import logging

from fastapi import Request, Response

from app.messengers.base import MessengerService

logger = logging.getLogger(__name__)


class LensaService(MessengerService):
    """
    Stub implementation for Lensa (IVA Technologies) messenger bot.

    Lensa's Bot API/SDK is not publicly available.
    This stub provides the MessengerService interface so the integration
    can be implemented when SDK access is obtained from IVA Technologies.

    To integrate:
    1. Obtain SDK/API documentation from IVA Technologies (iva-tech.ru)
    2. Implement the abstract methods below
    3. Register webhook endpoint in main.py (similar to Telegram)
    """

    async def setup(self):
        logger.info("Lensa bot: stub — SDK not available, skipping setup")

    async def shutdown(self):
        logger.info("Lensa bot: stub — shutting down")

    async def send_message(self, chat_id: str, text: str, **kwargs):
        logger.warning(f"Lensa bot: send_message not implemented (chat_id={chat_id})")

    async def send_file(self, chat_id: str, file_path: str, caption: str = ""):
        logger.warning(f"Lensa bot: send_file not implemented (chat_id={chat_id})")

    async def notify_progress(self, chat_id: str, status: str, progress: int | None = None):
        logger.warning(f"Lensa bot: notify_progress not implemented (chat_id={chat_id})")

    async def feed_webhook(self, request: Request) -> Response:
        logger.warning("Lensa bot: webhook received but SDK not implemented")
        return Response(status_code=200)


lensa_service = LensaService()