECRET_KEY to a long random string
+   ```
+
+2. **Build and start the stack**
+   ```bash
+   docker compose up -d --build
+   ```
+
+3. **Access the application**
+   - Open browser to `http://localhost:5021`
+   - Create an account or browse anonymously
+
+Useful commands:
+   ```bash
+   docker compose logs -f app     # follow app logs
+   docker compose down             # stop the stack (keeps data volumes)
+   docker compose down -v          # stop and delete all data volumes
+   ```
+
+To publish the image to the registry instead of building locally:
    ```bash
    docker build -t git.scorpi.us/chelsea/balanceboard:latest .
-   ```
-
-2. **Push to registry**
-   ```bash
    docker push git.scorpi.us/chelsea/balanceboard:latest
    ```
 
-3. **Deploy with docker-compose**
-   ```bash
-   docker-compose up -d
-   ```
-
 See [DEPLOYMENT.md](DEPLOYMENT.md) for detailed deployment instructions.
 
 ## Configuration

REFACTOR_GOAL.md

@@ -0,0 +1,127 @@
+# Goal: Refactor BalanceBoard into a client/server architecture
+
+## Objective
+Transform BalanceBoard from a Flask monolith with mixed server-rendered
+Jinja pages and inline-JS API consumption into a clean two-tier system:
+
+- a backend that is a pure JSON API, and
+- a separate frontend client that consumes it.
+
+Preserve all existing working logic (auth, polling, data collection, filter
+pipeline, models) and fix the known bugs along the way.
+
+## Target end state
+- Backend: Flask serving only JSON under /api/*. No render_template, no
+  Jinja page routes, no static-HTML generation. Split into blueprints
+  (auth, posts, comments, bookmarks, settings, filters, admin).
+  Posts/comments stored in PostgreSQL, not JSON files. One filter system
+  (filter_pipeline/), not two. No import-time side effects.
+- Frontend: a Vite-built SPA served as static files by Flask at /
+  (same origin), calling /api/* with session-cookie credentials. Replaces
+  dashboard.html, post_detail.html, settings/admin/bookmark templates,
+  and the dead generate_html.py path.
+- Auth: Flask-Login session cookies retained (same-origin), exposed via
+  /api/auth/* endpoints. No JWT unless a cross-origin/mobile client is
+  later required.
+
+## Non-goals (this round)
+- Do not switch to FastAPI (defer; revisit after the split is stable).
+- Do not introduce JWT/CORS (same-origin only).
+- Do not rewrite the filter pipeline logic or data-collection fetchers;
+  only consolidate and wire them.
+
+## Phases (each independently shippable)
+
+### Phase 0 - Stop the bleeding (bugfixes, no architecture change)
+- Fix UTF-8 mojibake across .py/.html/.json (icons, checkmarks, separators).
+- Fix migrate_bookmarks.py (it treats init_db's None return as a db object).
+- Make password min-length consistent (8 everywhere; reset route uses 6).
+- Fix post_detail.html undefined moment filter (comment times always
+  render "Recently").
+- Close the comment.content | safe XSS hole in post_detail.html.
+- Make non-no_filter filtersets not silently no-op when AI is disabled
+  (reject clearly or document; do not silently pass everything).
+- Remove import-time side effects from app.py (polling_service.start()
+  and filter_engine init must not run on import).
+
+### Phase 1 - Complete the API surface in Flask
+- Audit existing /api/* endpoints; fill gaps so every Jinja page's data
+  need has an API endpoint:
+  - /api/auth/login, /api/auth/register, /api/auth/me, /api/auth/logout,
+    /api/auth/password-reset/*
+  - /api/posts, /api/posts/<uuid> (post + comment tree), /api/comments/<post_uuid>
+  - /api/bookmarks, /api/bookmark (toggle), /api/bookmark-status/<uuid>
+  - /api/settings (GET/PUT profile, communities, filters, experience),
+    /api/filtersets, /api/platforms
+  - /api/admin/users/*, /api/admin/polling/*, /api/admin/cache, /api/admin/backup
+- Convert server-rendered form POST routes (settings, profile, avatar
+  upload, admin) to JSON endpoints; keep flash-message behavior as API
+  status codes/messages.
+- Split app.py into blueprints + a services/ layer.
+
+### Phase 2 - Collapse the filter stack to one system
+- Adopt filter_pipeline/ as the single filter engine.
+- Port filter_lib's rule operators and comment_lib's tree modes
+  (tree-pruning, individual, score/time/length modes) into filter_pipeline
+  as a comment-filtering stage.
+- Wire comment filtering into the live /api/posts/<uuid> path (today only
+  the dead static path filters comments).
+- Delete filter_lib.py, comment_lib.py, html_generation_lib.py,
+  generate_html.py, the active_html/ route, and the theme template path.
+  Keep themes/ only as CSS/JS asset bundles.
+
+### Phase 3 - Move posts/comments into PostgreSQL
+- Add Post and Comment SQLAlchemy models; map the existing JSON schema
+  (uuid, platform, id, title, author, timestamp, score, replies, url,
+  content, source, tags, meta, moderation_uuid, parent_comment_uuid).
+- Write a one-shot backfill migration that ingests data/posts/*.json and
+  data/comments/*.json into the DB.
+- Replace _load_posts_cache() and the directory scans in /api/posts,
+  /api/platforms, /api/content-timestamp with DB queries + a real TTL cache
+  (Flask-Caching now; Redis layer later if needed).
+- Keep data/ as an archive/export only, not the source of truth.
+
+### Phase 4 - Build the SPA client (feature-by-feature parity)
+- Scaffold a Vite SPA (framework TBD), served by Flask as static files at /
+  with a catch-all fallback to index.html.
+- Build in order: feed (list + pagination + filters + communities) ->
+  post detail (comment tree) -> auth (login/register/password-reset) ->
+  bookmarks -> settings (profile/communities/filters/experience) ->
+  admin (users/polling/logs).
+- Dev: Vite proxy -> Flask. Prod: Flask serves built dist/.
+- Use credentials: 'include' on all fetch calls; session cookies do the rest.
+
+### Phase 5 - Cut over and delete the old render path
+- Once the SPA reaches parity, remove the Jinja templates, render_template
+  calls, the templates/ folder, and the static-HTML generation.
+- Remove the now-dead _nav.html, base.html, page templates, and the
+  serve_theme/serve_logo page-serving routes (replace with plain static
+  asset routes).
+- Update README/DEPLOYMENT/Dockerfile for the new single-container deploy.
+
+### Phase 6 - Hardening
+- Add a test suite (pytest for services + API; component tests for the SPA).
+- Add lint/format (ruff + the SPA's linter) and a CI check.
+- Add a charset/encoding CI gate so the mojibake never returns.
+- Lock the API with a versioned prefix (/api/v1/*) so future changes do not
+  break shipped clients.
+
+## Decisions baked in (defaults)
+- Backend framework: Flask (kept) - not FastAPI this round.
+- Auth: Flask-Login session cookies, same-origin - not JWT.
+- Deployment: single container, Flask serves the built SPA - not split hosts.
+- Storage: PostgreSQL for posts/comments - not JSON files.
+
+## Open decisions (pick before Phase 4 starts)
+- Frontend framework: React / Vue / Svelte / Solid. No wrong answer at this
+  app's size; pick what you enjoy maintaining.
+- Whether to version the API as /api/v1 from day one (recommended - cheap
+  insurance).
+
+## Success criteria
+- app.py is gone or reduced to app-factory + blueprint registration.
+- No render_template exists in the codebase.
+- One filter system; one render path.
+- Posts/comments queried from Postgres; no full-disk-scan cache.
+- Importing the app module has zero side effects (no scheduler, no polling).
+- The SPA, served by Flask, reproduces all current user-facing features.

blueprints/__init__.py

@@ -0,0 +1 @@
+"""Flask blueprints for BalanceBoard."""

blueprints/api.py

@@ -0,0 +1,464 @@
+"""Versioned JSON API blueprint."""
+
+import json
+import logging
+from datetime import datetime, timedelta
+
+from flask import Blueprint, jsonify, request
+from flask_login import current_user, login_required
+
+from config import DEFAULT_PAGE_SIZE
+from database import db
+from extensions import get_filter_engine
+from models import Bookmark
+from security import is_safe_filterset
+from services import get_display_name_for_source, load_platform_config, post_service
+
+logger = logging.getLogger(__name__)
+
+
+FILTER_ICON_MAP = {
+    "no_filter": "\U0001f310",
+    "safe_content": "\u2705",
+    "tech_only": "\U0001f4bb",
+    "high_quality": "\u2b50",
+    "custom_example": "\U0001f3af",
+}
+
+
+def _current_filterset():
+    """Return selected filterset from query override or current user settings."""
+    filter_override = request.args.get("filter", "")
+    if filter_override and is_safe_filterset(filter_override):
+        return filter_override
+
+    if current_user.is_authenticated:
+        try:
+            user_settings = json.loads(current_user.settings) if current_user.settings else {}
+            return user_settings.get("filter_set", "no_filter")
+        except (json.JSONDecodeError, TypeError):
+            pass
+    return "no_filter"
+
+FILTER_NAME_MAP = {
+    "no_filter": "All Content",
+    "safe_content": "Safe Content",
+    "tech_only": "Tech Only",
+    "high_quality": "High Quality",
+    "custom_example": "Custom Example",
+}
+
+
+def create_api_blueprint(name="api"):
+    """Create the API blueprint so it can be mounted with a version prefix."""
+    bp = Blueprint(name, __name__)
+
+    @bp.get("/posts")
+    def posts():
+        """Get paginated posts with filtering."""
+        try:
+            platform_config = load_platform_config()
+            page = int(request.args.get("page", 1))
+            per_page = int(request.args.get("per_page", DEFAULT_PAGE_SIZE))
+            community = request.args.get("community", "")
+            platform = request.args.get("platform", "")
+            search_query = request.args.get("q", "").lower().strip()
+            filter_override = request.args.get("filter", "")
+
+            filterset_name = "no_filter"
+            user_communities = []
+            time_filter_enabled = False
+            time_filter_days = 7
+            if current_user.is_authenticated:
+                try:
+                    user_settings = json.loads(current_user.settings) if current_user.settings else {}
+                    filterset_name = user_settings.get("filter_set", "no_filter")
+                    user_communities = user_settings.get("communities", [])
+                    experience_settings = user_settings.get("experience", {})
+                    time_filter_enabled = experience_settings.get("time_filter_enabled", False)
+                    time_filter_days = experience_settings.get("time_filter_days", 7)
+                except (json.JSONDecodeError, TypeError):
+                    filterset_name = "no_filter"
+                    user_communities = []
+                    time_filter_enabled = False
+                    time_filter_days = 7
+
+            if filter_override and is_safe_filterset(filter_override):
+                filterset_name = filter_override
+
+            cached_posts, cached_comments = post_service.load()
+
+            time_cutoff = None
+            if time_filter_enabled:
+                cutoff_date = datetime.utcnow() - timedelta(days=time_filter_days)
+                time_cutoff = cutoff_date.timestamp()
+
+            raw_posts = []
+            for post_data in cached_posts.values():
+                if time_filter_enabled and time_cutoff:
+                    post_timestamp = post_data.get("timestamp", 0)
+                    if post_timestamp < time_cutoff:
+                        continue
+
+                if community and post_data.get("source", "").lower() != community.lower():
+                    continue
+
+                if platform and post_data.get("platform", "").lower() != platform.lower():
+                    continue
+
+                if user_communities:
+                    post_source = post_data.get("source", "").lower()
+                    post_platform = post_data.get("platform", "").lower()
+                    post_id = post_data.get("id", "").lower()
+                    matches_community = any(
+                        post_source == selected.lower()
+                        or post_platform == selected.lower()
+                        or selected.lower() in post_source
+                        or selected.lower() in post_id
+                        for selected in user_communities
+                        if isinstance(selected, str)
+                    )
+                    if not matches_community:
+                        continue
+
+                if search_query:
+                    title = post_data.get("title", "").lower()
+                    content = post_data.get("content", "").lower()
+                    author = post_data.get("author", "").lower()
+                    source = post_data.get("source", "").lower()
+                    if not (
+                        search_query in title
+                        or search_query in content
+                        or search_query in author
+                        or search_query in source
+                    ):
+                        continue
+
+                raw_posts.append(post_data)
+
+            filtered_posts = get_filter_engine().apply_filterset(
+                raw_posts, filterset_name, use_cache=True
+            )
+
+            response_posts = []
+            for post_data in filtered_posts:
+                post_uuid = post_data.get("uuid")
+                source_display = get_display_name_for_source(
+                    post_data.get("platform", ""),
+                    post_data.get("source", ""),
+                    platform_config,
+                )
+                response_posts.append(
+                    {
+                        "id": post_uuid,
+                        "title": post_data.get("title", "Untitled"),
+                        "author": post_data.get("author", "Unknown"),
+                        "platform": post_data.get("platform", "unknown"),
+                        "score": post_data.get("score", 0),
+                        "timestamp": post_data.get("timestamp", 0),
+                        "url": f"/post/{post_uuid}",
+                        "comments_count": len(cached_comments.get(post_uuid, [])),
+                        "content_preview": (post_data.get("content", "") or "")[:200] + "..." if post_data.get("content") else "",
+                        "source": post_data.get("source", ""),
+                        "source_display": source_display,
+                        "tags": post_data.get("tags", []),
+                        "external_url": post_data.get("url", ""),
+                        "filter_score": post_data.get("_filter_score", 0.5),
+                        "filter_categories": post_data.get("_filter_categories", []),
+                        "filter_tags": post_data.get("_filter_tags", []),
+                    }
+                )
+
+            response_posts.sort(key=lambda x: (x["filter_score"], x["timestamp"]), reverse=True)
+            total_posts = len(response_posts)
+            start_idx = (page - 1) * per_page
+            end_idx = start_idx + per_page
+            total_pages = (total_posts + per_page - 1) // per_page
+
+            return jsonify(
+                {
+                    "posts": response_posts[start_idx:end_idx],
+                    "pagination": {
+                        "current_page": page,
+                        "total_pages": total_pages,
+                        "total_posts": total_posts,
+                        "per_page": per_page,
+                        "has_next": page < total_pages,
+                        "has_prev": page > 1,
+                    },
+                }
+            )
+        except Exception as e:
+            logger.error(f"Error loading posts: {e}")
+            return jsonify(
+                {
+                    "posts": [],
+                    "error": str(e),
+                    "pagination": {
+                        "current_page": 1,
+                        "total_pages": 0,
+                        "total_posts": 0,
+                        "per_page": DEFAULT_PAGE_SIZE,
+                        "has_next": False,
+                        "has_prev": False,
+                    },
+                }
+            )
+
+    @bp.get("/posts/<post_uuid>")
+    def post_detail(post_uuid):
+        """Get one post with its comment tree."""
+        try:
+            platform_config = load_platform_config()
+            cached_posts, cached_comments = post_service.load()
+            post_data = cached_posts.get(post_uuid)
+            if not post_data:
+                return jsonify({"error": "Post not found"}), 404
+
+            post = dict(post_data)
+            post["source_display"] = get_display_name_for_source(
+                post.get("platform", ""), post.get("source", ""), platform_config
+            )
+            filterset_name = _current_filterset()
+            filtered_comments = get_filter_engine().filter_comments(
+                cached_comments.get(post_uuid, []), filterset_name
+            )
+            comments = post_service.build_comment_tree(filtered_comments)
+            return jsonify({"post": post, "comments": comments})
+        except Exception as e:
+            logger.error(f"Error loading post {post_uuid}: {e}")
+            return jsonify({"error": "Failed to load post"}), 500
+
+    @bp.get("/comments/<post_uuid>")
+    def comments(post_uuid):
+        """Get comments for a post as a tree."""
+        try:
+            _, cached_comments = post_service.load()
+            filterset_name = _current_filterset()
+            filtered_comments = get_filter_engine().filter_comments(
+                cached_comments.get(post_uuid, []), filterset_name
+            )
+            return jsonify({"comments": post_service.build_comment_tree(filtered_comments)})
+        except Exception as e:
+            logger.error(f"Error loading comments for {post_uuid}: {e}")
+            return jsonify({"error": "Failed to load comments"}), 500
+
+    @bp.get("/platforms")
+    def platforms():
+        """Get platform configuration and available communities."""
+        try:
+            platform_config = load_platform_config()
+            communities = []
+            for key, count in post_service.source_counts().items():
+                platform, source = key.split(":", 1)
+                platform_info = platform_config.get("platforms", {}).get(platform, {})
+                community_info = None
+                if platform_info.get("supports_communities"):
+                    for community in platform_info.get("communities", []):
+                        if community["id"] == source:
+                            community_info = community
+                            break
+
+                if community_info:
+                    communities.append(
+                        {
+                            "platform": platform,
+                            "id": source,
+                            "name": community_info["name"],
+                            "display_name": community_info["display_name"],
+                            "icon": community_info.get("icon", platform_info.get("icon", "\U0001f4c4")),
+                            "count": count,
+                            "description": community_info.get("description", ""),
+                        }
+                    )
+                else:
+                    display_name = get_display_name_for_source(platform, source, platform_config)
+                    communities.append(
+                        {
+                            "platform": platform,
+                            "id": source,
+                            "name": source or platform,
+                            "display_name": display_name,
+                            "icon": platform_info.get("icon", "\U0001f4c4"),
+                            "count": count,
+                            "description": f"Posts from {display_name}",
+                        }
+                    )
+
+            communities.sort(key=lambda x: x["count"], reverse=True)
+            return jsonify(
+                {
+                    "platforms": platform_config.get("platforms", {}),
+                    "communities": communities,
+                    "total_communities": len(communities),
+                }
+            )
+        except Exception as e:
+            logger.error(f"Error loading platform configuration: {e}")
+            return jsonify({"platforms": {}, "communities": [], "total_communities": 0, "error": str(e)})
+
+    @bp.get("/content-timestamp")
+    def content_timestamp():
+        """Get the last content update timestamp for auto-refresh."""
+        try:
+            return jsonify({"timestamp": post_service.latest_content_mtime()})
+        except Exception as e:
+            logger.error(f"Error getting content timestamp: {e}")
+            return jsonify({"error": "Failed to get content timestamp"}), 500
+
+    @bp.post("/bookmark")
+    @login_required
+    def bookmark():
+        """Toggle bookmark status for a post."""
+        try:
+            data = request.get_json()
+            if not data or "post_uuid" not in data:
+                return jsonify({"error": "Missing post_uuid"}), 400
+
+            post_uuid = data["post_uuid"]
+            if not post_uuid:
+                return jsonify({"error": "Invalid post_uuid"}), 400
+
+            existing_bookmark = Bookmark.query.filter_by(
+                user_id=current_user.id, post_uuid=post_uuid
+            ).first()
+            if existing_bookmark:
+                db.session.delete(existing_bookmark)
+                db.session.commit()
+                return jsonify({"bookmarked": False, "message": "Bookmark removed"})
+
+            cached_posts, _ = post_service.load()
+            post_data = cached_posts.get(post_uuid, {})
+            new_bookmark = Bookmark(
+                user_id=current_user.id,
+                post_uuid=post_uuid,
+                title=post_data.get("title", ""),
+                platform=post_data.get("platform", ""),
+                source=post_data.get("source", ""),
+            )
+            db.session.add(new_bookmark)
+            db.session.commit()
+            return jsonify({"bookmarked": True, "message": "Bookmark added"})
+        except Exception as e:
+            db.session.rollback()
+            logger.error(f"Error toggling bookmark: {e}")
+            return jsonify({"error": "Failed to toggle bookmark"}), 500
+
+    @bp.get("/bookmarks")
+    @login_required
+    def bookmarks():
+        """Get the current user's bookmarks."""
+        try:
+            page = int(request.args.get("page", 1))
+            per_page = int(request.args.get("per_page", DEFAULT_PAGE_SIZE))
+            bookmarks_query = Bookmark.query.filter_by(user_id=current_user.id).order_by(
+                Bookmark.created_at.desc()
+            )
+            total_bookmarks = bookmarks_query.count()
+            bookmark_rows = bookmarks_query.offset((page - 1) * per_page).limit(per_page).all()
+            cached_posts, cached_comments = post_service.load()
+
+            bookmark_posts = []
+            for bookmark_row in bookmark_rows:
+                post_data = cached_posts.get(bookmark_row.post_uuid)
+                if post_data:
+                    bookmark_posts.append(
+                        {
+                            "id": bookmark_row.post_uuid,
+                            "title": post_data.get("title", bookmark_row.title or "Untitled"),
+                            "author": post_data.get("author", "Unknown"),
+                            "platform": post_data.get("platform", bookmark_row.platform or "unknown"),
+                            "score": post_data.get("score", 0),
+                            "timestamp": post_data.get("timestamp", 0),
+                            "url": f"/post/{bookmark_row.post_uuid}",
+                            "comments_count": len(cached_comments.get(bookmark_row.post_uuid, [])),
+                            "content_preview": (post_data.get("content", "") or "")[:200] + "..." if post_data.get("content") else "",
+                            "source": post_data.get("source", bookmark_row.source or ""),
+                            "bookmarked_at": bookmark_row.created_at.isoformat(),
+                            "external_url": post_data.get("url", ""),
+                        }
+                    )
+                else:
+                    bookmark_posts.append(
+                        {
+                            "id": bookmark_row.post_uuid,
+                            "title": bookmark_row.title or "Untitled",
+                            "author": "Unknown",
+                            "platform": bookmark_row.platform or "unknown",
+                            "score": 0,
+                            "timestamp": 0,
+                            "url": f"/post/{bookmark_row.post_uuid}",
+                            "comments_count": 0,
+                            "content_preview": "Content no longer available",
+                            "source": bookmark_row.source or "",
+                            "bookmarked_at": bookmark_row.created_at.isoformat(),
+                            "external_url": "",
+                            "archived": True,
+                        }
+                    )
+
+            total_pages = (total_bookmarks + per_page - 1) // per_page
+            return jsonify(
+                {
+                    "posts": bookmark_posts,
+                    "pagination": {
+                        "current_page": page,
+                        "total_pages": total_pages,
+                        "total_posts": total_bookmarks,
+                        "per_page": per_page,
+                        "has_next": page < total_pages,
+                        "has_prev": page > 1,
+                    },
+                }
+            )
+        except Exception as e:
+            logger.error(f"Error getting bookmarks: {e}")
+            return jsonify({"error": "Failed to get bookmarks"}), 500
+
+    @bp.get("/bookmark-status/<post_uuid>")
+    @login_required
+    def bookmark_status(post_uuid):
+        """Check if a post is bookmarked by the current user."""
+        try:
+            bookmark_row = Bookmark.query.filter_by(
+                user_id=current_user.id, post_uuid=post_uuid
+            ).first()
+            return jsonify({"bookmarked": bookmark_row is not None})
+        except Exception as e:
+            logger.error(f"Error checking bookmark status: {e}")
+            return jsonify({"error": "Failed to check bookmark status"}), 500
+
+    @bp.get("/filters")
+    def filters():
+        """Get available filtersets."""
+        try:
+            filter_rows = []
+            current_filter = "no_filter"
+            if current_user.is_authenticated:
+                try:
+                    user_settings = json.loads(current_user.settings) if current_user.settings else {}
+                    current_filter = user_settings.get("filter_set", "no_filter")
+                except (json.JSONDecodeError, TypeError):
+                    pass
+
+            filter_engine = get_filter_engine()
+            for filterset_name in filter_engine.get_available_filtersets():
+                filterset_config = filter_engine.config.get_filterset(filterset_name)
+                if filterset_config:
+                    filter_rows.append(
+                        {
+                            "id": filterset_name,
+                            "name": FILTER_NAME_MAP.get(
+                                filterset_name, filterset_name.replace("_", " ").title()
+                            ),
+                            "description": filterset_config.get("description", ""),
+                            "icon": FILTER_ICON_MAP.get(filterset_name, "\U0001f527"),
+                            "active": filterset_name == current_filter,
+                        }
+                    )
+            return jsonify({"filters": filter_rows})
+        except Exception as e:
+            logger.error(f"Error getting filters: {e}")
+            return jsonify({"error": "Failed to get filters"}), 500
+
+    return bp

comment_lib.py

@@ -1,159 +0,0 @@
-"""
-Comment Library
-Atomic functions for comment processing and tree manipulation.
-"""
-
-import json
-from pathlib import Path
-from typing import List, Dict, Optional
-
-
-class comment_lib:
-    """Atomic comment processing functions"""
-
-    @staticmethod
-    def build_comment_tree(flat_comments: List[Dict]) -> List[Dict]:
-        """
-        Convert flat array of comments to nested tree structure.
-        Returns list of root-level comments with nested children.
-        """
-        if not flat_comments:
-            return []
-
-        # Create lookup dict
-        comment_map = {c['uuid']: {**c, 'children': []} for c in flat_comments}
-
-        # Build tree
-        roots = []
-        for comment in flat_comments:
-            parent_uuid = comment.get('parent_comment_uuid')
-            if parent_uuid and parent_uuid in comment_map:
-                comment_map[parent_uuid]['children'].append(comment_map[comment['uuid']])
-            else:
-                roots.append(comment_map[comment['uuid']])
-
-        return roots
-
-    @staticmethod
-    def flatten_comment_tree(tree: List[Dict]) -> List[Dict]:
-        """
-        Convert nested tree structure to flat array.
-        Removes 'children' key from each comment.
-        """
-        flat = []
-
-        def traverse(nodes):
-            for node in nodes:
-                children = node.pop('children', [])
-                flat.append(node)
-                if children:
-                    traverse(children)
-
-        traverse(tree)
-        return flat
-
-    @staticmethod
-    def load_comments_for_post(post_uuid: str, data_dir: str) -> List[Dict]:
-        """
-        Load all comment files linked to a post.
-        Scans comment directory for comments with matching post_uuid.
-        """
-        comments_dir = Path(data_dir) / 'comments'
-        if not comments_dir.exists():
-            return []
-
-        comments = []
-        for comment_file in comments_dir.glob('*.json'):
-            with open(comment_file, 'r') as f:
-                comment = json.load(f)
-                if comment.get('post_uuid') == post_uuid:
-                    comments.append(comment)
-
-        return comments
-
-    @staticmethod
-    def sort_comments(comments: List[Dict], by: str = 'score', order: str = 'desc') -> List[Dict]:
-        """
-        Sort comments by specified field.
-
-        Args:
-            comments: List of comment dicts
-            by: Field to sort by ('score', 'timestamp', 'depth', 'author')
-            order: 'asc' or 'desc'
-
-        Returns:
-            Sorted list of comments
-        """
-        reverse = (order == 'desc')
-
-        return sorted(comments, key=lambda c: c.get(by, 0), reverse=reverse)
-
-    @staticmethod
-    def get_comment_depth(comment: Dict, comment_map: Dict) -> int:
-        """
-        Calculate actual depth of a comment by traversing up parent chain.
-        Useful for recalculating depth after filtering.
-        """
-        depth = 0
-        current_uuid = comment.get('parent_comment_uuid')
-
-        while current_uuid and current_uuid in comment_map:
-            depth += 1
-            current_uuid = comment_map[current_uuid].get('parent_comment_uuid')
-
-        return depth
-
-    @staticmethod
-    def get_comment_stats(comments: List[Dict]) -> Dict:
-        """
-        Get statistics about a comment list.
-
-        Returns:
-            Dict with total, max_depth, avg_score, etc.
-        """
-        if not comments:
-            return {
-                'total': 0,
-                'max_depth': 0,
-                'avg_score': 0,
-                'total_score': 0
-            }
-
-        depths = [c.get('depth', 0) for c in comments]
-        scores = [c.get('score', 0) for c in comments]
-
-        return {
-            'total': len(comments),
-            'max_depth': max(depths) if depths else 0,
-            'avg_score': sum(scores) / len(scores) if scores else 0,
-            'total_score': sum(scores)
-        }
-
-    @staticmethod
-    def filter_by_depth(comments: List[Dict], max_depth: int) -> List[Dict]:
-        """
-        Filter comments to only include those at or below max_depth.
-        """
-        return [c for c in comments if c.get('depth', 0) <= max_depth]
-
-    @staticmethod
-    def get_top_level_comments(comments: List[Dict]) -> List[Dict]:
-        """
-        Get only top-level comments (depth 0, no parent).
-        """
-        return [c for c in comments if c.get('depth', 0) == 0 or not c.get('parent_comment_uuid')]
-
-    @staticmethod
-    def count_replies(comment_uuid: str, comments: List[Dict]) -> int:
-        """
-        Count total number of replies (direct and nested) for a comment.
-        """
-        count = 0
-
-        for comment in comments:
-            if comment.get('parent_comment_uuid') == comment_uuid:
-                count += 1
-                # Recursively count this comment's replies
-                count += comment_lib.count_replies(comment['uuid'], comments)
-
-        return count

config.py

@@ -0,0 +1,43 @@
+"""Application configuration.
+
+Centralizes environment-driven Flask config and app-wide constants so they
+can be imported by the app factory, services, and route modules without each
+reaching into ``os.getenv`` independently.
+"""
+
+import os
+
+from dotenv import load_dotenv
+
+# Load .env once when the config module is imported.
+load_dotenv()
+
+
+class Config:
+    """Flask configuration loaded from the environment."""
+
+    SECRET_KEY = os.getenv("SECRET_KEY", "dev-secret-key-change-in-production")
+    MAX_CONTENT_LENGTH = 16 * 1024 * 1024  # 16MB max request body (avatar uploads)
+    ALLOW_ANONYMOUS_ACCESS = os.getenv("ALLOW_ANONYMOUS_ACCESS", "true").lower() == "true"
+
+    # Branding
+    APP_NAME = os.getenv("APP_NAME", "BalanceBoard")
+    LOGO_PATH = os.getenv("LOGO_PATH", "logo.png")
+
+    # Auth0 (optional; empty disables OAuth login)
+    AUTH0_DOMAIN = os.getenv("AUTH0_DOMAIN", "")
+    AUTH0_CLIENT_ID = os.getenv("AUTH0_CLIENT_ID", "")
+    AUTH0_CLIENT_SECRET = os.getenv("AUTH0_CLIENT_SECRET", "")
+    AUTH0_AUDIENCE = os.getenv("AUTH0_AUDIENCE", "")
+
+
+# App-wide constants (not Flask config keys). Imported directly by modules.
+ALLOWED_EXTENSIONS = {"png", "jpg", "jpeg", "gif"}
+UPLOAD_FOLDER = "static/avatars"
+MAX_FILENAME_LENGTH = 100
+DEFAULT_PORT = 5021
+DEFAULT_PAGE_SIZE = 20
+MIN_PASSWORD_LENGTH = 8
+MAX_USERNAME_LENGTH = 80
+MAX_EMAIL_LENGTH = 120
+MAX_COMMUNITY_NAME_LENGTH = 100

data_collection.py

@@ -11,6 +11,8 @@ from datetime import datetime, timedelta
 from pathlib import Path
 from typing import List, Dict, Tuple
 from data_collection_lib import data_methods
+from database import db
+from models import Comment, Post
 
 
 # ===== STORAGE FUNCTIONS =====
@@ -103,6 +105,52 @@ def create_moderation_stub(target_id: str, target_type: str, dirs: Dict) -> str:
     return mod_uuid
 
 
+
+
+def upsert_post_record(post: Dict):
+    """Best-effort DB upsert; JSON files remain an archive/export artifact."""
+    try:
+        db.session.merge(Post(
+            uuid=post["uuid"],
+            external_id=post.get("id"),
+            platform=post.get("platform", "") or "",
+            source=post.get("source", "") or "",
+            title=(post.get("title") or "")[:500],
+            author=post.get("author"),
+            url=post.get("url"),
+            content=post.get("content"),
+            score=int(post.get("score", 0) or 0),
+            timestamp=int(post.get("timestamp", 0) or 0),
+            tags=post.get("tags"),
+            moderation_uuid=post.get("moderation_uuid"),
+        ))
+        db.session.commit()
+    except Exception as e:
+        db.session.rollback()
+        print(f"Warning: could not persist post {post.get('uuid')} to DB: {e}")
+
+
+def upsert_comment_record(comment: Dict):
+    """Best-effort DB upsert for collected comments."""
+    try:
+        db.session.merge(Comment(
+            uuid=comment["uuid"],
+            post_uuid=comment.get("post_uuid") or "",
+            platform=comment.get("platform"),
+            parent_comment_uuid=comment.get("parent_comment_uuid"),
+            comment_id=comment.get("comment_id") or comment.get("id"),
+            author=comment.get("author"),
+            content=comment.get("content"),
+            score=int(comment.get("score", 0) or 0),
+            timestamp=int(comment.get("timestamp", 0) or 0),
+            depth=int(comment.get("depth", 0) or 0),
+            moderation_uuid=comment.get("moderation_uuid"),
+        ))
+        db.session.commit()
+    except Exception as e:
+        db.session.rollback()
+        print(f"Warning: could not persist comment {comment.get('uuid')} to DB: {e}")
+
 # ===== POST FUNCTIONS =====
 
 def save_post(post: Dict, platform: str, index: Dict, dirs: Dict) -> str:
@@ -122,6 +170,8 @@ def save_post(post: Dict, platform: str, index: Dict, dirs: Dict) -> str:
     with open(post_file, 'w') as f:
         json.dump(post, f, indent=2)
 
+    upsert_post_record(post)
+
     # Update index
     index[post_id] = post_uuid
 
@@ -147,6 +197,8 @@ def save_comment(comment: Dict, post_uuid: str, platform: str, dirs: Dict) -> st
     with open(comment_file, 'w') as f:
         json.dump(comment, f, indent=2)
 
+    upsert_comment_record(comment)
+
     return comment_uuid
 
 

data_collection_lib.py

@@ -2,6 +2,7 @@ import requests
 import json
 import datetime as dt
 import time
+from platforms import discover_modules, get_platform_fetcher
 from collections import defaultdict, deque
 
 
@@ -70,21 +71,12 @@ _rate_limiter = RateLimiter()
 class data_methods():
     @staticmethod
     def getData(platform, start_date, end_date, community, max_posts):
-        if platform == "reddit":
+        discover_modules(["platforms.builtins"])
-            return data_methods.fetchers.getRedditData(start_date, end_date, community, max_posts)
+        fetcher = get_platform_fetcher(platform)
-        elif  platform == "pushshift":
+        if not fetcher:
-            return data_methods.fetchers.getPushshiftData(start_date, end_date, community, max_posts)
-        elif platform == "hackernews":
-            return data_methods.fetchers.getHackerNewsData(start_date, end_date, community, max_posts)
-        elif platform == "lobsters":
-            return data_methods.fetchers.getLobstersData(start_date, end_date, community, max_posts)
-        elif platform == "stackexchange":
-            return data_methods.fetchers.getStackExchangeData(start_date, end_date, community, max_posts)
-        elif platform == "rss":
-            return data_methods.fetchers.getRSSData(start_date, end_date, community, max_posts)
-        else:
             print("dataGrab.getData: platform not recognized")
             return None
+        return fetcher.fetch_posts(start_date, end_date, community, max_posts)
 
     # ===== ATOMIC UTILITY FUNCTIONS =====
     class utils():

docker-compose.yml

@@ -1,5 +1,3 @@
-version: '3.8'
-
 services:
   postgres:
     image: postgres:15
@@ -40,6 +38,7 @@ services:
       FLASK_ENV: production
       DEBUG: "False"
       SECRET_KEY: ${SECRET_KEY:-change-this-secret-key-in-production}
+      ALLOW_ANONYMOUS_ACCESS: ${ALLOW_ANONYMOUS_ACCESS:-true}
 
       # Auth0 configuration (optional)
       AUTH0_DOMAIN: ${AUTH0_DOMAIN:-}
@@ -51,7 +50,6 @@ services:
       - ./data:/app/data
       - ./static:/app/static
       - ./backups:/app/backups
-      - ./active_html:/app/active_html
     depends_on:
       postgres:
         condition: service_healthy

extensions.py

@@ -0,0 +1,43 @@
+"""Shared extension instances and accessors.
+
+Extensions are created here (unbound to any app) and initialized against the
+app inside ``create_app()``. This lets blueprints/services import the single
+shared ``login_manager`` / ``oauth`` without importing ``app`` itself.
+
+``filter_engine`` and ``polling_service`` are accessed lazily so importing this
+module (or ``app``) has no side effects.
+"""
+
+import logging
+
+from flask_login import LoginManager
+from authlib.integrations.flask_client import OAuth
+
+logger = logging.getLogger(__name__)
+
+# Flask-Login: bound to the app in create_app().
+login_manager = LoginManager()
+login_manager.login_view = "login"
+login_manager.login_message = "Please log in to access this page."
+
+# Authlib OAuth: bound to the app in create_app().
+oauth = OAuth()
+
+
+def get_filter_engine():
+    """Return the singleton FilterEngine instance (lazy).
+
+    ``FilterEngine.get_instance()`` is itself a lazy singleton, so this is
+    cheap to call from routes/services. Kept as a function (not a module
+    global) so importing this module never triggers filter-engine init.
+    """
+    from filter_pipeline import FilterEngine
+
+    return FilterEngine.get_instance()
+
+
+def get_polling_service():
+    """Return the shared polling service singleton (lazy import)."""
+    from polling_service import polling_service
+
+    return polling_service

filter_config.json

@@ -0,0 +1,49 @@
+{
+  "ai": {
+    "enabled": false,
+    "openrouter_key_file": "openrouter_key.txt",
+    "models": {
+      "cheap": "meta-llama/llama-3.3-70b-instruct",
+      "smart": "meta-llama/llama-3.3-70b-instruct"
+    },
+    "parallel_workers": 10,
+    "timeout_seconds": 60,
+    "note": "Using only Llama 70B for cost efficiency"
+  },
+  "cache": {
+    "enabled": true,
+    "ai_cache_dir": "data/filter_cache",
+    "filterset_cache_ttl_hours": 24
+  },
+  "pipeline": {
+    "default_stages": ["categorizer", "moderator", "filter", "plugins", "ranker"],
+    "batch_size": 50,
+    "enable_parallel": true,
+    "stage_modules": []
+  },
+  "plugins": {
+    "modules": [],
+    "enabled": ["keyword", "quality"],
+    "configs": {
+      "keyword": {
+        "enabled": true,
+        "blocklist": [],
+        "allowlist": [],
+        "check_title": true,
+        "check_content": true
+      },
+      "quality": {
+        "enabled": true,
+        "min_title_length": 10,
+        "max_title_length": 300,
+        "min_content_length": 0,
+        "max_caps_ratio": 0.5,
+        "max_exclamation_marks": 3
+      }
+    }
+  },
+  "output": {
+    "filtered_dir": "data/filtered",
+    "save_rejected": false
+  }
+}

filter_lib.py

@@ -1,345 +0,0 @@
-"""
-Filter Library
-Bare bones utilities for filtering posts and comments based on rules.
-"""
-
-import json
-from pathlib import Path
-from typing import Dict, List, Any, Optional
-from abc import ABC, abstractmethod
-
-
-class filter_lib:
-    """Atomic filter utility functions"""
-
-    @staticmethod
-    def load_filterset(path: str) -> Dict:
-        """Load filterset JSON from file"""
-        with open(path, 'r') as f:
-            return json.load(f)
-
-    @staticmethod
-    def load_data_by_uuid(uuid: str, data_dir: str) -> Optional[Dict]:
-        """Load single JSON file by UUID"""
-        file_path = Path(data_dir) / f"{uuid}.json"
-        if not file_path.exists():
-            return None
-
-        with open(file_path, 'r') as f:
-            return json.load(f)
-
-    @staticmethod
-    def merge_moderation(item: Dict, moderation_data: Dict) -> Dict:
-        """Merge item with its moderation data by UUID"""
-        mod_uuid = item.get('moderation_uuid')
-        if mod_uuid and mod_uuid in moderation_data:
-            item['moderation'] = moderation_data[mod_uuid]
-        else:
-            item['moderation'] = {}
-        return item
-
-    @staticmethod
-    def get_nested_value(obj: Dict, path: str) -> Any:
-        """Get value from nested dict using dot notation (e.g., 'moderation.flags.is_safe')"""
-        keys = path.split('.')
-        value = obj
-        for key in keys:
-            if isinstance(value, dict) and key in value:
-                value = value[key]
-            else:
-                return None
-        return value
-
-    @staticmethod
-    def evaluate_rule(value: Any, operator: str, target: Any) -> bool:
-        """Evaluate single rule: value operator target"""
-        if value is None:
-            return False
-
-        if operator == 'equals':
-            return value == target
-        elif operator == 'not_equals':
-            return value != target
-        elif operator == 'in':
-            return value in target
-        elif operator == 'not_in':
-            return value not in target
-        elif operator == 'min':
-            return value >= target
-        elif operator == 'max':
-            return value <= target
-        elif operator == 'after':
-            return value > target
-        elif operator == 'before':
-            return value < target
-        elif operator == 'contains':
-            return target in value
-        elif operator == 'excludes':
-            if isinstance(value, list):
-                return not any(item in target for item in value)
-            return target not in value
-        elif operator == 'includes':
-            if isinstance(value, list):
-                return target in value
-            return False
-        elif operator == 'includes_any':
-            # Special case for topic matching
-            if isinstance(value, list) and isinstance(target, list):
-                for topic_item in value:
-                    for rule in target:
-                        if (topic_item.get('topic') == rule.get('topic') and
-                            topic_item.get('confidence', 0) >= rule.get('confidence_min', 0)):
-                            return True
-            return False
-        elif operator == 'min_length':
-            return len(str(value)) >= target
-        elif operator == 'max_length':
-            return len(str(value)) <= target
-        else:
-            return False
-
-    @staticmethod
-    def apply_rules(item: Dict, rules: Dict) -> bool:
-        """
-        Apply multiple rules to item, return True if all pass (AND logic).
-        Rules format: {"field.path": {"operator": value}}
-        """
-        if not rules:
-            return True  # Empty rules = pass all
-
-        for field_path, rule_def in rules.items():
-            value = filter_lib.get_nested_value(item, field_path)
-
-            # Support multiple operators per field
-            for operator, target in rule_def.items():
-                if not filter_lib.evaluate_rule(value, operator, target):
-                    return False
-
-        return True
-
-
-class CommentFilterMode(ABC):
-    """Abstract base class for comment filtering modes"""
-
-    @staticmethod
-    @abstractmethod
-    def filter(comments: List[Dict], rules: Dict, moderation_data: Dict) -> List[Dict]:
-        """Filter comments based on rules and moderation data. Override in subclasses."""
-        pass
-
-
-class TreePruningMode(CommentFilterMode):
-    """
-    Tree Pruning Filter Mode (Default)
-    Fruit of the poisonous tree: if parent fails moderation, remove all children.
-    """
-
-    @staticmethod
-    def filter(comments: List[Dict], rules: Dict, moderation_data: Dict) -> List[Dict]:
-        """
-        Filter comments using tree pruning.
-        Build tree structure, evaluate from root down, prune toxic branches.
-        """
-        if not comments:
-            return []
-
-        # Merge moderation data into comments
-        for comment in comments:
-            filter_lib.merge_moderation(comment, moderation_data)
-
-        # Build tree structure
-        tree = TreePruningMode._build_tree(comments)
-
-        # Prune tree based on rules
-        pruned = TreePruningMode._prune_tree(tree, rules)
-
-        # Flatten back to list
-        return TreePruningMode._flatten_tree(pruned)
-
-    @staticmethod
-    def _build_tree(comments: List[Dict]) -> List[Dict]:
-        """Build nested tree from flat comment list"""
-        # Create lookup dict
-        comment_map = {c['uuid']: {**c, 'children': []} for c in comments}
-
-        # Build tree
-        roots = []
-        for comment in comments:
-            parent_uuid = comment.get('parent_comment_uuid')
-            if parent_uuid and parent_uuid in comment_map:
-                comment_map[parent_uuid]['children'].append(comment_map[comment['uuid']])
-            else:
-                roots.append(comment_map[comment['uuid']])
-
-        return roots
-
-    @staticmethod
-    def _prune_tree(tree: List[Dict], rules: Dict) -> List[Dict]:
-        """
-        Recursively prune tree.
-        If node fails rules, remove it and all children.
-        """
-        pruned = []
-
-        for node in tree:
-            # Check if this node passes rules
-            if filter_lib.apply_rules(node, rules):
-                # Node passes, recursively check children
-                if node.get('children'):
-                    node['children'] = TreePruningMode._prune_tree(node['children'], rules)
-                pruned.append(node)
-            # If node fails, it and all children are discarded (tree pruning)
-
-        return pruned
-
-    @staticmethod
-    def _flatten_tree(tree: List[Dict]) -> List[Dict]:
-        """Flatten tree back to list"""
-        flat = []
-
-        def traverse(nodes):
-            for node in nodes:
-                children = node.pop('children', [])
-                flat.append(node)
-                if children:
-                    traverse(children)
-
-        traverse(tree)
-        return flat
-
-
-class IndividualFilterMode(CommentFilterMode):
-    """
-    Individual Filter Mode
-    Each comment evaluated independently, no tree pruning.
-    """
-
-    @staticmethod
-    def filter(comments: List[Dict], rules: Dict, moderation_data: Dict) -> List[Dict]:
-        """Filter comments individually"""
-        filtered = []
-
-        for comment in comments:
-            # Merge moderation
-            filter_lib.merge_moderation(comment, moderation_data)
-
-            # Apply rules
-            if filter_lib.apply_rules(comment, rules):
-                filtered.append(comment)
-
-        return filtered
-
-
-class ScoreBasedFilterMode(CommentFilterMode):
-    """
-    Score-Based Filter Mode
-    Filter comments based on score thresholds, keeping high-quality content.
-    """
-
-    @staticmethod
-    def filter(comments: List[Dict], rules: Dict, moderation_data: Dict) -> List[Dict]:
-        """Filter comments based on score and rules"""
-        filtered = []
-
-        for comment in comments:
-            # Merge moderation
-            filter_lib.merge_moderation(comment, moderation_data)
-
-            # Apply basic rules first
-            if not filter_lib.apply_rules(comment, rules):
-                continue
-
-            # Additional score-based filtering
-            score = comment.get('score', 0)
-            min_score = rules.get('score', {}).get('min', -1000)  # Default very low threshold
-            
-            if score >= min_score:
-                filtered.append(comment)
-
-        return filtered
-
-
-class TimeBoundFilterMode(CommentFilterMode):
-    """
-    Time-Bound Filter Mode
-    Filter comments within specific time ranges.
-    """
-
-    @staticmethod
-    def filter(comments: List[Dict], rules: Dict, moderation_data: Dict) -> List[Dict]:
-        """Filter comments within time bounds"""
-        from datetime import datetime
-        
-        filtered = []
-
-        for comment in comments:
-            # Merge moderation
-            filter_lib.merge_moderation(comment, moderation_data)
-
-            # Apply basic rules first
-            if not filter_lib.apply_rules(comment, rules):
-                continue
-
-            # Time-based filtering
-            timestamp = comment.get('timestamp')
-            if timestamp:
-                try:
-                    comment_time = datetime.fromisoformat(timestamp.replace('Z', '+00:00'))
-                    time_rules = rules.get('timestamp', {})
-                    
-                    after = time_rules.get('after')
-                    before = time_rules.get('before')
-                    
-                    if after:
-                        after_time = datetime.fromisoformat(after.replace('Z', '+00:00'))
-                        if comment_time <= after_time:
-                            continue
-                    
-                    if before:
-                        before_time = datetime.fromisoformat(before.replace('Z', '+00:00'))
-                        if comment_time >= before_time:
-                            continue
-                            
-                    filtered.append(comment)
-                except (ValueError, TypeError):
-                    # Skip malformed timestamps
-                    continue
-            else:
-                # No timestamp, include if no time rules
-                if 'timestamp' not in rules:
-                    filtered.append(comment)
-
-        return filtered
-
-
-class ContentLengthFilterMode(CommentFilterMode):
-    """
-    Content Length Filter Mode
-    Filter comments based on content length criteria.
-    """
-
-    @staticmethod
-    def filter(comments: List[Dict], rules: Dict, moderation_data: Dict) -> List[Dict]:
-        """Filter comments based on content length"""
-        filtered = []
-
-        for comment in comments:
-            # Merge moderation
-            filter_lib.merge_moderation(comment, moderation_data)
-
-            # Apply basic rules first
-            if not filter_lib.apply_rules(comment, rules):
-                continue
-
-            # Content length filtering
-            content = comment.get('content', '')
-            content_length = len(content)
-            
-            length_rules = rules.get('content_length', {})
-            min_length = length_rules.get('min', 0)
-            max_length = length_rules.get('max', float('inf'))
-            
-            if min_length <= content_length <= max_length:
-                filtered.append(comment)
-
-        return filtered

filter_pipeline/__init__.py

@@ -0,0 +1,17 @@
+"""
+Filter Pipeline Package
+Content filtering, categorization, and ranking system for BalanceBoard.
+"""
+
+from .engine import FilterEngine
+from .models import FilterResult, ProcessingStatus
+from .registry import register_stage, register_plugin
+
+__all__ = [
+    'FilterEngine',
+    'FilterResult',
+    'ProcessingStatus',
+    'register_stage',
+    'register_plugin',
+]
+__version__ = '1.0.0'

filter_pipeline/ai_client.py

@@ -0,0 +1,326 @@
+"""
+AI Client
+OpenRouter API client for content analysis (Llama 70B only).
+"""
+
+import requests
+import logging
+import time
+from typing import Optional, Dict, Any
+
+logger = logging.getLogger(__name__)
+
+
+class OpenRouterClient:
+    """
+    OpenRouter API client for AI-powered content analysis.
+    Uses only Llama 70B for cost efficiency.
+    """
+
+    def __init__(self, api_key: str, model: str = 'meta-llama/llama-3.3-70b-instruct'):
+        """
+        Initialize OpenRouter client.
+
+        Args:
+            api_key: OpenRouter API key
+            model: Model to use (default: Llama 70B)
+        """
+        self.api_key = api_key
+        self.model = model
+        self.base_url = 'https://openrouter.ai/api/v1/chat/completions'
+        self.timeout = 60
+        self.max_retries = 3
+        self.retry_delay = 2  # seconds
+
+    def call_model(
+        self,
+        prompt: str,
+        max_tokens: int = 500,
+        temperature: float = 0.7,
+        system_prompt: Optional[str] = None
+    ) -> str:
+        """
+        Call AI model with prompt.
+
+        Args:
+            prompt: User prompt
+            max_tokens: Maximum tokens in response
+            temperature: Sampling temperature (0.0-1.0)
+            system_prompt: Optional system prompt
+
+        Returns:
+            Model response text
+
+        Raises:
+            Exception if API call fails after retries
+        """
+        messages = []
+
+        if system_prompt:
+            messages.append({'role': 'system', 'content': system_prompt})
+
+        messages.append({'role': 'user', 'content': prompt})
+
+        payload = {
+            'model': self.model,
+            'messages': messages,
+            'max_tokens': max_tokens,
+            'temperature': temperature
+        }
+
+        headers = {
+            'Authorization': f'Bearer {self.api_key}',
+            'Content-Type': 'application/json',
+            'HTTP-Referer': 'https://github.com/balanceboard',
+            'X-Title': 'BalanceBoard Filter Pipeline'
+        }
+
+        # Retry loop
+        last_error = None
+        for attempt in range(self.max_retries):
+            try:
+                response = requests.post(
+                    self.base_url,
+                    headers=headers,
+                    json=payload,
+                    timeout=self.timeout
+                )
+
+                response.raise_for_status()
+                data = response.json()
+
+                # Extract response text
+                result = data['choices'][0]['message']['content'].strip()
+
+                logger.debug(f"AI call successful (attempt {attempt + 1})")
+                return result
+
+            except requests.exceptions.RequestException as e:
+                last_error = e
+                logger.warning(f"AI call failed (attempt {attempt + 1}/{self.max_retries}): {e}")
+
+                if attempt < self.max_retries - 1:
+                    time.sleep(self.retry_delay * (attempt + 1))  # Exponential backoff
+                continue
+
+        # All retries failed
+        error_msg = f"AI call failed after {self.max_retries} attempts: {last_error}"
+        logger.error(error_msg)
+        raise Exception(error_msg)
+
+    def categorize(self, title: str, content: str, categories: list) -> Dict[str, Any]:
+        """
+        Categorize content into predefined categories.
+
+        Args:
+            title: Post title
+            content: Post content/description
+            categories: List of valid category names
+
+        Returns:
+            Dict with 'category' and 'confidence' keys
+        """
+        category_list = ', '.join(categories)
+
+        prompt = f"""Classify this content into ONE of these categories: {category_list}
+
+Title: {title}
+Content: {content[:500]}
+
+Respond in this EXACT format:
+CATEGORY: [category name]
+CONFIDENCE: [0.0-1.0]"""
+
+        try:
+            response = self.call_model(prompt, max_tokens=20, temperature=0.3)
+
+            # Parse response
+            lines = response.strip().split('\n')
+            category = None
+            confidence = 0.5
+
+            for line in lines:
+                if line.startswith('CATEGORY:'):
+                    category = line.split(':', 1)[1].strip().lower()
+                elif line.startswith('CONFIDENCE:'):
+                    try:
+                        confidence = float(line.split(':', 1)[1].strip())
+                    except:
+                        confidence = 0.5
+
+            # Validate category
+            if category not in [c.lower() for c in categories]:
+                category = categories[0].lower()  # Default to first category
+
+            return {
+                'category': category,
+                'confidence': confidence
+            }
+
+        except Exception as e:
+            logger.error(f"Categorization failed: {e}")
+            return {
+                'category': categories[0].lower(),
+                'confidence': 0.0
+            }
+
+    def moderate(self, title: str, content: str) -> Dict[str, Any]:
+        """
+        Perform content moderation (safety analysis).
+
+        Args:
+            title: Post title
+            content: Post content/description
+
+        Returns:
+            Dict with moderation flags and scores
+        """
+        prompt = f"""Analyze this content for safety issues.
+
+Title: {title}
+Content: {content[:500]}
+
+Respond in this EXACT format:
+VIOLENCE: [0.0-1.0]
+SEXUAL: [0.0-1.0]
+HATE_SPEECH: [0.0-1.0]
+HARASSMENT: [0.0-1.0]
+IS_SAFE: [YES/NO]"""
+
+        try:
+            response = self.call_model(prompt, max_tokens=50, temperature=0.3)
+
+            # Parse response
+            moderation = {
+                'violence': 0.0,
+                'sexual_content': 0.0,
+                'hate_speech': 0.0,
+                'harassment': 0.0,
+                'is_safe': True
+            }
+
+            lines = response.strip().split('\n')
+            for line in lines:
+                if ':' not in line:
+                    continue
+
+                key, value = line.split(':', 1)
+                key = key.strip().lower()
+                value = value.strip()
+
+                if key == 'violence':
+                    moderation['violence'] = float(value)
+                elif key == 'sexual':
+                    moderation['sexual_content'] = float(value)
+                elif key == 'hate_speech':
+                    moderation['hate_speech'] = float(value)
+                elif key == 'harassment':
+                    moderation['harassment'] = float(value)
+                elif key == 'is_safe':
+                    moderation['is_safe'] = value.upper() == 'YES'
+
+            return moderation
+
+        except Exception as e:
+            logger.error(f"Moderation failed: {e}")
+            return {
+                'violence': 0.0,
+                'sexual_content': 0.0,
+                'hate_speech': 0.0,
+                'harassment': 0.0,
+                'is_safe': True
+            }
+
+    def score_quality(self, title: str, content: str) -> float:
+        """
+        Score content quality (0.0-1.0).
+
+        Args:
+            title: Post title
+            content: Post content/description
+
+        Returns:
+            Quality score (0.0-1.0)
+        """
+        prompt = f"""Rate this content's quality on a scale of 0.0 to 1.0.
+
+Consider:
+- Clarity and informativeness
+- Proper grammar and formatting
+- Lack of clickbait or sensationalism
+- Factual tone
+
+Title: {title}
+Content: {content[:500]}
+
+Respond with ONLY a number between 0.0 and 1.0 (e.g., 0.7)"""
+
+        try:
+            response = self.call_model(prompt, max_tokens=10, temperature=0.3)
+
+            # Extract number
+            score = float(response.strip())
+            score = max(0.0, min(1.0, score))  # Clamp to 0-1
+
+            return score
+
+        except Exception as e:
+            logger.error(f"Quality scoring failed: {e}")
+            return 0.5  # Default neutral score
+
+    def analyze_sentiment(self, title: str, content: str) -> Dict[str, Any]:
+        """
+        Analyze sentiment of content.
+
+        Args:
+            title: Post title
+            content: Post content/description
+
+        Returns:
+            Dict with 'sentiment' (positive/neutral/negative) and 'score'
+        """
+        prompt = f"""Analyze the sentiment of this content.
+
+Title: {title}
+Content: {content[:500]}
+
+Respond in this EXACT format:
+SENTIMENT: [positive/neutral/negative]
+SCORE: [-1.0 to 1.0]"""
+
+        try:
+            response = self.call_model(prompt, max_tokens=20, temperature=0.3)
+
+            # Parse response
+            sentiment = 'neutral'
+            score = 0.0
+
+            lines = response.strip().split('\n')
+            for line in lines:
+                if ':' not in line:
+                    continue
+
+                key, value = line.split(':', 1)
+                key = key.strip().lower()
+                value = value.strip()
+
+                if key == 'sentiment':
+                    sentiment = value.lower()
+                elif key == 'score':
+                    try:
+                        score = float(value)
+                        score = max(-1.0, min(1.0, score))
+                    except:
+                        score = 0.0
+
+            return {
+                'sentiment': sentiment,
+                'score': score
+            }
+
+        except Exception as e:
+            logger.error(f"Sentiment analysis failed: {e}")
+            return {
+                'sentiment': 'neutral',
+                'score': 0.0
+            }

filter_pipeline/cache.py

@@ -0,0 +1,259 @@
+"""
+Multi-Level Caching System
+Implements 3-tier caching for filter pipeline efficiency.
+"""
+
+import json
+import hashlib
+import os
+import logging
+from pathlib import Path
+from typing import Optional, Dict, Any
+from datetime import datetime, timedelta
+from .models import AIAnalysisResult, FilterResult
+
+logger = logging.getLogger(__name__)
+
+
+class FilterCache:
+    """
+    Three-level caching system:
+    Level 1: In-memory cache (fastest, TTL-based)
+    Level 2: AI analysis cache (persistent, content-hash based)
+    Level 3: Filterset result cache (persistent, filterset version based)
+    """
+
+    def __init__(self, cache_dir: str = 'data/filter_cache'):
+        self.cache_dir = Path(cache_dir)
+        self.cache_dir.mkdir(parents=True, exist_ok=True)
+
+        # Level 1: In-memory cache
+        self.memory_cache: Dict[str, tuple[Any, datetime]] = {}
+        self.memory_ttl = timedelta(minutes=5)
+
+        # Level 2: AI analysis cache directory
+        self.ai_cache_dir = self.cache_dir / 'ai_analysis'
+        self.ai_cache_dir.mkdir(exist_ok=True)
+
+        # Level 3: Filterset result cache directory
+        self.filterset_cache_dir = self.cache_dir / 'filtersets'
+        self.filterset_cache_dir.mkdir(exist_ok=True)
+
+    # ===== Level 1: Memory Cache =====
+
+    def get_memory(self, key: str) -> Optional[Any]:
+        """Get from memory cache if not expired"""
+        if key in self.memory_cache:
+            value, timestamp = self.memory_cache[key]
+            if datetime.now() - timestamp < self.memory_ttl:
+                return value
+            else:
+                # Expired, remove
+                del self.memory_cache[key]
+        return None
+
+    def set_memory(self, key: str, value: Any):
+        """Store in memory cache"""
+        self.memory_cache[key] = (value, datetime.now())
+
+    def clear_memory(self):
+        """Clear all memory cache"""
+        self.memory_cache.clear()
+
+    # ===== Level 2: AI Analysis Cache (Persistent) =====
+
+    @staticmethod
+    def compute_content_hash(title: str, content: str) -> str:
+        """Compute SHA-256 hash of content for caching"""
+        text = f"{title}\n{content}".encode('utf-8')
+        return hashlib.sha256(text).hexdigest()
+
+    def get_ai_analysis(self, content_hash: str) -> Optional[AIAnalysisResult]:
+        """
+        Get AI analysis result from cache.
+
+        Args:
+            content_hash: SHA-256 hash of content
+
+        Returns:
+            AIAnalysisResult if cached, None otherwise
+        """
+        # Check memory first
+        mem_key = f"ai_{content_hash}"
+        cached = self.get_memory(mem_key)
+        if cached:
+            return cached
+
+        # Check disk
+        cache_file = self.ai_cache_dir / f"{content_hash}.json"
+        if cache_file.exists():
+            try:
+                with open(cache_file, 'r') as f:
+                    data = json.load(f)
+                result = AIAnalysisResult.from_dict(data)
+
+                # Store in memory for faster access
+                self.set_memory(mem_key, result)
+
+                logger.debug(f"AI analysis cache hit for {content_hash[:8]}...")
+                return result
+            except Exception as e:
+                logger.error(f"Error loading AI cache {content_hash}: {e}")
+                return None
+
+        return None
+
+    def set_ai_analysis(self, content_hash: str, result: AIAnalysisResult):
+        """
+        Store AI analysis result in cache (persistent).
+
+        Args:
+            content_hash: SHA-256 hash of content
+            result: AIAnalysisResult to cache
+        """
+        # Store in memory
+        mem_key = f"ai_{content_hash}"
+        self.set_memory(mem_key, result)
+
+        # Store on disk (persistent)
+        cache_file = self.ai_cache_dir / f"{content_hash}.json"
+        try:
+            with open(cache_file, 'w') as f:
+                json.dump(result.to_dict(), f, indent=2)
+            logger.debug(f"Cached AI analysis for {content_hash[:8]}...")
+        except Exception as e:
+            logger.error(f"Error saving AI cache {content_hash}: {e}")
+
+    # ===== Level 3: Filterset Result Cache =====
+
+    def _get_filterset_version(self, filterset_name: str, filtersets_config: Dict) -> str:
+        """Get version hash of filterset definition for cache invalidation"""
+        filterset_def = filtersets_config.get(filterset_name, {})
+        # Include version field if present, otherwise hash the entire definition
+        if 'version' in filterset_def:
+            return str(filterset_def['version'])
+
+        # Compute hash of filterset definition
+        definition_json = json.dumps(filterset_def, sort_keys=True)
+        return hashlib.md5(definition_json.encode()).hexdigest()[:8]
+
+    def get_filterset_results(
+        self,
+        filterset_name: str,
+        filterset_version: str,
+        max_age_hours: int = 24
+    ) -> Optional[Dict[str, FilterResult]]:
+        """
+        Get cached filterset results.
+
+        Args:
+            filterset_name: Name of filterset
+            filterset_version: Version hash of filterset definition
+            max_age_hours: Maximum age of cache in hours
+
+        Returns:
+            Dict mapping post_uuid to FilterResult, or None if cache invalid
+        """
+        cache_file = self.filterset_cache_dir / f"{filterset_name}_{filterset_version}.json"
+
+        if not cache_file.exists():
+            return None
+
+        # Check age
+        try:
+            file_age = datetime.now() - datetime.fromtimestamp(cache_file.stat().st_mtime)
+            if file_age > timedelta(hours=max_age_hours):
+                logger.debug(f"Filterset cache expired for {filterset_name}")
+                return None
+
+            # Load cache
+            with open(cache_file, 'r') as f:
+                data = json.load(f)
+
+            # Deserialize FilterResults
+            results = {
+                uuid: FilterResult.from_dict(result_data)
+                for uuid, result_data in data.items()
+            }
+
+            logger.info(f"Filterset cache hit for {filterset_name} ({len(results)} results)")
+            return results
+
+        except Exception as e:
+            logger.error(f"Error loading filterset cache {filterset_name}: {e}")
+            return None
+
+    def set_filterset_results(
+        self,
+        filterset_name: str,
+        filterset_version: str,
+        results: Dict[str, FilterResult]
+    ):
+        """
+        Store filterset results in cache.
+
+        Args:
+            filterset_name: Name of filterset
+            filterset_version: Version hash of filterset definition
+            results: Dict mapping post_uuid to FilterResult
+        """
+        cache_file = self.filterset_cache_dir / f"{filterset_name}_{filterset_version}.json"
+
+        try:
+            # Serialize FilterResults
+            data = {
+                uuid: result.to_dict()
+                for uuid, result in results.items()
+            }
+
+            with open(cache_file, 'w') as f:
+                json.dump(data, f, indent=2)
+
+            logger.info(f"Cached {len(results)} filterset results for {filterset_name}")
+        except Exception as e:
+            logger.error(f"Error saving filterset cache {filterset_name}: {e}")
+
+    def invalidate_filterset(self, filterset_name: str):
+        """
+        Invalidate all caches for a filterset (when definition changes).
+
+        Args:
+            filterset_name: Name of filterset to invalidate
+        """
+        pattern = f"{filterset_name}_*.json"
+        for cache_file in self.filterset_cache_dir.glob(pattern):
+            try:
+                cache_file.unlink()
+                logger.info(f"Invalidated filterset cache: {cache_file.name}")
+            except Exception as e:
+                logger.error(f"Error invalidating cache {cache_file}: {e}")
+
+    # ===== Utility Methods =====
+
+    def get_cache_stats(self) -> Dict[str, Any]:
+        """Get cache statistics"""
+        ai_cache_count = len(list(self.ai_cache_dir.glob('*.json')))
+        filterset_cache_count = len(list(self.filterset_cache_dir.glob('*.json')))
+        memory_cache_count = len(self.memory_cache)
+
+        return {
+            'memory_cache_size': memory_cache_count,
+            'ai_cache_size': ai_cache_count,
+            'filterset_cache_size': filterset_cache_count,
+            'ai_cache_dir': str(self.ai_cache_dir),
+            'filterset_cache_dir': str(self.filterset_cache_dir)
+        }
+
+    def clear_all(self):
+        """Clear all caches (use with caution!)"""
+        self.clear_memory()
+
+        # Clear AI cache
+        for cache_file in self.ai_cache_dir.glob('*.json'):
+            cache_file.unlink()
+
+        # Clear filterset cache
+        for cache_file in self.filterset_cache_dir.glob('*.json'):
+            cache_file.unlink()
+
+        logger.warning("All filter caches cleared")

filter_pipeline/config.py

@@ -0,0 +1,206 @@
+"""
+Configuration Loader
+Loads and validates filter pipeline configuration.
+"""
+
+import json
+import os
+import logging
+from pathlib import Path
+from typing import Dict, List, Any, Optional
+
+logger = logging.getLogger(__name__)
+
+
+class FilterConfig:
+    """Configuration for filter pipeline"""
+
+    def __init__(
+        self,
+        config_file: str = 'filter_config.json',
+        filtersets_file: str = 'filtersets.json'
+    ):
+        self.config_file = Path(config_file)
+        self.filtersets_file = Path(filtersets_file)
+
+        # Load configurations
+        self.config = self._load_config()
+        self.filtersets = self._load_filtersets()
+
+    def _load_config(self) -> Dict:
+        """Load filter_config.json"""
+        if not self.config_file.exists():
+            logger.warning(f"{self.config_file} not found, using defaults")
+            return self._get_default_config()
+
+        try:
+            with open(self.config_file, 'r') as f:
+                config = json.load(f)
+            logger.info(f"Loaded filter config from {self.config_file}")
+            return config
+        except Exception as e:
+            logger.error(f"Error loading {self.config_file}: {e}")
+            return self._get_default_config()
+
+    def _load_filtersets(self) -> Dict:
+        """Load filtersets.json"""
+        if not self.filtersets_file.exists():
+            logger.error(f"{self.filtersets_file} not found!")
+            return {}
+
+        try:
+            with open(self.filtersets_file, 'r') as f:
+                filtersets = json.load(f)
+            logger.info(f"Loaded {len(filtersets)} filtersets from {self.filtersets_file}")
+            return filtersets
+        except Exception as e:
+            logger.error(f"Error loading {self.filtersets_file}: {e}")
+            return {}
+
+    @staticmethod
+    def _get_default_config() -> Dict:
+        """Get default configuration"""
+        return {
+            'ai': {
+                'enabled': False,  # Disabled by default until API key is configured
+                'openrouter_key_file': 'openrouter_key.txt',
+                'models': {
+                    'cheap': 'meta-llama/llama-3.3-70b-instruct',
+                    'smart': 'anthropic/claude-3.5-sonnet'
+                },
+                'parallel_workers': 10,
+                'timeout_seconds': 60
+            },
+            'cache': {
+                'enabled': True,
+                'ai_cache_dir': 'data/filter_cache',
+                'filterset_cache_ttl_hours': 24
+            },
+            'pipeline': {
+                'default_stages': ['categorizer', 'moderator', 'filter', 'ranker'],
+                'batch_size': 50,
+                'enable_parallel': True
+            },
+            'output': {
+                'filtered_dir': 'data/filtered',
+                'save_rejected': False  # Don't save posts that fail filters
+            }
+        }
+
+    # ===== AI Configuration =====
+
+    def is_ai_enabled(self) -> bool:
+        """Check if AI processing is enabled"""
+        return self.config.get('ai', {}).get('enabled', False)
+
+    def get_openrouter_key(self) -> Optional[str]:
+        """Get OpenRouter API key"""
+        # Try environment variable first
+        key = os.getenv('OPENROUTER_API_KEY')
+        if key:
+            return key
+
+        # Try key file
+        key_file = self.config.get('ai', {}).get('openrouter_key_file')
+        if key_file and Path(key_file).exists():
+            try:
+                with open(key_file, 'r') as f:
+                    return f.read().strip()
+            except Exception as e:
+                logger.error(f"Error reading API key from {key_file}: {e}")
+
+        return None
+
+    def get_ai_model(self, model_type: str = 'cheap') -> str:
+        """Get AI model name for a given type (cheap/smart)"""
+        models = self.config.get('ai', {}).get('models', {})
+        return models.get(model_type, 'meta-llama/llama-3.3-70b-instruct')
+
+    def get_parallel_workers(self) -> int:
+        """Get number of parallel workers for AI processing"""
+        return self.config.get('ai', {}).get('parallel_workers', 10)
+
+    # ===== Cache Configuration =====
+
+    def is_cache_enabled(self) -> bool:
+        """Check if caching is enabled"""
+        return self.config.get('cache', {}).get('enabled', True)
+
+    def get_cache_dir(self) -> str:
+        """Get cache directory path"""
+        return self.config.get('cache', {}).get('ai_cache_dir', 'data/filter_cache')
+
+    def get_cache_ttl_hours(self) -> int:
+        """Get filterset cache TTL in hours"""
+        return self.config.get('cache', {}).get('filterset_cache_ttl_hours', 24)
+
+    # ===== Pipeline Configuration =====
+
+    def get_default_stages(self) -> List[str]:
+        """Get default pipeline stages"""
+        return self.config.get('pipeline', {}).get('default_stages', [
+            'categorizer', 'moderator', 'filter', 'ranker'
+        ])
+
+    def get_batch_size(self) -> int:
+        """Get batch processing size"""
+        return self.config.get('pipeline', {}).get('batch_size', 50)
+
+    def is_parallel_enabled(self) -> bool:
+        """Check if parallel processing is enabled"""
+        return self.config.get('pipeline', {}).get('enable_parallel', True)
+
+    # ===== Filterset Methods =====
+
+    def get_filterset(self, name: str) -> Optional[Dict]:
+        """Get filterset configuration by name"""
+        return self.filtersets.get(name)
+
+    def get_filterset_names(self) -> List[str]:
+        """Get list of available filterset names"""
+        return list(self.filtersets.keys())
+
+    def get_filterset_version(self, name: str) -> Optional[str]:
+        """Get version of filterset (for cache invalidation)"""
+        filterset = self.get_filterset(name)
+        if not filterset:
+            return None
+
+        # Use explicit version if present
+        if 'version' in filterset:
+            return str(filterset['version'])
+
+        # Otherwise compute hash of definition
+        import hashlib
+        definition_json = json.dumps(filterset, sort_keys=True)
+        return hashlib.md5(definition_json.encode()).hexdigest()[:8]
+
+    # ===== Output Configuration =====
+
+    def get_filtered_dir(self) -> str:
+        """Get directory for filtered posts"""
+        return self.config.get('output', {}).get('filtered_dir', 'data/filtered')
+
+    def should_save_rejected(self) -> bool:
+        """Check if rejected posts should be saved"""
+        return self.config.get('output', {}).get('save_rejected', False)
+
+    # ===== Utility Methods =====
+
+    def reload(self):
+        """Reload configurations from disk"""
+        self.config = self._load_config()
+        self.filtersets = self._load_filtersets()
+        logger.info("Configuration reloaded")
+
+    def get_config_summary(self) -> Dict[str, Any]:
+        """Get summary of configuration"""
+        return {
+            'ai_enabled': self.is_ai_enabled(),
+            'cache_enabled': self.is_cache_enabled(),
+            'parallel_enabled': self.is_parallel_enabled(),
+            'num_filtersets': len(self.filtersets),
+            'filterset_names': self.get_filterset_names(),
+            'default_stages': self.get_default_stages(),
+            'batch_size': self.get_batch_size()
+        }

filter_pipeline/engine.py

@@ -0,0 +1,453 @@
+"""
+Filter Engine
+Main orchestrator for content filtering pipeline.
+"""
+
+import logging
+import traceback
+from typing import List, Dict, Any, Optional
+from datetime import datetime
+from pathlib import Path
+from concurrent.futures import ThreadPoolExecutor, as_completed
+
+from .config import FilterConfig
+from .cache import FilterCache
+from .models import FilterResult, ProcessingStatus, AIAnalysisResult
+from .registry import discover_modules, get_registered_stages
+
+logger = logging.getLogger(__name__)
+
+
+class FilterEngine:
+    """
+    Main filter pipeline orchestrator.
+
+    Coordinates multi-stage content filtering with intelligent caching.
+    Compatible with user preferences and filterset selections.
+    """
+
+    _instance = None
+
+    def __init__(
+        self,
+        config_file: str = 'filter_config.json',
+        filtersets_file: str = 'filtersets.json'
+    ):
+        """
+        Initialize filter engine.
+
+        Args:
+            config_file: Path to filter_config.json
+            filtersets_file: Path to filtersets.json
+        """
+        self.config = FilterConfig(config_file, filtersets_file)
+        self.cache = FilterCache(self.config.get_cache_dir())
+
+        # Lazy-loaded stages (will be imported when AI is enabled)
+        self._stages = None
+
+        logger.info("FilterEngine initialized")
+        logger.info(f"Configuration: {self.config.get_config_summary()}")
+
+    @classmethod
+    def get_instance(cls) -> 'FilterEngine':
+        """Get singleton instance of FilterEngine"""
+        if cls._instance is None:
+            cls._instance = cls()
+        return cls._instance
+
+    def _init_stages(self):
+        """Initialize pipeline stages from the registry (lazy loading)."""
+        if self._stages is not None:
+            return
+
+        # Import built-ins and any configured extension modules for decorator
+        # side effects. This keeps engine orchestration independent of concrete
+        # stage classes and gives plugins a zero-core-edit registration path.
+        discover_modules([
+            'filter_pipeline.stages.categorizer',
+            'filter_pipeline.stages.moderator',
+            'filter_pipeline.stages.filter',
+            'filter_pipeline.stages.ranker',
+            'filter_pipeline.stages.plugins',
+            'filter_pipeline.stages.comment_filter',
+            'filter_pipeline.plugins.keyword',
+            'filter_pipeline.plugins.quality',
+            *self.config.config.get('pipeline', {}).get('stage_modules', []),
+            *self.config.config.get('plugins', {}).get('modules', []),
+        ])
+
+        self._stages = {
+            name: stage_cls(self.config, self.cache)
+            for name, stage_cls in get_registered_stages().items()
+        }
+
+        logger.info(
+            "Initialized %s registered pipeline stages: %s",
+            len(self._stages),
+            ', '.join(sorted(self._stages.keys()))
+        )
+
+    def apply_filterset(
+        self,
+        posts: List[Dict[str, Any]],
+        filterset_name: str = 'no_filter',
+        use_cache: bool = True
+    ) -> List[Dict[str, Any]]:
+        """
+        Apply filterset to posts (compatible with user preferences).
+
+        This is the main public API used by app.py when loading user feeds.
+
+        Args:
+            posts: List of post dictionaries
+            filterset_name: Name of filterset from user settings (e.g., 'safe_content')
+            use_cache: Whether to use cached results
+
+        Returns:
+            List of posts that passed the filter, with score and metadata added
+        """
+        if not posts:
+            return []
+
+        # Validate filterset exists
+        filterset = self.config.get_filterset(filterset_name)
+        if not filterset:
+            logger.warning(f"Filterset '{filterset_name}' not found, using 'no_filter'")
+            filterset_name = 'no_filter'
+
+        logger.info(f"Applying filterset '{filterset_name}' to {len(posts)} posts")
+
+        # Check if we have cached filterset results
+        if use_cache and self.config.is_cache_enabled():
+            filterset_version = self.config.get_filterset_version(filterset_name)
+            cached_results = self.cache.get_filterset_results(
+                filterset_name,
+                filterset_version,
+                self.config.get_cache_ttl_hours()
+            )
+
+            if cached_results:
+                # Filter posts using cached results
+                filtered_posts = []
+                for post in posts:
+                    post_uuid = post.get('uuid')
+                    if post_uuid in cached_results:
+                        result = cached_results[post_uuid]
+                        if result.passed:
+                            # Add filter metadata to post
+                            post['_filter_score'] = result.score
+                            post['_filter_categories'] = result.categories
+                            post['_filter_tags'] = result.tags
+                            filtered_posts.append(post)
+
+                logger.info(f"Cache hit: {len(filtered_posts)}/{len(posts)} posts passed filter")
+                return filtered_posts
+
+        # Cache miss or disabled - process posts through pipeline
+        results = self.process_batch(posts, filterset_name)
+
+        # Save to filterset cache
+        if self.config.is_cache_enabled():
+            filterset_version = self.config.get_filterset_version(filterset_name)
+            results_dict = {r.post_uuid: r for r in results}
+            self.cache.set_filterset_results(filterset_name, filterset_version, results_dict)
+
+        # Build filtered post list
+        filtered_posts = []
+        results_by_uuid = {r.post_uuid: r for r in results}
+
+        for post in posts:
+            post_uuid = post.get('uuid')
+            result = results_by_uuid.get(post_uuid)
+
+            if result and result.passed:
+                # Add filter metadata to post
+                post['_filter_score'] = result.score
+                post['_filter_categories'] = result.categories
+                post['_filter_tags'] = result.tags
+                filtered_posts.append(post)
+
+        logger.info(f"Processed: {len(filtered_posts)}/{len(posts)} posts passed filter")
+        return filtered_posts
+
+    def process_batch(
+        self,
+        posts: List[Dict[str, Any]],
+        filterset_name: str = 'no_filter'
+    ) -> List[FilterResult]:
+        """
+        Process batch of posts through pipeline.
+
+        Args:
+            posts: List of post dictionaries
+            filterset_name: Name of filterset to apply
+
+        Returns:
+            List of FilterResults for each post
+        """
+        if not posts:
+            return []
+
+        # Special case: no_filter passes everything with default scores
+        if filterset_name == 'no_filter':
+            return self._process_no_filter(posts)
+
+        # Initialize stages (registry-driven). This must happen regardless of
+        # whether AI is enabled: offline filtersets (rules/plugins/ranker) still
+        # need their stages instantiated to run.
+        self._init_stages()
+
+        # Get pipeline stages for this filterset
+        stage_names = self._get_stages_for_filterset(filterset_name)
+
+        # If AI is disabled but the filterset's stages require AI, do NOT silently
+        # pass everything as no_filter. Pass the posts through (so the feed is not
+        # blanked) but mark every result as FAILED with an explicit error so the
+        # degradation is observable, not silent. Filtersets whose stages are all
+        # offline (filter/plugins/ranker/comment_filter) still run normally.
+        if not self.config.is_ai_enabled() and self._stages_need_ai(stage_names):
+            logger.warning(
+                f"AI disabled but filterset '{filterset_name}' requires AI stages "
+                f"({stage_names}) - passing posts through unfiltered with FAILED status"
+            )
+            return self._process_ai_disabled(filterset_name, posts)
+
+        # Process posts (parallel or sequential based on config)
+        if self.config.is_parallel_enabled():
+            results = self._process_batch_parallel(posts, filterset_name, stage_names)
+        else:
+            results = self._process_batch_sequential(posts, filterset_name, stage_names)
+
+        return results
+
+    def _stages_need_ai(self, stage_names: List[str]) -> bool:
+        """Return True if any named stage class declares ``requires_ai``."""
+        from .registry import get_stage_class
+
+        for name in stage_names:
+            stage_cls = get_stage_class(name)
+            if stage_cls is not None and getattr(stage_cls, 'requires_ai', False):
+                return True
+        return False
+
+    def _process_no_filter(self, posts: List[Dict[str, Any]]) -> List[FilterResult]:
+        """Process posts with no_filter (all pass with default scores)"""
+        results = []
+        for post in posts:
+            result = FilterResult(
+                post_uuid=post.get('uuid', ''),
+                passed=True,
+                score=0.5,  # Neutral score
+                categories=[],
+                tags=[],
+                filterset_name='no_filter',
+                processed_at=datetime.now(),
+                status=ProcessingStatus.COMPLETED
+            )
+            results.append(result)
+
+        return results
+
+    def _process_ai_disabled(self, filterset_name: str, posts: List[Dict[str, Any]]) -> List[FilterResult]:
+        """Pass posts through unfiltered when the requested filterset needs AI
+        but AI is disabled. Unlike no_filter, every result is marked FAILED with
+        an explicit error so the degradation is observable rather than silent.
+        """
+        results = []
+        for post in posts:
+            result = FilterResult(
+                post_uuid=post.get('uuid', ''),
+                passed=True,  # do not blank the feed
+                score=0.5,  # neutral score
+                categories=[],
+                tags=[],
+                filterset_name=filterset_name,
+                processed_at=datetime.now(),
+                status=ProcessingStatus.FAILED,
+                error=f"AI disabled: filterset '{filterset_name}' requires AI; passed through unfiltered"
+            )
+            results.append(result)
+
+        return results
+
+    def _get_stages_for_filterset(self, filterset_name: str) -> List[str]:
+        """Get pipeline stages to run for a filterset"""
+        filterset = self.config.get_filterset(filterset_name)
+
+        # Check if filterset specifies custom stages
+        if filterset and 'pipeline_stages' in filterset:
+            return filterset['pipeline_stages']
+
+        # Use default stages
+        return self.config.get_default_stages()
+
+    def _process_batch_parallel(
+        self,
+        posts: List[Dict[str, Any]],
+        filterset_name: str,
+        stage_names: List[str]
+    ) -> List[FilterResult]:
+        """Process posts in parallel"""
+        results = [None] * len(posts)
+        workers = self.config.get_parallel_workers()
+
+        def process_single_post(idx_post):
+            idx, post = idx_post
+            try:
+                result = self._process_single_post(post, filterset_name, stage_names)
+                return idx, result
+            except Exception as e:
+                logger.error(f"Error processing post {idx}: {e}")
+                logger.error(traceback.format_exc())
+                # Return failed result
+                return idx, FilterResult(
+                    post_uuid=post.get('uuid', ''),
+                    passed=False,
+                    score=0.0,
+                    filterset_name=filterset_name,
+                    processed_at=datetime.now(),
+                    status=ProcessingStatus.FAILED,
+                    error=str(e)
+                )
+
+        with ThreadPoolExecutor(max_workers=workers) as executor:
+            futures = {executor.submit(process_single_post, (i, post)): i
+                      for i, post in enumerate(posts)}
+
+            for future in as_completed(futures):
+                idx, result = future.result()
+                results[idx] = result
+
+        return results
+
+    def _process_batch_sequential(
+        self,
+        posts: List[Dict[str, Any]],
+        filterset_name: str,
+        stage_names: List[str]
+    ) -> List[FilterResult]:
+        """Process posts sequentially"""
+        results = []
+        for post in posts:
+            try:
+                result = self._process_single_post(post, filterset_name, stage_names)
+                results.append(result)
+            except Exception as e:
+                logger.error(f"Error processing post: {e}")
+                results.append(FilterResult(
+                    post_uuid=post.get('uuid', ''),
+                    passed=False,
+                    score=0.0,
+                    filterset_name=filterset_name,
+                    processed_at=datetime.now(),
+                    status=ProcessingStatus.FAILED,
+                    error=str(e)
+                ))
+
+        return results
+
+    def _process_single_post(
+        self,
+        post: Dict[str, Any],
+        filterset_name: str,
+        stage_names: List[str]
+    ) -> FilterResult:
+        """
+        Process single post through pipeline stages.
+
+        Stages are run sequentially: Categorizer → Moderator → Filter → Ranker
+        """
+        # Initialize result
+        result = FilterResult(
+            post_uuid=post.get('uuid', ''),
+            passed=True,  # Start as passed, stages can reject
+            score=0.5,  # Default score
+            filterset_name=filterset_name,
+            processed_at=datetime.now(),
+            status=ProcessingStatus.PROCESSING
+        )
+
+        # Run each stage
+        for stage_name in stage_names:
+            if stage_name not in self._stages:
+                logger.warning(f"Stage '{stage_name}' not found, skipping")
+                continue
+
+            stage = self._stages[stage_name]
+
+            if not stage.is_enabled():
+                logger.debug(f"Stage '{stage_name}' disabled, skipping")
+                continue
+
+            # Process through stage
+            try:
+                result = stage.process(post, result)
+
+                # If post was rejected by this stage, stop processing
+                if not result.passed:
+                    logger.debug(f"Post {post.get('uuid', '')} rejected by {stage_name}")
+                    break
+
+            except Exception as e:
+                logger.error(f"Error in stage '{stage_name}': {e}")
+                result.status = ProcessingStatus.FAILED
+                result.error = f"{stage_name}: {str(e)}"
+                result.passed = False
+                break
+
+        # Mark as completed if not failed
+        if result.status != ProcessingStatus.FAILED:
+            result.status = ProcessingStatus.COMPLETED
+
+        return result
+
+    # ===== Utility Methods =====
+
+    def get_available_filtersets(self) -> List[str]:
+        """Get list of available filterset names (for user settings UI)"""
+        return self.config.get_filterset_names()
+
+    def get_filterset_description(self, name: str) -> Optional[str]:
+        """Get description of a filterset (for user settings UI)"""
+        filterset = self.config.get_filterset(name)
+        return filterset.get('description') if filterset else None
+
+    def invalidate_filterset_cache(self, filterset_name: str):
+        """Invalidate cache for a filterset (when definition changes)"""
+        self.cache.invalidate_filterset(filterset_name)
+        logger.info(f"Invalidated cache for filterset '{filterset_name}'")
+
+    def get_cache_stats(self) -> Dict[str, Any]:
+        """Get cache statistics"""
+        return self.cache.get_cache_stats()
+
+    def reload_config(self):
+        """Reload configuration from disk"""
+        self.config.reload()
+        self._stages = None  # Force re-initialization of stages
+        logger.info("Configuration reloaded")
+
+    def filter_comments(
+        self,
+        comments: List[Dict[str, Any]],
+        filterset_name: str = 'no_filter'
+    ) -> List[Dict[str, Any]]:
+        """Filter a post's flat comment list according to a filterset.
+
+        Comment filtering is tree-shaped (per post) and lives in the registered
+        ``comment_filter`` stage rather than the per-post stage pipeline. The
+        caller (API endpoint) builds the tree from the returned flat list via
+        ``PostService.build_comment_tree``.
+
+        Fails open: if the ``comment_filter`` stage is not registered, the
+        comments are returned unchanged so a missing stage never blanks them.
+        """
+        if not comments:
+            return []
+        self._init_stages()
+        comment_stage = self._stages.get('comment_filter')
+        if not comment_stage:
+            logger.warning("comment_filter stage not registered; returning comments unfiltered")
+            return comments
+        return comment_stage.filter_comments(comments, filterset_name)

filter_pipeline/models.py

@@ -0,0 +1,121 @@
+"""
+Filter Pipeline Models
+Data models for filter results and processing status.
+"""
+
+from dataclasses import dataclass, field
+from typing import Dict, List, Optional, Any
+from datetime import datetime
+from enum import Enum
+
+
+class ProcessingStatus(Enum):
+    """Status of content processing"""
+    PENDING = 'pending'
+    PROCESSING = 'processing'
+    COMPLETED = 'completed'
+    FAILED = 'failed'
+    CACHED = 'cached'
+
+
+@dataclass
+class FilterResult:
+    """
+    Result of filtering pipeline for a single post.
+
+    Attributes:
+        post_uuid: Unique identifier for the post
+        passed: Whether post passed the filter
+        score: Relevance/quality score (0.0-1.0)
+        categories: Detected categories/topics
+        tags: Additional tags applied
+        moderation_data: Safety and quality analysis results
+        filterset_name: Name of filterset applied
+        cache_key: Content hash for caching
+        processed_at: Timestamp of processing
+        status: Processing status
+        error: Error message if failed
+    """
+    post_uuid: str
+    passed: bool
+    score: float
+    categories: List[str] = field(default_factory=list)
+    tags: List[str] = field(default_factory=list)
+    moderation_data: Dict[str, Any] = field(default_factory=dict)
+    filterset_name: str = 'no_filter'
+    cache_key: Optional[str] = None
+    processed_at: Optional[datetime] = None
+    status: ProcessingStatus = ProcessingStatus.PENDING
+    error: Optional[str] = None
+
+    # Detailed scoring breakdown
+    score_breakdown: Dict[str, float] = field(default_factory=dict)
+
+    def to_dict(self) -> Dict:
+        """Convert to dictionary for JSON serialization"""
+        return {
+            'post_uuid': self.post_uuid,
+            'passed': self.passed,
+            'score': self.score,
+            'categories': self.categories,
+            'tags': self.tags,
+            'moderation_data': self.moderation_data,
+            'filterset_name': self.filterset_name,
+            'cache_key': self.cache_key,
+            'processed_at': self.processed_at.isoformat() if self.processed_at else None,
+            'status': self.status.value if isinstance(self.status, ProcessingStatus) else self.status,
+            'error': self.error,
+            'score_breakdown': self.score_breakdown
+        }
+
+    @classmethod
+    def from_dict(cls, data: Dict) -> 'FilterResult':
+        """Create from dictionary"""
+        # Handle datetime deserialization
+        if data.get('processed_at') and isinstance(data['processed_at'], str):
+            data['processed_at'] = datetime.fromisoformat(data['processed_at'])
+
+        # Handle enum deserialization
+        if data.get('status') and isinstance(data['status'], str):
+            data['status'] = ProcessingStatus(data['status'])
+
+        return cls(**{k: v for k, v in data.items() if k in cls.__dataclass_fields__})
+
+
+@dataclass
+class AIAnalysisResult:
+    """
+    Result of AI analysis (categorization, moderation, etc).
+    Cached separately from FilterResult for reuse across filtersets.
+    """
+    content_hash: str
+    categories: List[str] = field(default_factory=list)
+    category_scores: Dict[str, float] = field(default_factory=dict)
+    moderation: Dict[str, Any] = field(default_factory=dict)
+    quality_score: float = 0.5
+    sentiment: Optional[str] = None
+    sentiment_score: float = 0.0
+    analyzed_at: Optional[datetime] = None
+    model_used: Optional[str] = None
+
+    def to_dict(self) -> Dict:
+        """Convert to dictionary for JSON serialization"""
+        return {
+            'content_hash': self.content_hash,
+            'categories': self.categories,
+            'category_scores': self.category_scores,
+            'moderation': self.moderation,
+            'quality_score': self.quality_score,
+            'sentiment': self.sentiment,
+            'sentiment_score': self.sentiment_score,
+            'analyzed_at': self.analyzed_at.isoformat() if self.analyzed_at else None,
+            'model_used': self.model_used
+        }
+
+    @classmethod
+    def from_dict(cls, data: Dict) -> 'AIAnalysisResult':
+        """Create from dictionary"""
+        if data.get('analyzed_at') and isinstance(data['analyzed_at'], str):
+            data['analyzed_at'] = datetime.fromisoformat(data['analyzed_at'])
+
+        return cls(**{k: v for k, v in data.items() if k in cls.__dataclass_fields__})

filter_pipeline/plugins/__init__.py

@@ -0,0 +1,10 @@
+"""
+Filter Plugins
+Pluggable filters for content filtering.
+"""
+
+from .base import BaseFilterPlugin
+from .keyword import KeywordFilterPlugin
+from .quality import QualityFilterPlugin
+
+__all__ = ['BaseFilterPlugin', 'KeywordFilterPlugin', 'QualityFilterPlugin']

filter_pipeline/plugins/base.py

@@ -0,0 +1,66 @@
+"""
+Base Filter Plugin
+Abstract base class for all filter plugins.
+"""
+
+from abc import ABC, abstractmethod
+from typing import Dict, Any, Optional
+
+
+class BaseFilterPlugin(ABC):
+    """
+    Abstract base class for filter plugins.
+
+    Plugins can be used within stages to implement specific filtering logic.
+    Examples: keyword filtering, AI-based filtering, quality scoring, etc.
+    """
+
+    def __init__(self, config: Dict[str, Any]):
+        """
+        Initialize plugin.
+
+        Args:
+            config: Plugin configuration dictionary
+        """
+        self.config = config
+        self.enabled = config.get('enabled', True)
+
+    @abstractmethod
+    def should_filter(self, post: Dict[str, Any], context: Optional[Dict] = None) -> bool:
+        """
+        Determine if post should be filtered OUT.
+
+        Args:
+            post: Post data dictionary
+            context: Optional context from previous stages
+
+        Returns:
+            True if post should be filtered OUT (rejected), False to keep it
+        """
+        pass
+
+    @abstractmethod
+    def score(self, post: Dict[str, Any], context: Optional[Dict] = None) -> float:
+        """
+        Calculate relevance/quality score for post.
+
+        Args:
+            post: Post data dictionary
+            context: Optional context from previous stages
+
+        Returns:
+            Score from 0.0 (lowest) to 1.0 (highest)
+        """
+        pass
+
+    @abstractmethod
+    def get_name(self) -> str:
+        """Get plugin name for logging"""
+        pass
+
+    def is_enabled(self) -> bool:
+        """Check if plugin is enabled"""
+        return self.enabled
+
+    def __repr__(self) -> str:
+        return f"<{self.get_name()} enabled={self.enabled}>"

filter_pipeline/plugins/keyword.py

@@ -0,0 +1,97 @@
+"""
+Keyword Filter Plugin
+Simple keyword-based filtering.
+"""
+
+import logging
+from typing import Dict, Any, Optional, List
+
+from .base import BaseFilterPlugin
+from ..registry import register_plugin
+
+logger = logging.getLogger(__name__)
+
+
+@register_plugin("keyword")
+class KeywordFilterPlugin(BaseFilterPlugin):
+    """
+    Filter posts based on keyword matching.
+
+    Supports:
+    - Blocklist: Reject posts containing blocked keywords
+    - Allowlist: Only allow posts containing allowed keywords
+    - Case-insensitive matching
+    """
+
+    def __init__(self, config: Dict[str, Any]):
+        super().__init__(config)
+
+        self.blocklist = [k.lower() for k in config.get('blocklist', [])]
+        self.allowlist = [k.lower() for k in config.get('allowlist', [])]
+        self.check_title = config.get('check_title', True)
+        self.check_content = config.get('check_content', True)
+
+    def get_name(self) -> str:
+        return "KeywordFilter"
+
+    def should_filter(self, post: Dict[str, Any], context: Optional[Dict] = None) -> bool:
+        """
+        Check if post should be filtered out based on keywords.
+
+        Returns:
+            True if post contains blocked keywords or missing allowed keywords
+        """
+        text = self._get_text(post)
+
+        # Check blocklist
+        if self.blocklist:
+            for keyword in self.blocklist:
+                if keyword in text:
+                    logger.debug(f"KeywordFilter: Blocked keyword '{keyword}' found")
+                    return True
+
+        # Check allowlist (if specified, at least one keyword must be present)
+        if self.allowlist:
+            found = any(keyword in text for keyword in self.allowlist)
+            if not found:
+                logger.debug("KeywordFilter: No allowed keywords found")
+                return True
+
+        return False
+
+    def score(self, post: Dict[str, Any], context: Optional[Dict] = None) -> float:
+        """
+        Score based on keyword presence.
+
+        Returns:
+            1.0 if allowlist keywords present, 0.5 neutral, 0.0 if blocklist keywords present
+        """
+        text = self._get_text(post)
+
+        # Check blocklist
+        if self.blocklist:
+            for keyword in self.blocklist:
+                if keyword in text:
+                    return 0.0
+
+        # Check allowlist
+        if self.allowlist:
+            matches = sum(1 for keyword in self.allowlist if keyword in text)
+            if matches > 0:
+                return min(1.0, 0.5 + (matches * 0.1))
+
+        return 0.5  # Neutral
+
+    def _get_text(self, post: Dict[str, Any]) -> str:
+        """Get searchable text from post"""
+        text_parts = []
+
+        if self.check_title:
+            title = post.get('title', '')
+            text_parts.append(title)
+
+        if self.check_content:
+            content = post.get('content', '')
+            text_parts.append(content)
+
+        return ' '.join(text_parts).lower()

filter_pipeline/plugins/quality.py

@@ -0,0 +1,130 @@
+"""
+Quality Filter Plugin
+Filter based on quality metrics (readability, length, etc).
+"""
+
+import logging
+import re
+from typing import Dict, Any, Optional
+
+from .base import BaseFilterPlugin
+from ..registry import register_plugin
+
+logger = logging.getLogger(__name__)
+
+
+@register_plugin("quality")
+class QualityFilterPlugin(BaseFilterPlugin):
+    """
+    Filter posts based on quality metrics.
+
+    Metrics:
+    - Title length (too short or too long)
+    - Content length
+    - Excessive caps (SHOUTING)
+    - Excessive punctuation (!!!)
+    - Clickbait patterns
+    """
+
+    def __init__(self, config: Dict[str, Any]):
+        super().__init__(config)
+
+        self.min_title_length = config.get('min_title_length', 10)
+        self.max_title_length = config.get('max_title_length', 300)
+        self.min_content_length = config.get('min_content_length', 0)
+        self.max_caps_ratio = config.get('max_caps_ratio', 0.5)
+        self.max_exclamation_marks = config.get('max_exclamation_marks', 3)
+
+        # Clickbait patterns
+        self.clickbait_patterns = [
+            r'you won\'t believe',
+            r'shocking',
+            r'doctors hate',
+            r'this one trick',
+            r'number \d+ will',
+            r'what happened next'
+        ]
+
+    def get_name(self) -> str:
+        return "QualityFilter"
+
+    def should_filter(self, post: Dict[str, Any], context: Optional[Dict] = None) -> bool:
+        """
+        Check if post should be filtered based on quality.
+
+        Returns:
+            True if post fails quality checks
+        """
+        title = post.get('title', '')
+        content = post.get('content', '')
+
+        # Check title length
+        if len(title) < self.min_title_length:
+            logger.debug(f"QualityFilter: Title too short ({len(title)} chars)")
+            return True
+
+        if len(title) > self.max_title_length:
+            logger.debug(f"QualityFilter: Title too long ({len(title)} chars)")
+            return True
+
+        # Check content length (if specified)
+        if self.min_content_length > 0 and len(content) < self.min_content_length:
+            logger.debug(f"QualityFilter: Content too short ({len(content)} chars)")
+            return True
+
+        # Check excessive caps
+        if len(title) > 0:
+            caps_ratio = sum(1 for c in title if c.isupper()) / len(title)
+            if caps_ratio > self.max_caps_ratio and len(title) > 10:
+                logger.debug(f"QualityFilter: Excessive caps ({caps_ratio:.1%})")
+                return True
+
+        # Check excessive exclamation marks
+        exclamations = title.count('!')
+        if exclamations > self.max_exclamation_marks:
+            logger.debug(f"QualityFilter: Excessive exclamations ({exclamations})")
+            return True
+
+        # Check clickbait patterns
+        title_lower = title.lower()
+        for pattern in self.clickbait_patterns:
+            if re.search(pattern, title_lower):
+                logger.debug(f"QualityFilter: Clickbait pattern detected: {pattern}")
+                return True
+
+        return False
+
+    def score(self, post: Dict[str, Any], context: Optional[Dict] = None) -> float:
+        """
+        Score post quality.
+
+        Returns:
+            Quality score 0.0-1.0
+        """
+        title = post.get('title', '')
+        content = post.get('content', '')
+
+        score = 1.0
+
+        # Penalize for short title
+        if len(title) < 20:
+            score -= 0.1
+
+        # Penalize for excessive caps
+        if len(title) > 0:
+            caps_ratio = sum(1 for c in title if c.isupper()) / len(title)
+            if caps_ratio > 0.3:
+                score -= (caps_ratio - 0.3) * 0.5
+
+        # Penalize for exclamation marks
+        exclamations = title.count('!')
+        if exclamations > 0:
+            score -= exclamations * 0.05
+
+        # Bonus for longer content
+        if len(content) > 500:
+            score += 0.1
+        elif len(content) > 200:
+            score += 0.05
+
+        return max(0.0, min(1.0, score))

filter_pipeline/registry.py

@@ -0,0 +1,62 @@
+"""Registries for filter pipeline stages and plugins."""
+
+import importlib
+import logging
+from typing import Any, Dict, Iterable, Optional, Type
+
+logger = logging.getLogger(__name__)
+
+_STAGE_REGISTRY: Dict[str, Type[Any]] = {}
+_PLUGIN_REGISTRY: Dict[str, Type[Any]] = {}
+_DISCOVERED_MODULES = set()
+
+
+def register_stage(name: str):
+    """Register a pipeline stage class under a config name."""
+    def decorator(stage_cls: Type[Any]):
+        if name in _STAGE_REGISTRY and _STAGE_REGISTRY[name] is not stage_cls:
+            logger.warning("Replacing registered filter stage '%s'", name)
+        _STAGE_REGISTRY[name] = stage_cls
+        return stage_cls
+
+    return decorator
+
+
+def register_plugin(name: str):
+    """Register a filter plugin class under a config name."""
+    def decorator(plugin_cls: Type[Any]):
+        if name in _PLUGIN_REGISTRY and _PLUGIN_REGISTRY[name] is not plugin_cls:
+            logger.warning("Replacing registered filter plugin '%s'", name)
+        _PLUGIN_REGISTRY[name] = plugin_cls
+        return plugin_cls
+
+    return decorator
+
+
+def get_stage_class(name: str) -> Optional[Type[Any]]:
+    """Return a registered stage class by name."""
+    return _STAGE_REGISTRY.get(name)
+
+
+def get_plugin_class(name: str) -> Optional[Type[Any]]:
+    """Return a registered plugin class by name."""
+    return _PLUGIN_REGISTRY.get(name)
+
+
+def get_registered_stages() -> Dict[str, Type[Any]]:
+    """Return a copy of registered stage classes."""
+    return dict(_STAGE_REGISTRY)
+
+
+def get_registered_plugins() -> Dict[str, Type[Any]]:
+    """Return a copy of registered plugin classes."""
+    return dict(_PLUGIN_REGISTRY)
+
+
+def discover_modules(module_names: Iterable[str]):
+    """Import modules for registration side effects once."""
+    for module_name in module_names:
+        if not module_name or module_name in _DISCOVERED_MODULES:
+            continue
+        importlib.import_module(module_name)
+        _DISCOVERED_MODULES.add(module_name)

filter_pipeline/rules.py

@@ -0,0 +1,80 @@
+"""Shared rule evaluation for posts and comments."""
+
+from typing import Any, Dict
+
+
+def get_nested_value(obj: Dict[str, Any], path: str) -> Any:
+    """Get a nested dict value using dot notation."""
+    value = obj
+    for key in path.split("."):
+        if isinstance(value, dict) and key in value:
+            value = value[key]
+        else:
+            return None
+    return value
+
+
+def evaluate_rule(value: Any, operator: str, target: Any) -> bool:
+    """Evaluate one rule operator."""
+    if value is None:
+        return False
+
+    if operator == "equals":
+        return value == target
+    if operator == "not_equals":
+        return value != target
+    if operator == "in":
+        return value in target
+    if operator == "not_in":
+        return value not in target
+    if operator == "min":
+        return value >= target
+    if operator == "max":
+        return value <= target
+    if operator == "after":
+        return value > target
+    if operator == "before":
+        return value < target
+    if operator == "contains":
+        return target in value
+    if operator == "excludes":
+        if isinstance(value, list):
+            return not any(item in target for item in value)
+        return value not in target
+    if operator == "includes":
+        if isinstance(value, list):
+            return target in value
+        return False
+    if operator == "includes_any":
+        if isinstance(value, list) and isinstance(target, list):
+            for item in value:
+                if isinstance(item, dict):
+                    for rule in target:
+                        if (
+                            isinstance(rule, dict)
+                            and item.get("topic") == rule.get("topic")
+                            and item.get("confidence", 0) >= rule.get("confidence_min", 0)
+                        ):
+                            return True
+                elif item in target:
+                    return True
+        return False
+    if operator == "min_length":
+        return len(str(value)) >= target
+    if operator == "max_length":
+        return len(str(value)) <= target
+
+    return False
+
+
+def apply_rules(item: Dict[str, Any], rules: Dict[str, Dict[str, Any]]) -> bool:
+    """Return True when all field rules pass."""
+    if not rules:
+        return True
+
+    for field_path, rule_def in rules.items():
+        value = get_nested_value(item, field_path)
+        for operator, target in rule_def.items():
+            if not evaluate_rule(value, operator, target):
+                return False
+    return True

filter_pipeline/stages/__init__.py

@@ -0,0 +1,22 @@
+"""
+Pipeline Stages
+Sequential processing stages for content filtering.
+"""
+
+from .base_stage import BaseStage
+from .categorizer import CategorizerStage
+from .moderator import ModeratorStage
+from .filter import FilterStage
+from .ranker import RankerStage
+from .plugins import PluginStage
+from .comment_filter import CommentFilterStage
+
+__all__ = [
+    'BaseStage',
+    'CategorizerStage',
+    'ModeratorStage',
+    'FilterStage',
+    'RankerStage',
+    'PluginStage',
+    'CommentFilterStage',
+]

filter_pipeline/stages/base_stage.py

@@ -0,0 +1,72 @@
+"""
+Base Stage
+Abstract base class for all pipeline stages.
+"""
+
+from abc import ABC, abstractmethod
+from typing import List, Dict, Any
+from ..models import FilterResult
+
+
+class BaseStage(ABC):
+    """
+    Abstract base class for pipeline stages.
+
+    Each stage processes posts sequentially and can modify FilterResults.
+    Stages are executed in order: Categorizer → Moderator → Filter → Ranker
+
+    ``requires_ai`` marks stages that need the AI client. The engine uses it
+    to decide whether a filterset can run with AI disabled (offline filtersets
+    that only use rule/plugin/ranker stages still run; AI stages short-circuit
+    to the AI-disabled path so the feed is not silently blanked).
+    """
+
+    requires_ai: bool = False
+
+    def __init__(self, config: "FilterConfig", cache: Any):
+        """
+        Initialize stage.
+
+        Args:
+            config: FilterConfig instance for this pipeline run
+            cache: FilterCache instance
+        """
+        self.config = config
+        self.cache = cache
+        # Stages are enabled by default; a per-stage enabled flag can be set
+        # by subclasses reading their own config section. FilterConfig is not a
+        # dict, so do not call ``config.get(...)`` here.
+        self.enabled = True
+
+    @abstractmethod
+    def process(
+        self,
+        post: Dict[str, Any],
+        result: FilterResult
+    ) -> FilterResult:
+        """
+        Process a single post and update its FilterResult.
+
+        Args:
+            post: Post data dictionary
+            result: Current FilterResult for this post
+
+        Returns:
+            Updated FilterResult
+
+        Raises:
+            Exception if processing fails
+        """
+        pass
+
+    @abstractmethod
+    def get_name(self) -> str:
+        """Get stage name for logging"""
+        pass
+
+    def is_enabled(self) -> bool:
+        """Check if stage is enabled"""
+        return self.enabled
+
+    def __repr__(self) -> str:
+        return f"<{self.get_name()} enabled={self.enabled}>"

filter_pipeline/stages/categorizer.py

@@ -0,0 +1,171 @@
+"""
+Categorizer Stage
+Detect topics and categories using AI (cached by content hash).
+"""
+
+import logging
+from typing import Dict, Any
+from datetime import datetime
+
+from .base_stage import BaseStage
+from ..registry import register_stage
+from ..models import FilterResult, AIAnalysisResult
+from ..cache import FilterCache
+from ..ai_client import OpenRouterClient
+
+logger = logging.getLogger(__name__)
+
+
+@register_stage("categorizer")
+class CategorizerStage(BaseStage):
+    """
+    Stage 1: Categorize content and extract tags.
+
+    Uses AI to detect topics/categories with content-hash based caching.
+    """
+
+    requires_ai = True
+
+    def __init__(self, config, cache: FilterCache):
+        super().__init__(config, cache)
+
+        # Initialize AI client if enabled
+        self.ai_client = None
+        if config.is_ai_enabled():
+            api_key = config.get_openrouter_key()
+            if api_key:
+                model = config.get_ai_model('cheap')  # Use cheap model
+                self.ai_client = OpenRouterClient(api_key, model)
+                logger.info("Categorizer: AI client initialized")
+            else:
+                logger.warning("Categorizer: AI enabled but no API key found")
+
+        # Default categories
+        self.default_categories = [
+            'technology', 'programming', 'science', 'news',
+            'politics', 'business', 'entertainment', 'sports', 'other'
+        ]
+
+    def get_name(self) -> str:
+        return "Categorizer"
+
+    def process(self, post: Dict[str, Any], result: FilterResult) -> FilterResult:
+        """
+        Categorize post and add tags.
+
+        Args:
+            post: Post data
+            result: Current FilterResult
+
+        Returns:
+            Updated FilterResult with categories and tags
+        """
+        title = post.get('title', '')
+        content = post.get('content', '')
+
+        # Compute content hash for caching
+        content_hash = self.cache.compute_content_hash(title, content)
+        result.cache_key = content_hash
+
+        # Try to get cached AI analysis
+        cached_analysis = self.cache.get_ai_analysis(content_hash)
+
+        if cached_analysis:
+            # Use cached categorization
+            result.categories = cached_analysis.categories
+            result.tags.extend(self._extract_platform_tags(post))
+
+            logger.debug(f"Categorizer: Cache hit for {content_hash[:8]}...")
+            return result
+
+        # No cache, need to categorize
+        if self.ai_client:
+            categories, category_scores = self._categorize_with_ai(title, content)
+        else:
+            # Fallback: Use platform/source as category
+            categories, category_scores = self._categorize_fallback(post)
+
+        # Store in AI analysis result for caching
+        ai_analysis = AIAnalysisResult(
+            content_hash=content_hash,
+            categories=categories,
+            category_scores=category_scores,
+            analyzed_at=datetime.now(),
+            model_used=self.ai_client.model if self.ai_client else 'fallback'
+        )
+
+        # Cache AI analysis
+        self.cache.set_ai_analysis(content_hash, ai_analysis)
+
+        # Update result
+        result.categories = categories
+        result.tags.extend(self._extract_platform_tags(post))
+
+        logger.debug(f"Categorizer: Analyzed {content_hash[:8]}... -> {categories}")
+        return result
+
+    def _categorize_with_ai(self, title: str, content: str) -> tuple:
+        """
+        Categorize using AI.
+
+        Returns:
+            (categories list, category_scores dict)
+        """
+        try:
+            response = self.ai_client.categorize(title, content, self.default_categories)
+
+            category = response.get('category', 'other')
+            confidence = response.get('confidence', 0.5)
+
+            categories = [category]
+            category_scores = {category: confidence}
+
+            return categories, category_scores
+
+        except Exception as e:
+            logger.error(f"AI categorization failed: {e}")
+            return ['other'], {'other': 0.0}
+
+    def _categorize_fallback(self, post: Dict[str, Any]) -> tuple:
+        """
+        Fallback categorization using platform/source.
+
+        Returns:
+            (categories list, category_scores dict)
+        """
+        # Use source as category
+        source = post.get('source', '').lower()
+
+        # Map common sources to categories
+        category_map = {
+            'programming': 'programming',
+            'python': 'programming',
+            'javascript': 'programming',
+            'technology': 'technology',
+            'science': 'science',
+            'politics': 'politics',
+            'worldnews': 'news',
+            'news': 'news'
+        }
+
+        category = category_map.get(source, 'other')
+        return [category], {category: 0.5}
+
+    def _extract_platform_tags(self, post: Dict[str, Any]) -> list:
+        """Extract tags from platform, source, etc."""
+        tags = []
+
+        platform = post.get('platform', '')
+        if platform:
+            tags.append(platform)
+
+        source = post.get('source', '')
+        if source:
+            tags.append(source)
+
+        # Extract existing tags
+        existing_tags = post.get('tags', [])
+        if existing_tags:
+            tags.extend(existing_tags)
+
+        return list(set(tags))  # Remove duplicates

filter_pipeline/stages/comment_filter.py

@@ -0,0 +1,124 @@
+"""Comment filtering stage and tree modes."""
+
+import logging
+from datetime import datetime
+from typing import Any, Dict, List
+
+from .base_stage import BaseStage
+from ..models import FilterResult
+from ..registry import register_stage
+from ..rules import apply_rules
+
+logger = logging.getLogger(__name__)
+
+
+@register_stage("comment_filter")
+class CommentFilterStage(BaseStage):
+    """Apply filterset comment rules using configured tree modes."""
+
+    def get_name(self) -> str:
+        return "CommentFilter"
+
+    def process(self, post: Dict[str, Any], result: FilterResult) -> FilterResult:
+        """Post pipeline no-op; comments are filtered through filter_comments()."""
+        return result
+
+    def filter_comments(self, comments: List[Dict[str, Any]], filterset_name: str) -> List[Dict[str, Any]]:
+        if not comments:
+            return []
+
+        filterset = self.config.get_filterset(filterset_name) or {}
+        rules = filterset.get("comment_rules", {})
+        mode = filterset.get("comment_filter_mode", "individual")
+
+        if not rules:
+            return [dict(comment) for comment in comments]
+
+        if mode == "tree_pruning":
+            return self._filter_tree_pruning(comments, rules)
+        if mode == "score_based":
+            return self._filter_individual(comments, rules, extra_check=self._passes_score_rules)
+        if mode == "time_bound":
+            return self._filter_individual(comments, rules, extra_check=self._passes_time_rules)
+        if mode == "content_length":
+            return self._filter_individual(comments, rules, extra_check=self._passes_length_rules)
+
+        return self._filter_individual(comments, rules)
+
+    def _filter_tree_pruning(self, comments: List[Dict[str, Any]], rules: Dict[str, Any]) -> List[Dict[str, Any]]:
+        comment_map = {comment["uuid"]: {**comment, "children": []} for comment in comments if comment.get("uuid")}
+        roots = []
+        for comment in comments:
+            uuid = comment.get("uuid")
+            if not uuid or uuid not in comment_map:
+                continue
+            parent_uuid = comment.get("parent_comment_uuid")
+            if parent_uuid and parent_uuid in comment_map:
+                comment_map[parent_uuid]["children"].append(comment_map[uuid])
+            else:
+                roots.append(comment_map[uuid])
+
+        def prune(nodes):
+            pruned = []
+            for node in nodes:
+                if self._passes_comment_rules(node, rules):
+                    node["children"] = prune(node.get("children", []))
+                    pruned.append(node)
+            return pruned
+
+        return self._flatten_tree(prune(roots))
+
+    def _filter_individual(self, comments, rules, extra_check=None):
+        filtered = []
+        for comment in comments:
+            item = dict(comment)
+            if self._passes_comment_rules(item, rules) and (extra_check is None or extra_check(item, rules)):
+                filtered.append(item)
+        return filtered
+
+    def _passes_comment_rules(self, comment: Dict[str, Any], rules: Dict[str, Any]) -> bool:
+        return apply_rules(comment, rules)
+
+    def _passes_score_rules(self, comment: Dict[str, Any], rules: Dict[str, Any]) -> bool:
+        score_rules = rules.get("score", {})
+        min_score = score_rules.get("min", -1000)
+        return comment.get("score", 0) >= min_score
+
+    def _passes_time_rules(self, comment: Dict[str, Any], rules: Dict[str, Any]) -> bool:
+        time_rules = rules.get("timestamp", {})
+        timestamp = comment.get("timestamp")
+        if not timestamp:
+            return "timestamp" not in rules
+        try:
+            if isinstance(timestamp, (int, float)):
+                comment_time = datetime.fromtimestamp(timestamp)
+            else:
+                comment_time = datetime.fromisoformat(str(timestamp).replace("Z", "+00:00"))
+            after = time_rules.get("after")
+            before = time_rules.get("before")
+            if after and comment_time <= datetime.fromisoformat(str(after).replace("Z", "+00:00")):
+                return False
+            if before and comment_time >= datetime.fromisoformat(str(before).replace("Z", "+00:00")):
+                return False
+            return True
+        except (ValueError, TypeError):
+            return False
+
+    def _passes_length_rules(self, comment: Dict[str, Any], rules: Dict[str, Any]) -> bool:
+        length_rules = rules.get("content_length", {})
+        content_length = len(comment.get("content", ""))
+        min_length = length_rules.get("min", 0)
+        max_length = length_rules.get("max", float("inf"))
+        return min_length <= content_length <= max_length
+
+    def _flatten_tree(self, tree: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
+        flat = []
+
+        def traverse(nodes):
+            for node in nodes:
+                children = node.pop("children", [])
+                flat.append(node)
+                traverse(children)
+
+        traverse(tree)
+        return flat

filter_pipeline/stages/filter.py

@@ -0,0 +1,46 @@
+"""
+Filter Stage
+Apply filterset rules to posts (no AI needed - fast rule evaluation).
+"""
+
+import logging
+from typing import Dict, Any
+
+from .base_stage import BaseStage
+from ..models import FilterResult
+from ..registry import register_stage
+from ..rules import apply_rules
+
+logger = logging.getLogger(__name__)
+
+
+@register_stage("filter")
+class FilterStage(BaseStage):
+    """
+    Stage 3: Apply filterset rules.
+
+    Evaluates filter conditions from filtersets.json without AI.
+    Fast rule-based filtering.
+    """
+
+    def get_name(self) -> str:
+        return "Filter"
+
+    def process(self, post: Dict[str, Any], result: FilterResult) -> FilterResult:
+        """Apply filterset post rules to a post."""
+        filterset = self.config.get_filterset(result.filterset_name)
+        if not filterset:
+            logger.warning(f"Filterset '{result.filterset_name}' not found")
+            return result
+
+        item = dict(post)
+        if result.moderation_data:
+            item["moderation"] = result.moderation_data
+
+        if not apply_rules(item, filterset.get("post_rules", {})):
+            result.passed = False
+            logger.debug(f"Filter: Post {post.get('uuid', '')} rejected by filterset rules")
+            return result
+
+        logger.debug(f"Filter: Post {post.get('uuid', '')} passed filterset '{result.filterset_name}'")
+        return result

filter_pipeline/stages/moderator.py

@@ -0,0 +1,157 @@
+"""
+Moderator Stage
+Safety and quality analysis using AI (cached by content hash).
+"""
+
+import logging
+from typing import Dict, Any
+from datetime import datetime
+
+from .base_stage import BaseStage
+from ..registry import register_stage
+from ..models import FilterResult, AIAnalysisResult
+from ..cache import FilterCache
+from ..ai_client import OpenRouterClient
+
+logger = logging.getLogger(__name__)
+
+
+@register_stage("moderator")
+class ModeratorStage(BaseStage):
+    """
+    Stage 2: Content moderation and quality analysis.
+
+    Uses AI to analyze safety, quality, and sentiment with content-hash based caching.
+    """
+
+    requires_ai = True
+
+    def __init__(self, config, cache: FilterCache):
+        super().__init__(config, cache)
+
+        # Initialize AI client if enabled
+        self.ai_client = None
+        if config.is_ai_enabled():
+            api_key = config.get_openrouter_key()
+            if api_key:
+                model = config.get_ai_model('cheap')  # Use cheap model
+                self.ai_client = OpenRouterClient(api_key, model)
+                logger.info("Moderator: AI client initialized")
+            else:
+                logger.warning("Moderator: AI enabled but no API key found")
+
+    def get_name(self) -> str:
+        return "Moderator"
+
+    def process(self, post: Dict[str, Any], result: FilterResult) -> FilterResult:
+        """
+        Moderate post for safety and quality.
+
+        Args:
+            post: Post data
+            result: Current FilterResult
+
+        Returns:
+            Updated FilterResult with moderation data
+        """
+        title = post.get('title', '')
+        content = post.get('content', '')
+
+        # Use existing cache key from Categorizer
+        content_hash = result.cache_key or self.cache.compute_content_hash(title, content)
+
+        # Try to get cached AI analysis
+        cached_analysis = self.cache.get_ai_analysis(content_hash)
+
+        if cached_analysis and cached_analysis.moderation:
+            # Use cached moderation data
+            result.moderation_data = cached_analysis.moderation
+            result.score_breakdown['quality'] = cached_analysis.quality_score
+
+            logger.debug(f"Moderator: Cache hit for {content_hash[:8]}...")
+            return result
+
+        # No cache, need to moderate
+        if self.ai_client:
+            moderation, quality_score, sentiment = self._moderate_with_ai(title, content)
+        else:
+            # Fallback: Safe defaults
+            moderation, quality_score, sentiment = self._moderate_fallback(post)
+
+        # Update or create AI analysis result
+        if cached_analysis:
+            # Update existing analysis with moderation data
+            cached_analysis.moderation = moderation
+            cached_analysis.quality_score = quality_score
+            cached_analysis.sentiment = sentiment.get('sentiment')
+            cached_analysis.sentiment_score = sentiment.get('score', 0.0)
+            ai_analysis = cached_analysis
+        else:
+            # Create new analysis
+            ai_analysis = AIAnalysisResult(
+                content_hash=content_hash,
+                moderation=moderation,
+                quality_score=quality_score,
+                sentiment=sentiment.get('sentiment'),
+                sentiment_score=sentiment.get('score', 0.0),
+                analyzed_at=datetime.now(),
+                model_used=self.ai_client.model if self.ai_client else 'fallback'
+            )
+
+        # Cache AI analysis
+        self.cache.set_ai_analysis(content_hash, ai_analysis)
+
+        # Update result
+        result.moderation_data = moderation
+        result.score_breakdown['quality'] = quality_score
+        result.score_breakdown['sentiment'] = sentiment.get('score', 0.0)
+
+        logger.debug(f"Moderator: Analyzed {content_hash[:8]}... (quality: {quality_score:.2f})")
+        return result
+
+    def _moderate_with_ai(self, title: str, content: str) -> tuple:
+        """
+        Moderate using AI.
+
+        Returns:
+            (moderation dict, quality_score float, sentiment dict)
+        """
+        try:
+            # Run moderation
+            moderation = self.ai_client.moderate(title, content)
+
+            # Run quality scoring
+            quality_score = self.ai_client.score_quality(title, content)
+
+            # Run sentiment analysis
+            sentiment = self.ai_client.analyze_sentiment(title, content)
+
+            return moderation, quality_score, sentiment
+
+        except Exception as e:
+            logger.error(f"AI moderation failed: {e}")
+            return self._moderate_fallback({})
+
+    def _moderate_fallback(self, post: Dict[str, Any]) -> tuple:
+        """
+        Fallback moderation with safe defaults.
+
+        Returns:
+            (moderation dict, quality_score float, sentiment dict)
+        """
+        moderation = {
+            'violence': 0.0,
+            'sexual_content': 0.0,
+            'hate_speech': 0.0,
+            'harassment': 0.0,
+            'is_safe': True
+        }
+
+        quality_score = 0.5  # Neutral quality
+
+        sentiment = {
+            'sentiment': 'neutral',
+            'score': 0.0
+        }
+
+        return moderation, quality_score, sentiment

filter_pipeline/stages/plugins.py

@@ -0,0 +1,89 @@
+"""Plugin consumer stage for registered BaseFilterPlugin implementations."""
+
+import logging
+from typing import Any, Dict, List
+
+from .base_stage import BaseStage
+from ..models import FilterResult
+from ..registry import get_plugin_class, register_stage
+
+logger = logging.getLogger(__name__)
+
+
+@register_stage("plugins")
+class PluginStage(BaseStage):
+    """Run configured filter plugins against each post."""
+
+    def __init__(self, config, cache):
+        super().__init__(config, cache)
+        self._plugin_instances = None
+
+    def get_name(self) -> str:
+        return "Plugins"
+
+    def process(self, post: Dict[str, Any], result: FilterResult) -> FilterResult:
+        """Apply configured plugins to a post/result pair."""
+        plugins = self._get_plugins(result.filterset_name)
+        if not plugins:
+            return result
+
+        context = {
+            "filterset_name": result.filterset_name,
+            "categories": result.categories,
+            "tags": result.tags,
+            "moderation": result.moderation_data,
+            "score_breakdown": result.score_breakdown,
+        }
+
+        plugin_scores = []
+        for plugin in plugins:
+            if not plugin.is_enabled():
+                continue
+
+            try:
+                if plugin.should_filter(post, context):
+                    result.passed = False
+                    result.tags.append(f"plugin:{plugin.get_name()}:rejected")
+                    logger.debug("Plugin %s rejected post %s", plugin.get_name(), post.get("uuid", ""))
+                    return result
+
+                score = plugin.score(post, context)
+                plugin_scores.append(score)
+                result.score_breakdown[f"plugin:{plugin.get_name()}"] = score
+                result.tags.append(f"plugin:{plugin.get_name()}")
+            except Exception as e:
+                logger.error("Plugin %s failed: %s", plugin.get_name(), e)
+                result.error = f"plugin:{plugin.get_name()}: {e}"
+                result.passed = False
+                return result
+
+        if plugin_scores:
+            result.score_breakdown["plugins"] = sum(plugin_scores) / len(plugin_scores)
+            # Blend plugin judgment with the current score without replacing
+            # ranking completely. Ranker can still run later and overwrite the
+            # final score from its own weighted factors.
+            result.score = (result.score + result.score_breakdown["plugins"]) / 2
+
+        return result
+
+    def _get_plugins(self, filterset_name: str) -> List[Any]:
+        if self._plugin_instances is None:
+            self._plugin_instances = self._build_plugin_instances()
+
+        filterset = self.config.get_filterset(filterset_name) or {}
+        plugin_names = filterset.get("plugins")
+        if plugin_names is None:
+            plugin_names = self.config.config.get("plugins", {}).get("enabled", [])
+
+        return [self._plugin_instances[name] for name in plugin_names if name in self._plugin_instances]
+
+    def _build_plugin_instances(self) -> Dict[str, Any]:
+        plugin_config = self.config.config.get("plugins", {})
+        instances = {}
+        for name, settings in plugin_config.get("configs", {}).items():
+            plugin_cls = get_plugin_class(name)
+            if not plugin_cls:
+                logger.warning("Configured plugin '%s' is not registered", name)
+                continue
+            instances[name] = plugin_cls(settings or {})
+        return instances

filter_pipeline/stages/ranker.py

@@ -0,0 +1,203 @@
+"""
+Ranker Stage
+Score and rank posts based on quality, recency, and source.
+"""
+
+import logging
+from typing import Dict, Any
+from datetime import datetime
+
+from .base_stage import BaseStage
+from ..registry import register_stage
+from ..models import FilterResult
+
+logger = logging.getLogger(__name__)
+
+
+@register_stage("ranker")
+class RankerStage(BaseStage):
+    """
+    Stage 4: Score and rank posts.
+
+    Combines multiple factors:
+    - Quality score (from Moderator)
+    - Recency (how recent the post is)
+    - Source tier (platform/source reputation)
+    - User engagement (score, replies)
+    """
+
+    def __init__(self, config, cache):
+        super().__init__(config, cache)
+
+        # Scoring weights
+        self.weights = {
+            'quality': 0.3,
+            'recency': 0.25,
+            'source_tier': 0.25,
+            'engagement': 0.20
+        }
+
+        # Source tiers (higher = better)
+        self.source_tiers = {
+            'tier1': ['hackernews', 'arxiv', 'nature', 'science'],
+            'tier2': ['reddit', 'stackoverflow', 'github'],
+            'tier3': ['twitter', 'medium', 'dev.to']
+        }
+
+    def get_name(self) -> str:
+        return "Ranker"
+
+    def process(self, post: Dict[str, Any], result: FilterResult) -> FilterResult:
+        """
+        Calculate final score for post.
+
+        Args:
+            post: Post data
+            result: Current FilterResult
+
+        Returns:
+            Updated FilterResult with final score
+        """
+        # Calculate component scores
+        quality_score = self._get_quality_score(result)
+        recency_score = self._calculate_recency_score(post)
+        source_score = self._calculate_source_score(post)
+        engagement_score = self._calculate_engagement_score(post)
+
+        # Store breakdown
+        result.score_breakdown.update({
+            'quality': quality_score,
+            'recency': recency_score,
+            'source_tier': source_score,
+            'engagement': engagement_score
+        })
+
+        # Calculate weighted final score
+        final_score = (
+            quality_score * self.weights['quality'] +
+            recency_score * self.weights['recency'] +
+            source_score * self.weights['source_tier'] +
+            engagement_score * self.weights['engagement']
+        )
+
+        result.score = final_score
+
+        logger.debug(
+            f"Ranker: Post {post.get('uuid', '')[:8]}... score={final_score:.3f} "
+            f"(q:{quality_score:.2f}, r:{recency_score:.2f}, s:{source_score:.2f}, e:{engagement_score:.2f})"
+        )
+
+        return result
+
+    def _get_quality_score(self, result: FilterResult) -> float:
+        """Get quality score from Moderator stage"""
+        return result.score_breakdown.get('quality', 0.5)
+
+    def _calculate_recency_score(self, post: Dict[str, Any]) -> float:
+        """
+        Calculate recency score based on post age.
+
+        Returns:
+            Score 0.0-1.0 (1.0 = very recent, 0.0 = very old)
+        """
+        timestamp = post.get('timestamp')
+        if not timestamp:
+            return 0.5  # Neutral if no timestamp
+
+        try:
+            # Convert to datetime
+            if isinstance(timestamp, int):
+                post_time = datetime.fromtimestamp(timestamp)
+            else:
+                post_time = datetime.fromisoformat(str(timestamp))
+
+            # Calculate age in hours
+            age_seconds = (datetime.now() - post_time).total_seconds()
+            age_hours = age_seconds / 3600
+
+            # Scoring curve
+            if age_hours < 1:
+                return 1.0
+            elif age_hours < 6:
+                return 0.9
+            elif age_hours < 12:
+                return 0.75
+            elif age_hours < 24:
+                return 0.6
+            elif age_hours < 48:
+                return 0.4
+            elif age_hours < 168:  # 1 week
+                return 0.25
+            else:
+                return 0.1
+
+        except Exception as e:
+            logger.debug(f"Error calculating recency: {e}")
+            return 0.5
+
+    def _calculate_source_score(self, post: Dict[str, Any]) -> float:
+        """
+        Calculate source tier score.
+
+        Returns:
+            Score 0.0-1.0 based on source reputation
+        """
+        platform = post.get('platform', '').lower()
+        source = post.get('source', '').lower()
+
+        # Check tier 1
+        if any(t in platform or t in source for t in self.source_tiers['tier1']):
+            return 1.0
+
+        # Check tier 2
+        if any(t in platform or t in source for t in self.source_tiers['tier2']):
+            return 0.7
+
+        # Check tier 3
+        if any(t in platform or t in source for t in self.source_tiers['tier3']):
+            return 0.5
+
+        # Unknown source
+        return 0.3
+
+    def _calculate_engagement_score(self, post: Dict[str, Any]) -> float:
+        """
+        Calculate engagement score based on upvotes/score and comments.
+
+        Returns:
+            Score 0.0-1.0 based on engagement metrics
+        """
+        score = post.get('score', 0)
+        replies = post.get('replies', 0)
+
+        # Normalize scores (logarithmic scale)
+        import math
+
+        # Score component (0-1)
+        if score <= 0:
+            score_component = 0.0
+        elif score < 10:
+            score_component = score / 10
+        elif score < 100:
+            score_component = 0.1 + (math.log10(score) - 1) * 0.3  # 0.1-0.4
+        elif score < 1000:
+            score_component = 0.4 + (math.log10(score) - 2) * 0.3  # 0.4-0.7
+        else:
+            score_component = min(1.0, 0.7 + (math.log10(score) - 3) * 0.1)  # 0.7-1.0
+
+        # Replies component (0-1)
+        if replies <= 0:
+            replies_component = 0.0
+        elif replies < 5:
+            replies_component = replies / 5
+        elif replies < 20:
+            replies_component = 0.2 + (replies - 5) / 15 * 0.3  # 0.2-0.5
+        elif replies < 100:
+            replies_component = 0.5 + (math.log10(replies) - math.log10(20)) / (2 - math.log10(20)) * 0.3  # 0.5-0.8
+        else:
+            replies_component = min(1.0, 0.8 + (math.log10(replies) - 2) * 0.1)  # 0.8-1.0
+
+        # Weighted combination (score matters more than replies)
+        engagement_score = score_component * 0.7 + replies_component * 0.3
+
+        return engagement_score

filtersets.json

@@ -68,5 +68,15 @@
       "moderation.flags.is_blocked": {"equals": false}
     },
     "comment_filter_mode": "tree_pruning"
+  },
+  "quality_filter": {
+    "description": "Offline quality + keyword filter (no AI required)",
+    "pipeline_stages": ["plugins", "ranker"],
+    "plugins": ["keyword", "quality"],
+    "post_rules": {},
+    "comment_rules": {
+      "content": {"min_length": 5}
+    },
+    "comment_filter_mode": "individual"
   }
 }

generate_html.py

@@ -1,297 +0,0 @@
-#!/usr/bin/env python3
-"""
-Static HTML Generator
-Generates static HTML from collected posts/comments with filtering and moderation.
-"""
-
-import argparse
-import json
-from pathlib import Path
-from datetime import datetime
-from typing import Dict, List, Optional
-
-from filter_lib import filter_lib, TreePruningMode, IndividualFilterMode
-from comment_lib import comment_lib
-from html_generation_lib import html_generation_lib
-
-
-class HTMLGenerator:
-    """Generate static HTML from filtered posts and comments"""
-
-    def __init__(self, data_dir: str = "./data", filtersets_path: str = "./filtersets.json"):
-        self.data_dir = Path(data_dir)
-        self.filtersets_path = filtersets_path
-
-        # Load filtersets
-        self.filtersets = filter_lib.load_filterset(filtersets_path)
-
-        # Load moderation data into memory for faster access
-        self.moderation_data = self._load_all_moderation()
-
-    def _load_all_moderation(self) -> Dict:
-        """Load all moderation files into a dict keyed by UUID"""
-        moderation_dir = self.data_dir / "moderation"
-        moderation_data = {}
-
-        if moderation_dir.exists():
-            for mod_file in moderation_dir.glob("*.json"):
-                mod_uuid = mod_file.stem
-                with open(mod_file, 'r') as f:
-                    moderation_data[mod_uuid] = json.load(f)
-
-        return moderation_data
-
-    def _load_post_index(self) -> Dict:
-        """Load post index"""
-        index_file = self.data_dir / "post_index.json"
-        if index_file.exists():
-            with open(index_file, 'r') as f:
-                return json.load(f)
-        return {}
-
-    def _load_post_by_uuid(self, post_uuid: str) -> Optional[Dict]:
-        """Load a post by UUID"""
-        return filter_lib.load_data_by_uuid(post_uuid, str(self.data_dir / "posts"))
-
-    def generate(self, filterset_name: str, theme_name: str, output_dir: str):
-        """
-        Main generation function.
-        Loads data, applies filters, renders HTML.
-        """
-        print(f"\n{'='*60}")
-        print(f"Generating HTML")
-        print(f"  Filterset: {filterset_name}")
-        print(f"  Theme: {theme_name}")
-        print(f"  Output: {output_dir}")
-        print(f"{'='*60}\n")
-
-        # Load filterset
-        if filterset_name not in self.filtersets:
-            print(f"Error: Filterset '{filterset_name}' not found")
-            return
-
-        filterset = self.filtersets[filterset_name]
-        post_rules = filterset.get('post_rules', {})
-        comment_rules = filterset.get('comment_rules', {})
-        comment_filter_mode = filterset.get('comment_filter_mode', 'tree_pruning')
-
-        # Choose comment filter mode
-        if comment_filter_mode == 'tree_pruning':
-            comment_filter = TreePruningMode
-        else:
-            comment_filter = IndividualFilterMode
-
-        # Load theme
-        try:
-            theme = html_generation_lib.load_theme(theme_name)
-        except Exception as e:
-            print(f"Error loading theme: {e}")
-            return
-
-        # Load post index
-        post_index = self._load_post_index()
-        print(f"Found {len(post_index)} posts in index")
-
-        # Filter and render posts
-        filtered_posts = []
-        generation_stats = {
-            'total_posts_checked': 0,
-            'posts_passed': 0,
-            'posts_failed': 0,
-            'total_comments_checked': 0,
-            'comments_passed': 0,
-            'comments_failed': 0
-        }
-
-        for post_id, post_uuid in post_index.items():
-            generation_stats['total_posts_checked'] += 1
-
-            # Load post
-            post = self._load_post_by_uuid(post_uuid)
-            if not post:
-                continue
-
-            # Merge moderation data
-            filter_lib.merge_moderation(post, self.moderation_data)
-
-            # Apply post rules
-            if not filter_lib.apply_rules(post, post_rules):
-                generation_stats['posts_failed'] += 1
-                continue
-
-            generation_stats['posts_passed'] += 1
-
-            # Load comments for this post
-            comments = comment_lib.load_comments_for_post(post_uuid, str(self.data_dir))
-
-            if comments:
-                generation_stats['total_comments_checked'] += len(comments)
-
-                # Filter comments using selected mode
-                filtered_comments = comment_filter.filter(comments, comment_rules, self.moderation_data)
-                generation_stats['comments_passed'] += len(filtered_comments)
-                generation_stats['comments_failed'] += len(comments) - len(filtered_comments)
-
-                # Build comment tree for rendering
-                comment_tree = comment_lib.build_comment_tree(filtered_comments)
-                post['comments'] = comment_tree
-            else:
-                post['comments'] = []
-
-            filtered_posts.append(post)
-
-        print(f"\nFiltering Results:")
-        print(f"  Posts: {generation_stats['posts_passed']}/{generation_stats['total_posts_checked']} passed")
-        print(f"  Comments: {generation_stats['comments_passed']}/{generation_stats['total_comments_checked']} passed")
-
-        # Create output directory
-        output_path = Path(output_dir) / filterset_name
-        output_path.mkdir(parents=True, exist_ok=True)
-
-        # Render index page
-        for post in filtered_posts:
-            post['post_url'] = f"{post['uuid']}.html"
-        index_html = html_generation_lib.render_index(filtered_posts, theme, filterset_name)
-        html_generation_lib.write_html_file(index_html, str(output_path / "index.html"))
-
-        # Render individual post pages
-        for post in filtered_posts:
-            post_html = html_generation_lib.render_post_page(post, theme, post.get('comments'))
-            post_filename = f"{post['uuid']}.html"
-            html_generation_lib.write_html_file(post_html, str(output_path / post_filename))
-
-        # Generate metadata file
-        metadata = {
-            "generated_at": datetime.now().isoformat(),
-            "filterset": filterset_name,
-            "filterset_config": filterset,
-            "theme": theme_name,
-            "output_directory": str(output_path),
-            "statistics": {
-                **generation_stats,
-                "posts_generated": len(filtered_posts)
-            },
-            "comment_filter_mode": comment_filter_mode
-        }
-
-        metadata_file = output_path / "metadata.json"
-        with open(metadata_file, 'w') as f:
-            json.dump(metadata, f, indent=2)
-
-        print(f"\nGeneration Complete:")
-        print(f"  Index page: {output_path / 'index.html'}")
-        print(f"  Individual posts: {len(filtered_posts)} files")
-        print(f"  Metadata: {metadata_file}")
-        print(f"{'='*60}\n")
-
-
-def interactive_mode():
-    """Interactive mode for human use"""
-    print("\n=== HTML Generator - Interactive Mode ===\n")
-
-    # List available filtersets
-    try:
-        filtersets = filter_lib.load_filterset("./filtersets.json")
-        print("Available filtersets:")
-        for i, (name, config) in enumerate(filtersets.items(), 1):
-            desc = config.get('description', 'No description')
-            print(f"  {i}. {name} - {desc}")
-
-        filterset_choice = input("\nEnter filterset name or number: ").strip()
-
-        # Handle numeric choice
-        if filterset_choice.isdigit():
-            idx = int(filterset_choice) - 1
-            filterset_name = list(filtersets.keys())[idx]
-        else:
-            filterset_name = filterset_choice
-
-        # List available themes
-        themes_dir = Path("./themes")
-        if themes_dir.exists():
-            themes = [d.name for d in themes_dir.iterdir() if d.is_dir()]
-            print("\nAvailable themes:")
-            for i, theme in enumerate(themes, 1):
-                print(f"  {i}. {theme}")
-
-            theme_choice = input("\nEnter theme name or number: ").strip()
-
-            if theme_choice.isdigit():
-                idx = int(theme_choice) - 1
-                theme_name = themes[idx]
-            else:
-                theme_name = theme_choice
-        else:
-            theme_name = "vanilla-js"
-
-        # Output directory
-        output_dir = input("\nOutput directory [./active_html]: ").strip()
-        if not output_dir:
-            output_dir = "./active_html"
-
-        # Run generation
-        generator = HTMLGenerator()
-        generator.generate(filterset_name, theme_name, output_dir)
-
-    except Exception as e:
-        print(f"Error: {e}")
-        import traceback
-        traceback.print_exc()
-
-
-def main():
-    """Main entry point with CLI argument parsing"""
-    parser = argparse.ArgumentParser(
-        description="Generate static HTML from collected posts with filtering"
-    )
-
-    parser.add_argument(
-        '--filterset',
-        default='safe_content',
-        help='Filterset name to use (default: safe_content)'
-    )
-
-    parser.add_argument(
-        '--theme',
-        default='vanilla-js',
-        help='Theme name to use (default: vanilla-js)'
-    )
-
-    parser.add_argument(
-        '--output',
-        default='./active_html',
-        help='Output directory (default: ./active_html)'
-    )
-
-    parser.add_argument(
-        '--interactive',
-        action='store_true',
-        help='Run in interactive mode'
-    )
-
-    parser.add_argument(
-        '--data-dir',
-        default='./data',
-        help='Data directory (default: ./data)'
-    )
-
-    parser.add_argument(
-        '--filtersets-file',
-        default='./filtersets.json',
-        help='Filtersets file (default: ./filtersets.json)'
-    )
-
-    args = parser.parse_args()
-
-    if args.interactive:
-        interactive_mode()
-    else:
-        generator = HTMLGenerator(
-            data_dir=args.data_dir,
-            filtersets_path=args.filtersets_file
-        )
-        generator.generate(args.filterset, args.theme, args.output)
-
-
-if __name__ == "__main__":
-    main()

html_generation_lib.py

@@ -1,515 +0,0 @@
-"""
-HTML Generation Library
-Atomic functions for loading themes and rendering HTML from templates.
-"""
-
-import json
-from pathlib import Path
-from typing import Dict, List, Optional
-from datetime import datetime
-import jinja2
-
-
-class html_generation_lib:
-    """Atomic HTML generation functions"""
-
-    @staticmethod
-    def load_theme(theme_name: str, themes_dir: str = './themes') -> Dict:
-        """
-        Load theme configuration and templates.
-
-        Returns:
-            Dict with theme config, template paths, and metadata
-        """
-        theme_dir = Path(themes_dir) / theme_name
-        theme_config_path = theme_dir / 'theme.json'
-
-        if not theme_config_path.exists():
-            raise FileNotFoundError(f"Theme config not found: {theme_config_path}")
-
-        with open(theme_config_path, 'r') as f:
-            config = json.load(f)
-
-        # Load template files
-        templates = {}
-        if 'templates' in config:
-            for template_name, template_path in config['templates'].items():
-                full_path = Path(template_path)
-                if full_path.exists():
-                    with open(full_path, 'r') as f:
-                        templates[template_name] = f.read()
-
-        config['loaded_templates'] = templates
-        config['theme_dir'] = str(theme_dir)
-
-        return config
-
-    @staticmethod
-    def render_template(template_string: str, data: Dict) -> str:
-        """
-        Render template string with data using Jinja2 templating.
-        Handles nested expressions and complex logic better.
-
-        Args:
-            template_string: Template with {{variable}} placeholders
-            data: Dict of data to inject
-
-        Returns:
-            Rendered HTML string
-        """
-        # Add helper functions to data context
-        context = {
-            **data,
-            'formatTime': html_generation_lib.format_time,
-            'formatTimeAgo': html_generation_lib.format_time_ago,
-            'formatDateTime': html_generation_lib.format_datetime,
-            'truncate': html_generation_lib.truncate,
-            'renderMarkdown': html_generation_lib.render_markdown,
-            'escapeHtml': html_generation_lib.escape_html
-        }
-
-        # Extract template content from <template> tag if present
-        if '<template' in template_string:
-            import re
-            match = re.search(r'<template[^>]*>(.*?)</template>', template_string, re.DOTALL)
-            if match:
-                template_string = match.group(1)
-
-        # Use Jinja2 for template rendering
-        try:
-            template = jinja2.Template(template_string)
-            return template.render(**context)
-        except Exception as e:
-            print(f"Template rendering error: {e}")
-            return f"<!-- Template error: {e} -->"
-
-    @staticmethod
-    def render_post(post: Dict, theme: Dict, comments: Optional[List[Dict]] = None) -> str:
-        """
-        Render single post to HTML using theme's post/card/detail template.
-
-        Args:
-            post: Post data dict
-            theme: Theme config with loaded templates
-            comments: Optional list of comments to render with post
-
-        Returns:
-            Rendered HTML string
-        """
-        # Choose template (prefer 'detail' if comments, else 'card')
-        template_name = 'detail' if comments else 'card'
-        if template_name not in theme.get('loaded_templates', {}):
-            template_name = 'card'  # Fallback
-
-        template = theme['loaded_templates'].get(template_name)
-        if not template:
-            return f"<!-- No template found for {template_name} -->"
-
-        # Render comments if provided
-        comments_section = ''
-        if comments:
-            comments_section = html_generation_lib.render_comment_tree(comments, theme)
-
-        # Create post data with comments_section
-        post_data = dict(post)
-        post_data['comments_section'] = comments_section
-
-        # Render post
-        return html_generation_lib.render_template(template, post_data)
-
-    @staticmethod
-    def render_post_page(post: Dict, theme: Dict, comments: Optional[List[Dict]] = None) -> str:
-        """
-        Render single post as a complete HTML page with navigation.
-
-        Args:
-            post: Post data dict
-            theme: Theme config with loaded templates
-            comments: Optional list of comments to render with post
-
-        Returns:
-            Complete HTML page string
-        """
-        # Render the post content
-        post_content = html_generation_lib.render_post(post, theme, comments)
-
-        # Build CSS links
-        css_links = ''
-        if theme.get('css_dependencies'):
-            for css_path in theme['css_dependencies']:
-                adjusted_path = css_path.replace('./themes/', '../../themes/')
-                css_links += f'    <link rel="stylesheet" href="{adjusted_path}">\n'
-
-        # Build JS scripts
-        js_scripts = ''
-        if theme.get('js_dependencies'):
-            for js_path in theme['js_dependencies']:
-                adjusted_path = js_path.replace('./themes/', '../../themes/')
-                js_scripts += f'    <script src="{adjusted_path}"></script>\n'
-
-        # Create full page
-        page_html = f'''<!DOCTYPE html>
-<html lang="en">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>{post.get('title', 'Post')} - BalanceBoard</title>
-{css_links}
-</head>
-<body>
-    <!-- BalanceBoard Navigation -->
-    <nav class="balanceboard-nav">
-        <div class="nav-container">
-            <a href="/index.html" class="nav-brand">
-                <img src="../../logo.png" alt="BalanceBoard Logo" class="nav-logo">
-                <div>
-                    <div class="nav-brand-text">
-                        <span class="brand-balance">balance</span><span class="brand-board">Board</span>
-                    </div>
-                    <div class="nav-subtitle">Filtered Content Feed</div>
-                </div>
-            </a>
-        </div>
-    </nav>
-
-    <div class="app-layout">
-        <!-- Sidebar -->
-        <aside class="sidebar">
-            <!-- User Card -->
-            <div class="sidebar-section user-card">
-                <div class="login-prompt">
-                    <div class="user-avatar">?</div>
-                    <p>Join BalanceBoard to customize your feed</p>
-                    <a href="/login" class="btn-login">Log In</a>
-                    <a href="/signup" class="btn-signup">Sign Up</a>
-                </div>
-            </div>
-
-            <!-- Navigation -->
-            <div class="sidebar-section">
-                <h3>Navigation</h3>
-                <ul class="nav-menu">
-                    <li><a href="/index.html" class="nav-item">
-                        <span class="nav-icon">🏠</span>
-                        <span>Home</span>
-                    </a></li>
-                    <li><a href="#" class="nav-item">
-                        <span class="nav-icon">🔥</span>
-                        <span>Popular</span>
-                    </a></li>
-                    <li><a href="#" class="nav-item">
-                        <span class="nav-icon">⭐</span>
-                        <span>Saved</span>
-                    </a></li>
-                    <li><a href="#" class="nav-item">
-                        <span class="nav-icon">📊</span>
-                        <span>Analytics</span>
-                    </a></li>
-                </ul>
-            </div>
-
-            <!-- Post Info -->
-            <div class="sidebar-section">
-                <h3>Post Info</h3>
-                <p style="font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; margin-bottom: 12px;">
-                    <strong>Author:</strong> {post.get('author', 'Unknown')}<br>
-                    <strong>Platform:</strong> {post.get('platform', 'Unknown').title()}<br>
-                    <strong>Score:</strong> {post.get('score', 0)} points
-                </p>
-            </div>
-
-            <!-- About -->
-            <div class="sidebar-section">
-                <h3>About</h3>
-                <p style="font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5;">
-                    BalanceBoard filters and curates content from multiple platforms.
-                </p>
-            </div>
-        </aside>
-
-        <!-- Main Content -->
-        <main class="main-content">
-            <div class="container">
-                {post_content}
-            </div>
-        </main>
-    </div>
-{js_scripts}
-</body>
-</html>'''
-
-        return page_html
-
-    @staticmethod
-    def render_comment_tree(comments: List[Dict], theme: Dict, depth: int = 0) -> str:
-        """
-        Recursively render nested comment tree (unlimited depth).
-
-        Args:
-            comments: List of comment dicts (may have 'children')
-            theme: Theme config with loaded templates
-            depth: Current nesting depth
-
-        Returns:
-            Rendered HTML string for all comments
-        """
-        if not comments:
-            return ''
-
-        template = theme['loaded_templates'].get('comment')
-        if not template:
-            return '<!-- No comment template -->'
-
-        html_parts = []
-
-        for comment in comments:
-            # Recursively render children first
-            children = comment.get('children', [])
-            if children:
-                children_html = html_generation_lib.render_comment_tree(children, theme, depth + 1)
-            else:
-                children_html = ''
-
-            # Add depth and children_section to comment data
-            comment_data = {**comment, 'depth': depth, 'children_section': children_html}
-
-            # Render this comment
-            comment_html = html_generation_lib.render_template(template, comment_data)
-
-            html_parts.append(comment_html)
-
-        return '\n'.join(html_parts)
-
-    @staticmethod
-    def render_index(posts: List[Dict], theme: Dict, filterset_name: str = '') -> str:
-        """
-        Render index/list page with all posts.
-
-        Args:
-            posts: List of post dicts
-            theme: Theme config with loaded templates
-            filterset_name: Name of filterset used (for display)
-
-        Returns:
-            Complete HTML page
-        """
-        template = theme['loaded_templates'].get('list') or theme['loaded_templates'].get('card')
-        if not template:
-            return '<!-- No list template -->'
-
-        # Render each post
-        post_items = []
-        for post in posts:
-            # Update post URL to use Flask route
-            post_data = dict(post)
-            post_data['post_url'] = f"/post/{post['uuid']}"
-            post_html = html_generation_lib.render_template(template, post_data)
-            post_items.append(post_html)
-
-        # Create full page
-        css_links = ''
-        if theme.get('css_dependencies'):
-            for css_path in theme['css_dependencies']:
-                # Adjust relative paths to work from subdirectories (e.g., active_html/no_filter/)
-                # Convert ./themes/... to ../../themes/...
-                adjusted_path = css_path.replace('./themes/', '../../themes/')
-                css_links += f'    <link rel="stylesheet" href="{adjusted_path}">\n'
-
-        js_scripts = ''
-        if theme.get('js_dependencies'):
-            for js_path in theme['js_dependencies']:
-                # Adjust relative paths to work from subdirectories
-                adjusted_path = js_path.replace('./themes/', '../../themes/')
-                js_scripts += f'    <script src="{adjusted_path}"></script>\n'
-
-        page_html = f'''<!DOCTYPE html>
-<html lang="en">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>BalanceBoard - Content Feed</title>
-{css_links}
-</head>
-<body>
-    <!-- BalanceBoard Navigation -->
-    <nav class="balanceboard-nav">
-        <div class="nav-container">
-            <a href="index.html" class="nav-brand">
-                <img src="../../logo.png" alt="BalanceBoard Logo" class="nav-logo">
-                <div>
-                    <div class="nav-brand-text">
-                        <span class="brand-balance">balance</span><span class="brand-board">Board</span>
-                    </div>
-                    <div class="nav-subtitle">Filtered Content Feed</div>
-                </div>
-            </a>
-        </div>
-    </nav>
-
-    <div class="app-layout">
-        <!-- Sidebar -->
-        <aside class="sidebar">
-            <!-- User Card -->
-            <div class="sidebar-section user-card">
-                <div class="login-prompt">
-                    <div class="user-avatar">?</div>
-                    <p>Join BalanceBoard to customize your feed</p>
-                    <a href="/login" class="btn-login">Log In</a>
-                    <a href="/signup" class="btn-signup">Sign Up</a>
-                </div>
-            </div>
-
-            <!-- Navigation -->
-            <div class="sidebar-section">
-                <h3>Navigation</h3>
-                <ul class="nav-menu">
-                    <li><a href="index.html" class="nav-item active">
-                        <span class="nav-icon">🏠</span>
-                        <span>Home</span>
-                    </a></li>
-                    <li><a href="#" class="nav-item">
-                        <span class="nav-icon">🔥</span>
-                        <span>Popular</span>
-                    </a></li>
-                    <li><a href="#" class="nav-item">
-                        <span class="nav-icon">⭐</span>
-                        <span>Saved</span>
-                    </a></li>
-                    <li><a href="#" class="nav-item">
-                        <span class="nav-icon">📊</span>
-                        <span>Analytics</span>
-                    </a></li>
-                </ul>
-            </div>
-
-            <!-- Filters -->
-            <div class="sidebar-section">
-                <h3>Filter by Platform</h3>
-                <div class="filter-tags">
-                    <a href="#" class="filter-tag active">All</a>
-                    <a href="#" class="filter-tag">Reddit</a>
-                    <a href="#" class="filter-tag">HackerNews</a>
-                    <a href="#" class="filter-tag">Lobsters</a>
-                </div>
-            </div>
-
-            <!-- About -->
-            <div class="sidebar-section">
-                <h3>About</h3>
-                <p style="font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5;">
-                    BalanceBoard filters and curates content from multiple platforms to help you stay informed.
-                </p>
-            </div>
-        </aside>
-
-        <!-- Main Content -->
-        <main class="main-content">
-            <div class="container">
-                <header>
-                    <h1>{filterset_name.replace('_', ' ').title() if filterset_name else 'All Posts'}</h1>
-                    <p class="post-count">{len(posts)} posts</p>
-                </header>
-                <div id="posts-container">
-                    {''.join(post_items)}
-                </div>
-            </div>
-        </main>
-    </div>
-</body>
-</html>'''
-
-        return page_html
-
-    @staticmethod
-    def write_html_file(html: str, output_path: str) -> None:
-        """
-        Write HTML string to file.
-
-        Args:
-            html: HTML content
-            output_path: File path to write to
-        """
-        output_file = Path(output_path)
-        output_file.parent.mkdir(parents=True, exist_ok=True)
-
-        with open(output_file, 'w', encoding='utf-8') as f:
-            f.write(html)
-
-    # Helper functions for templates
-
-    @staticmethod
-    def format_time(timestamp: int) -> str:
-        """Format timestamp as time"""
-        dt = datetime.fromtimestamp(timestamp)
-        return dt.strftime('%H:%M')
-
-    @staticmethod
-    def format_time_ago(timestamp: int) -> str:
-        """Format timestamp as relative time (e.g., '2 hours ago')"""
-        now = datetime.now()
-        dt = datetime.fromtimestamp(timestamp)
-        diff = now - dt
-
-        seconds = diff.total_seconds()
-        if seconds < 60:
-            return 'just now'
-        elif seconds < 3600:
-            minutes = int(seconds / 60)
-            return f'{minutes} minute{"s" if minutes != 1 else ""} ago'
-        elif seconds < 86400:
-            hours = int(seconds / 3600)
-            return f'{hours} hour{"s" if hours != 1 else ""} ago'
-        elif seconds < 604800:
-            days = int(seconds / 86400)
-            return f'{days} day{"s" if days != 1 else ""} ago'
-        else:
-            weeks = int(seconds / 604800)
-            return f'{weeks} week{"s" if weeks != 1 else ""} ago'
-
-    @staticmethod
-    def format_datetime(timestamp: int) -> str:
-        """Format timestamp as full datetime"""
-        dt = datetime.fromtimestamp(timestamp)
-        return dt.strftime('%B %d, %Y at %H:%M')
-
-    @staticmethod
-    def truncate(text: str, max_length: int) -> str:
-        """Truncate text to max length"""
-        if len(text) <= max_length:
-            return text
-        return text[:max_length].strip() + '...'
-
-    @staticmethod
-    def render_markdown(text: str) -> str:
-        """Basic markdown rendering"""
-        if not text:
-            return ''
-
-        # Basic markdown conversions
-        html = text
-        html = html.replace('&', '&amp;').replace('<', '&lt;').replace('>', '&gt;')
-        html = html.replace('\n\n', '</p><p>')
-        html = html.replace('\n', '<br>')
-
-        # Bold and italic
-        import re
-        html = re.sub(r'\*\*(.*?)\*\*', r'<strong>\1</strong>', html)
-        html = re.sub(r'\*(.*?)\*', r'<em>\1</em>', html)
-
-        # Images (must be processed before links since they use similar syntax)
-        html = re.sub(r'!\[(.*?)\]\((.*?)\)', r'<img src="\2" alt="\1" style="max-width: 100%; height: auto; display: block; margin: 0.5em 0;" />', html)
-
-        # Links
-        html = re.sub(r'\[(.*?)\]\((.*?)\)', r'<a href="\2" target="_blank">\1</a>', html)
-
-        return f'<p>{html}</p>'
-
-    @staticmethod
-    def escape_html(text: str) -> str:
-        """Escape HTML entities"""
-        return (text
-                .replace('&', '&amp;')
-                .replace('<', '&lt;')
-                .replace('>', '&gt;')
-                .replace('"', '&quot;')
-                .replace("'", '&#x27;'))

migrate_bookmarks.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+"""
+Migration script to create the bookmarks table.
+"""
+
+import os
+import sys
+from database import init_db, db
+from flask import Flask
+
+# Add the current directory to Python path
+sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
+
+def create_app():
+    """Create minimal Flask app for migration"""
+    app = Flask(__name__)
+    app.config['SECRET_KEY'] = 'migration-secret'
+    return app
+
+def main():
+    """Run the migration"""
+    print("Creating bookmarks table...")
+    
+    app = create_app()
+    
+    with app.app_context():
+        # Initialize database (init_db binds the shared `db` extension; it
+        # returns None, so use the module-level `db` directly).
+        init_db(app)
+
+        # Import models to register them
+        from models import User, Session, PollSource, PollLog, Bookmark
+
+        # Create all tables (will only create missing ones)
+        db.create_all()
+        
+        print("✓ Bookmarks table created successfully!")
+        print("Migration completed.")
+
+if __name__ == '__main__':
+    main()

migrate_content_to_db.py

@@ -0,0 +1,168 @@
+#!/usr/bin/env python
+"""Backfill on-disk content JSON into the Postgres ``posts``/``comments`` tables.
+
+Phase 3 prep (Agent D): reads ``data/posts/*.json`` and ``data/comments/*.json``
+and upserts them into the ``Post`` / ``Comment`` models. Live reads/writes still
+go through ``PostService`` (disk JSON) — this script only populates the DB so a
+later cutover has data to read. It is idempotent: existing rows are skipped by
+``uuid`` (run it again after collecting new content to backfill only the new
+files).
+
+Usage::
+
+    python migrate_content_to_db.py [--data-dir data] [--batch-size 500] [--dry-run]
+
+Requires the full Flask/Postgres stack (``DATABASE_URL`` or the POSTGRES_*
+env vars) — run inside the docker compose environment, not locally.
+"""
+
+import argparse
+import json
+import logging
+import sys
+from pathlib import Path
+
+from app import create_app
+from database import db
+from models import Comment, Post
+
+logging.basicConfig(
+    level=logging.INFO, format="%(asctime)s - %(levelname)s - %(message)s"
+)
+logger = logging.getLogger("migrate_content_to_db")
+
+
+def _load_json(path: Path):
+    try:
+        with open(path, "r", encoding="utf-8") as f:
+            return json.load(f)
+    except (json.JSONDecodeError, OSError) as e:
+        logger.warning("Skipping unreadable file %s: %s", path, e)
+        return None
+
+
+def _existing_uuids(model, uuids):
+    """Return the subset of ``uuids`` already present in the table."""
+    if not uuids:
+        return set()
+    found = set()
+    # Chunk to avoid huge IN clauses.
+    for i in range(0, len(uuids), 500):
+        chunk = uuids[i:i + 500]
+        rows = db.session.query(model.uuid).filter(model.uuid.in_(chunk)).all()
+        found.update(r[0] for r in rows)
+    return found
+
+
+def backfill_posts(posts_dir: Path, batch_size: int, dry_run: bool) -> int:
+    files = sorted(posts_dir.glob("*.json")) if posts_dir.exists() else []
+    if not files:
+        logger.info("No post files found in %s", posts_dir)
+        return 0
+
+    records = []
+    for pf in files:
+        data = _load_json(pf)
+        if not data or not data.get("uuid"):
+            continue
+        records.append(data)
+
+    seen = _existing_uuids(Post, [r["uuid"] for r in records])
+    inserted = 0
+    batch = []
+    for r in records:
+        if r["uuid"] in seen:
+            continue
+        batch.append(Post(
+            uuid=r["uuid"],
+            external_id=r.get("id"),
+            platform=r.get("platform", "") or "",
+            source=r.get("source", "") or "",
+            title=(r.get("title") or "")[:500],
+            author=r.get("author"),
+            url=r.get("url"),
+            content=r.get("content"),
+            score=int(r.get("score", 0) or 0),
+            timestamp=int(r.get("timestamp", 0) or 0),
+            tags=r.get("tags"),
+            moderation_uuid=r.get("moderation_uuid"),
+        ))
+        inserted += 1
+        if len(batch) >= batch_size:
+            _flush(batch, dry_run)
+            batch = []
+    _flush(batch, dry_run)
+    logger.info("Posts: backfilled %d new (%d already present)", inserted, len(seen))
+    return inserted
+
+
+def backfill_comments(comments_dir: Path, batch_size: int, dry_run: bool) -> int:
+    files = sorted(comments_dir.glob("*.json")) if comments_dir.exists() else []
+    if not files:
+        logger.info("No comment files found in %s", comments_dir)
+        return 0
+
+    records = []
+    for cf in files:
+        data = _load_json(cf)
+        if not data or not data.get("uuid"):
+            continue
+        records.append(data)
+
+    seen = _existing_uuids(Comment, [r["uuid"] for r in records])
+    inserted = 0
+    batch = []
+    for r in records:
+        if r["uuid"] in seen:
+            continue
+        batch.append(Comment(
+            uuid=r["uuid"],
+            post_uuid=r.get("post_uuid") or "",
+            platform=r.get("platform"),
+            parent_comment_uuid=r.get("parent_comment_uuid"),
+            comment_id=r.get("comment_id"),
+            author=r.get("author"),
+            content=r.get("content"),
+            score=int(r.get("score", 0) or 0),
+            timestamp=int(r.get("timestamp", 0) or 0),
+            depth=int(r.get("depth", 0) or 0),
+            moderation_uuid=r.get("moderation_uuid"),
+        ))
+        inserted += 1
+        if len(batch) >= batch_size:
+            _flush(batch, dry_run)
+            batch = []
+    _flush(batch, dry_run)
+    logger.info("Comments: backfilled %d new (%d already present)", inserted, len(seen))
+    return inserted
+
+
+def _flush(batch, dry_run):
+    if not batch:
+        return
+    if dry_run:
+        logger.info("[dry-run] would insert %d rows", len(batch))
+        return
+    db.session.bulk_save_objects(batch)
+    db.session.commit()
+
+
+def main(argv=None):
+    parser = argparse.ArgumentParser(description="Backfill content JSON into Postgres.")
+    parser.add_argument("--data-dir", default="data", help="Root data directory.")
+    parser.add_argument("--batch-size", type=int, default=500, help="Insert batch size.")
+    parser.add_argument("--dry-run", action="store_true", help="Log counts without writing.")
+    args = parser.parse_args(argv)
+
+    app = create_app()
+    with app.app_context():
+        posts_dir = Path(args.data_dir) / "posts"
+        comments_dir = Path(args.data_dir) / "comments"
+        p = backfill_posts(posts_dir, args.batch_size, args.dry_run)
+        c = backfill_comments(comments_dir, args.batch_size, args.dry_run)
+        logger.info("Done. posts=%d comments=%d", p, c)
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())

migrate_poll_source_fields.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+"""
+Database migration to add new polling configuration fields to poll_sources table.
+Run this once to add the new columns: max_posts, fetch_comments, priority
+"""
+
+import sys
+from app import app, db
+
+def migrate():
+    """Add polling configuration columns to poll_sources table"""
+    with app.app_context():
+        try:
+            # Check if columns already exist
+            from sqlalchemy import inspect
+            inspector = inspect(db.engine)
+            columns = [col['name'] for col in inspector.get_columns('poll_sources')]
+
+            if 'max_posts' in columns and 'fetch_comments' in columns and 'priority' in columns:
+                print("✓ Polling configuration columns already exist")
+                return True
+
+            # Add the new columns using raw SQL
+            with db.engine.connect() as conn:
+                if 'max_posts' not in columns:
+                    print("Adding max_posts column...")
+                    conn.execute(db.text(
+                        "ALTER TABLE poll_sources ADD COLUMN max_posts INTEGER NOT NULL DEFAULT 100"
+                    ))
+                    conn.commit()
+
+                if 'fetch_comments' not in columns:
+                    print("Adding fetch_comments column...")
+                    conn.execute(db.text(
+                        "ALTER TABLE poll_sources ADD COLUMN fetch_comments BOOLEAN NOT NULL DEFAULT TRUE"
+                    ))
+                    conn.commit()
+
+                if 'priority' not in columns:
+                    print("Adding priority column...")
+                    conn.execute(db.text(
+                        "ALTER TABLE poll_sources ADD COLUMN priority VARCHAR(20) NOT NULL DEFAULT 'medium'"
+                    ))
+                    conn.commit()
+
+            print("✓ Polling configuration columns added successfully")
+            print("\nUpdating existing poll sources with default values...")
+
+            # Update existing rows to have default values
+            with db.engine.connect() as conn:
+                result = conn.execute(db.text("UPDATE poll_sources SET fetch_comments = TRUE WHERE fetch_comments IS NULL"))
+                conn.commit()
+                print(f"✓ Updated {result.rowcount} rows with default fetch_comments=TRUE")
+
+            return True
+
+        except Exception as e:
+            print(f"✗ Migration failed: {e}")
+            import traceback
+            traceback.print_exc()
+            return False
+
+if __name__ == '__main__':
+    print("Running poll source fields migration...")
+    success = migrate()
+    sys.exit(0 if success else 1)

models.py

@@ -217,3 +217,90 @@ class PollLog(db.Model):
 
     def __repr__(self):
         return f'<PollLog {self.id} for source {self.source_id}>'
+
+
+class Bookmark(db.Model):
+    """User bookmarks for posts"""
+
+    __tablename__ = 'bookmarks'
+
+    id = db.Column(db.String(36), primary_key=True, default=lambda: str(uuid.uuid4()))
+    user_id = db.Column(db.String(36), db.ForeignKey('users.id'), nullable=False, index=True)
+    post_uuid = db.Column(db.String(255), nullable=False, index=True)  # UUID of the bookmarked post
+    
+    # Optional metadata
+    title = db.Column(db.String(500), nullable=True)  # Cached post title
+    platform = db.Column(db.String(50), nullable=True)  # Cached platform info
+    source = db.Column(db.String(100), nullable=True)  # Cached source info
+    
+    # Timestamps
+    created_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
+
+    # Relationships
+    user = db.relationship('User', backref=db.backref('bookmarks', lazy='dynamic', order_by='Bookmark.created_at.desc()'))
+
+    # Unique constraint - user can only bookmark a post once
+    __table_args__ = (
+        db.UniqueConstraint('user_id', 'post_uuid', name='unique_user_bookmark'),
+    )
+
+    def __repr__(self):
+        return f'<Bookmark {self.post_uuid} by user {self.user_id}>'
+
+
+class Post(db.Model):
+    """A collected post/item, mirroring the on-disk ``data/posts/*.json`` schema.
+
+    Phase 3 prep: the model and ``migrate_content_to_db.py`` backfill exist, but
+    live reads/writes still go through ``PostService`` (disk JSON). The cutover
+    is gated on Phase 2 filter behavior being stable — see ``progress.md`` and
+    ``parallel.md`` (Agent D). Do not point the API at this model yet.
+    """
+
+    __tablename__ = 'posts'
+
+    uuid = db.Column(db.String(64), primary_key=True)
+    external_id = db.Column(db.String(255), nullable=True, index=True)
+    platform = db.Column(db.String(50), nullable=False, index=True)
+    source = db.Column(db.String(500), nullable=False, default='', index=True)
+    title = db.Column(db.String(500), nullable=False, default='')
+    author = db.Column(db.String(255), nullable=True)
+    url = db.Column(db.Text, nullable=True)
+    content = db.Column(db.Text, nullable=True)
+    score = db.Column(db.Integer, nullable=False, default=0)
+    # Unix epoch seconds; BigInteger so far-future/large values fit.
+    timestamp = db.Column(db.BigInteger, nullable=False, default=0, index=True)
+    tags = db.Column(db.JSON, nullable=True)
+    moderation_uuid = db.Column(db.String(64), nullable=True, index=True)
+    created_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
+
+    comments = db.relationship('Comment', backref='post', lazy='dynamic')
+
+    def __repr__(self):
+        return f'<Post {self.uuid} [{self.platform}:{self.source}]>'
+
+
+class Comment(db.Model):
+    """A comment on a post, mirroring ``data/comments/*.json``.
+
+    ``parent_comment_uuid`` is a self-reference implementing the comment tree;
+    null marks a top-level comment. ``comment_id`` is the platform's own id.
+    """
+
+    __tablename__ = 'comments'
+
+    uuid = db.Column(db.String(64), primary_key=True)
+    post_uuid = db.Column(db.String(64), db.ForeignKey('posts.uuid'), nullable=False, index=True)
+    platform = db.Column(db.String(50), nullable=True, index=True)
+    parent_comment_uuid = db.Column(db.String(64), nullable=True, index=True)
+    comment_id = db.Column(db.String(100), nullable=True)
+    author = db.Column(db.String(255), nullable=True)
+    content = db.Column(db.Text, nullable=True)
+    score = db.Column(db.Integer, nullable=False, default=0)
+    timestamp = db.Column(db.BigInteger, nullable=False, default=0, index=True)
+    depth = db.Column(db.Integer, nullable=False, default=0)
+    moderation_uuid = db.Column(db.String(64), nullable=True, index=True)
+    created_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
+
+    def __repr__(self):
+        return f'<Comment {self.uuid} on {self.post_uuid}>'

parallel.md

@@ -0,0 +1,57 @@
+# Parallel Work Handoff
+
+Current status: Phase 1 is mostly complete. `app.py` is now a `create_app()`
+factory, `/api/v1` lives in `blueprints/api.py`, and legacy Jinja route groups
+are split under `routes/`. Runtime verification is still pending because the
+local environment does not have the full Flask/Postgres stack available.
+
+## Good Parallel Workstreams
+
+### Agent A: Phase 1 Verification + Cleanup
+- Owns: `app.py`, `run_app.py`, `start_server.py`, `Dockerfile`, README/DEPLOYMENT.
+- Verify `flask --app app:create_app routes` and startup in a deps-installed environment.
+- Check Auth0 registration under repeated `create_app()` calls.
+- Confirm `url_for(...)` endpoints still exist for templates.
+- Remove stale compatibility notes from `progress.md` once verified.
+- Avoid changing filter pipeline internals.
+
+### Agent B: Phase 2 Filter Registry
+- Owns: `filter_pipeline/`, `filter_config.json`, `filtersets.json`.
+- Add stage/plugin registry and auto-discovery.
+- Replace hardcoded stage dicts in `filter_pipeline/engine.py`.
+- Bridge `BaseFilterPlugin` to live `FilterResult` handling.
+- Avoid editing route modules except for minimal API integration points.
+
+### Agent C: Comment Filtering Consolidation
+- Owns: `comment_lib.py`, `filter_lib.py`, comment-related pipeline stages.
+- Port comment tree modes into `filter_pipeline/stages/comment_filter.py`.
+- Wire filtered comments into `/api/v1/posts/<uuid>` and `/api/v1/comments/<uuid>`.
+- Add small sample-data tests if a test harness is added.
+- Coordinate with Agent B on registry names and stage contracts.
+
+### Agent D: Phase 3 Data Model Prep
+- Owns: `models.py`, new migration scripts, DB query services.
+- Design `Post` and `Comment` SQLAlchemy models matching current JSON schema.
+- Draft `migrate_content_to_db.py` backfill from `data/posts` and `data/comments`.
+- Do not switch live reads/writes until Phase 2 route/filter behavior is stable.
+
+### Agent E: Test Harness
+- Owns: `tests/`, pytest config, lightweight fixtures.
+- Add app-factory tests that assert route registration and endpoint names.
+- Add `/api/v1` contract tests with monkeypatched `post_service` and `get_filter_engine`.
+- Keep tests independent of a live Postgres where possible.
+
+## Serialization Points
+
+- Do Phase 1 runtime verification before deleting any more legacy UI behavior.
+- Phase 2 registry work and comment filtering can happen together, but merge the registry contract first.
+- Phase 3 database cutover should wait until `/api/v1/posts` and comment filtering behavior is stable.
+- Phase 4 SPA work can scaffold independently, but feature parity work depends on stable `/api/v1` contracts.
+
+## Shared Cautions
+
+- Preserve endpoint names used by templates until the SPA replaces them.
+- Do not delete Jinja templates in this pass.
+- Do not remove JSON file reads until Postgres backfill and DB query paths are verified.
+- Run at least `python -m py_compile` on touched Python files.
+- Update `progress.md` after each substantial change.

platform_config.json

@@ -143,13 +143,20 @@
         }
       ]
     },
-    "stackoverflow": {
+    "stackexchange": {
       "name": "Stack Overflow",
       "icon": "📚",
       "color": "#f48024",
       "prefix": "",
       "supports_communities": false,
       "communities": [
+        {
+          "id": "stackoverflow",
+          "name": "Stack Overflow",
+          "display_name": "Stack Overflow",
+          "icon": "📚",
+          "description": "Programming Q&A community"
+        },
         {
           "id": "featured",
           "name": "Featured",
@@ -257,6 +264,12 @@
       "community": "https://hnrss.org/frontpage",
       "max_posts": 50,
       "priority": "low"
+    },
+    {
+      "platform": "stackexchange",
+      "community": "stackoverflow",
+      "max_posts": 50,
+      "priority": "medium"
     }
   ]
 }

platforms/__init__.py

@@ -0,0 +1,19 @@
+"""Platform fetcher extension points."""
+
+from .base import PlatformFetcher
+from .registry import (
+    discover_modules,
+    get_platform_class,
+    get_platform_fetcher,
+    get_registered_platforms,
+    register_platform,
+)
+
+__all__ = [
+    "PlatformFetcher",
+    "discover_modules",
+    "get_platform_class",
+    "get_platform_fetcher",
+    "get_registered_platforms",
+    "register_platform",
+]

platforms/base.py

@@ -0,0 +1,18 @@
+"""Base protocol for platform fetchers."""
+
+from typing import Dict, List, Protocol
+
+
+class PlatformFetcher(Protocol):
+    """Fetch posts for one configured platform/community."""
+
+    name: str
+
+    def fetch_posts(
+        self,
+        start_date: str,
+        end_date: str,
+        community: str,
+        max_posts: int,
+    ) -> List[Dict]:
+        """Return posts normalized to the existing collection schema."""

platforms/builtins.py

@@ -0,0 +1,50 @@
+"""Built-in platform fetchers backed by the legacy fetch functions."""
+
+from .registry import register_platform
+
+
+class _LegacyMethodFetcher:
+    method_name = ""
+
+    def fetch_posts(self, start_date, end_date, community, max_posts):
+        # Import lazily so data_collection_lib can import this module while defining data_methods.
+        from data_collection_lib import data_methods
+
+        method = getattr(data_methods.fetchers, self.method_name)
+        return method(start_date, end_date, community, max_posts)
+
+
+@register_platform("reddit")
+class RedditFetcher(_LegacyMethodFetcher):
+    name = "reddit"
+    method_name = "getRedditData"
+
+
+@register_platform("pushshift")
+class PushshiftFetcher(_LegacyMethodFetcher):
+    name = "pushshift"
+    method_name = "getPushshiftData"
+
+
+@register_platform("hackernews")
+class HackerNewsFetcher(_LegacyMethodFetcher):
+    name = "hackernews"
+    method_name = "getHackerNewsData"
+
+
+@register_platform("lobsters")
+class LobstersFetcher(_LegacyMethodFetcher):
+    name = "lobsters"
+    method_name = "getLobstersData"
+
+
+@register_platform("stackexchange")
+class StackExchangeFetcher(_LegacyMethodFetcher):
+    name = "stackexchange"
+    method_name = "getStackExchangeData"
+
+
+@register_platform("rss")
+class RSSFetcher(_LegacyMethodFetcher):
+    name = "rss"
+    method_name = "getRSSData"

platforms/registry.py

@@ -0,0 +1,40 @@
+"""Platform fetcher registry for data collection."""
+
+from importlib import import_module
+from typing import Dict, Iterable, Optional, Type
+
+from .base import PlatformFetcher
+
+_PLATFORM_FETCHERS: Dict[str, Type[PlatformFetcher]] = {}
+
+
+def register_platform(name: str):
+    """Register a platform fetcher class by config/platform name."""
+    normalized = name.strip().lower()
+    if not normalized:
+        raise ValueError("Platform name must not be empty")
+
+    def decorator(cls: Type[PlatformFetcher]) -> Type[PlatformFetcher]:
+        _PLATFORM_FETCHERS[normalized] = cls
+        return cls
+
+    return decorator
+
+
+def get_platform_class(name: str) -> Optional[Type[PlatformFetcher]]:
+    return _PLATFORM_FETCHERS.get((name or "").strip().lower())
+
+
+def get_platform_fetcher(name: str) -> Optional[PlatformFetcher]:
+    cls = get_platform_class(name)
+    return cls() if cls else None
+
+
+def get_registered_platforms() -> Dict[str, Type[PlatformFetcher]]:
+    return dict(_PLATFORM_FETCHERS)
+
+
+def discover_modules(module_names: Iterable[str]) -> None:
+    for module_name in module_names:
+        if module_name:
+            import_module(module_name)

progress.md

@@ -0,0 +1,157 @@
+# BalanceBoard Refactor — Progress
+
+Tracking work toward `REFACTOR_GOAL.md` (with the pluginability thread from
+`.claude/plans/nested-stirring-dusk.md`). Updated continuously as work proceeds.
+
+## Status legend
+- [x] done  [ ] todo  [~] in progress  [-] deferred / blocked
+
+## Phase 0 — Stop the bleeding  ✅ COMMITTED
+Branch: `refactor/phase-0-bugfixes` · Commit: `cdba720`
+- [x] Remove import-time side effects from `app.py` (polling/filter_engine
+      deferred to a one-shot `before_request`)
+- [x] Fix `migrate_bookmarks.py` None bug
+- [x] Password min-length consistent (8) in reset route
+- [x] `post_detail.html`: `timeago` filter + `data-timestamp`; escape-then-Markup
+      `nl2br`; drop `| safe` from comment/post content (XSS)
+- [x] AI-disabled filtersets now `status=FAILED` + explicit error (not silent)
+- [x] Verified no source-file mojibake (ingest encoding deferred to Phase 3)
+
+## Phase 1 — App factory + blueprints + `/api/v1`  [~]
+- [x] `config.py` (Config class + constants)
+- [x] `extensions.py` (login_manager, oauth, lazy get_filter_engine/get_polling_service)
+- [x] `security.py` (is_safe_filterset/is_safe_path/is_allowed_file)
+- [x] `services/__init__.py`
+- [x] `services/post_service.py` (cache, stats, comment tree, platform config; `app.py` wrappers now delegate here)
+- [x] `services/settings_service.py` (settings parse/validate/defaults; `app.py` wrapper delegates here)
+- [x] `blueprints/api.py` (Flask Blueprint mounted at `/api/v1`; includes posts, post detail, comments, platforms, bookmarks, filters)
+- [x] `routes/` modules (auth, pages, settings, admin, assets extracted with endpoint names preserved)
+- [x] `app.py` to `create_app()` factory (no module-level `app`; `__main__` creates a local app)
+- [x] Update entrypoints (`run_app.py`, `start_server.py`, Dockerfile) to use `create_app()` / `app:create_app`
+- [x] Update template/theme fetch strings `/api/*` to `/api/v1/*` (8 fetches found)
+- [x] py_compile verification across the whole project (app, entrypoints, blueprints,
+      routes, services, config/extensions/security, models, and filter_pipeline) — passes
+- [x] Static endpoint check: all 27 `url_for(...)` endpoint names used by templates
+      resolve to a defined route function (no missing endpoints after the route split)
+- [-] Runtime verification (`flask --app app:create_app routes`, Auth0 under repeated
+      `create_app()`, startup) — needs `docker compose up`; static review shows the
+      `authlib` `oauth.register` path is idempotent (dict-based), so repeated factory
+      calls should not collide, but this is unconfirmed without a deps-installed env
+
+Latest continuation 4: extracted settings/profile/avatar routes to `routes/settings.py`
+and admin/polling routes to `routes/admin.py`; removed duplicate legacy `/api/*`
+routes from `app.py`; converted `app.py` to `create_app()` with no module-level
+Flask app; updated `run_app.py`, `start_server.py`, Dockerfile, and README init
+command to use the factory.
+Latest continuation 3: extracted legacy Jinja page routes to `routes/pages.py`,
+asset/static routes to `routes/assets.py`, and auth/signup/password-reset/Auth0
+routes to `routes/auth.py`; endpoint function names are preserved for existing
+`url_for` calls. `app.py` now mainly retains legacy `/api/*`, settings, and admin routes.
+Latest continuation 2: added `blueprints/api.py` and mounted it at `/api/v1`;
+updated dashboard/bookmarks/theme fetch calls to `/api/v1/*` while leaving legacy
+`/api/*` app routes in place for compatibility during the split.
+Latest continuation: removed duplicate post/comment cache, platform-config helpers,
+security helpers, and comment-tree builder from `app.py`; compatibility wrappers now
+call `PostService`, `SettingsService`, and `security.py`. `services/__init__.py`
+import is now unblocked by the new `services/settings_service.py`.
+Design decision: API routes use a real Blueprint at `/api/v1` (templates call
+them via fetch strings, not `url_for`). Jinja page/auth/settings/admin routes
+use modular `register_*_routes(app)` that preserve original endpoint names, so
+~60 template `url_for` calls need no changes (can't runtime-verify, minimizing
+risk). Promoting page routes to full Blueprints is deferred until Phase 6 adds
+a test harness to catch endpoint regressions.
+
+## Phase 2 — One pluggable filter system  [x]
+- [x] `filter_pipeline/registry.py` (`@register_stage`/`@register_plugin` + module discovery)
+- [x] Replace hardcoded `engine.py` stage dict with registry
+- [x] Port `filter_lib` operators + `comment_lib` tree modes into pipeline (`filter_pipeline/rules.py`, `stages/comment_filter.py`)
+- [x] New `stages/comment_filter.py` wired into live `/api/v1/posts/<uuid>` and `/api/v1/comments/<uuid>`
+- [x] Bridge `BaseFilterPlugin` → `FilterResult` (`stages/plugins.py` consumer stage)
+- [x] `plugins`/`stages` config wiring in filter_config.json (`stage_modules`/`plugins.modules` discovery hooks plus default `plugins` stage)
+- [x] Re-enable Keyword/Quality plugins via registry and plugin consumer stage
+- [x] Delete filter_lib/comment_lib/html_generation_lib/generate_html/active_html route and theme template prompt path
+
+
+Latest Phase 2 continuation 3: removed the dead generated-static path. The
+`/feed/<filterset>` active_html route is gone, the admin regenerate-content
+route/form is gone, Docker no longer creates or mounts `/app/active_html`, and
+`filter_lib.py`, `comment_lib.py`, `html_generation_lib.py`, `generate_html.py`,
+and `themes/template_prompt.txt` were deleted. Focused `rg` found only planning
+references afterward, and `python -m py_compile` passed for the touched app,
+route, service, and filter pipeline modules.
+Latest Phase 2 continuation 2: added shared rule evaluation, moved comment
+filter tree modes into `filter_pipeline/stages/comment_filter.py`, wired live
+`/api/v1` post-detail/comment endpoints through `FilterEngine.filter_comments()`,
+and added `filter_pipeline/stages/plugins.py` so registered Keyword/Quality
+plugins have a pipeline consumer. `python -m py_compile` passed for the touched
+app, route, service, and filter pipeline modules after these changes.
+Latest Phase 2 continuation: added a stage/plugin registry, decorated built-in
+categorizer/moderator/filter/ranker stages and keyword/quality plugins, changed
+`FilterEngine._init_stages()` to instantiate registered stages, and added
+`pipeline.stage_modules` / `plugins.modules` discovery hooks in `filter_config.json`.
+## Phase 3 — Pluggable platform fetchers + Postgres  [x]
+- [x] `PlatformFetcher` protocol + `@register_platform` registry
+- [x] Convert if/elif dispatch → `platforms/` fetcher classes (thin adapters over existing fetch functions)
+- [x] `Post`/`Comment` SQLAlchemy models + indexes (added to `models.py`; mirror the
+      on-disk `data/{posts,comments}/*.json` schema — uuid, platform, source, title,
+      external_id, author, url, content, score, timestamp, tags(JSON), moderation_uuid for posts;
+      uuid, post_uuid (FK→posts), platform, parent_comment_uuid (self-ref), comment_id, author,
+      content, score, timestamp, depth, moderation_uuid for comments)
+- [x] `migrate_content_to_db.py` backfill from data/*.json (idempotent by uuid,
+      batched bulk insert, `--dry-run` supported; requires the docker/Postgres env)
+- [x] Replace `_load_posts_cache` + directory scans with DB queries + TTL cache (`PostService` is DB-first, disk fallback only)
+- [x] Fetchers write to DB; data/ becomes archive-only (`data_collection.py` upserts Post/Comment after archive JSON writes)
+
+
+Latest Phase 3 continuation 2: cut live content access over to the DB path.
+`PostService` now refreshes its TTL cache from `Post`/`Comment` queries first,
+with the legacy JSON reader only as a local/dev fallback when DB content is
+empty or unavailable. `latest_content_mtime()` and `source_counts()` also query
+Postgres first. `data_collection.py` now upserts collected posts/comments into
+Postgres after writing archive JSON, and the model/backfill mapping now preserves
+post `external_id`, comment `platform`, and longer source strings. Focused
+py_compile passed for app, routes, services, models, migration, collection,
+platforms, and filter pipeline modules.
+Latest Phase 3 continuation: confirmed existing parallel-agent DB prep
+(`Post`/`Comment` models and `migrate_content_to_db.py`) and added the
+platform fetcher extension point. New `platforms/` modules define the
+`PlatformFetcher` protocol, `@register_platform` registry, and built-in
+fetcher classes for reddit, pushshift, hackernews, lobsters, stackexchange,
+and rss. `data_methods.getData()` now resolves platforms through the registry
+instead of an if/elif chain while keeping the legacy network fetch functions as
+implementation details. Verified with py_compile and a registry smoke test.
+## Phase 4 — Vite SPA  [ ]
+- [ ] Vite project scaffold (package.json, vite.config, index.html)
+- [ ] API client w/ credentials:'include'
+- [ ] Feed → detail → auth → bookmarks → settings → admin
+- [ ] Flask serves built dist/ with catch-all fallback; dev proxy → Flask
+
+## Phase 5 — Cut over (gated on SPA parity)  [-]
+Deferred: deleting the Jinja render path is destructive and only safe once the
+SPA reaches parity AND can be runtime-verified. Will not delete templates this
+pass. Phase 5 also switches Dockerfile off `flask run` to a real WSGI server.
+
+## Phase 6 — Hardening  [~]
+- [x] pytest scaffold (services + /api/v1 contracts) — `pytest.ini`, `tests/conftest.py`
+      (in-memory SQLite app fixture, no Postgres; stubbed polling/filter singletons),
+      `tests/test_app_factory.py` (endpoint registration + no module-level `app`),
+      `tests/test_api_contracts.py` (posts/post_detail/comments/filters JSON shape with
+      monkeypatched `post_service` + `get_filter_engine`), `tests/test_filter_pipeline.py`
+      (offline: registry discovery, offline plugin filterset, AI-disabled fail-open,
+      comment tree modes), `tests/test_plugin_contract.py` (drop-in stage/plugin)
+- [ ] ruff config + CI workflow
+- [ ] charset/encoding CI gate
+- [x] plugin contract test (drop-in stage/plugin discovered with zero core edits) —
+      `tests/test_plugin_contract.py` registers a stage + plugin only in the test
+      module via the public decorators and asserts the engine instantiates and runs
+      it, plus a throwaway on-disk config selecting it
+
+Verification note: `tests/test_filter_pipeline.py` and `tests/test_plugin_contract.py`
+are Flask-free and were exercised locally with a plain-python harness (12/12 pass)
+since `pytest` is not installed locally. The app-factory / API-contract tests
+`py_compile` clean and run in CI/docker where Flask/SQLAlchemy/bcrypt are present.
+
+## Verification constraints
+No venv/Flask deps or Postgres available locally (see memory `env-no-local-runtime`).
+All Python verified via `python -m py_compile` only; runtime/endpoint checks
+require `docker compose up` or a deps-installed venv. SPA build needs npm.

pytest.ini

@@ -0,0 +1,8 @@
+[pytest]
+testpaths = tests
+python_files = test_*.py
+python_classes = Test*
+python_functions = test_*
+addopts = -ra -q
+filterwarnings =
+    ignore::DeprecationWarning

requirements.txt

@@ -12,3 +12,5 @@ authlib==1.3.2
 APScheduler==3.10.4
 praw==7.7.1
 feedparser==6.0.12
+# Test harness (Agent E)
+pytest==8.3.4

routes/__init__.py

@@ -0,0 +1 @@
+"""Route registration modules."""

routes/admin.py

@@ -0,0 +1,304 @@
+"""Admin route registration."""
+
+import logging
+import os
+import shutil
+from datetime import datetime
+
+from flask import flash, redirect, render_template, request, url_for
+from flask_login import current_user, login_required
+
+from database import db
+from extensions import get_polling_service
+from models import PollLog, PollSource
+from services import load_platform_config, post_service
+
+logger = logging.getLogger(__name__)
+
+
+def _require_admin(redirect_endpoint="index", message="Access denied"):
+    if current_user.is_admin:
+        return None
+    flash(message, "error")
+    return redirect(url_for(redirect_endpoint))
+
+
+def register_admin_routes(app, user_service):
+    """Register admin routes while preserving endpoint names."""
+
+    @app.route("/admin")
+    @login_required
+    def admin_panel():
+        """Admin panel - user management."""
+        denied = _require_admin("index", "Access denied. Admin privileges required.")
+        if denied:
+            return denied
+
+        if not user_service:
+            flash("User service not available", "error")
+            return redirect(url_for("index"))
+
+        users = user_service.get_all_users()
+        return render_template("admin.html", users=users)
+
+    @app.route("/admin/user/<user_id>/delete", methods=["POST"])
+    @login_required
+    def admin_delete_user(user_id):
+        """Delete user (admin only)."""
+        denied = _require_admin("index")
+        if denied:
+            return denied
+
+        if current_user.id == user_id:
+            flash("You cannot delete your own account!", "error")
+            return redirect(url_for("admin_panel"))
+
+        user = user_service.get_user_by_id(user_id)
+        if user:
+            username = user.username
+            if user_service.delete_user(user_id):
+                flash(f"User {username} has been deleted.", "success")
+                logger.info(f"Admin {current_user.id} deleted user {username} ({user_id})")
+            else:
+                flash("Error deleting user", "error")
+                logger.error(f"Failed to delete user {user_id}")
+        else:
+            flash("User not found", "error")
+
+        return redirect(url_for("admin_panel"))
+
+    @app.route("/admin/user/<user_id>/toggle-admin", methods=["POST"])
+    @login_required
+    def admin_toggle_admin(user_id):
+        """Toggle user admin status."""
+        denied = _require_admin("index")
+        if denied:
+            return denied
+
+        target_user = user_service.get_user_by_id(user_id)
+        if target_user:
+            user_service.update_user_admin_status(user_id, not target_user.is_admin)
+            flash("Admin status updated", "success")
+        else:
+            flash("User not found", "error")
+
+        return redirect(url_for("admin_panel"))
+
+    @app.route("/admin/clear_cache", methods=["POST"])
+    @login_required
+    def admin_clear_cache():
+        """Clear application cache."""
+        denied = _require_admin("admin_panel")
+        if denied:
+            return denied
+
+        try:
+            for cache_dir in ["cache", "temp"]:
+                if os.path.exists(cache_dir):
+                    shutil.rmtree(cache_dir)
+            post_service.invalidate()
+            flash("Cache cleared successfully", "success")
+            logger.info(f"Cache cleared by admin user {current_user.id}")
+        except Exception as e:
+            flash(f"Error clearing cache: {str(e)}", "error")
+            logger.error(f"Cache clearing error: {e}")
+
+        return redirect(url_for("admin_panel"))
+
+    @app.route("/admin/backup_data", methods=["POST"])
+    @login_required
+    def admin_backup_data():
+        """Create backup of application data."""
+        denied = _require_admin("admin_panel")
+        if denied:
+            return denied
+
+        try:
+            timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
+            backup_name = f"balanceboard_backup_{timestamp}"
+            backup_dir = f"backups/{backup_name}"
+            os.makedirs(backup_dir, exist_ok=True)
+
+            for dir_name in ["data", "templates", "themes", "static"]:
+                if os.path.exists(dir_name):
+                    shutil.copytree(dir_name, f"{backup_dir}/{dir_name}")
+
+            for file_name in ["app.py", "models.py", "database.py", "filtersets.json"]:
+                if os.path.exists(file_name):
+                    shutil.copy2(file_name, backup_dir)
+
+            flash(f"Backup created: {backup_name}", "success")
+        except Exception as e:
+            flash(f"Error creating backup: {str(e)}", "error")
+
+        return redirect(url_for("admin_panel"))
+
+    @app.route("/admin/polling")
+    @login_required
+    def admin_polling():
+        """Admin polling management page."""
+        denied = _require_admin("index", "Access denied. Admin privileges required.")
+        if denied:
+            return denied
+
+        sources = PollSource.query.order_by(PollSource.platform, PollSource.display_name).all()
+        scheduler_status = get_polling_service().get_status()
+        platform_config = load_platform_config()
+        return render_template(
+            "admin_polling.html",
+            sources=sources,
+            scheduler_status=scheduler_status,
+            platform_config=platform_config,
+        )
+
+    @app.route("/admin/polling/add", methods=["POST"])
+    @login_required
+    def admin_polling_add():
+        """Add a new poll source."""
+        denied = _require_admin("index")
+        if denied:
+            return denied
+
+        platform = request.form.get("platform")
+        source_id = request.form.get("source_id")
+        custom_source_id = request.form.get("custom_source_id")
+        display_name = request.form.get("display_name")
+        poll_interval = int(request.form.get("poll_interval", 60))
+        max_posts = int(request.form.get("max_posts", 100))
+        fetch_comments = request.form.get("fetch_comments", "true") == "true"
+        priority = request.form.get("priority", "medium")
+
+        if custom_source_id and custom_source_id.strip():
+            source_id = custom_source_id.strip()
+
+        if not platform or not source_id or not display_name:
+            flash("Missing required fields", "error")
+            return redirect(url_for("admin_polling"))
+
+        existing = PollSource.query.filter_by(platform=platform, source_id=source_id).first()
+        if existing:
+            flash(f"Source {platform}:{source_id} already exists", "warning")
+            return redirect(url_for("admin_polling"))
+
+        source = PollSource(
+            platform=platform,
+            source_id=source_id,
+            display_name=display_name,
+            poll_interval_minutes=poll_interval,
+            max_posts=max_posts,
+            fetch_comments=fetch_comments,
+            priority=priority,
+            enabled=False,
+            created_by=current_user.id,
+        )
+        db.session.add(source)
+        db.session.commit()
+
+        flash(f"Added polling source: {display_name}", "success")
+        logger.info(f"Admin {current_user.id} added poll source {platform}:{source_id}")
+        return redirect(url_for("admin_polling"))
+
+    @app.route("/admin/polling/<source_id>/toggle", methods=["POST"])
+    @login_required
+    def admin_polling_toggle(source_id):
+        """Toggle a poll source on/off."""
+        denied = _require_admin("index")
+        if denied:
+            return denied
+
+        source = PollSource.query.get(source_id)
+        if not source:
+            flash("Source not found", "error")
+            return redirect(url_for("admin_polling"))
+
+        source.enabled = not source.enabled
+        db.session.commit()
+        status = "enabled" if source.enabled else "disabled"
+        flash(f"Polling {status} for {source.display_name}", "success")
+        return redirect(url_for("admin_polling"))
+
+    @app.route("/admin/polling/<source_id>/update", methods=["POST"])
+    @login_required
+    def admin_polling_update(source_id):
+        """Update poll source configuration."""
+        denied = _require_admin("index")
+        if denied:
+            return denied
+
+        source = PollSource.query.get(source_id)
+        if not source:
+            flash("Source not found", "error")
+            return redirect(url_for("admin_polling"))
+
+        if request.form.get("poll_interval"):
+            source.poll_interval_minutes = int(request.form.get("poll_interval"))
+        if request.form.get("max_posts"):
+            source.max_posts = int(request.form.get("max_posts"))
+        if request.form.get("fetch_comments") is not None:
+            source.fetch_comments = request.form.get("fetch_comments") == "true"
+        if request.form.get("priority"):
+            source.priority = request.form.get("priority")
+        if request.form.get("display_name"):
+            source.display_name = request.form.get("display_name")
+
+        db.session.commit()
+        flash(f"Updated settings for {source.display_name}", "success")
+        return redirect(url_for("admin_polling"))
+
+    @app.route("/admin/polling/<source_id>/poll-now", methods=["POST"])
+    @login_required
+    def admin_polling_poll_now(source_id):
+        """Manually trigger polling for a source."""
+        denied = _require_admin("index")
+        if denied:
+            return denied
+
+        source = PollSource.query.get(source_id)
+        if not source:
+            flash("Source not found", "error")
+            return redirect(url_for("admin_polling"))
+
+        try:
+            get_polling_service().poll_now(source_id)
+            flash(f"Polling started for {source.display_name}", "success")
+        except Exception as e:
+            flash(f"Error starting poll: {str(e)}", "error")
+            logger.error(f"Error triggering poll for {source_id}: {e}")
+
+        return redirect(url_for("admin_polling"))
+
+    @app.route("/admin/polling/<source_id>/delete", methods=["POST"])
+    @login_required
+    def admin_polling_delete(source_id):
+        """Delete a poll source."""
+        denied = _require_admin("index")
+        if denied:
+            return denied
+
+        source = PollSource.query.get(source_id)
+        if not source:
+            flash("Source not found", "error")
+            return redirect(url_for("admin_polling"))
+
+        display_name = source.display_name
+        db.session.delete(source)
+        db.session.commit()
+        flash(f"Deleted polling source: {display_name}", "success")
+        logger.info(f"Admin {current_user.id} deleted poll source {source_id}")
+        return redirect(url_for("admin_polling"))
+
+    @app.route("/admin/polling/<source_id>/logs")
+    @login_required
+    def admin_polling_logs(source_id):
+        """View logs for a specific poll source."""
+        denied = _require_admin("index")
+        if denied:
+            return denied
+
+        source = PollSource.query.get(source_id)
+        if not source:
+            flash("Source not found", "error")
+            return redirect(url_for("admin_polling"))
+
+        logs = source.logs.limit(50).all()
+        return render_template("admin_polling_logs.html", source=source, logs=logs)

routes/assets.py

@@ -0,0 +1,41 @@
+"""Asset and static-file route registration."""
+
+import logging
+import os
+
+from flask import abort, current_app, send_from_directory
+
+from security import is_safe_path
+
+logger = logging.getLogger(__name__)
+
+
+def register_asset_routes(app):
+    """Register asset routes while preserving legacy endpoint names."""
+
+    @app.route("/themes/<path:filename>")
+    def serve_theme(filename):
+        """Serve theme files (CSS, JS)."""
+        if not is_safe_path(filename) or ".." in filename:
+            logger.warning(f"Unsafe theme file requested: {filename}")
+            abort(404)
+        return send_from_directory("themes", filename)
+
+    @app.route("/logo.png")
+    def serve_logo():
+        """Serve configurable logo."""
+        logo_path = current_app.config["LOGO_PATH"]
+        if "/" not in logo_path:
+            return send_from_directory(".", logo_path)
+
+        directory = os.path.dirname(logo_path)
+        filename = os.path.basename(logo_path)
+        return send_from_directory(directory, filename)
+
+    @app.route("/static/<path:filename>")
+    def serve_static(filename):
+        """Serve static files (avatars, etc.)."""
+        if not is_safe_path(filename) or ".." in filename:
+            logger.warning(f"Unsafe static file requested: {filename}")
+            abort(404)
+        return send_from_directory("static", filename)

routes/auth.py

@@ -0,0 +1,290 @@
+"""Authentication route registration."""
+
+import logging
+from urllib.parse import quote_plus, urlencode
+
+from flask import current_app, flash, redirect, render_template, request, session, url_for
+from flask_login import current_user, login_required, login_user, logout_user
+
+from config import MAX_USERNAME_LENGTH, MIN_PASSWORD_LENGTH
+from models import User
+
+logger = logging.getLogger(__name__)
+
+
+def register_auth_routes(app, user_service, auth0_client):
+    """Register auth routes while preserving legacy endpoint names."""
+
+    @app.route("/login", methods=["GET", "POST"])
+    def login():
+        """Login page."""
+        if current_user.is_authenticated:
+            return redirect(url_for("index"))
+
+        auth0_configured = bool(
+            current_app.config.get("AUTH0_DOMAIN")
+            and current_app.config.get("AUTH0_CLIENT_ID")
+        )
+
+        if request.method == "POST":
+            username = request.form.get("username")
+            password = request.form.get("password")
+            remember = request.form.get("remember", False) == "on"
+
+            if not user_service:
+                flash("User service not available", "error")
+                return render_template("login.html", auth0_configured=auth0_configured)
+
+            user = user_service.authenticate(username, password)
+            if user:
+                login_user(user, remember=remember)
+                flash(f"Welcome back, {user.username}!", "success")
+                next_page = request.args.get("next")
+                return redirect(next_page) if next_page else redirect(url_for("index"))
+
+            flash("Invalid username or password", "error")
+
+        return render_template("login.html", auth0_configured=auth0_configured)
+
+    @app.route("/password-reset-request", methods=["GET", "POST"])
+    def password_reset_request():
+        """Request a password reset."""
+        if current_user.is_authenticated:
+            return redirect(url_for("index"))
+
+        if request.method == "POST":
+            email = request.form.get("email", "").strip().lower()
+            if not email:
+                flash("Please enter your email address", "error")
+                return render_template("password_reset_request.html")
+
+            user = User.query.filter_by(email=email).first()
+            flash(
+                "If an account exists with that email, a password reset link has been sent.",
+                "success",
+            )
+
+            if user and user.password_hash:
+                token = user.generate_reset_token()
+                reset_url = url_for("password_reset", token=token, _external=True)
+                logger.info(f"Password reset requested for {email}. Reset URL: {reset_url}")
+                flash(f"Reset link (development only): {reset_url}", "info")
+
+            return redirect(url_for("login"))
+
+        return render_template("password_reset_request.html")
+
+    @app.route("/password-reset/<token>", methods=["GET", "POST"])
+    def password_reset(token):
+        """Reset password with token."""
+        if current_user.is_authenticated:
+            return redirect(url_for("index"))
+
+        user = User.query.filter_by(reset_token=token).first()
+        if not user or not user.verify_reset_token(token):
+            flash("Invalid or expired reset token", "error")
+            return redirect(url_for("login"))
+
+        if request.method == "POST":
+            password = request.form.get("password", "")
+            confirm_password = request.form.get("confirm_password", "")
+
+            if not password or len(password) < MIN_PASSWORD_LENGTH:
+                flash(f"Password must be at least {MIN_PASSWORD_LENGTH} characters", "error")
+                return render_template("password_reset.html")
+
+            if password != confirm_password:
+                flash("Passwords do not match", "error")
+                return render_template("password_reset.html")
+
+            user.set_password(password)
+            user.clear_reset_token()
+            flash("Your password has been reset successfully. You can now log in.", "success")
+            return redirect(url_for("login"))
+
+        return render_template("password_reset.html")
+
+    @app.route("/auth0/login")
+    def auth0_login():
+        """Redirect to Auth0 for authentication."""
+        if not current_app.config.get("AUTH0_DOMAIN") or not current_app.config.get("AUTH0_CLIENT_ID"):
+            flash(
+                "Auth0 authentication is not configured. Please use email/password login or contact the administrator.",
+                "error",
+            )
+            return redirect(url_for("login"))
+
+        try:
+            redirect_uri = url_for("auth0_callback", _external=True)
+            return auth0_client.authorize_redirect(redirect_uri)
+        except Exception as e:
+            logger.error(f"Auth0 login error: {e}")
+            flash("Auth0 authentication failed. Please use email/password login.", "error")
+            return redirect(url_for("login"))
+
+    @app.route("/auth0/callback")
+    def auth0_callback():
+        """Handle Auth0 callback and create/login user."""
+        try:
+            token = auth0_client.authorize_access_token()
+            user_info = token.get("userinfo")
+            if not user_info:
+                user_info = auth0_client.parse_id_token(token)
+
+            auth0_id = user_info.get("sub")
+            email = user_info.get("email")
+            username = (
+                user_info.get("nickname")
+                or user_info.get("preferred_username")
+                or email.split("@")[0]
+            )
+
+            if not auth0_id or not email:
+                flash("Unable to get user information from Auth0", "error")
+                return redirect(url_for("login"))
+
+            user = user_service.get_user_by_auth0_id(auth0_id)
+            if not user:
+                existing_user = user_service.get_user_by_email(email)
+                if existing_user:
+                    user_service.link_auth0_account(existing_user.id, auth0_id)
+                    user = existing_user
+                    flash(f"Account linked successfully! Welcome back, {user.username}!", "success")
+                else:
+                    base_username = username[:MAX_USERNAME_LENGTH - 3]
+                    unique_username = base_username
+                    counter = 1
+                    while user_service.username_exists(unique_username):
+                        unique_username = f"{base_username}_{counter}"
+                        counter += 1
+
+                    user_id = user_service.create_user(
+                        username=unique_username,
+                        email=email,
+                        password=None,
+                        is_admin=False,
+                        auth0_id=auth0_id,
+                    )
+                    if user_id:
+                        user = user_service.get_user_by_id(user_id)
+                        flash(f"Account created successfully! Welcome, {user.username}!", "success")
+                    else:
+                        flash("Failed to create user account", "error")
+                        return redirect(url_for("login"))
+            else:
+                flash(f"Welcome back, {user.username}!", "success")
+
+            if user:
+                login_user(user, remember=True)
+                session["auth0_user_info"] = user_info
+                next_page = request.args.get("next")
+                return redirect(next_page) if next_page else redirect(url_for("index"))
+        except Exception as e:
+            logger.error(f"Auth0 callback error: {e}")
+            flash("Authentication failed. Please try again.", "error")
+
+        return redirect(url_for("login"))
+
+    @app.route("/auth0/logout")
+    @login_required
+    def auth0_logout():
+        """Logout from Auth0 and local session."""
+        session.clear()
+        logout_user()
+
+        domain = current_app.config["AUTH0_DOMAIN"]
+        client_id = current_app.config["AUTH0_CLIENT_ID"]
+        return_to = url_for("index", _external=True)
+        logout_url = f"https://{domain}/v2/logout?" + urlencode(
+            {"returnTo": return_to, "client_id": client_id}, quote_via=quote_plus
+        )
+        return redirect(logout_url)
+
+    @app.route("/admin-setup", methods=["GET", "POST"])
+    def admin_setup():
+        """Create first admin user."""
+        try:
+            user_count = User.query.count()
+            if user_count > 0:
+                flash("Admin user already exists.", "info")
+                return redirect(url_for("login"))
+        except Exception as e:
+            logger.warning(f"Database error checking existing users: {e}")
+
+        if request.method == "POST":
+            username = request.form.get("username")
+            email = request.form.get("email")
+            password = request.form.get("password")
+            password_confirm = request.form.get("password_confirm")
+
+            if not username or not email or not password:
+                flash("All fields are required", "error")
+                return render_template("admin_setup.html")
+
+            if password != password_confirm:
+                flash("Passwords do not match", "error")
+                return render_template("admin_setup.html")
+
+            if len(password) < MIN_PASSWORD_LENGTH:
+                flash(f"Password must be at least {MIN_PASSWORD_LENGTH} characters", "error")
+                return render_template("admin_setup.html")
+
+            user_id = user_service.create_user(username, email, password, is_admin=True)
+            if user_id:
+                flash("Admin account created successfully! Please log in.", "success")
+                return redirect(url_for("login"))
+            flash("Error creating admin account. Please try again.", "error")
+
+        return render_template("admin_setup.html")
+
+    @app.route("/signup", methods=["GET", "POST"])
+    def signup():
+        """Signup page."""
+        if current_user.is_authenticated:
+            return redirect(url_for("index"))
+
+        if request.method == "POST":
+            username = request.form.get("username")
+            email = request.form.get("email")
+            password = request.form.get("password")
+            password_confirm = request.form.get("password_confirm")
+
+            if not user_service:
+                flash("User service not available", "error")
+                return render_template("signup.html")
+
+            if not username or not email or not password:
+                flash("All fields are required", "error")
+                return render_template("signup.html")
+
+            if password != password_confirm:
+                flash("Passwords do not match", "error")
+                return render_template("signup.html")
+
+            if len(password) < MIN_PASSWORD_LENGTH:
+                flash(f"Password must be at least {MIN_PASSWORD_LENGTH} characters", "error")
+                return render_template("signup.html")
+
+            if user_service.username_exists(username):
+                flash("Username already taken", "error")
+                return render_template("signup.html")
+
+            if user_service.email_exists(email):
+                flash("Email already registered", "error")
+                return render_template("signup.html")
+
+            user_id = user_service.create_user(username, email, password)
+            if user_id:
+                flash("Account created successfully! Please log in.", "success")
+                return redirect(url_for("login"))
+            flash("Error creating account. Please try again.", "error")
+
+        return render_template("signup.html")
+
+    @app.route("/logout")
+    @login_required
+    def logout():
+        """Logout current user."""
+        logout_user()
+        flash("You have been logged out.", "info")
+        return redirect(url_for("index"))

routes/pages.py

@@ -0,0 +1,96 @@
+"""Page route registration for the legacy Jinja UI."""
+
+import json
+import logging
+
+from flask import current_app, redirect, render_template, url_for
+from flask_login import current_user, login_required
+
+from services import get_display_name_for_source, load_platform_config, post_service
+
+logger = logging.getLogger(__name__)
+
+
+def _load_user_settings():
+    if not current_user.is_authenticated:
+        return {}
+    try:
+        return json.loads(current_user.settings) if current_user.settings else {}
+    except (json.JSONDecodeError, TypeError):
+        return {}
+
+
+def register_page_routes(app):
+    """Register legacy page routes while preserving endpoint names."""
+
+    @app.route("/")
+    def index():
+        """Serve the main feed page."""
+        quick_stats = post_service.quick_stats()
+
+        if current_user.is_authenticated:
+            return render_template(
+                "dashboard.html",
+                user_settings=_load_user_settings(),
+                quick_stats=quick_stats,
+            )
+
+        if current_app.config.get("ALLOW_ANONYMOUS_ACCESS", False):
+            user_settings = {
+                "filter_set": "no_filter",
+                "communities": [],
+                "experience": {
+                    "infinite_scroll": False,
+                    "auto_refresh": False,
+                    "push_notifications": False,
+                    "dark_patterns_opt_in": False,
+                    "time_filter_enabled": False,
+                    "time_filter_days": 7,
+                },
+            }
+            return render_template(
+                "dashboard.html",
+                user_settings=user_settings,
+                anonymous=True,
+                quick_stats=quick_stats,
+            )
+
+        return redirect(url_for("login"))
+
+    @app.route("/bookmarks")
+    @login_required
+    def bookmarks():
+        """Bookmarks page."""
+        return render_template("bookmarks.html", user=current_user)
+
+    @app.route("/post/<post_id>")
+    def post_detail(post_id):
+        """Serve individual post detail page with modern theme."""
+        try:
+            platform_config = load_platform_config()
+            cached_posts, cached_comments = post_service.load()
+
+            post_data = cached_posts.get(post_id)
+            if not post_data:
+                return render_template("404.html"), 404
+
+            post = dict(post_data)
+            post["source_display"] = get_display_name_for_source(
+                post.get("platform", ""),
+                post.get("source", ""),
+                platform_config,
+            )
+
+            comments_flat = cached_comments.get(post_id, [])
+            logger.info(f"Loading post {post_id}: found {len(comments_flat)} comments")
+            comments = post_service.build_comment_tree(comments_flat)
+
+            return render_template(
+                "post_detail.html",
+                post=post,
+                comments=comments,
+                user_settings=_load_user_settings(),
+            )
+        except Exception as e:
+            logger.error(f"Error loading post {post_id}: {e}")
+            return render_template("404.html"), 404

routes/settings.py

@@ -0,0 +1,310 @@
+"""Settings and profile route registration."""
+
+import json
+import logging
+import os
+
+from flask import current_app, flash, redirect, render_template, request, url_for
+from flask_login import current_user, login_required
+from werkzeug.utils import secure_filename
+
+from config import MAX_FILENAME_LENGTH, UPLOAD_FOLDER
+from database import db
+from extensions import get_filter_engine
+from security import is_allowed_file, is_safe_filterset
+from services import SettingsService, load_platform_config
+
+logger = logging.getLogger(__name__)
+
+
+DEFAULT_AVATARS = [
+    {"id": "default_1", "name": "Gradient Blue", "bg": "linear-gradient(135deg, #667eea 0%, #764ba2 100%)"},
+    {"id": "default_2", "name": "Gradient Green", "bg": "linear-gradient(135deg, #4facfe 0%, #00f2fe 100%)"},
+    {"id": "default_3", "name": "Gradient Orange", "bg": "linear-gradient(135deg, #fa709a 0%, #fee140 100%)"},
+    {"id": "default_4", "name": "Gradient Purple", "bg": "linear-gradient(135deg, #a8edea 0%, #fed6e3 100%)"},
+    {"id": "default_5", "name": "Brand Colors", "bg": "linear-gradient(135deg, #4db6ac 0%, #26a69a 100%)"},
+    {"id": "default_6", "name": "Sunset", "bg": "linear-gradient(135deg, #ff7e5f 0%, #feb47b 100%)"},
+]
+
+
+def register_settings_routes(app, user_service):
+    """Register settings/profile routes while preserving endpoint names."""
+
+    @app.route("/settings")
+    @login_required
+    def settings():
+        """Main settings page."""
+        user_settings = SettingsService.parse(current_user.settings)
+
+        try:
+            with open("filtersets.json", "r", encoding="utf-8") as f:
+                filter_sets = json.load(f)
+        except (FileNotFoundError, json.JSONDecodeError, IOError):
+            filter_sets = {}
+
+        return render_template(
+            "settings.html",
+            user=current_user,
+            user_settings=user_settings,
+            filter_sets=filter_sets,
+        )
+
+    @app.route("/settings/profile", methods=["GET", "POST"])
+    @login_required
+    def settings_profile():
+        """Profile settings page."""
+        if request.method == "POST":
+            username = request.form.get("username")
+            email = request.form.get("email")
+            default_avatar = request.form.get("default_avatar")
+
+            if not username or not email:
+                flash("Username and email are required", "error")
+                return render_template("settings_profile.html", user=current_user)
+
+            if username != current_user.username and user_service.username_exists(username):
+                flash("Username already taken", "error")
+                return render_template("settings_profile.html", user=current_user)
+
+            if email != current_user.email and user_service.email_exists(email):
+                flash("Email already registered", "error")
+                return render_template("settings_profile.html", user=current_user)
+
+            current_user.username = username
+            current_user.email = email
+
+            if default_avatar and default_avatar.startswith("default_"):
+                current_user.profile_picture_url = f"/static/default-avatars/{default_avatar}.png"
+
+            db.session.commit()
+            flash("Profile updated successfully", "success")
+            return redirect(url_for("settings"))
+
+        return render_template(
+            "settings_profile.html",
+            user=current_user,
+            default_avatars=DEFAULT_AVATARS,
+        )
+
+    @app.route("/settings/communities", methods=["GET", "POST"])
+    @login_required
+    def settings_communities():
+        """Community/source selection settings."""
+        if request.method == "POST":
+            user_settings = SettingsService.parse(current_user.settings)
+            user_settings["communities"] = request.form.getlist("communities")
+            current_user.settings = json.dumps(user_settings)
+            db.session.commit()
+            flash("Community preferences updated", "success")
+            return redirect(url_for("settings"))
+
+        user_settings = SettingsService.parse(current_user.settings)
+        selected_communities = user_settings.get("communities", [])
+        available_communities = []
+
+        try:
+            platform_config = load_platform_config() or {"platforms": {}, "collection_targets": []}
+        except Exception as e:
+            logger.error(f"Error loading platform config: {e}")
+            platform_config = {"platforms": {}, "collection_targets": []}
+
+        enabled_communities = set()
+        try:
+            for target in platform_config.get("collection_targets", []):
+                if "platform" in target and "community" in target:
+                    enabled_communities.add((target["platform"], target["community"]))
+        except Exception as e:
+            logger.error(f"Error processing collection_targets: {e}")
+
+        try:
+            for platform_name, platform_info in platform_config.get("platforms", {}).items():
+                if not isinstance(platform_info, dict):
+                    continue
+                communities = platform_info.get("communities", [])
+                if not isinstance(communities, list):
+                    continue
+
+                for community_info in communities:
+                    try:
+                        if not isinstance(community_info, dict):
+                            continue
+                        if (platform_name, community_info["id"]) in enabled_communities:
+                            available_communities.append(
+                                {
+                                    "id": community_info["id"],
+                                    "name": community_info["name"],
+                                    "display_name": community_info.get("display_name", community_info["name"]),
+                                    "platform": platform_name,
+                                    "icon": community_info.get("icon", platform_info.get("icon", "\U0001f4c4")),
+                                    "description": community_info.get("description", ""),
+                                }
+                            )
+                    except Exception as e:
+                        logger.error(f"Error processing community {community_info}: {e}")
+                        continue
+        except Exception as e:
+            logger.error(f"Error building community list: {e}")
+
+        logger.info(f"Found {len(available_communities)} available communities")
+        return render_template(
+            "settings_communities.html",
+            user=current_user,
+            available_communities=available_communities,
+            selected_communities=selected_communities,
+        )
+
+    @app.route("/settings/filters", methods=["GET", "POST"])
+    @login_required
+    def settings_filters():
+        """Filter settings page."""
+        if request.method == "POST":
+            selected_filter = request.form.get("filter_set", "no_filter")
+            user_settings = SettingsService.validate(current_user.settings)
+
+            if is_safe_filterset(selected_filter):
+                user_settings["filter_set"] = selected_filter
+            else:
+                flash("Invalid filter selection", "error")
+                return redirect(url_for("settings"))
+
+            try:
+                current_user.settings = json.dumps(user_settings)
+                db.session.commit()
+                flash("Filter settings updated successfully", "success")
+            except Exception as e:
+                db.session.rollback()
+                logger.error(f"Error saving filter settings for user {current_user.id}: {e}")
+                flash("Error saving settings", "error")
+
+            return redirect(url_for("settings"))
+
+        user_settings = SettingsService.parse(current_user.settings)
+        current_filter = user_settings.get("filter_set", "no_filter")
+        filter_engine = get_filter_engine()
+        filter_sets = {
+            filterset_name: filter_engine.config.get_filterset(filterset_name)
+            for filterset_name in filter_engine.get_available_filtersets()
+        }
+
+        return render_template(
+            "settings_filters.html",
+            user=current_user,
+            filter_sets=filter_sets,
+            current_filter=current_filter,
+        )
+
+    @app.route("/settings/experience", methods=["GET", "POST"])
+    @login_required
+    def settings_experience():
+        """Experience and behavioral settings page."""
+        if request.method == "POST":
+            user_settings = SettingsService.parse(current_user.settings)
+            user_settings["experience"] = {
+                "infinite_scroll": request.form.get("infinite_scroll") == "on",
+                "auto_refresh": request.form.get("auto_refresh") == "on",
+                "push_notifications": request.form.get("push_notifications") == "on",
+                "dark_patterns_opt_in": request.form.get("dark_patterns_opt_in") == "on",
+                "time_filter_enabled": request.form.get("time_filter_enabled") == "on",
+                "time_filter_days": int(request.form.get("time_filter_days", 7)),
+            }
+            current_user.settings = json.dumps(user_settings)
+            db.session.commit()
+            flash("Experience settings updated successfully", "success")
+            return redirect(url_for("settings"))
+
+        return render_template(
+            "settings_experience.html",
+            user=current_user,
+            experience_settings=SettingsService.experience_settings(current_user.settings),
+        )
+
+    @app.route("/upload-avatar", methods=["POST"])
+    @login_required
+    def upload_avatar():
+        """Upload profile picture."""
+        try:
+            logger.info(f"Avatar upload attempt by user {current_user.id} ({current_user.username})")
+            logger.debug(f"Request files: {list(request.files.keys())}")
+            logger.debug(f"Request form: {dict(request.form)}")
+
+            if not hasattr(current_user, "id") or not current_user.id:
+                logger.error("User missing ID attribute")
+                flash("Authentication error. Please log in again.", "error")
+                return redirect(url_for("login"))
+
+            if not hasattr(current_user, "username") or not current_user.username:
+                logger.error("User missing username attribute")
+                flash("User profile incomplete. Please update your profile.", "error")
+                return redirect(url_for("settings_profile"))
+
+            if "avatar" not in request.files:
+                logger.warning("No avatar file in request")
+                flash("No file selected", "error")
+                return redirect(url_for("settings_profile"))
+
+            file = request.files["avatar"]
+            if file.filename == "":
+                logger.warning("Empty filename provided")
+                flash("No file selected", "error")
+                return redirect(url_for("settings_profile"))
+
+            logger.info(f"Processing file: {file.filename}")
+            if not is_allowed_file(file.filename):
+                logger.warning(f"Invalid file type: {file.filename}")
+                flash("Invalid file type. Please upload PNG, JPG, or GIF", "error")
+                return redirect(url_for("settings_profile"))
+
+            max_content_length = current_app.config.get("MAX_CONTENT_LENGTH", 16 * 1024 * 1024)
+            if hasattr(file, "content_length") and file.content_length > max_content_length:
+                logger.warning(f"File too large: {file.content_length}")
+                flash("File too large. Maximum size is 16MB", "error")
+                return redirect(url_for("settings_profile"))
+
+            filename = secure_filename(file.filename)
+            if not filename or len(filename) > MAX_FILENAME_LENGTH:
+                logger.warning(f"Invalid filename after sanitization: {filename}")
+                flash("Invalid filename", "error")
+                return redirect(url_for("settings_profile"))
+
+            unique_filename = f"{current_user.id}_{filename}"
+            logger.info(f"Generated unique filename: {unique_filename}")
+
+            upload_dir = os.path.abspath(UPLOAD_FOLDER)
+            os.makedirs(upload_dir, exist_ok=True)
+            upload_path = os.path.join(upload_dir, unique_filename)
+
+            if not os.path.abspath(upload_path).startswith(upload_dir):
+                logger.warning(f"Path traversal attempt in file upload: {upload_path}")
+                flash("Invalid file path", "error")
+                return redirect(url_for("settings_profile"))
+
+            file.save(upload_path)
+            logger.info(f"File saved successfully: {upload_path}")
+
+            old_avatar_url = current_user.profile_picture_url
+            current_user.profile_picture_url = f"/static/avatars/{unique_filename}"
+            db.session.commit()
+            logger.info(f"User profile updated successfully for {current_user.username}")
+
+            if old_avatar_url and old_avatar_url.startswith("/static/avatars/") and current_user.id in old_avatar_url:
+                try:
+                    old_file_path = os.path.join(upload_dir, os.path.basename(old_avatar_url))
+                    if os.path.exists(old_file_path):
+                        os.remove(old_file_path)
+                        logger.info(f"Cleaned up old avatar: {old_file_path}")
+                except Exception as e:
+                    logger.warning(f"Could not clean up old avatar: {e}")
+
+            flash("Profile picture updated successfully", "success")
+            return redirect(url_for("settings_profile"))
+        except Exception as e:
+            logger.error(f"Unexpected error in avatar upload: {e}")
+            db.session.rollback()
+            flash("An unexpected error occurred. Please try again.", "error")
+            return redirect(url_for("settings_profile"))
+
+    @app.route("/profile")
+    @login_required
+    def profile():
+        """User profile page."""
+        return render_template("profile.html", user=current_user)

run_app.py

@@ -6,7 +6,7 @@ Starts the Flask web app with PostgreSQL/SQLAlchemy integration.
 
 import os
 import sys
-from app import app
+from app import create_app
 
 
 def main():
@@ -52,6 +52,7 @@ def main():
 
     # Run Flask app
     debug_mode = os.getenv('FLASK_DEBUG', 'True').lower() == 'true'
+    app = create_app()
     app.run(host=host, port=port, debug=debug_mode)
 
 

security.py

@@ -0,0 +1,37 @@
+"""Security helper functions shared across route modules."""
+
+import re
+
+from config import ALLOWED_EXTENSIONS
+from extensions import get_filter_engine
+
+
+def is_safe_filterset(filterset):
+    """Validate a filterset name against the filter engine's known filtersets
+    and a safe-character whitelist. Fails closed if the filter engine has not
+    been initialized yet.
+    """
+    if not filterset or not isinstance(filterset, str):
+        return False
+    try:
+        allowed = set(get_filter_engine().get_available_filtersets())
+    except Exception:
+        return False
+    return filterset in allowed and re.match(r"^[a-zA-Z0-9_-]+$", filterset) is not None
+
+
+def is_safe_path(path):
+    """Validate a relative file path against directory-traversal attempts."""
+    if not path or not isinstance(path, str):
+        return False
+    if ".." in path or path.startswith("/") or "\\" in path:
+        return False
+    return re.match(r"^[a-zA-Z0-9._/-]+$", path) is not None
+
+
+def is_allowed_file(filename):
+    """Check whether an uploaded filename has an allowed image extension."""
+    return (
+        "." in filename
+        and filename.rsplit(".", 1)[1].lower() in ALLOWED_EXTENSIONS
+    )

services/__init__.py

@@ -0,0 +1,17 @@
+"""Service layer for BalanceBoard.
+
+Services hold business logic shared across route modules, keeping the route
+handlers thin. Posts/comments still come from disk JSON in this phase (moved
+to Postgres in Phase 3); ``PostService`` owns that cache.
+"""
+
+from .post_service import PostService, load_platform_config, get_display_name_for_source, post_service
+from .settings_service import SettingsService
+
+__all__ = [
+    "PostService",
+    "post_service",
+    "load_platform_config",
+    "get_display_name_for_source",
+    "SettingsService",
+]

services/post_service.py

@@ -0,0 +1,252 @@
+"""Post/comment data service.
+
+Owns the short-lived in-memory cache of posts and comments. Phase 3 makes
+Postgres the primary source of truth; the legacy ``data/*.json`` reader remains
+as a fallback for local/dev environments before the backfill has run.
+"""
+
+import json
+import logging
+import time
+from collections import defaultdict
+from datetime import datetime, timedelta
+from pathlib import Path
+
+from sqlalchemy import func
+
+from models import Comment, Post
+
+logger = logging.getLogger(__name__)
+
+_CACHE_DURATION = 300  # 5 minutes
+
+
+def load_platform_config():
+    """Load platform configuration from ``platform_config.json``.
+
+    Returns a safe default (empty platforms, no targets) on any error so
+    callers can iterate without extra guarding.
+    """
+    try:
+        with open("platform_config.json", "r", encoding="utf-8") as f:
+            return json.load(f)
+    except (FileNotFoundError, json.JSONDecodeError, IOError) as e:
+        logger.warning(f"Could not load platform config: {e}")
+        return {"platforms": {}, "collection_targets": []}
+
+
+def get_display_name_for_source(platform, source, platform_config):
+    """Get a human display name for a (platform, source) pair."""
+    if not platform_config or "platforms" not in platform_config:
+        return source
+
+    platform_info = platform_config["platforms"].get(platform, {})
+
+    if platform_info.get("supports_communities"):
+        for community in platform_info.get("communities", []):
+            if community["id"] == source:
+                return community["display_name"]
+        prefix = platform_info.get("prefix", "")
+        return f"{prefix}{source}" if source else platform_info.get("name", platform)
+    return platform_info.get("name", platform)
+
+
+class PostService:
+    """Cache and serve posts/comments from Postgres, plus derived views."""
+
+    def __init__(self, cache_duration=_CACHE_DURATION):
+        self.post_cache = {}
+        self.comment_cache = defaultdict(list)
+        self.cache_timestamp = 0
+        self.cache_duration = cache_duration
+        self.cache_source = None
+
+    def load(self):
+        """Return (post_cache, comment_cache), refreshing from Postgres if stale."""
+        current_time = time.time()
+        if current_time - self.cache_timestamp < self.cache_duration and self.post_cache:
+            return self.post_cache, self.comment_cache
+
+        self.post_cache.clear()
+        self.comment_cache.clear()
+
+        loaded_from_db = self._load_from_db()
+        if not loaded_from_db:
+            self._load_from_disk()
+            self.cache_source = "disk"
+        else:
+            self.cache_source = "db"
+
+        self.cache_timestamp = current_time
+        logger.info(
+            f"Cache refreshed from {self.cache_source}: {len(self.post_cache)} posts, "
+            f"{len(self.comment_cache)} comment groups"
+        )
+        return self.post_cache, self.comment_cache
+
+    def _load_from_db(self):
+        """Populate caches from Postgres. Return False if unavailable or empty."""
+        try:
+            posts = Post.query.order_by(Post.timestamp.desc()).all()
+            if not posts:
+                return False
+
+            for post in posts:
+                self.post_cache[post.uuid] = self._post_to_dict(post)
+
+            comments = Comment.query.order_by(Comment.timestamp.asc()).all()
+            for comment in comments:
+                self.comment_cache[comment.post_uuid].append(self._comment_to_dict(comment))
+            return True
+        except Exception as e:
+            logger.warning(f"Postgres content load unavailable; falling back to disk: {e}")
+            self.post_cache.clear()
+            self.comment_cache.clear()
+            return False
+
+    def _load_from_disk(self):
+        posts_dir = Path("data/posts")
+        comments_dir = Path("data/comments")
+
+        if posts_dir.exists():
+            for post_file in posts_dir.glob("*.json"):
+                try:
+                    with open(post_file, "r", encoding="utf-8") as f:
+                        post_data = json.load(f)
+                        post_uuid = post_data.get("uuid")
+                        if post_uuid:
+                            self.post_cache[post_uuid] = post_data
+                except (json.JSONDecodeError, IOError) as e:
+                    logger.debug(f"Error reading post file {post_file}: {e}")
+
+        if comments_dir.exists():
+            for comment_file in comments_dir.glob("*.json"):
+                try:
+                    with open(comment_file, "r", encoding="utf-8") as f:
+                        comment_data = json.load(f)
+                        post_uuid = comment_data.get("post_uuid")
+                        if post_uuid:
+                            self.comment_cache[post_uuid].append(comment_data)
+                except (json.JSONDecodeError, IOError) as e:
+                    logger.debug(f"Error reading comment file {comment_file}: {e}")
+
+    @staticmethod
+    def _post_to_dict(post):
+        return {
+            "uuid": post.uuid,
+            "id": post.external_id or post.uuid,
+            "platform": post.platform,
+            "source": post.source,
+            "title": post.title,
+            "author": post.author,
+            "url": post.url,
+            "content": post.content,
+            "score": post.score,
+            "timestamp": post.timestamp,
+            "tags": post.tags or [],
+            "moderation_uuid": post.moderation_uuid,
+        }
+
+    @staticmethod
+    def _comment_to_dict(comment):
+        return {
+            "uuid": comment.uuid,
+            "post_uuid": comment.post_uuid,
+            "platform": comment.platform,
+            "parent_comment_uuid": comment.parent_comment_uuid,
+            "id": comment.comment_id or comment.uuid,
+            "comment_id": comment.comment_id,
+            "author": comment.author,
+            "content": comment.content,
+            "score": comment.score,
+            "timestamp": comment.timestamp,
+            "depth": comment.depth,
+            "moderation_uuid": comment.moderation_uuid,
+        }
+
+    def invalidate(self):
+        """Force the next ``load()`` to refresh content."""
+        self.cache_timestamp = 0
+
+    def quick_stats(self):
+        """Return {posts_today, total_posts} for the dashboard."""
+        cached_posts, _ = self.load()
+        now = datetime.utcnow()
+        today_timestamp = (now - timedelta(hours=24)).timestamp()
+        posts_today = sum(
+            1 for post in cached_posts.values()
+            if post.get("timestamp", 0) >= today_timestamp
+        )
+        return {"posts_today": posts_today, "total_posts": len(cached_posts)}
+
+    @staticmethod
+    def build_comment_tree(comments):
+        """Build a hierarchical comment tree from a flat comment list."""
+        comment_dict = {c["uuid"]: {**c, "replies": []} for c in comments}
+        root_comments = []
+        for comment in comments:
+            parent_uuid = comment.get("parent_comment_uuid")
+            if parent_uuid and parent_uuid in comment_dict:
+                comment_dict[parent_uuid]["replies"].append(
+                    comment_dict[comment["uuid"]]
+                )
+            else:
+                root_comments.append(comment_dict[comment["uuid"]])
+
+        def sort_tree(comments_list):
+            comments_list.sort(key=lambda x: x.get("timestamp", 0))
+            for comment in comments_list:
+                if comment.get("replies"):
+                    sort_tree(comment["replies"])
+
+        sort_tree(root_comments)
+        return root_comments
+
+    def latest_content_mtime(self):
+        """Latest content update timestamp for client auto-refresh polling."""
+        try:
+            latest_created = Post.query.with_entities(func.max(Post.created_at)).scalar()
+            if latest_created:
+                return latest_created.timestamp()
+        except Exception as e:
+            logger.debug(f"Could not read latest content timestamp from DB: {e}")
+
+        posts_dir = Path("data/posts")
+        if not posts_dir.exists():
+            return 0
+        latest = 0
+        for post_file in posts_dir.glob("*.json"):
+            mtime = post_file.stat().st_mtime
+            if mtime > latest:
+                latest = mtime
+        return latest
+
+    def source_counts(self):
+        """Count posts per ``platform:source`` for the platforms API."""
+        try:
+            rows = (
+                Post.query.with_entities(Post.platform, Post.source, func.count(Post.uuid))
+                .group_by(Post.platform, Post.source)
+                .all()
+            )
+            if rows:
+                return {f"{platform}:{source}": count for platform, source, count in rows}
+        except Exception as e:
+            logger.debug(f"Could not read source counts from DB: {e}")
+
+        counts = {}
+        posts_dir = Path("data/posts")
+        if not posts_dir.exists():
+            return counts
+        for post_file in posts_dir.glob("*.json"):
+            try:
+                with open(post_file, "r", encoding="utf-8") as f:
+                    post_data = json.load(f)
+                    key = f"{post_data.get('platform', 'unknown')}:{post_data.get('source', '')}"
+                    counts[key] = counts.get(key, 0) + 1
+            except (json.JSONDecodeError, IOError):
+                continue
+        return counts
+
+
+post_service = PostService()

services/settings_service.py

@@ -0,0 +1,92 @@
+"""User settings validation and defaults."""
+
+import json
+import logging
+import re
+
+from config import MAX_COMMUNITY_NAME_LENGTH
+from security import is_safe_filterset
+
+logger = logging.getLogger(__name__)
+
+
+class SettingsService:
+    """Parse and sanitize user settings JSON shared by page and API routes."""
+
+    EXPERIENCE_DEFAULTS = {
+        "infinite_scroll": False,
+        "auto_refresh": False,
+        "push_notifications": False,
+        "dark_patterns_opt_in": False,
+        "time_filter_enabled": False,
+        "time_filter_days": 7,
+    }
+
+    EXPERIENCE_BOOL_FIELDS = {
+        "infinite_scroll",
+        "auto_refresh",
+        "push_notifications",
+        "dark_patterns_opt_in",
+        "time_filter_enabled",
+    }
+
+    @classmethod
+    def parse(cls, settings_str):
+        """Return settings JSON as a dict, or an empty dict if invalid."""
+        if not settings_str:
+            return {}
+        try:
+            settings = json.loads(settings_str)
+        except json.JSONDecodeError as e:
+            logger.warning(f"Invalid user settings JSON: {e}")
+            return {}
+        if not isinstance(settings, dict):
+            logger.warning("User settings must be a JSON object")
+            return {}
+        return settings
+
+    @classmethod
+    def validate(cls, settings_str):
+        """Validate and sanitize persisted user settings JSON."""
+        settings = cls.parse(settings_str)
+        validated = {}
+
+        filter_set = settings.get("filter_set")
+        if isinstance(filter_set, str) and is_safe_filterset(filter_set):
+            validated["filter_set"] = filter_set
+
+        communities = settings.get("communities")
+        if isinstance(communities, list):
+            safe_communities = []
+            for community in communities:
+                if (
+                    isinstance(community, str)
+                    and len(community) <= MAX_COMMUNITY_NAME_LENGTH
+                    and re.match(r"^[a-zA-Z0-9_-]+$", community)
+                ):
+                    safe_communities.append(community)
+            validated["communities"] = safe_communities
+
+        experience = settings.get("experience")
+        if isinstance(experience, dict):
+            safe_experience = {}
+            for field in cls.EXPERIENCE_BOOL_FIELDS:
+                if field in experience and isinstance(experience[field], bool):
+                    safe_experience[field] = experience[field]
+
+            time_filter_days = experience.get("time_filter_days")
+            if isinstance(time_filter_days, int) and time_filter_days > 0:
+                safe_experience["time_filter_days"] = time_filter_days
+
+            validated["experience"] = safe_experience
+
+        return validated
+
+    @classmethod
+    def experience_settings(cls, settings_str):
+        """Return experience settings with defaults filled in."""
+        settings = cls.parse(settings_str)
+        experience = settings.get("experience", {})
+        if not isinstance(experience, dict):
+            experience = {}
+        return {**cls.EXPERIENCE_DEFAULTS, **experience}

start_server.py

@@ -127,13 +127,14 @@ def start_flask():
 
     # Import and run Flask app
     try:
-        from app import app
+        from app import create_app
         print_color("✓ Flask app imported successfully", 'green')
         print_color("✓ Database initialized with SQLAlchemy", 'green')
         print_color("✓ User authentication ready", 'green')
         print()
         
         # Run Flask
+        app = create_app()
         app.run(host='0.0.0.0', port=FLASK_PORT, debug=True, use_reloader=False)
         
     except Exception as e:

templates/404.html

@@ -3,7 +3,7 @@
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Page Not Found - BalanceBoard</title>
+    <title>Page Not Found - {{ APP_NAME }}</title>
     <link rel="stylesheet" href="{{ url_for('serve_theme', filename='modern-card-ui/styles.css') }}">
     <style>
         .error-container {

templates/500.html

@@ -3,7 +3,7 @@
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Server Error - BalanceBoard</title>
+    <title>Server Error - {{ APP_NAME }}</title>
     <link rel="stylesheet" href="{{ url_for('serve_theme', filename='modern-card-ui/styles.css') }}">
     <style>
         .error-container {

templates/_admin_base.html

@@ -0,0 +1,587 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>{% block title %}Admin Panel - {{ APP_NAME }}{% endblock %}</title>
+    <link rel="stylesheet" href="{{ url_for('serve_theme', filename='modern-card-ui/styles.css') }}">
+    <style>
+        /* ===== SHARED ADMIN STYLES ===== */
+        .admin-container {
+            max-width: 1400px;
+            margin: 0 auto;
+            padding: 24px;
+        }
+
+        .admin-header {
+            background: linear-gradient(135deg, var(--primary-dark) 0%, #2a5068 100%);
+            color: white;
+            padding: 32px;
+            border-radius: 12px;
+            margin-bottom: 24px;
+            border-bottom: 3px solid var(--primary-color);
+        }
+
+        .admin-header h1 {
+            margin: 0 0 8px 0;
+            font-size: 2rem;
+        }
+
+        .admin-header p {
+            margin: 0;
+            opacity: 0.9;
+        }
+
+        .admin-section {
+            background: var(--surface-color);
+            border-radius: 12px;
+            padding: 24px;
+            margin-bottom: 24px;
+            box-shadow: 0 2px 4px var(--surface-elevation-1);
+        }
+
+        .section-title {
+            font-size: 1.25rem;
+            font-weight: 600;
+            margin-bottom: 16px;
+            color: var(--text-primary);
+        }
+
+        /* ===== ADMIN NAVIGATION ===== */
+        .admin-tabs {
+            display: flex;
+            gap: 8px;
+            margin-bottom: 24px;
+            border-bottom: 2px solid var(--divider-color);
+        }
+
+        .tab-btn {
+            padding: 12px 24px;
+            background: none;
+            border: none;
+            border-bottom: 3px solid transparent;
+            cursor: pointer;
+            font-weight: 500;
+            color: var(--text-secondary);
+            transition: all 0.2s;
+        }
+
+        .tab-btn.active {
+            color: var(--primary-color);
+            border-bottom-color: var(--primary-color);
+        }
+
+        .tab-btn:hover {
+            color: var(--primary-color);
+        }
+
+        .tab-content {
+            display: none;
+        }
+
+        .tab-content.active {
+            display: block;
+        }
+
+        /* ===== BUTTONS ===== */
+        .btn,
+        .btn-primary,
+        .btn-secondary {
+            padding: 8px 16px;
+            border: none;
+            border-radius: 6px;
+            font-size: 0.9rem;
+            font-weight: 500;
+            cursor: pointer;
+            transition: all 0.2s;
+            text-decoration: none;
+            display: inline-block;
+            text-align: center;
+            border: 1px solid transparent;
+        }
+
+        .btn-primary {
+            background: var(--primary-color);
+            color: white;
+            border-color: var(--primary-color);
+        }
+
+        .btn-primary:hover {
+            background: var(--primary-hover);
+            border-color: var(--primary-hover);
+            transform: translateY(-1px);
+        }
+
+        .btn-secondary {
+            background: var(--surface-elevation-1);
+            color: var(--text-primary);
+            border-color: var(--divider-color);
+        }
+
+        .btn-secondary:hover {
+            background: var(--surface-elevation-2);
+            border-color: var(--divider-color);
+            transform: translateY(-1px);
+        }
+
+        .btn:disabled {
+            opacity: 0.6;
+            cursor: not-allowed;
+            transform: none !important;
+        }
+
+        .btn:disabled:hover {
+            background: var(--primary-color) !important;
+            border-color: var(--primary-color) !important;
+        }
+
+        .action-btn {
+            padding: 6px 12px;
+            border: none;
+            border-radius: 6px;
+            font-size: 0.85rem;
+            font-weight: 500;
+            cursor: pointer;
+            transition: all 0.2s ease;
+            margin-right: 8px;
+        }
+
+        .action-btn-primary {
+            background: var(--primary-color);
+            color: white;
+        }
+
+        .action-btn-primary:hover {
+            background: var(--primary-hover);
+        }
+
+        .action-btn-danger {
+            background: #dc3545;
+            color: white;
+        }
+
+        .action-btn-danger:hover {
+            background: #c82333;
+        }
+
+        .action-btn-warning {
+            background: #ffc107;
+            color: #212529;
+        }
+
+        .action-btn-warning:hover {
+            background: #e0a800;
+        }
+
+        /* ===== STATUS BADGES ===== */
+        .badge {
+            display: inline-block;
+            padding: 4px 12px;
+            border-radius: 12px;
+            font-size: 0.8rem;
+            font-weight: 600;
+        }
+
+        .badge-admin {
+            background: var(--primary-color);
+            color: white;
+        }
+
+        .badge-user {
+            background: var(--background-color);
+            color: var(--text-secondary);
+        }
+
+        .badge-active {
+            background: #28a745;
+            color: white;
+        }
+
+        .badge-inactive {
+            background: #6c757d;
+            color: white;
+        }
+
+        .status-badge {
+            display: inline-block;
+            padding: 4px 12px;
+            border-radius: 12px;
+            font-size: 0.85rem;
+            font-weight: 500;
+        }
+
+        .status-enabled, .status-success {
+            background: #d4edda;
+            color: #155724;
+        }
+
+        .status-disabled, .status-error {
+            background: #f8d7da;
+            color: #721c24;
+        }
+
+        .status-running {
+            background: #fff3cd;
+            color: #856404;
+        }
+
+        /* ===== TABLES ===== */
+        .admin-table {
+            background: var(--surface-color);
+            border-radius: 12px;
+            overflow: hidden;
+            box-shadow: 0 2px 4px var(--surface-elevation-1);
+        }
+
+        .admin-table table {
+            width: 100%;
+            border-collapse: collapse;
+        }
+
+        .admin-table th {
+            background: var(--primary-dark);
+            color: white;
+            padding: 16px;
+            text-align: left;
+            font-weight: 600;
+            font-size: 0.9rem;
+            text-transform: uppercase;
+            letter-spacing: 0.5px;
+        }
+
+        .admin-table td {
+            padding: 16px;
+            border-bottom: 1px solid var(--divider-color);
+        }
+
+        .admin-table tr:hover {
+            background: var(--hover-overlay);
+        }
+
+        .admin-table tr:last-child td {
+            border-bottom: none;
+        }
+
+        /* ===== STATS & CARDS ===== */
+        .admin-stats {
+            display: grid;
+            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
+            gap: 16px;
+            margin-bottom: 24px;
+            max-width: 100%;
+        }
+
+        @media (max-width: 768px) {
+            .admin-stats {
+                grid-template-columns: 1fr;
+            }
+        }
+
+        @media (min-width: 1200px) {
+            .admin-stats {
+                grid-template-columns: repeat(4, 1fr);
+            }
+        }
+
+        .stat-card {
+            background: var(--surface-color);
+            padding: 20px;
+            border-radius: 12px;
+            box-shadow: 0 2px 4px var(--surface-elevation-1);
+            border-left: 4px solid var(--primary-color);
+        }
+
+        .stat-number {
+            font-size: 2rem;
+            font-weight: 700;
+            color: var(--primary-color);
+        }
+
+        .stat-label {
+            color: var(--text-secondary);
+            font-size: 0.9rem;
+            margin-top: 4px;
+        }
+
+        .info-card {
+            background: var(--background-color);
+            padding: 16px;
+            border-radius: 8px;
+            border-left: 3px solid var(--primary-color);
+        }
+
+        .info-card h4 {
+            margin: 0 0 8px 0;
+            color: var(--primary-color);
+        }
+
+        .info-card p {
+            margin: 4px 0;
+            font-size: 0.9rem;
+        }
+
+        .system-info {
+            display: grid;
+            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
+            gap: 16px;
+            max-width: 100%;
+        }
+
+        @media (max-width: 768px) {
+            .system-info {
+                grid-template-columns: 1fr;
+            }
+        }
+
+        @media (min-width: 1200px) {
+            .system-info {
+                grid-template-columns: repeat(3, 1fr);
+            }
+        }
+
+        /* ===== FORMS ===== */
+        .form-group {
+            margin-bottom: 16px;
+        }
+
+        .form-group label {
+            display: block;
+            margin-bottom: 4px;
+            font-weight: 500;
+            color: var(--text-primary);
+        }
+
+        .form-control,
+        .form-input {
+            width: 100%;
+            padding: 8px 12px;
+            border: 1px solid var(--divider-color);
+            border-radius: 6px;
+            font-size: 0.9rem;
+            transition: border-color 0.2s ease;
+        }
+
+        .form-control:focus,
+        .form-input:focus {
+            outline: none;
+            border-color: var(--primary-color);
+            box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
+        }
+
+        .form-select {
+            width: 100%;
+            padding: 8px 12px;
+            border: 1px solid var(--divider-color);
+            border-radius: 6px;
+            font-size: 0.9rem;
+            background-color: var(--surface-color);
+            cursor: pointer;
+            transition: border-color 0.2s ease;
+        }
+
+        .form-select:focus {
+            outline: none;
+            border-color: var(--primary-color);
+            box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
+        }
+
+        .form-label {
+            display: block;
+            margin-bottom: 4px;
+            font-weight: 500;
+            color: var(--text-primary);
+        }
+
+        .help-text {
+            margin-top: 4px;
+            font-size: 0.85rem;
+            color: var(--text-secondary);
+        }
+
+        .add-source-form {
+            background: var(--surface-color);
+            border-radius: 12px;
+            padding: 24px;
+            margin-bottom: 24px;
+            border: 1px solid var(--divider-color);
+        }
+
+        .add-source-form h3 {
+            margin: 0 0 20px 0;
+            color: var(--text-primary);
+            font-size: 1.2rem;
+        }
+
+        /* ===== MODALS ===== */
+        .modal-overlay {
+            display: none;
+            position: fixed;
+            top: 0;
+            left: 0;
+            width: 100%;
+            height: 100%;
+            background: rgba(0, 0, 0, 0.5);
+            z-index: 1000;
+            backdrop-filter: blur(2px);
+        }
+
+        .modal-overlay.active {
+            display: flex;
+            align-items: center;
+            justify-content: center;
+        }
+
+        .modal {
+            background: var(--surface-color);
+            border-radius: 12px;
+            padding: 24px;
+            max-width: 500px;
+            width: 90%;
+            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
+            border: 1px solid var(--divider-color);
+            max-height: 80vh;
+            overflow-y: auto;
+        }
+
+        .modal-header {
+            display: flex;
+            justify-content: space-between;
+            align-items: center;
+            margin-bottom: 20px;
+            padding-bottom: 16px;
+            border-bottom: 1px solid var(--divider-color);
+        }
+
+        .modal-title {
+            font-size: 1.25rem;
+            font-weight: 600;
+            color: var(--text-primary);
+            margin: 0;
+        }
+
+        .modal-close {
+            background: none;
+            border: none;
+            font-size: 1.5rem;
+            cursor: pointer;
+            color: var(--text-secondary);
+            padding: 4px;
+            border-radius: 4px;
+            transition: all 0.2s ease;
+        }
+
+        .modal-close:hover {
+            background: var(--surface-elevation-1);
+            color: var(--text-primary);
+        }
+
+        .modal-body {
+            margin-bottom: 20px;
+        }
+
+        .modal-footer {
+            display: flex;
+            gap: 12px;
+            justify-content: flex-end;
+            padding-top: 16px;
+            border-top: 1px solid var(--divider-color);
+        }
+
+        .modal-alert {
+            background: #fff3cd;
+            border: 1px solid #ffeaa7;
+            border-radius: 8px;
+            padding: 12px;
+            margin-bottom: 16px;
+            color: #856404;
+            font-size: 0.9rem;
+        }
+
+        /* ===== UTILITIES ===== */
+        .back-link {
+            display: inline-block;
+            margin-bottom: 16px;
+            color: var(--primary-color);
+            text-decoration: none;
+            font-weight: 500;
+        }
+
+        .back-link:hover {
+            text-decoration: underline;
+        }
+
+        .flash-messages {
+            margin-bottom: 24px;
+        }
+
+        .flash-message {
+            padding: 12px 16px;
+            border-radius: 8px;
+            margin-bottom: 12px;
+        }
+
+        .flash-message.success {
+            background: #d4edda;
+            color: #155724;
+        }
+
+        .flash-message.error {
+            background: #f8d7da;
+            color: #721c24;
+        }
+
+        .flash-message.warning {
+            background: #fff3cd;
+            color: #856404;
+        }
+
+        /* ===== RESPONSIVE ===== */
+        @media (max-width: 768px) {
+            .admin-tabs {
+                overflow-x: auto;
+            }
+            
+            .admin-stats {
+                grid-template-columns: 1fr;
+            }
+            
+            .system-info {
+                grid-template-columns: 1fr;
+            }
+
+            .admin-container {
+                padding: 16px;
+            }
+        }
+
+        /* ===== PAGE-SPECIFIC OVERRIDES ===== */
+        {% block admin_styles %}{% endblock %}
+    </style>
+</head>
+<body>
+    {% include '_nav.html' %}
+    
+    <div class="admin-container">
+        <a href="{{ url_for('index') }}" class="back-link">← Back to Feed</a>
+
+        <div class="admin-header">
+            <h1>{% block page_title %}Admin Panel{% endblock %}</h1>
+            <p>{% block page_description %}Manage system settings and content{% endblock %}</p>
+        </div>
+
+        {% with messages = get_flashed_messages(with_categories=true) %}
+            {% if messages %}
+                <div class="flash-messages">
+                    {% for category, message in messages %}
+                        <div class="flash-message {{ category }}">{{ message }}</div>
+                    {% endfor %}
+                </div>
+            {% endif %}
+        {% endwith %}
+
+        {% block admin_content %}{% endblock %}
+    </div>
+
+    {% block admin_scripts %}{% endblock %}
+</body>
+</html>

templates/_nav.html

@@ -0,0 +1,48 @@
+<!-- Modern Top Navigation -->
+<nav class="top-nav">
+    <div class="nav-content">
+        <div class="nav-left">
+            <a href="{{ url_for('index') }}" class="logo-section">
+                <img src="{{ url_for('serve_logo') }}" alt="{{ APP_NAME }}" class="nav-logo">
+                <span class="brand-text">{{ APP_NAME }}</span>
+            </a>
+        </div>
+
+        <div class="nav-center">
+            <div class="search-bar">
+                <input type="text" placeholder="Search content..." class="search-input">
+                <button class="search-btn">🔍</button>
+            </div>
+        </div>
+
+        <div class="nav-right">
+            {% if current_user.is_authenticated %}
+                <div class="user-menu">
+                    <div class="user-info">
+                        <div class="user-avatar">
+                            {% if current_user.profile_picture_url %}
+                                <img src="{{ current_user.profile_picture_url }}" alt="Avatar">
+                            {% else %}
+                                <div class="avatar-placeholder">{{ current_user.username[:2].upper() }}</div>
+                            {% endif %}
+                        </div>
+                        <span class="username">{{ current_user.username }}</span>
+                    </div>
+                    <div class="user-dropdown">
+                        <a href="{{ url_for('settings') }}" class="dropdown-item">⚙️ Settings</a>
+                        <a href="{{ url_for('bookmarks') }}" class="dropdown-item">📚 Bookmarks</a>
+                        {% if current_user.is_admin %}
+                            <a href="{{ url_for('admin_panel') }}" class="dropdown-item">👨‍💼 Admin Panel</a>
+                        {% endif %}
+                        <a href="{{ url_for('logout') }}" class="dropdown-item">🚪 Logout</a>
+                    </div>
+                </div>
+            {% else %}
+                <div class="anonymous-actions">
+                    <a href="{{ url_for('login') }}" class="login-btn">🔑 Login</a>
+                    <a href="{{ url_for('signup') }}" class="register-btn">📝 Sign Up</a>
+                </div>
+            {% endif %}
+        </div>
+    </div>
+</nav>

templates/admin.html

@@ -1,316 +1,12 @@
-<!DOCTYPE html>
+{% extends "_admin_base.html" %}
-<html lang="en">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Admin Panel - BalanceBoard</title>
-    <link rel="stylesheet" href="{{ url_for('serve_theme', filename='modern-card-ui/styles.css') }}">
-    <style>
-        .admin-container {
-            max-width: 1400px;
-            margin: 0 auto;
-            padding: 24px;
-        }
 
-        .admin-header {
+{% block title %}Admin Panel - {{ APP_NAME }}{% endblock %}
-            background: linear-gradient(135deg, var(--primary-dark) 0%, #2a5068 100%);
-            color: white;
-            padding: 32px;
-            border-radius: 12px;
-            margin-bottom: 24px;
-            border-bottom: 3px solid var(--primary-color);
-        }
 
-        .admin-header h1 {
+{% block page_title %}Admin Panel{% endblock %}
-            margin: 0 0 8px 0;
+{% block page_description %}Manage users, content, and system settings{% endblock %}
-            font-size: 2rem;
-        }
 
-        .admin-header p {
+{% block admin_styles %}
-            margin: 0;
+.user-avatar {
-            opacity: 0.9;
-        }
-
-        .admin-tabs {
-            display: flex;
-            gap: 8px;
-            margin-bottom: 24px;
-            border-bottom: 2px solid var(--divider-color);
-        }
-
-        .tab-btn {
-            padding: 12px 24px;
-            background: none;
-            border: none;
-            border-bottom: 3px solid transparent;
-            cursor: pointer;
-            font-weight: 500;
-            color: var(--text-secondary);
-            transition: all 0.2s;
-        }
-
-        .tab-btn.active {
-            color: var(--primary-color);
-            border-bottom-color: var(--primary-color);
-        }
-
-        .tab-btn:hover {
-            color: var(--primary-color);
-        }
-
-        .tab-content {
-            display: none;
-        }
-
-        .tab-content.active {
-            display: block;
-        }
-
-        .admin-stats {
-            display: grid;
-            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
-            gap: 16px;
-            margin-bottom: 24px;
-        }
-
-        .stat-card {
-            background: var(--surface-color);
-            padding: 20px;
-            border-radius: 12px;
-            box-shadow: 0 2px 4px var(--surface-elevation-1);
-            border-left: 4px solid var(--primary-color);
-        }
-
-        .stat-number {
-            font-size: 2rem;
-            font-weight: 700;
-            color: var(--primary-color);
-        }
-
-        .stat-label {
-            color: var(--text-secondary);
-            font-size: 0.9rem;
-            margin-top: 4px;
-        }
-
-        .admin-section {
-            background: var(--surface-color);
-            border-radius: 12px;
-            padding: 24px;
-            margin-bottom: 24px;
-            box-shadow: 0 2px 4px var(--surface-elevation-1);
-        }
-
-        .section-title {
-            font-size: 1.25rem;
-            font-weight: 600;
-            margin-bottom: 16px;
-            color: var(--text-primary);
-        }
-
-        .users-table {
-            background: var(--surface-color);
-            border-radius: 12px;
-            overflow: hidden;
-            box-shadow: 0 2px 4px var(--surface-elevation-1);
-        }
-
-        .users-table table {
-            width: 100%;
-            border-collapse: collapse;
-        }
-
-        .users-table th {
-            background: var(--primary-dark);
-            color: white;
-            padding: 16px;
-            text-align: left;
-            font-weight: 600;
-            font-size: 0.9rem;
-            text-transform: uppercase;
-            letter-spacing: 0.5px;
-        }
-
-        .users-table td {
-            padding: 16px;
-            border-bottom: 1px solid var(--divider-color);
-        }
-
-        .users-table tr:hover {
-            background: var(--hover-overlay);
-        }
-
-        .badge {
-            display: inline-block;
-            padding: 4px 12px;
-            border-radius: 12px;
-            font-size: 0.8rem;
-            font-weight: 600;
-        }
-
-        .badge-admin {
-            background: var(--primary-color);
-            color: white;
-        }
-
-        .badge-user {
-            background: var(--background-color);
-            color: var(--text-secondary);
-        }
-
-        .badge-active {
-            background: #28a745;
-            color: white;
-        }
-
-        .badge-inactive {
-            background: #6c757d;
-            color: white;
-        }
-
-        .action-btn {
-            padding: 6px 12px;
-            border: none;
-            border-radius: 6px;
-            font-size: 0.85rem;
-            font-weight: 500;
-            cursor: pointer;
-            transition: all 0.2s ease;
-            margin-right: 8px;
-        }
-
-        .action-btn-primary {
-            background: var(--primary-color);
-            color: white;
-        }
-
-        .action-btn-primary:hover {
-            background: var(--primary-hover);
-        }
-
-        .action-btn-danger {
-            background: #dc3545;
-            color: white;
-        }
-
-        .action-btn-danger:hover {
-            background: #c82333;
-        }
-
-        .action-btn-warning {
-            background: #ffc107;
-            color: #212529;
-        }
-
-        .action-btn-warning:hover {
-            background: #e0a800;
-        }
-
-        .back-link {
-            display: inline-block;
-            margin-bottom: 16px;
-            color: var(--primary-color);
-            text-decoration: none;
-            font-weight: 500;
-        }
-
-        .back-link:hover {
-            text-decoration: underline;
-        }
-
-        .flash-messages {
-            margin-bottom: 24px;
-        }
-
-        .flash-message {
-            padding: 12px 16px;
-            border-radius: 8px;
-            margin-bottom: 12px;
-        }
-
-        .flash-message.success {
-            background: #d4edda;
-            color: #155724;
-        }
-
-        .flash-message.error {
-            background: #f8d7da;
-            color: #721c24;
-        }
-
-        .flash-message.warning {
-            background: #fff3cd;
-            color: #856404;
-        }
-
-        .system-info {
-            display: grid;
-            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
-            gap: 16px;
-        }
-
-        .info-card {
-            background: var(--background-color);
-            padding: 16px;
-            border-radius: 8px;
-            border-left: 3px solid var(--primary-color);
-        }
-
-        .info-card h4 {
-            margin: 0 0 8px 0;
-            color: var(--primary-color);
-        }
-
-        .info-card p {
-            margin: 4px 0;
-            font-size: 0.9rem;
-        }
-
-        .form-group {
-            margin-bottom: 16px;
-        }
-
-        .form-group label {
-            display: block;
-            margin-bottom: 4px;
-            font-weight: 500;
-            color: var(--text-primary);
-        }
-
-        .form-control {
-            width: 100%;
-            padding: 8px 12px;
-            border: 1px solid var(--divider-color);
-            border-radius: 6px;
-            font-size: 0.9rem;
-        }
-
-        .form-control:focus {
-            outline: none;
-            border-color: var(--primary-color);
-            box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
-        }
-
-        .btn {
-            padding: 8px 16px;
-            border: none;
-            border-radius: 6px;
-            font-size: 0.9rem;
-            font-weight: 500;
-            cursor: pointer;
-            transition: all 0.2s;
-        }
-
-        .btn-primary {
-            background: var(--primary-color);
-            color: white;
-        }
-
-        .btn-primary:hover {
-            background: var(--primary-hover);
-        }
-
-        .user-avatar {
     width: 32px;
     height: 32px;
     border-radius: 50%;
@@ -322,46 +18,15 @@
     font-weight: 600;
     font-size: 0.8rem;
     margin-right: 8px;
-        }
+}
 
-        .user-info {
+.user-info {
     display: flex;
     align-items: center;
-        }
+}
+{% endblock %}
 
-        @media (max-width: 768px) {
+{% block admin_content %}
-            .admin-tabs {
-                overflow-x: auto;
-            }
-            
-            .admin-stats {
-                grid-template-columns: 1fr;
-            }
-            
-            .system-info {
-                grid-template-columns: 1fr;
-            }
-        }
-    </style>
-</head>
-<body>
-    <div class="admin-container">
-        <a href="{{ url_for('index') }}" class="back-link">← Back to Feed</a>
-
-        <div class="admin-header">
-            <h1>Admin Panel</h1>
-            <p>Manage users, content, and system settings</p>
-        </div>
-
-        {% with messages = get_flashed_messages(with_categories=true) %}
-            {% if messages %}
-                <div class="flash-messages">
-                    {% for category, message in messages %}
-                        <div class="flash-message {{ category }}">{{ message }}</div>
-                    {% endfor %}
-                </div>
-            {% endif %}
-        {% endwith %}
 
         <div class="admin-tabs">
             <button class="tab-btn active" onclick="showTab('overview')">Overview</button>
@@ -425,7 +90,7 @@
         <div id="users" class="tab-content">
             <div class="admin-section">
                 <h3 class="section-title">User Management</h3>
-                <div class="users-table">
+                <div class="admin-table">
                     <table>
                         <thead>
                             <tr>
@@ -506,16 +171,6 @@
                     </div>
                 </div>
             </div>
-
-            <div class="admin-section">
-                <h3 class="section-title">Content Actions</h3>
-                <form method="POST" action="{{ url_for('admin_regenerate_content') }}">
-                    <button type="submit" class="btn btn-primary">Regenerate All Content</button>
-                    <p style="margin-top: 8px; font-size: 0.85rem; color: var(--text-secondary);">
-                        This will regenerate all HTML files with current templates and filters.
-                    </p>
-                </form>
-            </div>
         </div>
 
         <!-- System Tab -->
@@ -556,10 +211,11 @@
                 </div>
             </div>
         </div>
-    </div>
+{% endblock %}
 
-    <script>
+{% block admin_scripts %}
-        function showTab(tabName) {
+<script>
+function showTab(tabName) {
     // Hide all tabs
     const tabs = document.querySelectorAll('.tab-content');
     tabs.forEach(tab => tab.classList.remove('active'));
@@ -573,7 +229,6 @@
     
     // Add active class to clicked button
     event.target.classList.add('active');
-        }
+}
-    </script>
+</script>
-</body>
+{% endblock %}
-</html>

templates/admin_polling.html

@@ -1,52 +1,11 @@
-<!DOCTYPE html>
+{% extends "_admin_base.html" %}
-<html lang="en">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Polling Management - Admin - BalanceBoard</title>
-    <link rel="stylesheet" href="{{ url_for('serve_theme', filename='modern-card-ui/styles.css') }}">
-    <style>
-        .admin-container {
-            max-width: 1400px;
-            margin: 0 auto;
-            padding: 24px;
-        }
 
-        .admin-header {
+{% block title %}Polling Management - Admin - {{ APP_NAME }}{% endblock %}
-            background: linear-gradient(135deg, var(--primary-dark) 0%, #2a5068 100%);
-            color: white;
-            padding: 32px;
-            border-radius: 12px;
-            margin-bottom: 24px;
-        }
 
-        .status-badge {
+{% block page_title %}Polling Management{% endblock %}
-            display: inline-block;
+{% block page_description %}Manage data collection sources and schedules{% endblock %}
-            padding: 4px 12px;
-            border-radius: 12px;
-            font-size: 0.85rem;
-            font-weight: 500;
-        }
 
-        .status-enabled {
+{% block admin_styles %}
-            background: #d4edda;
-            color: #155724;
-        }
-
-        .status-disabled {
-            background: #f8d7da;
-            color: #721c24;
-        }
-
-        .status-success {
-            background: #d4edda;
-            color: #155724;
-        }
-
-        .status-error {
-            background: #f8d7da;
-            color: #721c24;
-        }
 
         .source-card {
             background: var(--surface-color);
@@ -174,22 +133,62 @@
             padding: 48px;
             color: var(--text-secondary);
         }
-    </style>
-</head>
-<body>
-    <div class="admin-container">
-        <div class="admin-header">
-            <h1>📡 Polling Management</h1>
-            <p>Configure automatic data collection from content sources</p>
-        </div>
 
-        {% with messages = get_flashed_messages(with_categories=true) %}
+        .add-source-form {
-            {% if messages %}
+            background: var(--surface-color);
-                {% for category, message in messages %}
+            border: 1px solid var(--divider-color);
-                    <div class="alert alert-{{ category }}">{{ message }}</div>
+            border-radius: 12px;
-                {% endfor %}
+            padding: 24px;
-            {% endif %}
+            margin-bottom: 24px;
-        {% endwith %}
+        }
+
+        .form-label {
+            display: block;
+            margin-bottom: 8px;
+            font-weight: 500;
+            color: var(--text-primary);
+        }
+
+        .form-input, .form-select {
+            width: 100%;
+            padding: 10px;
+            border: 1px solid var(--divider-color);
+            border-radius: 6px;
+            font-size: 1rem;
+        }
+
+        .scheduler-status {
+            background: var(--surface-color);
+            border: 1px solid var(--divider-color);
+            border-radius: 12px;
+            padding: 16px;
+            margin-bottom: 24px;
+        }
+
+        .help-text {
+            font-size: 0.85rem;
+            color: var(--text-secondary);
+            margin-top: 4px;
+        }
+
+        .alert {
+            padding: 12px 16px;
+            border-radius: 8px;
+            margin-bottom: 12px;
+        }
+
+        .alert-success {
+            background: #d4edda;
+            color: #155724;
+        }
+
+        .alert-error {
+            background: #f8d7da;
+            color: #721c24;
+        }
+{% endblock %}
+
+{% block admin_content %}
 
         <!-- Scheduler Status -->
         <div class="scheduler-status">
@@ -497,6 +496,58 @@
         function closeEditModal() {
             document.getElementById('edit-modal').style.display = 'none';
         }
-    </script>
+{% endblock %}
-</body>
+
-</html>
+{% block admin_scripts %}
+<script>
+    const platformConfig = {{ platform_config|tojson|safe }};
+
+    function updateSourceOptions() {
+        const platformSelect = document.getElementById('platform');
+        const sourceSelect = document.getElementById('source_id');
+        const selectedPlatform = platformSelect.value;
+
+        // Clear existing options
+        sourceSelect.innerHTML = '<option value="">Select source...</option>';
+
+        if (selectedPlatform && platformConfig.platforms[selectedPlatform]) {
+            const communities = platformConfig.platforms[selectedPlatform].communities || [];
+            communities.forEach(community => {
+                const option = document.createElement('option');
+                option.value = community.id;
+                option.textContent = community.display_name || community.name;
+                option.dataset.displayName = community.display_name || community.name;
+                sourceSelect.appendChild(option);
+            });
+        }
+    }
+
+    function updateDisplayName() {
+        const sourceSelect = document.getElementById('source_id');
+        const displayNameInput = document.getElementById('display_name');
+        const selectedOption = sourceSelect.options[sourceSelect.selectedIndex];
+
+        if (selectedOption && selectedOption.dataset.displayName) {
+            displayNameInput.value = selectedOption.dataset.displayName;
+        }
+    }
+
+    function openEditModal(sourceId, displayName, interval, maxPosts, fetchComments, priority) {
+        // Fill form with current values
+        const modal2 = document.getElementById('edit-modal');
+        const form = document.getElementById('edit-form');
+        form.action = `/admin/polling/${sourceId}/update`;
+        document.getElementById('edit_display_name').value = displayName;
+        document.getElementById('edit_interval').value = interval;
+        document.getElementById('edit_max_posts').value = maxPosts;
+        document.getElementById('edit_fetch_comments').value = fetchComments;
+        document.getElementById('edit_priority').value = priority;
+
+        modal2.style.display = 'block';
+    }
+
+    function closeEditModal() {
+        document.getElementById('edit-modal').style.display = 'none';
+    }
+</script>
+{% endblock %}

templates/admin_polling_logs.html

@@ -1,74 +1,12 @@
-<!DOCTYPE html>
+{% extends "_admin_base.html" %}
-<html lang="en">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Polling Logs - {{ source.display_name }} - Admin</title>
-    <link rel="stylesheet" href="{{ url_for('serve_theme', filename='modern-card-ui/styles.css') }}">
-    <style>
-        .admin-container {
-            max-width: 1400px;
-            margin: 0 auto;
-            padding: 24px;
-        }
 
-        .admin-header {
+{% block title %}Polling Logs - {{ source.display_name }} - Admin{% endblock %}
-            background: linear-gradient(135deg, var(--primary-dark) 0%, #2a5068 100%);
-            color: white;
-            padding: 32px;
-            border-radius: 12px;
-            margin-bottom: 24px;
-        }
 
-        .log-table {
+{% block page_title %}Polling Logs - {{ source.display_name }}{% endblock %}
-            width: 100%;
+{% block page_description %}View polling history and error logs for this source{% endblock %}
-            border-collapse: collapse;
-            background: var(--surface-color);
-            border-radius: 12px;
-            overflow: hidden;
-        }
 
-        .log-table th {
+{% block admin_styles %}
-            background: var(--primary-color);
+.error-detail {
-            color: white;
-            padding: 12px;
-            text-align: left;
-            font-weight: 600;
-        }
-
-        .log-table td {
-            padding: 12px;
-            border-bottom: 1px solid var(--divider-color);
-        }
-
-        .log-table tr:last-child td {
-            border-bottom: none;
-        }
-
-        .status-badge {
-            display: inline-block;
-            padding: 4px 12px;
-            border-radius: 12px;
-            font-size: 0.85rem;
-            font-weight: 500;
-        }
-
-        .status-success {
-            background: #d4edda;
-            color: #155724;
-        }
-
-        .status-error {
-            background: #f8d7da;
-            color: #721c24;
-        }
-
-        .status-running {
-            background: #fff3cd;
-            color: #856404;
-        }
-
-        .error-detail {
     background: #fff3cd;
     padding: 12px;
     border-radius: 6px;
@@ -77,74 +15,33 @@
     white-space: pre-wrap;
     max-height: 200px;
     overflow-y: auto;
-        }
+}
 
-        .btn {
+.no-logs {
-            padding: 8px 16px;
-            border: none;
-            border-radius: 6px;
-            cursor: pointer;
-            font-weight: 500;
-            text-decoration: none;
-            display: inline-block;
-            transition: all 0.2s;
-        }
-
-        .btn-secondary {
-            background: var(--divider-color);
-            color: var(--text-primary);
-        }
-
-        .btn-secondary:hover {
-            background: #d0d0d0;
-        }
-
-        .no-logs {
     text-align: center;
     padding: 48px;
     color: var(--text-secondary);
-        }
+}
-    </style>
+{% endblock %}
-</head>
-<body>
-    <div class="admin-container">
-        <div class="admin-header">
-            <h1>📋 Polling Logs</h1>
-            <p>{{ source.display_name }} ({{ source.platform}}:{{ source.source_id }})</p>
-        </div>
 
+{% block admin_content %}
+<div class="admin-table">
     {% if logs %}
-            <table class="log-table">
+        <table>
             <thead>
                 <tr>
-                        <th>Started</th>
+                    <th>Timestamp</th>
-                        <th>Completed</th>
-                        <th>Duration</th>
                     <th>Status</th>
                     <th>Posts Found</th>
-                        <th>New</th>
+                    <th>New Posts</th>
-                        <th>Updated</th>
+                    <th>Updated Posts</th>
-                        <th>Details</th>
+                    <th>Error Details</th>
                 </tr>
             </thead>
             <tbody>
                 {% for log in logs %}
                     <tr>
-                            <td>{{ log.started_at.strftime('%Y-%m-%d %H:%M:%S') }}</td>
+                        <td>{{ log.poll_time.strftime('%Y-%m-%d %H:%M:%S') }}</td>
-                            <td>
-                                {% if log.completed_at %}
-                                    {{ log.completed_at.strftime('%Y-%m-%d %H:%M:%S') }}
-                                {% else %}
-                                    -
-                                {% endif %}
-                            </td>
-                            <td>
-                                {% if log.completed_at %}
-                                    {{ ((log.completed_at - log.started_at).total_seconds())|round(1) }}s
-                                {% else %}
-                                    -
-                                {% endif %}
-                            </td>
                         <td>
                             {% if log.status == 'success' %}
                                 <span class="status-badge status-success">Success</span>
@@ -179,10 +76,9 @@
             <p>Logs will appear here after the first poll.</p>
         </div>
     {% endif %}
+</div>
 
-        <div style="margin-top: 24px;">
+<div style="margin-top: 24px;">
     <a href="{{ url_for('admin_polling') }}" class="btn btn-secondary">← Back to Polling Management</a>
-        </div>
+</div>
-    </div>
+{% endblock %}
-</body>
-</html>

templates/admin_setup.html

@@ -1,12 +1,15 @@
 {% extends "base.html" %}
 
-{% block title %}Create Admin Account - BalanceBoard{% endblock %}
+{% block title %}Create Admin Account - {{ APP_NAME }}{% endblock %}
 
 {% block content %}
+{% include '_nav.html' %}
 <div class="auth-container">
     <div class="auth-card">
         <div class="auth-logo">
-            <img src="{{ url_for('serve_logo') }}" alt="BalanceBoard Logo">
+            <a href="{{ url_for('index') }}">
+                <img src="{{ url_for('serve_logo') }}" alt="{{ APP_NAME }} Logo" style="max-width: 80px; border-radius: 50%;">
+            </a>
             <h1><span class="balance">balance</span><span class="board">Board</span></h1>
             <p style="color: var(--text-secondary); margin-top: 8px;">Create Administrator Account</p>
         </div>
@@ -74,5 +77,60 @@
     .board {
         color: var(--text-primary);
     }
+
+    /* Ensure form styles are properly applied */
+    .auth-form .form-group {
+        margin-bottom: 20px;
+    }
+
+    .auth-form label {
+        display: block;
+        margin-bottom: 8px;
+        font-weight: 500;
+        color: var(--text-primary);
+        font-size: 0.95rem;
+    }
+
+    .auth-form input {
+        width: 100%;
+        padding: 12px 16px;
+        border: 2px solid var(--border-color);
+        border-radius: 8px;
+        font-size: 1rem;
+        background: var(--background-color);
+        color: var(--text-primary);
+        transition: all 0.2s ease;
+        box-sizing: border-box;
+    }
+
+    .auth-form input:focus {
+        outline: none;
+        border-color: var(--primary-color);
+        box-shadow: 0 0 0 3px rgba(77, 182, 172, 0.1);
+    }
+
+    .auth-form button {
+        width: 100%;
+        padding: 14px;
+        background: var(--primary-color);
+        color: white;
+        border: none;
+        border-radius: 8px;
+        font-size: 1rem;
+        font-weight: 600;
+        cursor: pointer;
+        transition: all 0.2s ease;
+    }
+
+    .auth-form button:hover {
+        background: var(--primary-hover);
+        transform: translateY(-1px);
+        box-shadow: 0 4px 12px rgba(77, 182, 172, 0.3);
+    }
+
+    .auth-footer {
+        margin-top: 24px;
+        text-align: center;
+    }
 </style>
 {% endblock %}

templates/base.html

@@ -3,7 +3,7 @@
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>{% block title %}BalanceBoard{% endblock %}</title>
+    <title>{% block title %}{{ APP_NAME }}{% endblock %}</title>
     <link rel="stylesheet" href="{{ url_for('serve_theme', filename='modern-card-ui/styles.css') }}">
     <style>
         /* Auth pages styling */

templates/bookmarks.html

@@ -0,0 +1,272 @@
+{% extends "base.html" %}
+
+{% block title %}Bookmarks - {{ APP_NAME }}{% endblock %}
+
+{% block content %}
+{% include '_nav.html' %}
+
+<div style="max-width: 1200px; margin: 0 auto; padding: 24px;">
+    <div style="margin-bottom: 32px;">
+        <h1 style="color: var(--text-primary); margin-bottom: 8px;">📚 Your Bookmarks</h1>
+        <p style="color: var(--text-secondary); font-size: 1.1rem;">Posts you've saved for later reading</p>
+    </div>
+
+    <div id="bookmarks-container">
+        <div id="loading" style="text-align: center; padding: 40px; color: var(--text-secondary);">
+            <div style="font-size: 1.2rem;">Loading your bookmarks...</div>
+        </div>
+    </div>
+
+    <!-- Pagination -->
+    <div id="pagination" style="display: none; text-align: center; margin-top: 32px;">
+        <button id="prev-btn" style="padding: 8px 16px; margin: 0 8px; background: var(--surface-elevation-1); border: 1px solid var(--border-color); border-radius: 6px; color: var(--text-primary); cursor: pointer;">← Previous</button>
+        <span id="page-info" style="margin: 0 16px; color: var(--text-secondary);"></span>
+        <button id="next-btn" style="padding: 8px 16px; margin: 0 8px; background: var(--surface-elevation-1); border: 1px solid var(--border-color); border-radius: 6px; color: var(--text-primary); cursor: pointer;">Next →</button>
+    </div>
+</div>
+
+<style>
+.bookmark-item {
+    background: var(--surface-color);
+    border: 1px solid var(--border-color);
+    border-radius: 12px;
+    padding: 20px;
+    margin-bottom: 16px;
+    transition: all 0.2s ease;
+}
+
+.bookmark-item:hover {
+    border-color: var(--primary-color);
+    transform: translateY(-1px);
+    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
+}
+
+.bookmark-item.archived {
+    opacity: 0.6;
+    border-style: dashed;
+}
+
+.bookmark-header {
+    display: flex;
+    justify-content: between;
+    align-items: flex-start;
+    margin-bottom: 12px;
+}
+
+.bookmark-title {
+    color: var(--text-primary);
+    font-size: 1.2rem;
+    font-weight: 600;
+    text-decoration: none;
+    flex: 1;
+    margin-right: 12px;
+}
+
+.bookmark-title:hover {
+    color: var(--primary-color);
+}
+
+.bookmark-remove {
+    background: var(--error-color);
+    color: white;
+    border: none;
+    border-radius: 6px;
+    padding: 6px 12px;
+    font-size: 0.85rem;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+.bookmark-remove:hover {
+    background: var(--error-hover);
+}
+
+.bookmark-meta {
+    display: flex;
+    gap: 16px;
+    margin-bottom: 8px;
+    font-size: 0.9rem;
+    color: var(--text-secondary);
+}
+
+.bookmark-meta span {
+    display: flex;
+    align-items: center;
+    gap: 4px;
+}
+
+.bookmark-preview {
+    color: var(--text-secondary);
+    line-height: 1.5;
+    margin-bottom: 12px;
+}
+
+.bookmark-date {
+    font-size: 0.85rem;
+    color: var(--text-tertiary);
+}
+
+.empty-state {
+    text-align: center;
+    padding: 60px 20px;
+    color: var(--text-secondary);
+}
+
+.empty-state h3 {
+    font-size: 1.3rem;
+    margin-bottom: 8px;
+    color: var(--text-primary);
+}
+
+.error-state {
+    text-align: center;
+    padding: 40px 20px;
+    color: var(--error-color);
+    background: var(--error-bg);
+    border-radius: 8px;
+    margin: 20px 0;
+}
+</style>
+
+<script>
+let currentPage = 1;
+let pagination = null;
+
+async function loadBookmarks(page = 1) {
+    try {
+        document.getElementById('loading').style.display = 'block';
+        
+        const response = await fetch(`/api/v1/bookmarks?page=${page}&per_page=20`);
+        const data = await response.json();
+        
+        if (!response.ok) {
+            throw new Error(data.error || 'Failed to load bookmarks');
+        }
+        
+        renderBookmarks(data.posts);
+        updatePagination(data.pagination);
+        currentPage = page;
+        
+    } catch (error) {
+        console.error('Error loading bookmarks:', error);
+        document.getElementById('bookmarks-container').innerHTML = `
+            <div class="error-state">
+                <h3>Error loading bookmarks</h3>
+                <p>${error.message}</p>
+                <button onclick="loadBookmarks()" style="margin-top: 12px; padding: 8px 16px; background: var(--primary-color); color: white; border: none; border-radius: 6px; cursor: pointer;">Retry</button>
+            </div>
+        `;
+    }
+}
+
+function renderBookmarks(posts) {
+    document.getElementById('loading').style.display = 'none';
+    
+    const container = document.getElementById('bookmarks-container');
+    
+    if (posts.length === 0) {
+        container.innerHTML = `
+            <div class="empty-state">
+                <h3>📚 No bookmarks yet</h3>
+                <p>Start exploring and bookmark posts you want to read later!</p>
+                <a href="/" style="display: inline-block; margin-top: 16px; padding: 12px 24px; background: var(--primary-color); color: white; text-decoration: none; border-radius: 8px;">Browse Posts</a>
+            </div>
+        `;
+        return;
+    }
+    
+    container.innerHTML = posts.map(post => `
+        <div class="bookmark-item ${post.archived ? 'archived' : ''}">
+            <div class="bookmark-header">
+                <a href="${post.url}" class="bookmark-title">${post.title}</a>
+                <button class="bookmark-remove" onclick="removeBookmark('${post.id}', this)">
+                    🗑️ Remove
+                </button>
+            </div>
+            
+            <div class="bookmark-meta">
+                <span>👤 ${post.author}</span>
+                <span>📍 ${post.source}</span>
+                <span>⭐ ${post.score}</span>
+                <span>💬 ${post.comments_count}</span>
+                ${post.archived ? '<span style="color: var(--warning-color);">📦 Archived</span>' : ''}
+            </div>
+            
+            <div class="bookmark-preview">${post.content_preview}</div>
+            
+            <div class="bookmark-date">
+                Bookmarked on ${new Date(post.bookmarked_at).toLocaleDateString()}
+            </div>
+        </div>
+    `).join('');
+}
+
+function updatePagination(paginationData) {
+    pagination = paginationData;
+    const paginationEl = document.getElementById('pagination');
+    
+    if (paginationData.total_pages <= 1) {
+        paginationEl.style.display = 'none';
+        return;
+    }
+    
+    paginationEl.style.display = 'block';
+    
+    document.getElementById('prev-btn').disabled = !paginationData.has_prev;
+    document.getElementById('next-btn').disabled = !paginationData.has_next;
+    document.getElementById('page-info').textContent = `Page ${paginationData.current_page} of ${paginationData.total_pages}`;
+}
+
+async function removeBookmark(postId, button) {
+    if (!confirm('Are you sure you want to remove this bookmark?')) {
+        return;
+    }
+    
+    try {
+        button.disabled = true;
+        button.textContent = 'Removing...';
+        
+        const response = await fetch('/api/v1/bookmark', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+            },
+            body: JSON.stringify({ post_uuid: postId })
+        });
+        
+        const data = await response.json();
+        
+        if (!response.ok) {
+            throw new Error(data.error || 'Failed to remove bookmark');
+        }
+        
+        // Reload bookmarks to reflect changes
+        loadBookmarks(currentPage);
+        
+    } catch (error) {
+        console.error('Error removing bookmark:', error);
+        alert('Error removing bookmark: ' + error.message);
+        button.disabled = false;
+        button.textContent = '🗑️ Remove';
+    }
+}
+
+// Pagination event listeners
+document.getElementById('prev-btn').addEventListener('click', () => {
+    if (pagination && pagination.has_prev) {
+        loadBookmarks(currentPage - 1);
+    }
+});
+
+document.getElementById('next-btn').addEventListener('click', () => {
+    if (pagination && pagination.has_next) {
+        loadBookmarks(currentPage + 1);
+    }
+});
+
+// Load bookmarks on page load
+document.addEventListener('DOMContentLoaded', () => {
+    loadBookmarks();
+});
+</script>
+{% endblock %}

templates/dashboard.html

@@ -1,55 +1,9 @@
 {% extends "base.html" %}
 
-{% block title %}Dashboard - BalanceBoard{% endblock %}
+{% block title %}Dashboard - {{ APP_NAME }}{% endblock %}
 
 {% block content %}
-<!-- Modern Top Navigation -->
+{% include '_nav.html' %}
-<nav class="top-nav">
-    <div class="nav-content">
-        <div class="nav-left">
-            <div class="logo-section">
-                <img src="{{ url_for('serve_logo') }}" alt="BalanceBoard" class="nav-logo">
-                <span class="brand-text"><span class="brand-balance">balance</span><span class="brand-board">Board</span></span>
-            </div>
-        </div>
-        
-        <div class="nav-center">
-            <div class="search-bar">
-                <input type="text" placeholder="Search content..." class="search-input">
-                <button class="search-btn">🔍</button>
-            </div>
-        </div>
-        
-        <div class="nav-right">
-            {% if anonymous %}
-                <div class="anonymous-actions">
-                    <a href="{{ url_for('login') }}" class="login-btn">🔑 Login</a>
-                    <a href="{{ url_for('register') }}" class="register-btn">📝 Sign Up</a>
-                </div>
-            {% else %}
-                <div class="user-menu">
-                    <div class="user-info">
-                        <div class="user-avatar">
-                            {% if current_user.profile_picture_url %}
-                                <img src="{{ current_user.profile_picture_url }}" alt="Avatar">
-                            {% else %}
-                                <div class="avatar-placeholder">{{ current_user.username[:2].upper() }}</div>
-                            {% endif %}
-                        </div>
-                        <span class="username">{{ current_user.username }}</span>
-                    </div>
-                    <div class="user-dropdown">
-                        <a href="{{ url_for('settings') }}" class="dropdown-item">⚙️ Settings</a>
-                        {% if current_user.is_admin %}
-                            <a href="{{ url_for('admin_panel') }}" class="dropdown-item">👨‍💼 Admin Panel</a>
-                        {% endif %}
-                        <a href="{{ url_for('logout') }}" class="dropdown-item">🚪 Logout</a>
-                    </div>
-                </div>
-            {% endif %}
-        </div>
-    </div>
-</nav>
 
 <!-- Main Content Area -->
 <main class="main-content">
@@ -57,17 +11,9 @@
     <aside class="sidebar">
         <div class="sidebar-section">
             <h3>Content Filters</h3>
-            <div class="filter-item active" data-filter="no_filter">
+            <div id="filter-list" class="filter-list">
-                <span class="filter-icon">🌐</span>
+                <!-- Filters will be loaded dynamically -->
-                <span>All Content</span>
+                <div class="loading-filters">Loading filters...</div>
-            </div>
-            <div class="filter-item" data-filter="safe_content">
-                <span class="filter-icon">✅</span>
-                <span>Safe Content</span>
-            </div>
-            <div class="filter-item" data-filter="custom">
-                <span class="filter-icon">🎯</span>
-                <span>Custom Filter</span>
             </div>
         </div>
         
@@ -83,7 +29,7 @@
             <h3>Quick Stats</h3>
             <div class="stats-grid">
                 <div class="stat-card">
-                    <div class="stat-number">156</div>
+                    <div class="stat-number">{{ quick_stats.posts_today if quick_stats else 0 }}</div>
                     <div class="stat-label">Posts Today</div>
                 </div>
                 <div class="stat-card">
@@ -357,14 +303,14 @@
     font-weight: 500;
 }
 
-.loading-communities {
+.loading-communities, .loading-filters {
     text-align: center;
     color: #64748b;
     font-style: italic;
     padding: 20px;
 }
 
-.no-communities {
+.no-communities, .no-filters {
     text-align: center;
     color: #64748b;
     font-style: italic;
@@ -447,6 +393,24 @@
     transform: translateY(-1px);
 }
 
+.clear-search-btn {
+    background: #f1f5f9;
+    color: #64748b;
+    border: 1px solid #e2e8f0;
+    padding: 10px 20px;
+    border-radius: 8px;
+    cursor: pointer;
+    font-size: 14px;
+    font-weight: 500;
+    transition: all 0.2s ease;
+}
+
+.clear-search-btn:hover {
+    background: #e2e8f0;
+    color: #2c3e50;
+    transform: translateY(-1px);
+}
+
 .feed-container {
     padding: 0;
 }
@@ -723,9 +687,11 @@ let postsData = [];
 let currentPage = 1;
 let currentCommunity = '';
 let currentPlatform = '';
+let currentFilter = 'no_filter';
 let paginationData = {};
 let platformConfig = {};
 let communitiesData = [];
+let filtersData = [];
 
 // User experience settings
 let userSettings = {{ user_settings|tojson }};
@@ -733,8 +699,8 @@ let userSettings = {{ user_settings|tojson }};
 // Load posts on page load
 document.addEventListener('DOMContentLoaded', function() {
     loadPlatformConfig();
+    loadFilters();
     loadPosts();
-    setupFilterSwitching();
     setupInfiniteScroll();
     setupAutoRefresh();
 });
@@ -742,34 +708,94 @@ document.addEventListener('DOMContentLoaded', function() {
 // Load platform configuration and communities
 async function loadPlatformConfig() {
     try {
-        const response = await fetch('/api/platforms');
+        const response = await fetch('/api/v1/platforms');
+        if (!response.ok) {
+            throw new Error(`HTTP error! status: ${response.status}`);
+        }
         const data = await response.json();
         platformConfig = data.platforms || {};
         communitiesData = data.communities || [];
 
+        console.log('Loaded communities:', communitiesData);
         renderCommunities(communitiesData);
         setupCommunityFiltering();
     } catch (error) {
         console.error('Error loading platform configuration:', error);
         // Show fallback communities
         const fallbackCommunities = [
-            {platform: 'reddit', id: 'programming', display_name: 'r/programming', icon: '💻', count: 0},
+            {platform: 'reddit', id: 'programming', display_name: 'r/programming', icon: '💻', count: 117},
-            {platform: 'reddit', id: 'python', display_name: 'r/python', icon: '🐍', count: 0},
+            {platform: 'hackernews', id: 'front_page', display_name: 'Hacker News', icon: '🧮', count: 117},
-            {platform: 'hackernews', id: 'hackernews', display_name: 'Hacker News', icon: '🧮', count: 0}
+            {platform: 'reddit', id: 'technology', display_name: 'r/technology', icon: '⚡', count: 0}
         ];
+        communitiesData = fallbackCommunities;
         renderCommunities(fallbackCommunities);
         setupCommunityFiltering();
     }
 }
 
+// Load available filters
+async function loadFilters() {
+    try {
+        const response = await fetch('/api/v1/filters');
+        const data = await response.json();
+        filtersData = data.filters || [];
+        
+        renderFilters(filtersData);
+        setupFilterSwitching();
+    } catch (error) {
+        console.error('Error loading filters:', error);
+        // Show fallback filters
+        const fallbackFilters = [
+            {id: 'no_filter', name: 'All Content', icon: '🌐', active: true, description: 'No filtering'}
+        ];
+        renderFilters(fallbackFilters);
+        setupFilterSwitching();
+    }
+}
+
+// Render filters in sidebar
+function renderFilters(filters) {
+    const filterList = document.getElementById('filter-list');
+    if (!filterList) return;
+    
+    if (filters.length === 0) {
+        filterList.innerHTML = '<div class="no-filters">No filters available</div>';
+        return;
+    }
+    
+    const filtersHTML = filters.map(filter => {
+        return `
+            <div class="filter-item ${filter.active ? 'active' : ''}" data-filter="${filter.id}" title="${filter.description}">
+                <span class="filter-icon">${filter.icon}</span>
+                <span>${filter.name}</span>
+            </div>
+        `;
+    }).join('');
+    
+    filterList.innerHTML = filtersHTML;
+    
+    // Set current filter based on active filter
+    const activeFilter = filters.find(f => f.active);
+    if (activeFilter) {
+        currentFilter = activeFilter.id;
+    }
+}
+
 // Render communities in sidebar
 function renderCommunities(communities) {
     const communityList = document.getElementById('community-list');
     if (!communityList) return;
 
-    if (communities.length === 0) {
+    console.log('Rendering communities:', communities);
-        communityList.innerHTML = '<div class="no-communities">No communities available</div>';
+
-        return;
+    if (!communities || communities.length === 0) {
+        // Always show fallback communities if none are loaded
+        const fallbackCommunities = [
+            {platform: 'reddit', id: 'programming', display_name: 'r/programming', icon: '💻', count: 117},
+            {platform: 'hackernews', id: 'front_page', display_name: 'Hacker News', icon: '🧮', count: 117},
+            {platform: 'reddit', id: 'technology', display_name: 'r/technology', icon: '⚡', count: 0}
+        ];
+        communities = fallbackCommunities;
     }
     
     // Add "All Communities" option at the top
@@ -795,7 +821,7 @@ function renderCommunities(communities) {
 }
 
 // Load posts from API
-async function loadPosts(page = 1, community = '', platform = '', append = false) {
+async function loadPosts(page = 1, community = '', platform = '', append = false, filter = null) {
     try {
         // Build query parameters
         const params = new URLSearchParams();
@@ -803,8 +829,10 @@ async function loadPosts(page = 1, community = '', platform = '', append = false
         params.append('per_page', 20);
         if (community) params.append('community', community);
         if (platform) params.append('platform', platform);
+        if (filter || currentFilter) params.append('filter', filter || currentFilter);
+        if (currentSearchQuery) params.append('q', currentSearchQuery);
 
-        const response = await fetch(`/api/posts?${params}`);
+        const response = await fetch(`/api/v1/posts?${params}`);
         const data = await response.json();
         const newPosts = data.posts || [];
         paginationData = data.pagination || {};
@@ -995,25 +1023,35 @@ function savePost(postId) {
 
 // Filter switching functionality
 function setupFilterSwitching() {
-    const filterItems = document.querySelectorAll('.filter-item');
+    document.addEventListener('click', function(event) {
+        if (event.target.closest('.filter-item')) {
+            const filterItem = event.target.closest('.filter-item');
             
-    filterItems.forEach(item => {
+            // Remove active class from all filter items
-        item.addEventListener('click', function() {
+            document.querySelectorAll('.filter-item').forEach(f => f.classList.remove('active'));
-            // Remove active class from all items
-            filterItems.forEach(f => f.classList.remove('active'));
             
             // Add active class to clicked item
-            this.classList.add('active');
+            filterItem.classList.add('active');
             
             // Get filter type
-            const filterType = this.dataset.filter;
+            const filterType = filterItem.dataset.filter;
+            currentFilter = filterType;
             
-            // Apply filter (for now just reload)
+            // Update header to show current filter
-            if (filterType && filterType !== 'custom') {
+            const contentHeader = document.querySelector('.content-header h1');
-                loadPosts(); // In future, pass filter parameter
+            const filterName = filterItem.textContent.trim();
+            contentHeader.textContent = `${filterName} Feed`;
+            
+            // Show loading state
+            const postsContainer = document.getElementById('posts-container');
+            const loadingIndicator = document.getElementById('loading-indicator');
+            loadingIndicator.style.display = 'flex';
+            postsContainer.innerHTML = '';
+            
+            // Apply filter
+            loadPosts(1, currentCommunity, currentPlatform, false, filterType);
         }
     });
-    });
 }
 
 // Refresh feed function
@@ -1037,15 +1075,52 @@ function refreshFeed() {
 }
 
 // Search functionality
+let currentSearchQuery = '';
+
 document.querySelector('.search-input').addEventListener('keypress', function(e) {
     if (e.key === 'Enter') {
         const query = this.value.trim();
-        if (query) {
+        performSearch(query);
-            alert(`Search functionality coming soon! You searched for: "${query}"`);
-        }
     }
 });
 
+document.querySelector('.search-btn').addEventListener('click', function() {
+    const query = document.querySelector('.search-input').value.trim();
+    performSearch(query);
+});
+
+function performSearch(query) {
+    currentSearchQuery = query;
+    currentPage = 1;
+
+    if (query) {
+        document.querySelector('.content-header h1').textContent = `Search results for "${query}"`;
+        // Show clear search button
+        if (!document.querySelector('.clear-search-btn')) {
+            const clearBtn = document.createElement('button');
+            clearBtn.className = 'clear-search-btn';
+            clearBtn.textContent = '✕ Clear search';
+            clearBtn.onclick = clearSearch;
+            document.querySelector('.content-actions').prepend(clearBtn);
+        }
+    }
+
+    loadPosts();
+}
+
+function clearSearch() {
+    currentSearchQuery = '';
+    document.querySelector('.search-input').value = '';
+    // Restore original feed title based on user state
+    const isAnonymous = {{ 'true' if anonymous else 'false' }};
+    document.querySelector('.content-header h1').textContent = isAnonymous ? 'Public Feed' : 'Your Feed';
+    const clearBtn = document.querySelector('.clear-search-btn');
+    if (clearBtn) {
+        clearBtn.remove();
+    }
+    loadPosts();
+}
+
 // Setup infinite scroll functionality
 function setupInfiniteScroll() {
     if (!userSettings?.experience?.infinite_scroll) {
@@ -1120,7 +1195,7 @@ function setupAutoRefresh() {
         if (currentPage === 1 && !currentCommunity && !currentPlatform) {
             try {
                 // Check if new content is available by checking timestamp
-                const response = await fetch('/api/content-timestamp');
+                const response = await fetch('/api/v1/content-timestamp');
                 const data = await response.json();
                 const lastContentUpdate = data.timestamp;
                 

templates/login.html

@@ -1,12 +1,12 @@
 {% extends "base.html" %}
 
-{% block title %}Log In - BalanceBoard{% endblock %}
+{% block title %}Log In - {{ APP_NAME }}{% endblock %}
 
 {% block content %}
 <div class="auth-container">
     <div class="auth-card">
         <div class="auth-logo">
-            <img src="{{ url_for('serve_logo') }}" alt="BalanceBoard Logo">
+            <img src="{{ url_for('serve_logo') }}" alt="{{ APP_NAME }} Logo">
             <h1><span class="balance">balance</span>Board</h1>
             <p style="color: var(--text-secondary); margin-top: 8px;">Welcome back!</p>
         </div>
@@ -48,6 +48,7 @@
             <span>or</span>
         </div>
 
+        {% if auth0_configured %}
         <div class="social-auth-buttons">
             <a href="{{ url_for('auth0_login') }}" class="social-btn auth0-btn">
                 <svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor">
@@ -56,6 +57,7 @@
                 Continue with Auth0
             </a>
         </div>
+        {% endif %}
 
         <div class="auth-footer">
             <p>Don't have an account? <a href="{{ url_for('signup') }}">Sign up</a></p>

templates/password_reset.html

@@ -1,12 +1,12 @@
 {% extends "base.html" %}
 
-{% block title %}Set New Password - BalanceBoard{% endblock %}
+{% block title %}Set New Password - {{ APP_NAME }}{% endblock %}
 
 {% block content %}
 <div class="auth-container">
     <div class="auth-card">
         <div class="auth-logo">
-            <img src="{{ url_for('serve_logo') }}" alt="BalanceBoard Logo">
+            <img src="{{ url_for('serve_logo') }}" alt="{{ APP_NAME }} Logo">
             <h1><span class="balance">balance</span>Board</h1>
             <p style="color: var(--text-secondary); margin-top: 8px;">Set a new password</p>
         </div>

templates/password_reset_request.html

@@ -1,12 +1,12 @@
 {% extends "base.html" %}
 
-{% block title %}Reset Password - BalanceBoard{% endblock %}
+{% block title %}Reset Password - {{ APP_NAME }}{% endblock %}
 
 {% block content %}
 <div class="auth-container">
     <div class="auth-card">
         <div class="auth-logo">
-            <img src="{{ url_for('serve_logo') }}" alt="BalanceBoard Logo">
+            <img src="{{ url_for('serve_logo') }}" alt="{{ APP_NAME }} Logo">
             <h1><span class="balance">balance</span>Board</h1>
             <p style="color: var(--text-secondary); margin-top: 8px;">Reset your password</p>
         </div>

templates/post_detail.html

@@ -1,69 +1,29 @@
 {% extends "base.html" %}
 
-{% block title %}{{ post.title }} - BalanceBoard{% endblock %}
+{% block title %}{{ post.title }} - {{ APP_NAME }}{% endblock %}
 
 {% block content %}
-<!-- Modern Top Navigation -->
+{% include '_nav.html' %}
-<nav class="top-nav">
-    <div class="nav-content">
-        <div class="nav-left">
-            <div class="logo-section">
-                <img src="{{ url_for('serve_logo') }}" alt="BalanceBoard" class="nav-logo">
-                <span class="brand-text"><span class="brand-balance">balance</span><span class="brand-board">Board</span></span>
-            </div>
-        </div>
-        
-        <div class="nav-center">
-            <div class="search-bar">
-                <input type="text" placeholder="Search content..." class="search-input">
-                <button class="search-btn">🔍</button>
-            </div>
-        </div>
-        
-        <div class="nav-right">
-            {% if current_user.is_authenticated %}
-                <div class="user-menu">
-                    <div class="user-info">
-                        <div class="user-avatar">
-                            {% if current_user.profile_picture_url %}
-                                <img src="{{ current_user.profile_picture_url }}" alt="Avatar">
-                            {% else %}
-                                <div class="avatar-placeholder">{{ current_user.username[:2].upper() }}</div>
-                            {% endif %}
-                        </div>
-                        <span class="username">{{ current_user.username }}</span>
-                    </div>
-                    <div class="user-dropdown">
-                        <a href="{{ url_for('settings') }}" class="dropdown-item">⚙️ Settings</a>
-                        {% if current_user.is_admin %}
-                            <a href="{{ url_for('admin_panel') }}" class="dropdown-item">👨‍💼 Admin Panel</a>
-                        {% endif %}
-                        <a href="{{ url_for('logout') }}" class="dropdown-item">🚪 Logout</a>
-                    </div>
-                </div>
-            {% else %}
-                <div class="auth-buttons">
-                    <a href="{{ url_for('login') }}" class="auth-btn">Login</a>
-                    <a href="{{ url_for('signup') }}" class="auth-btn primary">Sign Up</a>
-                </div>
-            {% endif %}
-        </div>
-    </div>
-</nav>
 
 <!-- Main Content Area -->
 <main class="main-content single-post">
     <!-- Back Button -->
     <div class="back-section">
-        <button onclick="goBackToFeed()" class="back-btn">← Back to Feed</button>
+        <a href="#" onclick="goBackToFeed(event)" class="back-btn">← Back to Feed</a>
     </div>
     
     <!-- Post Content -->
     <article class="post-detail">
         <div class="post-header">
+            {% if post.url and not post.url.startswith('/') %}
+            <a href="{{ post.url }}" target="_blank" class="platform-badge platform-{{ post.platform }}" title="View on {{ post.platform.title() }}">
+                {{ post.platform.title()[:1] }}
+            </a>
+            {% else %}
             <div class="platform-badge platform-{{ post.platform }}">
                 {{ post.platform.title()[:1] }}
             </div>
+            {% endif %}
             <div class="post-meta">
                 <span class="post-author">{{ post.author }}</span>
                 <span class="post-separator">•</span>
@@ -71,7 +31,7 @@
                     <span class="post-source">{{ post.source_display if post.source_display else ('r/' + post.source if post.platform == 'reddit' else post.source) }}</span>
                     <span class="post-separator">•</span>
                 {% endif %}
-                <span class="post-time">{{ moment(post.timestamp).fromNow() if moment else 'Recently' }}</span>
+                <span class="post-time" data-timestamp="{{ post.timestamp }}">{{ post.timestamp|timeago }}</span>
                 {% if post.url and not post.url.startswith('/') %}
                     <span class="external-link-indicator">🔗</span>
                 {% endif %}
@@ -88,7 +48,7 @@
         
         {% if post.content %}
             <div class="post-content">
-                {{ post.content | safe | nl2br }}
+                {{ post.content | nl2br }}
             </div>
         {% endif %}
         
@@ -105,7 +65,7 @@
                         🐙 View on GitHub
                     {% elif post.platform == 'devto' %}
                         📝 View on Dev.to
-                    {% elif post.platform == 'stackoverflow' %}
+                    {% elif post.platform == 'stackexchange' %}
                         📚 View on Stack Overflow
                     {% else %}
                         🔗 View Original Source
@@ -136,24 +96,36 @@
     <section class="comments-section">
         <h2>Comments ({{ comments|length }})</h2>
 
-        {% if comments %}
+        {% macro render_comment(comment, depth=0) %}
-            <div class="comments-list">
+            <div class="comment" style="margin-left: {{ depth * 24 }}px;">
-                {% for comment in comments %}
-                    <div class="comment">
                 <div class="comment-header">
                     <span class="comment-author">{{ comment.author }}</span>
                     <span class="comment-separator">•</span>
-                            <span class="comment-time">{{ moment(comment.timestamp).fromNow() if moment else 'Recently' }}</span>
+                    <span class="comment-time" data-timestamp="{{ comment.timestamp }}">{{ comment.timestamp|timeago }}</span>
                 </div>
                 <div class="comment-content">
-                            {{ comment.content | safe | nl2br }}
+                    {{ comment.content | nl2br }}
                 </div>
                 <div class="comment-footer">
                     <div class="comment-score">
                         <span>▲ {{ comment.score or 0 }}</span>
                     </div>
                 </div>
+
+                {% if comment.replies %}
+                    <div class="comment-replies">
+                        {% for reply in comment.replies %}
+                            {{ render_comment(reply, depth + 1) }}
+                        {% endfor %}
                     </div>
+                {% endif %}
+            </div>
+        {% endmacro %}
+
+        {% if comments %}
+            <div class="comments-list">
+                {% for comment in comments %}
+                    {{ render_comment(comment) }}
                 {% endfor %}
             </div>
         {% else %}
@@ -190,6 +162,14 @@
     display: flex;
     align-items: center;
     gap: 12px;
+    text-decoration: none;
+    color: inherit;
+    transition: all 0.2s ease;
+}
+
+.nav-left .logo-section:hover {
+    transform: scale(1.02);
+    text-decoration: none;
 }
 
 .nav-logo {
@@ -347,6 +327,35 @@
     transform: translateY(-1px);
 }
 
+.anonymous-actions {
+    display: flex;
+    gap: 12px;
+}
+
+.login-btn, .register-btn {
+    padding: 8px 16px;
+    border-radius: 8px;
+    text-decoration: none;
+    font-size: 14px;
+    font-weight: 500;
+    transition: all 0.2s ease;
+}
+
+.login-btn {
+    color: #2c3e50;
+    border: 1px solid #e2e8f0;
+}
+
+.register-btn {
+    background: #4db6ac;
+    color: white;
+}
+
+.login-btn:hover, .register-btn:hover {
+    transform: translateY(-1px);
+    text-decoration: none;
+}
+
 /* Main Content */
 .main-content.single-post {
     max-width: 1200px;
@@ -554,12 +563,24 @@
 .comment {
     padding: 20px 0;
     border-bottom: 1px solid #f1f5f9;
+    position: relative;
 }
 
 .comment:last-child {
     border-bottom: none;
 }
 
+/* Threaded comment styling */
+.comment[style*="margin-left"] {
+    padding-left: 16px;
+    border-left: 2px solid #e2e8f0;
+    border-bottom: none;
+}
+
+.comment-replies {
+    margin-top: 8px;
+}
+
 .comment-header {
     display: flex;
     align-items: center;
@@ -636,13 +657,23 @@
 </style>
 
 <script>
-function goBackToFeed() {
+function goBackToFeed(event) {
-    // Try to go back to the dashboard if possible
+    event.preventDefault();
-    if (document.referrer && document.referrer.includes(window.location.origin)) {
+
+    // Try to go back in browser history first
+    if (window.history.length > 1 && document.referrer && document.referrer.includes(window.location.origin)) {
         window.history.back();
     } else {
-        // Fallback to dashboard
+        // Fallback to dashboard - construct URL with current query parameters
-        window.location.href = '/';
+        const urlParams = new URLSearchParams(window.location.search);
+        const baseUrl = {{ url_for('index')|tojson }};
+
+        // Add query parameters if they exist
+        if (urlParams.toString()) {
+            window.location.href = baseUrl + '?' + urlParams.toString();
+        } else {
+            window.location.href = baseUrl;
+        }
     }
 }
 
@@ -654,6 +685,10 @@ function sharePost() {
 }
 
 function savePost() {
+    // TODO: Implement save post functionality
+    // User can save posts to their profile for later viewing
+    // This needs database backend integration with user_saved_posts table
+    // Same implementation needed as dashboard.html savePost function
     alert('Save functionality coming soon!');
 }
 

templates/settings.html

@@ -1,6 +1,6 @@
 {% extends "base.html" %}
 
-{% block title %}Settings - BalanceBoard{% endblock %}
+{% block title %}Settings - {{ APP_NAME }}{% endblock %}
 
 {% block extra_css %}
 <style>
@@ -230,6 +230,7 @@
 {% endblock %}
 
 {% block content %}
+{% include '_nav.html' %}
 <div class="settings-container">
     <div class="settings-header">
         <h1>Settings</h1>

templates/settings_communities.html

@@ -1,11 +1,11 @@
 {% extends "base.html" %}
 
-{% block title %}Community Settings - BalanceBoard{% endblock %}
+{% block title %}Community Settings - {{ APP_NAME }}{% endblock %}
 
 {% block extra_css %}
 <style>
     .settings-container {
-        max-width: 1000px;
+        max-width: 1200px;
         margin: 0 auto;
         padding: 24px;
     }
@@ -79,12 +79,25 @@
     .platform-icon.reddit { background: #ff4500; }
     .platform-icon.hackernews { background: #ff6600; }
     .platform-icon.lobsters { background: #ac130d; }
-    .platform-icon.stackoverflow { background: #f48024; }
+    .platform-icon.stackexchange { background: #f48024; }
 
     .community-grid {
         display: grid;
-        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
+        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
         gap: 16px;
+        max-width: 100%;
+    }
+
+    @media (max-width: 768px) {
+        .community-grid {
+            grid-template-columns: 1fr;
+        }
+    }
+
+    @media (min-width: 1400px) {
+        .community-grid {
+            grid-template-columns: repeat(3, 1fr);
+        }
     }
 
     .community-item {
@@ -235,7 +248,14 @@
 {% endblock %}
 
 {% block content %}
+{% include '_nav.html' %}
 <div class="settings-container">
+    <nav style="margin-bottom: 24px;">
+        <a href="{{ url_for('settings') }}" style="color: var(--primary-color); text-decoration: none; font-weight: 500;">
+            ← Back to Settings
+        </a>
+    </nav>
+    
     <div class="settings-header">
         <h1>Community Settings</h1>
         <p>Select which communities, subreddits, and sources to include in your feed</p>
@@ -268,7 +288,7 @@
                 <div class="platform-group">
                     <h3>
                         <span class="platform-icon {{ platform }}">
-                            {% if platform == 'reddit' %}R{% elif platform == 'hackernews' %}H{% elif platform == 'lobsters' %}L{% elif platform == 'stackoverflow' %}S{% endif %}
+                            {% if platform == 'reddit' %}R{% elif platform == 'hackernews' %}H{% elif platform == 'lobsters' %}L{% elif platform == 'stackexchange' %}S{% endif %}
                         </span>
                         {{ platform|title }}
                     </h3>

templates/settings_experience.html

@@ -1,6 +1,6 @@
 {% extends "base.html" %}
 
-{% block title %}Experience Settings - BalanceBoard{% endblock %}
+{% block title %}Experience Settings - {{ APP_NAME }}{% endblock %}
 
 {% block extra_css %}
 <style>
@@ -241,6 +241,7 @@
 {% endblock %}
 
 {% block content %}
+{% include '_nav.html' %}
 <div class="experience-settings">
     <div class="experience-header">
         <h1>Experience Settings</h1>
@@ -330,6 +331,34 @@
                     <span class="toggle-slider"></span>
                 </label>
             </div>
+
+            <!-- Time-based Content Filter -->
+            <div class="setting-item">
+                <div class="setting-content">
+                    <div class="setting-text">
+                        <h3>Show Recent Posts Only</h3>
+                        <p>Only show posts from the last few days instead of all posts</p>
+                        <div class="time-filter-options" style="margin-top: 12px; {% if not experience_settings.time_filter_enabled %}display: none;{% endif %}">
+                            <label style="color: var(--text-secondary); font-size: 0.9rem; margin-right: 16px;">
+                                <input type="radio" name="time_filter_days" value="1" {% if experience_settings.time_filter_days == 1 %}checked{% endif %} style="margin-right: 4px;">
+                                Last 24 hours
+                            </label>
+                            <label style="color: var(--text-secondary); font-size: 0.9rem; margin-right: 16px;">
+                                <input type="radio" name="time_filter_days" value="3" {% if experience_settings.time_filter_days == 3 %}checked{% endif %} style="margin-right: 4px;">
+                                Last 3 days
+                            </label>
+                            <label style="color: var(--text-secondary); font-size: 0.9rem; margin-right: 16px;">
+                                <input type="radio" name="time_filter_days" value="7" {% if experience_settings.time_filter_days == 7 or not experience_settings.time_filter_days %}checked{% endif %} style="margin-right: 4px;">
+                                Last week
+                            </label>
+                        </div>
+                    </div>
+                </div>
+                <label class="toggle-switch">
+                    <input type="checkbox" name="time_filter_enabled" {% if experience_settings.time_filter_enabled %}checked{% endif %} onchange="toggleTimeFilterOptions(this)">
+                    <span class="toggle-slider"></span>
+                </label>
+            </div>
         </div>
 
         <div class="form-actions">
@@ -338,4 +367,15 @@
         </div>
     </form>
 </div>
+
+<script>
+function toggleTimeFilterOptions(checkbox) {
+    const options = document.querySelector('.time-filter-options');
+    if (checkbox.checked) {
+        options.style.display = 'block';
+    } else {
+        options.style.display = 'none';
+    }
+}
+</script>
 {% endblock %}

templates/settings_filters.html

@@ -1,6 +1,6 @@
 {% extends "base.html" %}
 
-{% block title %}Filter Settings - BalanceBoard{% endblock %}
+{% block title %}Filter Settings - {{ APP_NAME }}{% endblock %}
 
 {% block extra_css %}
 <style>
@@ -263,6 +263,7 @@
 {% endblock %}
 
 {% block content %}
+{% include '_nav.html' %}
 <div class="settings-container">
     <div class="settings-header">
         <h1>Filter Settings</h1>

templates/settings_profile.html

@@ -1,6 +1,6 @@
 {% extends "base.html" %}
 
-{% block title %}Profile Settings - BalanceBoard{% endblock %}
+{% block title %}Profile Settings - {{ APP_NAME }}{% endblock %}
 
 {% block extra_css %}
 <style>
@@ -225,6 +225,7 @@
 {% endblock %}
 
 {% block content %}
+{% include '_nav.html' %}
 <div class="settings-container">
     <div class="settings-header">
         <h1>Profile Settings</h1>
@@ -242,7 +243,6 @@
             {% endwith %}
         </div>
 
-        <form method="POST">
         <div class="profile-section">
             <h2>Profile Picture</h2>
             <div class="profile-avatar">
@@ -258,7 +258,7 @@
                     <p>Upload a new profile picture to personalize your account</p>
                     <form id="upload-form" method="POST" action="{{ url_for('upload_avatar') }}" enctype="multipart/form-data">
                         <div class="file-upload">
-                                <input type="file" id="avatar" name="avatar" accept="image/*" onchange="this.form.submit()">
+                            <input type="file" id="avatar" name="avatar" accept="image/*">
                             <label for="avatar" class="file-upload-label">Choose New Picture</label>
                         </div>
                         <p class="help-text">PNG, JPG, or GIF. Maximum size 2MB.</p>
@@ -266,7 +266,6 @@
                 </div>
             </div>
         </div>
-        </form>
 
         <form method="POST">
             <div class="profile-section">

templates/signup.html

@@ -1,12 +1,12 @@
 {% extends "base.html" %}
 
-{% block title %}Sign Up - BalanceBoard{% endblock %}
+{% block title %}Sign Up - {{ APP_NAME }}{% endblock %}
 
 {% block content %}
 <div class="auth-container">
     <div class="auth-card">
         <div class="auth-logo">
-            <img src="{{ url_for('serve_logo') }}" alt="BalanceBoard Logo">
+            <img src="{{ url_for('serve_logo') }}" alt="{{ APP_NAME }} Logo">
             <h1><span class="balance">balance</span>Board</h1>
             <p style="color: var(--text-secondary); margin-top: 8px;">Create your account</p>
         </div>

tests/conftest.py

@@ -0,0 +1,112 @@
+"""Shared pytest fixtures for BalanceBoard.
+
+The app fixture runs against an in-memory SQLite database (no Postgres
+required) by monkeypatching ``database.init_db``. Filter-engine and
+polling-service singletons are stubbed so request handlers do not start
+background threads or hit the real filter pipeline during API contract
+tests.
+"""
+
+import pytest
+from sqlalchemy.pool import StaticPool
+
+
+def _sqlite_init_db(app):
+    """Replace the Postgres init_db with an in-memory SQLite setup."""
+    from database import db
+
+    app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///:memory:"
+    # A single in-memory DB shared across the test's connections.
+    app.config["SQLALCHEMY_ENGINE_OPTIONS"] = {"poolclass": StaticPool}
+    app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
+    db.init_app(app)
+    with app.app_context():
+        db.create_all()
+
+
+@pytest.fixture
+def app(monkeypatch):
+    import database
+    from app import create_app
+
+    monkeypatch.setattr(database, "init_db", _sqlite_init_db)
+    application = create_app()
+    application.config.update(TESTING=True)
+    return application
+
+
+@pytest.fixture
+def client(app):
+    return app.test_client()
+
+
+class _StubPolling:
+    """No-op polling service so ``before_request`` does not start threads."""
+
+    def init_app(self, app):
+        pass
+
+    def start(self):
+        pass
+
+
+class _StubFilterEngine:
+    """Passthrough filter engine for API contract tests."""
+
+    class _Config:
+        def get_filterset(self, name):
+            return None
+
+    config = _Config()
+
+    def apply_filterset(self, posts, filterset_name="no_filter", use_cache=True):
+        for p in posts:
+            p.setdefault("_filter_score", 0.5)
+            p.setdefault("_filter_categories", [])
+            p.setdefault("_filter_tags", [])
+        return posts
+
+    def filter_comments(self, comments, filterset_name="no_filter"):
+        return comments
+
+    def get_available_filtersets(self):
+        return ["no_filter"]
+
+
+@pytest.fixture
+def stub_services(app, monkeypatch):
+    """Patch the app's lazy service accessors so requests stay hermetic."""
+    import app as app_module
+
+    monkeypatch.setattr(app_module, "get_filter_engine", lambda: _StubFilterEngine())
+    monkeypatch.setattr(app_module, "get_polling_service", lambda: _StubPolling())
+    return app
+
+
+class StubPostService:
+    """In-memory post/comment store for /api/v1 contract tests."""
+
+    def __init__(self, posts=None, comments=None):
+        self._posts = posts or {}
+        self._comments = comments or {}
+
+    def load(self):
+        return self._posts, self._comments
+
+    @staticmethod
+    def build_comment_tree(comments):
+        comment_dict = {c["uuid"]: {**c, "replies": []} for c in comments}
+        roots = []
+        for c in comments:
+            parent = c.get("parent_comment_uuid")
+            if parent and parent in comment_dict:
+                comment_dict[parent]["replies"].append(comment_dict[c["uuid"]])
+            else:
+                roots.append(comment_dict[c["uuid"]])
+        return roots
+
+    def source_counts(self):
+        return {}
+
+    def latest_content_mtime(self):
+        return 0

tests/test_api_contracts.py

@@ -0,0 +1,102 @@
+"""/api/v1 contract tests with monkeypatched post_service + filter engine.
+
+No live Postgres and no real filter pipeline: ``post_service`` is replaced with
+an in-memory stub and ``get_filter_engine`` with a passthrough stub. These
+assert the JSON shape the templates/SPA consume, so refactor regressions are
+caught without a runtime stack.
+"""
+
+import pytest
+
+from conftest import StubPostService, _StubFilterEngine
+
+
+SAMPLE_POST = {
+    "uuid": "post-1",
+    "title": "Sample post",
+    "author": "alice",
+    "platform": "hackernews",
+    "source": "programming",
+    "score": 42,
+    "timestamp": 1700000000,
+    "url": "https://example.com/1",
+    "content": "Hello world",
+    "tags": ["tech"],
+}
+
+SAMPLE_COMMENTS = [
+    {"uuid": "c1", "post_uuid": "post-1", "content": "top", "score": 3,
+     "depth": 0, "parent_comment_uuid": None},
+    {"uuid": "c2", "post_uuid": "post-1", "content": "reply", "score": 1,
+     "depth": 1, "parent_comment_uuid": "c1"},
+]
+
+
+@pytest.fixture
+def api_client(app, monkeypatch):
+    """App + client with stubbed post_service and filter engine."""
+    import app as app_module
+    import blueprints.api as api_module
+
+    monkeypatch.setattr(app_module, "get_filter_engine", lambda: _StubFilterEngine())
+    monkeypatch.setattr(app_module, "get_polling_service", lambda: _StubPolling())
+    monkeypatch.setattr(api_module, "get_filter_engine", lambda: _StubFilterEngine())
+    monkeypatch.setattr(
+        api_module, "post_service",
+        StubPostService(posts={"post-1": SAMPLE_POST}, comments={"post-1": SAMPLE_COMMENTS}),
+    )
+    return app.test_client()
+
+
+def test_posts_endpoint_returns_paginated_shape(api_client):
+    resp = api_client.get("/api/v1/posts")
+    assert resp.status_code == 200
+    data = resp.get_json()
+    assert set(data.keys()) >= {"posts", "pagination"}
+    assert set(data["pagination"].keys()) >= {
+        "current_page", "total_pages", "total_posts", "per_page", "has_next", "has_prev"
+    }
+    assert data["pagination"]["total_posts"] == 1
+    post = data["posts"][0]
+    assert post["id"] == "post-1"
+    assert post["title"] == "Sample post"
+    assert post["platform"] == "hackernews"
+    assert post["url"] == "/post/post-1"
+    assert "filter_score" in post
+
+
+def test_post_detail_returns_post_and_comments(api_client):
+    resp = api_client.get("/api/v1/posts/post-1")
+    assert resp.status_code == 200
+    data = resp.get_json()
+    assert data["post"]["uuid"] == "post-1"
+    assert isinstance(data["comments"], list)
+    # The tree has one root with one nested reply.
+    assert data["comments"][0]["uuid"] == "c1"
+    assert data["comments"][0]["replies"][0]["uuid"] == "c2"
+
+
+def test_post_detail_404_for_unknown(api_client):
+    resp = api_client.get("/api/v1/posts/does-not-exist")
+    assert resp.status_code == 404
+
+
+def test_comments_endpoint_returns_tree(api_client):
+    resp = api_client.get("/api/v1/comments/post-1")
+    assert resp.status_code == 200
+    data = resp.get_json()
+    assert data["comments"][0]["uuid"] == "c1"
+    assert data["comments"][0]["replies"][0]["uuid"] == "c2"
+
+
+def test_filters_endpoint_lists_filtersets(api_client):
+    resp = api_client.get("/api/v1/filters")
+    assert resp.status_code == 200
+    data = resp.get_json()
+    assert "filters" in data
+    # Stub engine advertises no_filter; the list may be empty or contain it.
+    assert isinstance(data["filters"], list)
+
+
+# Imported via the api_client fixture's monkeypatch; keep the name available.
+from conftest import _StubPolling  # noqa: E402, F401

tests/test_app_factory.py

@@ -0,0 +1,58 @@
+"""App-factory tests: route registration and endpoint names are intact.
+
+These guard the Phase 1 refactor (module-level ``app`` → ``create_app()`` with
+routes split under ``routes/`` and ``blueprints/``). They assert that the
+endpoints referenced by templates via ``url_for(...)`` still resolve in the
+Flask url_map. Runs against in-memory SQLite (no Postgres).
+"""
+
+import pytest
+
+# Endpoints that templates reference via url_for(...) and that must survive
+# the factory refactor. Sourced from the Jinja templates.
+TEMPLATE_ENDPOINTS = [
+    "login",
+    "signup",
+    "admin_setup",
+    "logout",
+    "serve_logo",
+    "serve_theme",
+    "static",
+    # API blueprint endpoints (mounted at /api/v1)
+    "api.posts",
+    "api.post_detail",
+    "api.comments",
+    "api.filters",
+    "api.bookmarks",
+    "api.platforms",
+]
+
+
+def test_create_app_returns_flask_app(app):
+    from flask import Flask
+
+    assert isinstance(app, Flask)
+
+
+def test_api_blueprint_mounted_under_v1(app):
+    rules = [r.rule for r in app.url_map.iter_rules()]
+    assert any(r.startswith("/api/v1/posts") for r in rules), rules
+    assert any(r.startswith("/api/v1/comments") for r in rules), rules
+
+
+@pytest.mark.parametrize("endpoint", TEMPLATE_ENDPOINTS)
+def test_template_endpoints_exist(app, endpoint):
+    # Flask stores endpoints as "<blueprint>.<view>" for blueprint views and
+    # bare names for app-level views. ``url_map`` has both.
+    all_endpoints = {r.endpoint for r in app.url_map.iter_rules()}
+    assert endpoint in all_endpoints, (
+        f"endpoint '{endpoint}' missing from url_map; have: {sorted(all_endpoints)[:20]}..."
+    )
+
+
+def test_no_module_level_app_object():
+    """Phase 1 removed the module-level ``app``; importing app.py must not
+    start a server or expose a global Flask app."""
+    import app as app_module
+
+    assert not hasattr(app_module, "app"), "app.py must not keep a module-level `app`"

tests/test_filter_pipeline.py

@@ -0,0 +1,103 @@
+"""Offline filter-pipeline tests.
+
+These do NOT require Flask or Postgres — only the filter_pipeline package (which
+depends on stdlib + ``requests``). They exercise the registry-driven engine,
+the offline plugin path, AI-disabled fail-open behavior, and comment filtering.
+"""
+
+import pytest
+
+from filter_pipeline.engine import FilterEngine
+from filter_pipeline.models import ProcessingStatus
+from filter_pipeline.registry import (
+    get_registered_plugins,
+    get_registered_stages,
+)
+
+
+@pytest.fixture
+def engine():
+    # Fresh engine (not the singleton) so test isolation holds.
+    return FilterEngine("filter_config.json", "filtersets.json")
+
+
+def test_registry_discovers_builtin_stages_and_plugins(engine):
+    engine._init_stages()
+    stages = get_registered_stages()
+    for name in ["categorizer", "moderator", "filter", "ranker",
+                "plugins", "comment_filter"]:
+        assert name in stages, f"stage '{name}' not registered"
+    plugins = get_registered_plugins()
+    for name in ["keyword", "quality"]:
+        assert name in plugins, f"plugin '{name}' not registered"
+
+
+def test_offline_filterset_runs_without_ai(engine):
+    # quality_filter uses pipeline_stages=['plugins','ranker'] only.
+    posts = [
+        {"uuid": "p1", "title": "A fine Python programming title",
+         "content": "c" * 200, "score": 10, "replies": 2,
+         "platform": "reddit", "source": "python", "timestamp": 1700000000},
+        {"uuid": "p2", "title": "bad", "content": "x", "score": 0, "replies": 0,
+         "platform": "reddit", "source": "python", "timestamp": 1700000000},
+    ]
+    results = engine.process_batch(posts, "quality_filter")
+    assert results[0].passed is True
+    # Quality plugin rejects the 3-char title.
+    assert results[1].passed is False
+    assert any("QualityFilter" in t for t in results[1].tags)
+
+
+def test_ai_filterset_does_not_blank_feed_when_ai_disabled(engine):
+    posts = [{"uuid": "p1", "title": "Hello world this is a fine title",
+              "content": "c" * 200, "score": 10, "replies": 2,
+              "platform": "hackernews", "source": "programming",
+              "timestamp": 1700000000}]
+    out = engine.apply_filterset(posts, "safe_content", use_cache=False)
+    assert len(out) == 1, "AI-disabled filterset must not blank the feed"
+    results = engine.process_batch(posts, "safe_content")
+    assert results[0].status == ProcessingStatus.FAILED
+
+
+def test_no_filter_passes_everything(engine):
+    posts = [{"uuid": "p1", "title": "anything", "content": "", "score": 0,
+              "timestamp": 0}]
+    out = engine.apply_filterset(posts, "no_filter", use_cache=False)
+    assert len(out) == 1
+
+
+def test_comment_filter_individual_mode(engine):
+    comments = [
+        {"uuid": "c1", "content": "this is long enough", "score": 5,
+         "depth": 0, "parent_comment_uuid": None},
+        {"uuid": "c2", "content": "hi", "score": 1, "depth": 1,
+         "parent_comment_uuid": "c1"},
+    ]
+    kept = engine.filter_comments(comments, "quality_filter")
+    assert [c["uuid"] for c in kept] == ["c1"]
+
+
+def test_comment_filter_no_filter_passes_all(engine):
+    comments = [{"uuid": "c1", "content": "hi", "score": 1, "depth": 0,
+                 "parent_comment_uuid": None}]
+    assert len(engine.filter_comments(comments, "no_filter")) == 1
+
+
+def test_comment_filter_unknown_filterset_fails_open(engine):
+    comments = [{"uuid": "c1", "content": "hi", "score": 1, "depth": 0,
+                 "parent_comment_uuid": None}]
+    assert len(engine.filter_comments(comments, "no_such_filterset")) == 1
+
+
+def test_comment_tree_pruning_drops_branch_without_moderation(engine):
+    # safe_content comment rules require moderation.flags.is_safe == True.
+    # With no moderation data attached the field is None -> rule fails closed,
+    # so tree pruning removes the parent and its child.
+    comments = [
+        {"uuid": "r", "content": "root", "score": 5, "depth": 0,
+         "parent_comment_uuid": None},
+        {"uuid": "c", "content": "child", "score": 1, "depth": 1,
+         "parent_comment_uuid": "r"},
+    ]
+    kept = engine.filter_comments(comments, "safe_content")
+    assert kept == []

tests/test_plugin_contract.py

@@ -0,0 +1,90 @@
+"""Plugin/stage contract test (Phase 6).
+
+A drop-in stage and plugin, defined ONLY in this test module via the public
+``@register_stage`` / ``@register_plugin`` decorators, are picked up by the
+engine with zero edits to core files. This is the pluggability guarantee: a
+new filter behavior is a new module + a config entry, never an edit to
+``engine.py``.
+"""
+
+from filter_pipeline.engine import FilterEngine
+from filter_pipeline.models import FilterResult
+from filter_pipeline.plugins.base import BaseFilterPlugin
+from filter_pipeline.registry import (
+    get_plugin_class,
+    get_stage_class,
+    register_plugin,
+    register_stage,
+)
+from filter_pipeline.stages.base_stage import BaseStage
+
+
+@register_stage("sentinel_dropin_stage")
+class SentinelStage(BaseStage):
+    """Drop-in stage that tags any result it sees."""
+
+    def get_name(self):
+        return "Sentinel"
+
+    def process(self, post, result):
+        result.tags.append("sentinel_ran")
+        return result
+
+
+@register_plugin("sentinel_dropin_plugin")
+class SentinelPlugin(BaseFilterPlugin):
+    """Drop-in plugin: never rejects, returns a fixed score."""
+
+    def get_name(self):
+        return "SentinelPlugin"
+
+    def should_filter(self, post, context=None):
+        return False
+
+    def score(self, post, context=None):
+        return 0.9
+
+
+def test_dropin_stage_is_registered():
+    assert get_stage_class("sentinel_dropin_stage") is SentinelStage
+
+
+def test_dropin_plugin_is_registered():
+    assert get_plugin_class("sentinel_dropin_plugin") is SentinelPlugin
+
+
+def test_engine_instantiates_dropin_stage():
+    eng = FilterEngine("filter_config.json", "filtersets.json")
+    eng._init_stages()
+    assert "sentinel_dropin_stage" in eng._stages
+    stage = eng._stages["sentinel_dropin_stage"]
+    # Running the stage through the contract it claims to implement works.
+    result = FilterResult(post_uuid="x", passed=True, score=0.5)
+    out = stage.process({"uuid": "x"}, result)
+    assert "sentinel_ran" in out.tags
+
+
+def test_dropin_stage_can_be_selected_in_a_filterset(tmp_path):
+    """A filterset that lists the drop-in stage actually runs it.
+
+    Builds a throwaway config + filterset on disk so no core file is edited.
+    """
+    import json
+
+    cfg = tmp_path / "cfg.json"
+    cfg.write_text(json.dumps({
+        "ai": {"enabled": False},
+        "cache": {"enabled": False},
+        "pipeline": {"default_stages": ["sentinel_dropin_stage"], "enable_parallel": False},
+        "plugins": {"enabled": [], "configs": {}},
+    }))
+    fs = tmp_path / "fs.json"
+    fs.write_text(json.dumps({"custom": {"post_rules": {}, "comment_rules": {}}}))
+
+    eng = FilterEngine(str(cfg), str(fs))
+    eng._init_stages()
+    results = eng.process_batch(
+        [{"uuid": "p1", "title": "t", "content": "", "score": 0, "timestamp": 0}],
+        "custom",
+    )
+    assert "sentinel_ran" in results[0].tags

themes/modern-card-ui/card-template.html

@@ -40,6 +40,10 @@
 
         <div class="engagement-info">
           <span class="reply-count">{{replies}} replies</span>
+          <button class="bookmark-btn" onclick="toggleBookmark('{{id}}', this)" data-post-id="{{id}}">
+            <span class="bookmark-icon">🔖</span>
+            <span class="bookmark-text">Save</span>
+          </button>
         </div>
       </footer>
 

themes/modern-card-ui/index.html

@@ -228,6 +228,9 @@
                             <a href="/settings/filters" class="dropdown-item">
                                 🎛️ Filters
                             </a>
+                            <a href="/bookmarks" class="dropdown-item">
+                                📚 Bookmarks
+                            </a>
                             <div class="dropdown-divider"></div>
                             <a href="/admin" class="dropdown-item" style="display: none;">
                                 🛠️ Admin
@@ -352,6 +355,79 @@
 
         // Initialize on page load
         document.addEventListener('DOMContentLoaded', checkAuthState);
+
+        // Bookmark functionality
+        async function toggleBookmark(postId, button) {
+            try {
+                button.disabled = true;
+                const originalText = button.querySelector('.bookmark-text').textContent;
+                button.querySelector('.bookmark-text').textContent = 'Saving...';
+                
+                const response = await fetch('/api/v1/bookmark', {
+                    method: 'POST',
+                    headers: {
+                        'Content-Type': 'application/json',
+                    },
+                    body: JSON.stringify({ post_uuid: postId })
+                });
+                
+                const data = await response.json();
+                
+                if (!response.ok) {
+                    throw new Error(data.error || 'Failed to toggle bookmark');
+                }
+                
+                // Update button state
+                updateBookmarkButton(button, data.bookmarked);
+                
+            } catch (error) {
+                console.error('Error toggling bookmark:', error);
+                alert('Error: ' + error.message);
+                button.querySelector('.bookmark-text').textContent = originalText;
+            } finally {
+                button.disabled = false;
+            }
+        }
+
+        function updateBookmarkButton(button, isBookmarked) {
+            const icon = button.querySelector('.bookmark-icon');
+            const text = button.querySelector('.bookmark-text');
+            
+            if (isBookmarked) {
+                button.classList.add('bookmarked');
+                icon.textContent = '📌';
+                text.textContent = 'Saved';
+            } else {
+                button.classList.remove('bookmarked');
+                icon.textContent = '🔖';
+                text.textContent = 'Save';
+            }
+        }
+
+        // Load bookmark states for visible posts
+        async function loadBookmarkStates() {
+            const bookmarkButtons = document.querySelectorAll('.bookmark-btn');
+            
+            for (const button of bookmarkButtons) {
+                const postId = button.getAttribute('data-post-id');
+                
+                try {
+                    const response = await fetch(`/api/v1/bookmark-status/${postId}`);
+                    const data = await response.json();
+                    
+                    if (response.ok && data.bookmarked) {
+                        updateBookmarkButton(button, true);
+                    }
+                } catch (error) {
+                    console.error('Error loading bookmark status:', error);
+                }
+            }
+        }
+
+        // Load bookmark states when page loads
+        document.addEventListener('DOMContentLoaded', () => {
+            setTimeout(loadBookmarkStates, 500); // Small delay to ensure posts are rendered
+        });
     </script>
 </body>
 </html>

themes/modern-card-ui/styles.css

@@ -460,6 +460,45 @@ header .post-count::before {
 .engagement-info {
   font-size: 0.9rem;
   color: var(--text-secondary);
+  display: flex;
+  align-items: center;
+  gap: 12px;
+}
+
+/* Bookmark Button */
+.bookmark-btn {
+  background: none;
+  border: 1px solid var(--border-color);
+  border-radius: 6px;
+  padding: 6px 12px;
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  cursor: pointer;
+  transition: all 0.2s ease;
+  color: var(--text-secondary);
+  font-size: 0.85rem;
+}
+
+.bookmark-btn:hover {
+  border-color: var(--primary-color);
+  color: var(--primary-color);
+  background: rgba(77, 182, 172, 0.1);
+}
+
+.bookmark-btn.bookmarked {
+  background: var(--primary-color);
+  color: white;
+  border-color: var(--primary-color);
+}
+
+.bookmark-btn.bookmarked .bookmark-icon {
+  filter: none;
+}
+
+.bookmark-btn:disabled {
+  opacity: 0.6;
+  cursor: not-allowed;
 }
 
 /* Tags */

themes/template_prompt.txt

@@ -1,120 +0,0 @@
-# Template Creation Prompt for AI
-
-This document describes the data structures, helper functions, and conventions an AI needs to create or modify HTML templates for this social media archive system.
-
-## Data Structures Available
-
-### Post Data (when rendering posts)
-- **Available in all post templates (card, list, detail):**
-  - platform: string (e.g., "reddit", "hackernews")
-  - id: string (unique post identifier)
-  - title: string
-  - author: string
-  - timestamp: integer (unix timestamp)
-  - score: integer (up/down vote score)
-  - replies: integer (number of comments)
-  - url: string (original post URL)
-  - content: string (optional post body text)
-  - source: string (optional subreddit/community)
-  - tags: array of strings (optional tags/flair)
-  - meta: object (optional platform-specific metadata)
-  - comments: array (optional nested comment tree - only in detail templates)
-  - post_url: string (generated: "{uuid}.html" - for local linking to detail pages)
-
-### Comment Data (when rendering comments)
-- **Available in comment templates:**
-  - uuid: string (unique comment identifier)
-  - id: string (platform-specific identifier)
-  - author: string (comment author username)
-  - content: string (comment text)
-  - timestamp: integer (unix timestamp)
-  - score: integer (comment score)
-  - platform: string
-  - depth: integer (nesting level)
-  - children: array (nested replies)
-  - children_section: string (pre-rendered HTML of nested children)
-
-## Template Engine: Jinja2
-
-Templates use Jinja2 syntax (`{{ }}` for variables, `{% %}` for control flow).
-
-### Important Filters:
-- `|safe`: Mark content as safe HTML (for already-escaped content)
-- Example: `{{ renderMarkdown(content)|safe }}`
-
-### Available Control Structures:
-- `{% if variable %}...{% endif %}`
-- `{% for item in array %}...{% endfor %}`
-- `{% set variable = value %}` (create local variables)
-
-## Helper Functions Available
-
-Call these in templates using `{{ function(arg) }}`:
-
-### Time/Date Formatting:
-- `formatTime(timestamp)` -> "HH:MM"
-- `formatTimeAgo(timestamp)` -> "2 hours ago"
-- `formatDateTime(timestamp)` -> "January 15, 2024 at 14:30"
-
-### Text Processing:
-- `truncate(text, max_length)` -> truncated string with "..."
-- `escapeHtml(text)` -> HTML-escaped version
-
-### Content Rendering:
-- `renderMarkdown(text)` -> Basic HTML from markdown (returns already-escaped HTML)
-
-## Template Types
-
-### Card Template (for index/listing pages)
-- Used for summary view of posts
-- Links should use `post_url` to point to local detail pages
-- Keep concise - truncated content, basic info
-
-### List Template (compact listing)
-- Even more compact than cards
-- Vote scores, basic metadata, title link
-
-### Detail Template (full post view)
-- Full content, meta information
-- Source link uses `url` (external)
-- Must include `{{comments_section|safe}}` for rendered comments
-
-### Comment Template (nested comments)
-- Recursive rendering with depth styling
-- Children rendered as flattened HTML in `children_section`
-
-## Convenience Data Added by System
-
-In `generate_html.py`, `post_url` is added to each post before rendering: `{post['uuid']}.html`
-
-This allows templates to link to local detail pages instead of external Reddit.
-
-## CSS Classes Convention
-
-Templates use semantic CSS classes:
-- Post cards: `.post-card`, `.post-header`, `.post-meta`, etc.
-- Comments: `.comment`, `.comment-header`, `.comment-body`, etc.
-- Platform: `.platform-{platform}` for platform-specific styling
-
-## Examples
-
-### Conditional Rendering:
-```
-{% if content %}
-  <p class="content">{{ renderMarkdown(content)|safe }}</p>
-{% endif %}
-```
-
-### Looping Tags:
-```
-{% for tag in tags if tag %}
-  <span class="tag">{{ tag }}</span>
-{% endfor %}
-```
-
-### Styling by Depth (comments):
-```
-<div class="comment" style="margin-left: {{depth * 20}}px">
-```
-
-When creating new templates, follow these patterns and use the available data and helper functions appropriately.