from datetime import datetime

from fastapi import APIRouter, Depends

from api.auth import require_api_key
from config import settings
from schemas import ChannelStatusResponse, ChannelType, SystemStatusResponse

router = APIRouter(prefix="/channels", tags=["channels"])

# Wird in main.py gesetzt
_channel_registry: dict = {}


def register(telegram: object, whatsapp: object, sms: object) -> None:
    _channel_registry["telegram"] = telegram
    _channel_registry["whatsapp"] = whatsapp
    _channel_registry["sms"] = sms


@router.get("/status", response_model=SystemStatusResponse)
async def channel_status(_: str = Depends(require_api_key)):
    statuses = []

    for name, channel_type in [
        ("telegram", ChannelType.telegram),
        ("whatsapp", ChannelType.whatsapp),
        ("sms", ChannelType.sms),
    ]:
        ch = _channel_registry.get(name)
        if ch is None:
            statuses.append(
                ChannelStatusResponse(channel=channel_type, enabled=False, connected=False)
            )
            continue
        connected, detail = await ch.check_connection()
        enabled = (
            settings.telegram_enabled
            if name == "telegram"
            else (settings.whatsapp_enabled if name == "whatsapp" else settings.sms_enabled)
        )
        statuses.append(
            ChannelStatusResponse(
                channel=channel_type, enabled=enabled, connected=connected, detail=detail
            )
        )

    return SystemStatusResponse(channels=statuses, database=True, timestamp=datetime.utcnow())