import logging
import asyncio
from typing import Dict

logger = logging.getLogger("s2s_server")

class TaskSupervisor:
    def __init__(self, session_id: str):
        self.session_id = session_id
        self._tasks: Dict[str, asyncio.Task] = {}

    def register_task(self, name: str, task: asyncio.Task):
        # Cancel if already registered
        self.cancel_task(name)
        self._tasks[name] = task

    def cancel_task(self, name: str):
        task = self._tasks.get(name)
        if task and not task.done():
            logger.info(f"[{self.session_id}] TaskSupervisor: Cancelling task '{name}'")
            task.cancel()
        if name in self._tasks:
            del self._tasks[name]

    async def cancel_tasks(self, *names: str):
        for name in names:
            self.cancel_task(name)

    def cancel_all(self):
        logger.info(f"[{self.session_id}] TaskSupervisor: Cancelling all tasks ({list(self._tasks.keys())})")
        for name in list(self._tasks.keys()):
            self.cancel_task(name)