import logging
from typing import List, Optional
from app.services.telegram_service import send_message as tg_send

logger = logging.getLogger(__name__)


async def send_handoff_alert(
    chatbot_id: str,
    chatbot_name: str,
    conversation_history: List[dict],
    trigger_message: str,
    conversation_id: str,
    low_confidence: bool,
    supabase,
) -> bool:
    """
    Notify the chatbot owner via their connected Telegram bot.
    Owner must have sent /owner to their bot to register their chat_id.
    Returns True if notification was sent.
    """
    try:
        conn = (
            supabase.table("channel_connections")
            .select("bot_token, owner_chat_id")
            .eq("chatbot_id", chatbot_id)
            .eq("channel", "telegram")
            .eq("is_active", True)
            .execute()
        )
        if not conn.data:
            logger.info(f"No Telegram connection for chatbot {chatbot_id}")
            return False

        bot_token: Optional[str] = conn.data[0].get("bot_token")
        owner_chat_id = conn.data[0].get("owner_chat_id")

        if not bot_token or not owner_chat_id:
            logger.info(
                f"Owner has not registered for notifications on chatbot {chatbot_id}. "
                "They should send /owner to their Telegram bot."
            )
            return False

        from app.config import settings
        recent = conversation_history[-4:]
        history_lines = "\n".join(
            f"{'👤' if m['role'] == 'user' else '🤖'} {m['content'][:120]}"
            for m in recent
        )

        reason = "❓ Bot couldn't answer confidently" if low_confidence else "🙋 User requested a human"
        inbox_url = f"{settings.app_url}/inbox"

        text = (
            f"🔔 *Handoff — {chatbot_name}*\n"
            f"Reason: {reason}\n\n"
            f"Last messages:\n{history_lines}\n\n"
            f"▶ [Open in inbox]({inbox_url})"
        )

        sent = await tg_send(bot_token, owner_chat_id, text)
        if sent:
            logger.info(f"Handoff alert sent to owner for chatbot {chatbot_id}")
        return sent

    except Exception as e:
        logger.error(f"Failed to send handoff alert for chatbot {chatbot_id}: {e}")
        return False