"""定时任务模块"""
import logging
from apscheduler.schedulers.background import BackgroundScheduler
from apscheduler.triggers.interval import IntervalTrigger

from app.tasks.delivery_warning import check_delivery_warnings, cleanup_expired_warnings
from app.tasks.order_payment_timeout import run_close_timeout_online_orders
from app.tasks.order_auto_confirm_receive import run_auto_confirm_receive_job

logger = logging.getLogger(__name__)

scheduler = BackgroundScheduler()


def init_scheduled_tasks(get_db_session):
    """初始化定时任务

    Args:
        get_db_session: 数据库会话获取函数（从 app.core.database 导入）
    """
    # 配送时效预警检查 - 每5分钟执行一次
    scheduler.add_job(
        func=_run_delivery_warning_check,
        trigger=IntervalTrigger(minutes=5),
        args=[get_db_session],
        id="delivery_warning_check",
        name="配送时效预警检查",
        replace_existing=True
    )

    # 清理过期预警记录 - 每天凌晨2点执行
    scheduler.add_job(
        func=_run_cleanup_expired_warnings,
        trigger=IntervalTrigger(hours=24),
        args=[get_db_session],
        id="cleanup_expired_warnings",
        name="清理过期预警记录",
        replace_existing=True
    )

    # 线上订单超时未支付关闭 - 每1分钟执行
    scheduler.add_job(
        func=_run_close_timeout_online_orders,
        trigger=IntervalTrigger(minutes=1),
        args=[get_db_session],
        id="close_timeout_online_orders",
        name="线上超时未支付订单关闭",
        replace_existing=True
    )

    # 送达后超时未确认收货 - 每小时执行
    scheduler.add_job(
        func=_run_auto_confirm_receive_overdue,
        trigger=IntervalTrigger(hours=1),
        args=[get_db_session],
        id="auto_confirm_receive_overdue",
        name="送达超时自动确认收货",
        replace_existing=True
    )

    scheduler.start()
    logger.info("定时任务调度器已启动")


def _run_delivery_warning_check(get_db_session):
    """执行配送时效预警检查（定时任务包装）"""
    from app.core.database import SessionLocal
    db = SessionLocal()
    try:
        result = check_delivery_warnings(db)
        logger.info(f"配送时效预警检查完成: 检查了 {result.get('checked', 0)} 个任务，"
                   f"创建了 {result.get('warnings_created', 0)} 个预警")
    except Exception as e:
        logger.error(f"配送时效预警检查失败: {str(e)}")
    finally:
        db.close()


def _run_cleanup_expired_warnings(get_db_session):
    """清理过期预警记录（定时任务包装）"""
    from app.core.database import SessionLocal
    db = SessionLocal()
    try:
        count = cleanup_expired_warnings(db, days=7)
        logger.info(f"清理过期预警记录完成: 删除了 {count} 条记录")
    except Exception as e:
        logger.error(f"清理过期预警记录失败: {str(e)}")
    finally:
        db.close()


def _run_close_timeout_online_orders(get_db_session):
    """关闭线上超时未支付订单（定时任务包装）"""
    from app.core.database import SessionLocal
    db = SessionLocal()
    try:
        run_close_timeout_online_orders(db)
    except Exception as e:
        logger.error(f"线上超时未支付订单关闭失败: {str(e)}")
    finally:
        db.close()


def _run_auto_confirm_receive_overdue(get_db_session):
    from app.core.database import SessionLocal
    db = SessionLocal()
    try:
        run_auto_confirm_receive_job(db)
    except Exception as e:
        logger.error(f"自动确认收货任务失败: {str(e)}")
    finally:
        db.close()


def shutdown_scheduler():
    """关闭定时任务调度器"""
    if scheduler.running:
        scheduler.shutdown(wait=False)
        logger.info("定时任务调度器已关闭")


__all__ = [
    "check_delivery_warnings",
    "cleanup_expired_warnings",
    "scheduler",
    "init_scheduled_tasks",
    "shutdown_scheduler"
]