package com.peanut.modules.job.task;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.github.yulichang.wrapper.MPJLambdaWrapper;
import com.peanut.common.utils.DateUtils;
import com.peanut.config.DelayQueueConfig;
import com.peanut.modules.common.dao.ClassEntityDao;
import com.peanut.modules.common.dao.ClassModelDao;
import com.peanut.modules.common.entity.ClassEntity;
import com.peanut.modules.common.entity.ClassModel;
import org.springframework.amqp.AmqpException;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.core.MessagePostProcessor;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.Date;
import java.util.List;

@Component("classToExamTask")
public class ClassToExamTask implements ITask{

    @Autowired
    private ClassEntityDao classEntityDao;
    @Autowired
    private ClassModelDao classModelDao;
    @Autowired
    private RabbitTemplate rabbitTemplate;

    @Override
    public void run(String params) {
        List<ClassEntity> classEntities = classEntityDao.selectList(new MPJLambdaWrapper<ClassEntity>()
                .leftJoin(ClassModel.class,ClassModel::getId,ClassEntity::getModelId)
                .selectAll(ClassEntity.class)
                .eq(ClassModel::getIsExam,1)
                .eq(ClassEntity::getState,1));
        for (ClassEntity classEntity : classEntities) {
            ClassModel classModel = classModelDao.selectById(classEntity.getModelId());
            //考试周开始时间
            Date startExamTime = DateUtils.addDateDays(classEntity.getStartTime(),classModel.getDays());
            //20250702添加新规则，考试周时间按整点计算
            if (DateUtils.addDateDays(classEntity.getStartTime(),classModel.getDays()).getTime()
                    >DateUtils.stringToDate("2025-07-02","yyyy-MM-dd").getTime()){
                startExamTime = DateUtils.addDateDays(classEntity.getStartTime(),classModel.getDays());
                startExamTime = DateUtils.stringToDate(DateUtils.format(startExamTime),"yyyy-MM-dd");
            }
            if (startExamTime.getTime()<=new Date().getTime()){//已到考试周，调整小班状态为考试周
                classEntity.setState("3");
                classEntityDao.updateById(classEntity);
            }else if (DateUtils.format(startExamTime).equals(DateUtils.format(new Date()))){
                //当天与考试周到达天相同，加入队列
                //根据设置的天数将班级状态从进行中设置成考试中
                rabbitTemplate.convertAndSend(
                        DelayQueueConfig.COMMON_EXCHANGE,
                        DelayQueueConfig.COMMON_ROUTING_KEY,
                        "examDays" + "," + classEntity.getId(),
                        new MessagePostProcessor() {
                            @Override
                            public Message postProcessMessage(Message message) throws AmqpException {
                                message.getMessageProperties().setDelay((int)(DateUtils.addDateDays(classEntity.getStartTime(),classModel.getDays()).getTime()-new Date().getTime()));
                                return message;
                            }
                        }
                );
            }
        }
    }

}