127 lines
4.8 KiB
Python
127 lines
4.8 KiB
Python
from typing import Dict, Any, Optional
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import uuid
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from datetime import datetime
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from loguru import logger
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from sqlalchemy.orm import sessionmaker
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from services.database import get_engine_for_user
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from models.video_models import VideoGenerationTask, VideoTaskStatus, Base
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class TaskManager:
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def __init__(self):
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pass
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def create_task(self, task_type: str, user_id: str, request_data: Optional[Dict] = None) -> str:
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"""Create a new persistent task."""
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task_id = str(uuid.uuid4())
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try:
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engine = get_engine_for_user(user_id)
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# Ensure table exists
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Base.metadata.create_all(bind=engine)
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SessionLocal = sessionmaker(bind=engine)
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db = SessionLocal()
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try:
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task = VideoGenerationTask(
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task_id=task_id,
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user_id=user_id,
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status=VideoTaskStatus.PENDING,
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request_data=request_data
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)
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db.add(task)
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db.commit()
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logger.info(f"[VideoStudio] Created persistent task {task_id} for user {user_id}")
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return task_id
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finally:
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db.close()
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except Exception as e:
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logger.error(f"[VideoStudio] Failed to create task: {e}")
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raise
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def update_task(self, task_id: str, status: str, result: Optional[Dict] = None, error: Optional[str] = None, user_id: str = None, progress: float = None, message: str = None):
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"""Update an existing task."""
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if not user_id:
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logger.error(f"[VideoStudio] Cannot update task {task_id} without user_id")
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return
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try:
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engine = get_engine_for_user(user_id)
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SessionLocal = sessionmaker(bind=engine)
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db = SessionLocal()
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try:
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task = db.query(VideoGenerationTask).filter(VideoGenerationTask.task_id == task_id).first()
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if not task:
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logger.warning(f"[VideoStudio] Task {task_id} not found in DB for update")
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return
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# Map string status to Enum
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try:
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# Handle case-insensitive status mapping
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status_upper = status.upper()
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if status_upper == "RUNNING":
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status_upper = "PROCESSING"
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enum_status = VideoTaskStatus[status_upper]
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except KeyError:
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logger.warning(f"[VideoStudio] Invalid status {status}, defaulting to PROCESSING")
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enum_status = VideoTaskStatus.PROCESSING
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task.status = enum_status
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task.updated_at = datetime.utcnow()
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if result:
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task.result = result
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if error:
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task.error = error
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if progress is not None:
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task.progress = progress
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if message:
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task.message = message
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db.commit()
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logger.debug(f"[VideoStudio] Updated task {task_id} to {status}")
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finally:
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db.close()
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except Exception as e:
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logger.error(f"[VideoStudio] Failed to update task {task_id}: {e}")
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def get_task(self, task_id: str, user_id: str = None) -> Optional[Dict[str, Any]]:
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"""Retrieve task status."""
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if not user_id:
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logger.error(f"[VideoStudio] Cannot get task {task_id} without user_id")
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return None
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try:
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engine = get_engine_for_user(user_id)
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SessionLocal = sessionmaker(bind=engine)
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db = SessionLocal()
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try:
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task = db.query(VideoGenerationTask).filter(VideoGenerationTask.task_id == task_id).first()
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if not task:
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return None
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# Map internal status to frontend status
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status_val = task.status.value
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if status_val == "processing":
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status_val = "running"
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return {
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"task_id": task.task_id,
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"status": status_val,
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"result": task.result,
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"error": task.error,
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"progress": task.progress,
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"message": task.message,
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"created_at": task.created_at,
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"updated_at": task.updated_at
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}
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finally:
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db.close()
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except Exception as e:
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logger.error(f"[VideoStudio] Failed to get task {task_id}: {e}")
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return None
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task_manager = TaskManager()
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