from __future__ import annotations

import logging
from typing import Any

logger = logging.getLogger(__name__)

class TaskRecoveryManager:
    async def list_pending_delegations(self, session_id: str) -> list[str]:
        """Tasks awaiting completion from crew (e.g. BuilderAgent running a build)."""
        # Placeholder: In real implementation, fetch from persistent store
        logger.info(f"Listing pending delegations for session {session_id}")
        return []

    async def check_delegation_status(self, task_id: str) -> dict[str, Any]:
        """Poll task status: running | completed | blocked | failed."""
        # Placeholder: In real implementation, fetch status from task store
        logger.info(f"Checking status for task {task_id}")
        return {"task_id": task_id, "status": "running"}

    async def resume_or_retry(self, task_id: str) -> dict[str, Any]:
        """Resume incomplete task or retry if failed (with exponential backoff)."""
        # Placeholder: In real implementation, resume or retry logic
        logger.info(f"Resuming or retrying task {task_id}")
        return {"task_id": task_id, "action": "resumed"}
