package com.ruoyi.system.service.impl.config;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.ruoyi.common.core.exception.ServiceException;
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import com.ruoyi.common.core.utils.StringUtils;
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import com.ruoyi.common.core.utils.bean.BeanUtils;
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import com.ruoyi.system.api.constant.AppErrorConstant;
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import com.ruoyi.system.api.domain.dto.MgtBaseGetDto;
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import com.ruoyi.system.domain.dto.MgtArticleEditDto;
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import com.ruoyi.system.domain.dto.MgtArticlePageDto;
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import com.ruoyi.system.domain.pojo.config.Article;
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import com.ruoyi.system.domain.vo.AppArticleGetVo;
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import com.ruoyi.system.domain.vo.AppArticlePageVo;
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import com.ruoyi.system.domain.vo.MgtArticleGetVo;
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import com.ruoyi.system.domain.vo.MgtArticlePageVo;
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import com.ruoyi.system.mapper.config.ArticleMapper;
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import com.ruoyi.system.service.config.ArticleService;
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import org.springframework.stereotype.Service;
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import javax.annotation.Resource;
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import java.nio.charset.StandardCharsets;
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import java.util.Base64;
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import java.util.Date;
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import java.util.List;
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/**
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* <p>
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* 关于鸿瑞堂 服务实现类
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* </p>
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*
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* @author jqs
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* @since 2023-05-25
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*/
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@Service
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public class ArticleServiceImpl extends ServiceImpl<ArticleMapper, Article> implements ArticleService {
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@Resource
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private ArticleMapper articleMapper;
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/**
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* @description 删除文章分类
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* @author jqs
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* @date 2023/6/8 10:40
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* @param classId
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* @return void
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*/
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@Override
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public void deleteArticleClass(Long classId){
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articleMapper.deleteArticleClass(classId);
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}
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/**
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* @description 分页获取文章列表
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* @author jqs
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* @date 2023/6/9 11:08
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* @param page
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* @param mgtArticlePageDto
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* @return List<MgtArticlePageVo>
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*/
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@Override
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public List<MgtArticlePageVo> pageArticle(Page page, MgtArticlePageDto mgtArticlePageDto){
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return articleMapper.pageArticle(page, mgtArticlePageDto);
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}
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/**
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* @description 修改文章
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* @author jqs
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* @date 2023/6/9 11:45
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* @param mgtArticleEditDto
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* @return void
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*/
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@Override
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public Long editMgtArticle(MgtArticleEditDto mgtArticleEditDto){
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// 创建Article对象
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Article article;
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Long oldClassId = null;
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// 根据文章标题查询文章是否存在
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Article articleSame = this.getOne(new LambdaQueryWrapper<Article>()
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.eq(Article::getDelFlag, 0)
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.eq(Article::getArticleTitle, mgtArticleEditDto.getArticleTitle()), false);
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// 如果文章ID不为空
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if (mgtArticleEditDto.getArticleId() != null) {
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// 如果存在相同标题的文章并且文章ID不同，则抛出异常
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if (articleSame != null && !articleSame.getArticleId().equals(mgtArticleEditDto.getArticleId())) {
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throw new ServiceException(AppErrorConstant.ARTICLE_DOUBLE);
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}
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// 根据文章ID获取文章对象
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article = this.getById(mgtArticleEditDto.getArticleId());
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oldClassId = article.getClassId();
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}
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// 如果文章ID为空
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else {
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// 如果存在相同标题的文章，则抛出异常
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if (articleSame != null) {
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throw new ServiceException(AppErrorConstant.ARTICLE_DOUBLE);
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}
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// 创建新的文章对象
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article = new Article();
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article.setDelFlag(0);
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article.setCreateTime(new Date());
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article.setCreateUserId(mgtArticleEditDto.getUserId());
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}
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// 设置文章的类别ID、排序、标题、简介、封面、视频、更新时间和更新用户ID
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article.setClassId(mgtArticleEditDto.getClassId());
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article.setArticleSort(mgtArticleEditDto.getArticleSort());
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article.setArticleTitle(mgtArticleEditDto.getArticleTitle());
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article.setArticleIntroduce(mgtArticleEditDto.getArticleIntroduce());
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article.setArticleCover(mgtArticleEditDto.getArticleCover());
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article.setArticleVideo(mgtArticleEditDto.getArticleVideo());
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article.setUpdateTime(new Date());
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article.setUpdateUserId(mgtArticleEditDto.getUserId());
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// 处理文章详情
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String articleDetail = mgtArticleEditDto.getArticleDetail();
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if (StringUtils.isNotBlank(articleDetail)) {
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byte[] decodedBytes = Base64.getDecoder().decode(articleDetail);
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articleDetail = new String(decodedBytes, StandardCharsets.UTF_8);
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article.setArticleDetail(articleDetail);
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}
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// 保存或更新文章
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this.saveOrUpdate(article);
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return oldClassId;
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}
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/**
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* @description 删除文章
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* @author jqs
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* @date 2023/6/9 15:06
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* @param mgtBaseGetDto
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* @return void
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*/
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@Override
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public Long deleteArticle(MgtBaseGetDto mgtBaseGetDto){
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Article article = this.getById(Long.valueOf(mgtBaseGetDto.getId()));
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article.setDelFlag(1);
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article.setUpdateTime(new Date());
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article.setUpdateUserId(mgtBaseGetDto.getUserId());
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this.saveOrUpdate(article);
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return article.getClassId();
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}
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/**
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* @description 获取文章
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* @author jqs
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* @date 2023/7/13 11:00
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* @param articleId
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* @return MgtArticleGetVo
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*/
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@Override
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public MgtArticleGetVo getArticle(Long articleId){
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MgtArticleGetVo mgtArticleGetVo = new MgtArticleGetVo();
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Article article = this.getById(articleId);
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BeanUtils.copyProperties(article,mgtArticleGetVo);
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return mgtArticleGetVo;
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}
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/**
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* @description 通过分类id获取文章
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* @author jqs
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* @date 2023/7/13 11:37
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* @param classId
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* @return List<AppClassListVo>
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*/
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@Override
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public List<AppArticlePageVo> listArticleByClass(Page page, Long classId){
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return articleMapper.listArticleByClass(page, classId);
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}
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/**
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* @description
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* @author jqs
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* @date 2023/7/13 11:57
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* @param articleId
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* @return AppArticleGetVo
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*/
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@Override
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public AppArticleGetVo getAppArticle (Long articleId){
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AppArticleGetVo appArticleGetVo = new AppArticleGetVo();
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Article article = this.getById(articleId);
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BeanUtils.copyProperties(article,appArticleGetVo);
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return appArticleGetVo;
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}
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}
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