"""
任务管理V2路由

提供统一的任务查询和管理API端点
"""
from typing import List
from fastapi import APIRouter, Depends, HTTPException
from sqlalchemy.orm import Session

from app.database import get_db
from app.models.user import User
from app.middleware import get_current_user_from_request
from app.schemas.model_schema import ApiResponse
from app.schemas.audio_v2 import (
    TaskStatusResponse,
    BatchDeleteRequest,
    BatchDeleteResponse,
    UserAudioStatisticsResponse
)
from app.services.audio_v2 import TaskManager

router = APIRouter(prefix="/tasks", tags=["任务管理V2"])


@router.get("/{task_id}/status", response_model=ApiResponse[TaskStatusResponse])
def get_task_status(
    task_id: str,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user_from_request)
):
    """
    查询任务状态（跨所有任务类型）
    
    根据task_id查询任务状态，自动识别任务类型
    
    Args:
        task_id: 任务ID
        
    Returns:
        任务状态信息（包含状态、进度、错误信息等）
    """
    manager = TaskManager(db, current_user.id)
    result = manager.get_task_status(task_id)
    
    return ApiResponse(
        code=200,
        message="success",
        data=result
    )


@router.delete("/{task_id}/cancel", response_model=ApiResponse[bool])
def cancel_task(
    task_id: str,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user_from_request)
):
    """
    取消任务（仅PENDING状态可取消）
    
    Args:
        task_id: 任务ID
        
    Returns:
        是否成功取消
    """
    manager = TaskManager(db, current_user.id)
    result = manager.cancel_task(task_id)
    
    return ApiResponse(
        code=200,
        message="任务已取消",
        data=result
    )


@router.delete("/{task_id}", response_model=ApiResponse[bool])
def delete_task(
    task_id: str,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user_from_request)
):
    """
    删除任务记录
    
    Args:
        task_id: 任务ID
        
    Returns:
        是否成功删除
    """
    manager = TaskManager(db, current_user.id)
    result = manager.delete_task(task_id)
    
    return ApiResponse(
        code=200,
        message="任务已删除",
        data=result
    )


@router.post("/batch-delete", response_model=ApiResponse[BatchDeleteResponse])
def batch_delete_tasks(
    request: BatchDeleteRequest,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user_from_request)
):
    """
    批量删除任务
    
    Args:
        request: 批量删除请求（包含task_ids列表）
        
    Returns:
        删除结果统计（成功数、失败数、失败详情）
    """
    manager = TaskManager(db, current_user.id)
    result = manager.batch_delete_tasks(request.task_ids)
    
    return ApiResponse(
        code=200,
        message=f"批量删除完成，成功{result['success_count']}个，失败{result['failed_count']}个",
        data=BatchDeleteResponse(**result)
    )


@router.get("/statistics", response_model=ApiResponse[UserAudioStatisticsResponse])
def get_user_statistics(
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user_from_request)
):
    """
    获取用户语音统计信息
    
    包含语音识别、语音合成、声音克隆、长文本转音频的统计数据
    
    Returns:
        用户语音统计信息（各类任务的数量、费用等）
    """
    manager = TaskManager(db, current_user.id)
    result = manager.get_user_statistics()
    
    return ApiResponse(
        code=200,
        message="success",
        data=result
    )