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package com.tanpu.community.service;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.tanpu.common.exception.BizException;
import com.tanpu.common.uuid.UuidGenHelper;
import com.tanpu.community.api.enums.CommentTypeEnum;
import com.tanpu.community.api.enums.DeleteTagEnum;
import com.tanpu.community.api.enums.TopicStatusEnum;
import com.tanpu.community.dao.entity.community.CommentEntity;
import com.tanpu.community.dao.mapper.community.CommentMapper;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import javax.annotation.Resource;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
@Service
public class CommentService {
@Resource
private CommentMapper commentMapper;
@Autowired
private UuidGenHelper uuidGenHelper;
@Transactional
public void insertComment(CommentEntity commentEntity) {
commentEntity.setCommentId(uuidGenHelper.getUuidStr());
commentMapper.insert(commentEntity);
}
public List<CommentEntity> selectByUserId(String userId) {
return commentMapper.selectList(new LambdaQueryWrapper<CommentEntity>().eq(CommentEntity::getAuthorId, userId));
}
//统计主题集合的评论量
public Integer getCommentCountByThemeIds(List<String> themeIds) {
if (CollectionUtils.isEmpty(themeIds)){
return 0;
}
return commentMapper.selectList((new LambdaQueryWrapper<CommentEntity>()
.in(CommentEntity::getThemeId, themeIds)))
.size();
}
//统计主题集合的评论量
public Integer getCommentCountByThemeId(String themeId) {
return commentMapper.selectList((new LambdaQueryWrapper<CommentEntity>()
.eq(CommentEntity::getThemeId, themeId)))
.size();
}
public Set<String> getCommentUserCount(List<String> themeIds) {
return commentMapper.selectList((new LambdaQueryWrapper<CommentEntity>()
.in(CommentEntity::getThemeId, themeIds)))
.stream().map(CommentEntity::getAuthorId).collect(Collectors.toSet());
}
public List<CommentEntity> selectByThemeIdAndParentId(String themeId, String parentId) {
LambdaQueryWrapper<CommentEntity> queryWrapper = new LambdaQueryWrapper<CommentEntity>()
.eq(CommentEntity::getThemeId, themeId)
.eq(CommentEntity::getDeleteTag, DeleteTagEnum.NOT_DELETED.getCode())
.eq(CommentEntity::getIsBlock, TopicStatusEnum.FALSE.getCode())
.orderByDesc(CommentEntity::getCreateTime);
if (parentId == null) {
queryWrapper.isNull(CommentEntity::getParentId);
} else {
queryWrapper.eq(CommentEntity::getParentId, parentId);
}
return commentMapper.selectList(queryWrapper);
}
public List<CommentEntity> queryThemesByUserId(String userId) {
return commentMapper.selectList(new LambdaQueryWrapper<CommentEntity>()
.eq(CommentEntity::getAuthorId,userId)
.eq(CommentEntity::getCommentType, CommentTypeEnum.THEME.getCode())
.eq(CommentEntity::getDeleteTag,DeleteTagEnum.NOT_DELETED.getCode()));
}
public List<CommentEntity> queryThemesByUserId(String userId, String lastId,Integer pageSize) {
LambdaQueryWrapper<CommentEntity> queryWrapper = new LambdaQueryWrapper<CommentEntity>()
.eq(CommentEntity::getAuthorId, userId)
.eq(CommentEntity::getCommentType, CommentTypeEnum.THEME.getCode())
.eq(CommentEntity::getDeleteTag, DeleteTagEnum.NOT_DELETED.getCode());
if (StringUtils.isNotEmpty(lastId)) {
CommentEntity commentEntity = commentMapper.selectOne(new LambdaQueryWrapper<CommentEntity>()
.eq(CommentEntity::getCommentId,lastId));
if (commentEntity==null) throw new BizException("主题未找到，id："+lastId);
queryWrapper.lt(CommentEntity::getUpdateTime, commentEntity.getCreateTime());
}
if (pageSize!=null){
queryWrapper.last("limit "+pageSize);
}
return commentMapper.selectList(queryWrapper);
}
}