package com.cdzy.activity.service.impl;

import cn.hutool.core.io.FileUtil;
import cn.hutool.core.lang.UUID;
import com.cdzy.activity.component.ImageConfig;
import com.cdzy.activity.model.vo.ActivityVo;
import com.cdzy.activity.model.vo.BulletinVo;
import com.cdzy.activity.uitls.FileUtils;
import com.mybatisflex.spring.service.impl.ServiceImpl;
import com.cdzy.activity.model.Bulletin;
import com.cdzy.activity.mapper.BulletinMapper;
import com.cdzy.activity.service.BulletinService;
import jakarta.annotation.Resource;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;

/**
 * 服务层实现。
 *
 * @author attiya
 * @since 2025-09-18
 */
@Service
public class BulletinServiceImpl extends ServiceImpl<BulletinMapper, Bulletin> implements BulletinService {

    @Resource
    private BulletinMapper bulletinMapper;

    @Resource
    private ImageConfig imageConfig;

    @Override
    public void saveBulletin(BulletinVo bulletin) throws IOException {
        MultipartFile activityCover = bulletin.getBulletinCover();
        String convert = null;
        if (activityCover != null) {
            String uuid = UUID.randomUUID().toString();
            String fileExtension = FileUtils.getFileExtension(activityCover);
            String destPath = imageConfig.getActivityUrl() + "/" + uuid + fileExtension;
            FileUtils.copyMultipartFile(activityCover, destPath, true);
            convert = uuid + fileExtension;
        }
        Bulletin entity = Bulletin.builder()
                .bulletinCover(convert)
                .bulletinTitle(bulletin.getBulletinTitle())
                .bulletinDescription(bulletin.getBulletinDescription())
                .build();
        bulletinMapper.insert(entity);
    }

    @Override
    public void updateBulletind(BulletinVo bulletin) throws IOException {
        Bulletin entity = bulletinMapper.selectOneById(bulletin.getBulletinId());
        if (entity != null) {
            entity.setBulletinTitle(bulletin.getBulletinTitle());
            MultipartFile activityCover = bulletin.getBulletinCover();
            String convert = entity.getBulletinCover();
            if (activityCover != null) {
                String uuid = UUID.randomUUID().toString();
                String fileExtension = FileUtils.getFileExtension(activityCover);
                String destPath = imageConfig.getActivityUrl() + "/" + uuid + fileExtension;
                FileUtils.copyMultipartFile(activityCover, destPath, true);
                FileUtil.del(imageConfig.getActivityUrl() + "/" + convert);
                convert = uuid + fileExtension;
            }
            entity.setBulletinCover(convert);
            entity.setBulletinDescription(bulletin.getBulletinDescription());
            bulletinMapper.update(entity);
        } else {
            throw new RuntimeException("该公告不存在");
        }
    }
}