"""Notification router for processing push notifications."""

import logging
from typing import Annotated

from fastapi import APIRouter, Depends, HTTPException

from capa_de_integracion.dependencies import get_notification_manager
from capa_de_integracion.models.notification import ExternalNotificationRequest
from capa_de_integracion.services import NotificationManagerService

logger = logging.getLogger(__name__)
router = APIRouter(prefix="/api/v1/dialogflow", tags=["notifications"])


@router.post("/notification", status_code=200)
async def process_notification(
    request: ExternalNotificationRequest,
    notification_manager: Annotated[
        NotificationManagerService,
        Depends(
            get_notification_manager,
        ),
    ],
) -> None:
    """Process push notification from external system.

    This endpoint receives notifications (e.g., "Your card was blocked") and:
    1. Stores them in Redis/Firestore
    2. Associates them with the user's conversation session
    3. Triggers a Dialogflow event

    When the user later sends a message asking about the notification
    ("Why was it blocked?"), the message filter will classify it as
    NOTIFICATION and route to the appropriate handler.

    Args:
        request: External notification request with text, phone, and parameters
        notification_manager: Notification manager service instance

    Returns:
        None (204 No Content)

    Raises:
        HTTPException: 400 if validation fails, 500 for internal errors

    """
    try:
        logger.info("Received notification request")
        await notification_manager.process_notification(request)
        logger.info("Successfully processed notification request")
        # Match Java behavior: process but don't return response body

    except ValueError as e:
        logger.exception("Validation error")
        raise HTTPException(status_code=400, detail=str(e)) from e

    except Exception as e:
        logger.exception("Error processing notification")
        raise HTTPException(status_code=500, detail="Internal server error") from e