package com.cdzy.activity.service.impl;

import com.cdzy.activity.enums.ActivityStatus;
import com.cdzy.activity.mapper.ActivityMapper;
import com.cdzy.activity.model.Activity;
import com.cdzy.activity.model.vo.ActivityVo;
import com.cdzy.activity.service.ActivityService;
import com.mybatisflex.core.query.QueryWrapper;
import com.mybatisflex.spring.service.impl.ServiceImpl;
import jakarta.annotation.Resource;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;

import static com.cdzy.activity.model.table.ActivityTableDef.ACTIVITY;

/**
 *  活动状态检测变动。
 *
 * @author attiya
 * @since 2025-09-17
 */
@Service
public class ActivityServiceImpl extends ServiceImpl<ActivityMapper, Activity>  implements ActivityService{

    @Resource
    private ActivityMapper activityMapper;

    @Override
    public void saveActivity(ActivityVo activity) {
        Activity entity = Activity.builder()
                .activityName(activity.getActivityName())
                .activityCover(activity.getActivityCover())
                .activitySponsor(activity.getActivitySponsor())
                .activityDescription(activity.getActivityDescription())
                .activityLocation(activity.getActivityLocation())
                .registrationStartTime(activity.getRegistrationStartTime())
                .registrationEndTime(activity.getRegistrationEndTime())
                .startTime(activity.getStartTime())
                .endTime(activity.getEndTime())
                .maxNum(activity.getMaxNum())
                .limitPeople(activity.getLimitPeople())
                .status(ActivityStatus.UN_START_REGISTERING)
                .build();
        activityMapper.insert(entity);
    }

    @Override
    public void updateActivity(ActivityVo activity) {
        Activity entity = activityMapper.selectOneById(activity.getActivityId());
        if (entity != null) {
            entity.setActivityName(activity.getActivityName());
            entity.setActivityCover(activity.getActivityCover());
            entity.setActivitySponsor(activity.getActivitySponsor());
            entity.setActivityDescription(activity.getActivityDescription());
            entity.setActivityLocation(activity.getActivityLocation());
            entity.setRegistrationStartTime(activity.getRegistrationStartTime());
            entity.setRegistrationEndTime(activity.getRegistrationEndTime());
            entity.setStartTime(activity.getStartTime());
            entity.setEndTime(activity.getEndTime());
            entity.setMaxNum(activity.getMaxNum());
            entity.setLimitPeople(activity.getLimitPeople());
            activityMapper.update(entity);
        }else {
            throw new RuntimeException("该活动不存在");
        }
    }

    @Override
    public void checkStatus() {
        LocalDateTime now = LocalDateTime.now();
        QueryWrapper queryWrapper = QueryWrapper.create()
                        .where(ACTIVITY.STATUS.ne(ActivityStatus.FINISHED));
        List<Activity> activities = activityMapper.selectListByQuery(queryWrapper);
       if (activities != null && !activities.isEmpty()) {
           for (Activity activity : activities) {
               switch (activity.getStatus()) {
                   case ActivityStatus.UN_START_REGISTERING:
                       if (now.isAfter(activity.getRegistrationStartTime())) {
                           activity.setStatus(ActivityStatus.REGISTERING);
                       }
                       break;
                   case ActivityStatus.REGISTERING:
                       if (now.isAfter(activity.getRegistrationEndTime())) {
                           activity.setStatus(ActivityStatus.STOP_REGISTER);
                       }
                       break;
                   case ActivityStatus.STOP_REGISTER:
                       if (now.isAfter(activity.getStartTime())) {
                           activity.setStatus(ActivityStatus.STARTED);
                       }
                       break;
                   case ActivityStatus.STARTED:
                       if (now.isAfter(activity.getStartTime())) {
                           activity.setStatus(ActivityStatus.FINISHED);
                       }
                       break;
               }
           }
           updateBatch(activities);
       }
    }
}