package com.futu.course.cupons;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.futu.course.course.domain.Course;
import com.futu.course.course.mapper.CourseMapper;
import com.futu.course.user.domain.UserCoupon;
import com.futu.course.user.mapper.UserCouponMapper;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.util.Date;
import java.util.List;

@Component
@EnableScheduling
public class ScheduledTask {

    @Resource
    private CourseMapper courseMapper;
    @Resource
    private UserCouponMapper userCouponMapper;
//  定时任务检查优惠券是否过期
    @Scheduled(cron = "* * * * * * *")
    public void setCourse(){

        List<Course> courses = courseMapper.selectList(new QueryWrapper<>(null));
        for (Course c:courses){
            if (c.getEndTime().before(new Date())){
                setUserCoupon(c.getId());
            }
        }

    }

    public void setUserCoupon(Long id){
        userCouponMapper.delete(new QueryWrapper<UserCoupon>().eq("coupon_id",id));
        courseMapper.deleteById(id);
    }


}