"""
Twilio utility functions for call management.

Provides functions for:
- Terminating calls via REST API
- Managing call state
"""

import os
from typing import Optional

from loguru import logger


async def terminate_call(call_sid: str) -> bool:
    """
    Terminate a Twilio call via REST API.

    Args:
        call_sid: The Call SID to terminate

    Returns:
        True if successful, False otherwise
    """
    account_sid = os.environ.get("TWILIO_ACCOUNT_SID")
    auth_token = os.environ.get("TWILIO_AUTH_TOKEN")

    if not account_sid or not auth_token:
        logger.warning("Twilio credentials not configured, cannot terminate call via API")
        return False

    if not call_sid:
        logger.warning("No call_sid provided, cannot terminate call")
        return False

    try:
        from twilio.rest import Client

        client = Client(account_sid, auth_token)
        client.calls(call_sid).update(status="completed")
        logger.info(f"Successfully terminated Twilio call: {call_sid}")
        return True
    except ImportError:
        logger.error("Twilio SDK not installed, cannot terminate call")
        return False
    except Exception as e:
        logger.error(f"Failed to terminate Twilio call {call_sid}: {e}")
        return False


# Global storage for call context during active calls
# This allows handlers to access call information
_active_call_context: Optional[dict] = None


def set_call_context(call_sid: str, stream_sid: str) -> None:
    """Store the current call context for handlers to access."""
    global _active_call_context
    _active_call_context = {
        "call_sid": call_sid,
        "stream_sid": stream_sid,
    }
    logger.debug(f"Set call context: call_sid={call_sid}")


def get_call_context() -> Optional[dict]:
    """Get the current call context."""
    return _active_call_context


def clear_call_context() -> None:
    """Clear the current call context."""
    global _active_call_context
    _active_call_context = None
    logger.debug("Cleared call context")