118 lines
4.0 KiB
Python
118 lines
4.0 KiB
Python
"""
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任务追踪服务：追踪 Celery 任务状态（从 services 迁入 core）
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"""
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import json
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from app.core.logging import get_logger
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from datetime import datetime, timezone
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from typing import Any, Dict, List, Optional
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from app.core.redis import redis_service
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logger = get_logger(__name__)
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class TaskTracker:
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"""任务追踪器，使用 Redis 存储任务状态"""
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KEY_PREFIX = "task:user:"
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TASK_TTL = 3600
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async def add_task(
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self, user_id: str, task_id: str, task_type: str = "memoir"
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) -> bool:
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try:
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client = await redis_service.get_client()
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key = f"{self.KEY_PREFIX}{user_id}:tasks"
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task_info = {
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"task_id": task_id,
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"task_type": task_type,
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"status": "pending",
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"created_at": datetime.now(timezone.utc).isoformat(),
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}
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await client.hset(key, task_id, json.dumps(task_info))
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await client.expire(key, self.TASK_TTL)
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logger.info("任务已记录: user_id=%s, task_id=%s", user_id, task_id)
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return True
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except Exception as e:
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logger.error("记录任务失败: %s", e)
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return False
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async def update_task_status(
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self, user_id: str, task_id: str, status: str, result: Any = None
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) -> bool:
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try:
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client = await redis_service.get_client()
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key = f"{self.KEY_PREFIX}{user_id}:tasks"
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data = await client.hget(key, task_id)
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if data:
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task_info = json.loads(data)
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else:
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task_info = {"task_id": task_id}
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task_info["status"] = status
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task_info["updated_at"] = datetime.now(timezone.utc).isoformat()
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if result is not None:
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task_info["result"] = result
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await client.hset(key, task_id, json.dumps(task_info))
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return True
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except Exception as e:
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logger.error("更新任务状态失败: %s", e)
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return False
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async def get_user_tasks(self, user_id: str) -> List[Dict]:
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try:
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client = await redis_service.get_client()
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key = f"{self.KEY_PREFIX}{user_id}:tasks"
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tasks_data = await client.hgetall(key)
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return [json.loads(data) for data in tasks_data.values()]
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except Exception as e:
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logger.error("获取用户任务失败: %s", e)
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return []
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async def get_pending_tasks(self, user_id: str) -> List[Dict]:
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tasks = await self.get_user_tasks(user_id)
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return [t for t in tasks if t.get("status") in ("pending", "running")]
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async def check_tasks_status(self, user_id: str) -> Dict:
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tasks = await self.get_user_tasks(user_id)
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status_counts: Dict[str, int] = {
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"total": len(tasks),
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"pending": 0,
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"running": 0,
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"success": 0,
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"failure": 0,
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}
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for task in tasks:
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status = task.get("status", "pending")
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if status in status_counts:
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status_counts[status] += 1
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status_counts["all_completed"] = (
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status_counts["total"] > 0
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and status_counts["pending"] == 0
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and status_counts["running"] == 0
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)
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return status_counts
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async def clear_user_tasks(self, user_id: str) -> bool:
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try:
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client = await redis_service.get_client()
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key = f"{self.KEY_PREFIX}{user_id}:tasks"
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await client.delete(key)
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return True
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except Exception as e:
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logger.error("清除用户任务失败: %s", e)
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return False
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async def remove_task(self, user_id: str, task_id: str) -> bool:
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try:
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client = await redis_service.get_client()
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key = f"{self.KEY_PREFIX}{user_id}:tasks"
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await client.hdel(key, task_id)
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return True
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except Exception as e:
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logger.error("移除任务失败: %s", e)
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return False
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task_tracker = TaskTracker()
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