from __future__ import annotations

from typing import TYPE_CHECKING

if TYPE_CHECKING:
    from googleapiclient.discovery import Resource

from yuxi.channels.models import DeliveryResult
from yuxi.utils.logging_config import logger

_PAIRING_CHALLENGE_MESSAGE = (
    "{agent_name} Approval Required\n\n"
    "To continue, send the following:\n"
    "```\n/approve {user_id}\n```\n"
    "This confirmation is required to pair with this bot account."
)


async def send_pairing_challenge(
    chat_service: Resource,
    space_name: str,
    user_id: str,
    agent_name: str = "Bot",
) -> DeliveryResult:
    content = _PAIRING_CHALLENGE_MESSAGE.format(
        agent_name=agent_name,
        user_id=user_id,
    )
    body = {"text": content}
    try:
        result = chat_service.spaces().messages().create(parent=space_name, body=body).execute()
        msg_id = result.get("name", "")
        logger.info(f"Pairing challenge sent to {space_name}: user_id={user_id}")
        return DeliveryResult(success=True, message_id=msg_id)
    except Exception as e:
        logger.warning(f"Failed to send pairing challenge to {space_name}: {e}")
        return DeliveryResult(success=False, error=str(e))


async def check_pairing_approval(
    chat_service: Resource,
    space_name: str,
    user_id: str,
    message_text: str,
) -> bool:
    approved = f"/approve {user_id}" in message_text.strip().lower()
    if approved:
        logger.info(f"Pairing approved for {space_name}: user_id={user_id}")
    return approved