"""Pydantic models for voip.ms SMS/MMS request and response payloads."""

from __future__ import annotations

from typing import Literal

from pydantic import BaseModel, Field


class SendResult(BaseModel):
    """Result of a successful sendSMS / sendMMS call."""

    id: int = Field(..., description="The new SMS/MMS id assigned by voip.ms.")


class SmsRecord(BaseModel):
    """A single SMS row as returned by getSMS.

    voip.ms returns a flat object per message; only the commonly-used fields
    are typed. Extra fields are ignored so the model stays forward-compatible.
    """

    id: str | int
    date: str | None = None
    type: str | None = Field(None, description="e.g. '1' received / '0' sent")
    did: str | None = None
    contact: str | None = None
    message: str | None = None

    model_config = {"extra": "ignore"}


class MmsRecord(BaseModel):
    """A single MMS row as returned by getMMS."""

    id: str | int
    date: str | None = None
    type: str | None = None
    did: str | None = None
    contact: str | None = None
    message: str | None = None
    media: str | None = Field(None, description="Comma-separated media file list, if present.")

    model_config = {"extra": "ignore"}


class MediaResult(BaseModel):
    """Media attachments for one MMS, from getMediaMMS."""

    id: str | int
    date: str | None = None
    media: list[str] = Field(default_factory=list, description="Up to 3 media URLs/slots.")


class DeleteResult(BaseModel):
    """Result of deleteSMS / deleteMMS."""

    status: Literal["success"] = "success"


# --- Request bodies for the FastAPI routes ---------------------------------


class SendSmsRequest(BaseModel):
    did: str = Field(..., description="Sender DID (10 digits, or +1... for e164).")
    dst: str = Field(..., description="Destination number.")
    message: str = Field(..., max_length=160)


class SendMmsRequest(BaseModel):
    did: str
    dst: str
    message: str = Field(..., max_length=2048)
    media1: str | None = Field(None, description="URL to a media file.")
    media2: str | None = Field(None, description="Base64-encoded image (data:image/...;base64,...).")
    media3: str | None = Field(None, description="Reserved; usually empty.")