package cc.mrbird.febs.video.service.impl;

import cc.mrbird.febs.video.entity.VideoMasterDataEntity;
import cc.mrbird.febs.video.mapper.VideoMasterDataMapper;
import cc.mrbird.febs.video.service.IVideoMasterDataService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;

/**
 * @author wzy
 * @date 2021-12-20
 **/
@Slf4j
@Service
@RequiredArgsConstructor
public class VideoMasterDataServiceImpl extends ServiceImpl<VideoMasterDataMapper, VideoMasterDataEntity> implements IVideoMasterDataService {


    @Override
    public synchronized void modifyVideoData(Long masterId, int cnt, int type) {
        VideoMasterDataEntity data = this.baseMapper.selectDataByMasterIdForUpdate(masterId);
        if (data == null) {
            data = new VideoMasterDataEntity();
            data.setMasterId(masterId);
            data.setCollectCnt(0);
            data.setPlayCnt(0);
            data.setStarCnt(0);
        }

        int targetCnt = 0;
        switch (type) {
            // 播放量
            case 1:
                targetCnt = data.getPlayCnt() + cnt;
                if (targetCnt < 0) {
                    targetCnt = 0;
                }
                data.setPlayCnt(targetCnt);
                break;
            // 收藏量
            case 2:
                targetCnt = data.getCollectCnt() + cnt;
                if (targetCnt < 0) {
                    targetCnt = 0;
                }
                data.setCollectCnt(targetCnt);
                break;
            // 点赞量
            case 3:
                targetCnt = data.getStarCnt() + cnt;
                if (targetCnt < 0) {
                    targetCnt = 0;
                }
                data.setStarCnt(targetCnt);
                break;
        }

        this.baseMapper.updateById(data);
    }
}