package cn.iocoder.yudao.module.im.service.channel;
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import cn.hutool.core.collection.CollUtil;
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import cn.iocoder.yudao.framework.common.pojo.PageResult;
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import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
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import cn.iocoder.yudao.module.im.controller.admin.manager.channel.vo.material.ImChannelMaterialPageReqVO;
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import cn.iocoder.yudao.module.im.controller.admin.manager.channel.vo.material.ImChannelMaterialSaveReqVO;
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import cn.iocoder.yudao.module.im.dal.dataobject.channel.ImChannelMaterialDO;
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import cn.iocoder.yudao.module.im.dal.mysql.channel.ImChannelMaterialMapper;
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import cn.iocoder.yudao.module.im.dal.mysql.message.ImChannelMessageMapper;
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import jakarta.annotation.Resource;
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import org.springframework.stereotype.Service;
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import org.springframework.validation.annotation.Validated;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.List;
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import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
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import static cn.iocoder.yudao.module.im.enums.ErrorCodeConstants.IM_CHANNEL_MATERIAL_NOT_EXISTS;
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import static cn.iocoder.yudao.module.im.enums.ErrorCodeConstants.IM_CHANNEL_MATERIAL_USED;
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/**
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* IM 频道素材 Service 实现类
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*
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* @author 芋道源码
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*/
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@Service
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@Validated
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public class ImChannelMaterialServiceImpl implements ImChannelMaterialService {
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@Resource
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private ImChannelMaterialMapper channelMaterialMapper;
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@Resource
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private ImChannelService channelService;
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@Resource
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private ImChannelMessageMapper channelMessageMapper;
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// ==================== 用户端 ====================
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@Override
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public ImChannelMaterialDO validateMaterialExists(Long id) {
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ImChannelMaterialDO material = channelMaterialMapper.selectById(id);
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if (material == null) {
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throw exception(IM_CHANNEL_MATERIAL_NOT_EXISTS);
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}
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return material;
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}
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@Override
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public List<ImChannelMaterialDO> getMaterialList(Collection<Long> ids) {
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if (CollUtil.isEmpty(ids)) {
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return Collections.emptyList();
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}
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return channelMaterialMapper.selectByIds(ids);
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}
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@Override
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public Long getMaterialCountByChannelId(Long channelId) {
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return channelMaterialMapper.selectCountByChannelId(channelId);
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}
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// ==================== 管理后台 ====================
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@Override
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public List<ImChannelMaterialDO> getMaterialListByChannelId(Long channelId) {
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return channelMaterialMapper.selectListByChannelId(channelId);
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}
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@Override
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public PageResult<ImChannelMaterialDO> getMaterialPage(ImChannelMaterialPageReqVO reqVO) {
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return channelMaterialMapper.selectPage(reqVO);
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}
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@Override
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public ImChannelMaterialDO getMaterial(Long id) {
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return channelMaterialMapper.selectById(id);
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}
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@Override
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public Long createMaterial(ImChannelMaterialSaveReqVO reqVO) {
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// 1. 校验所属频道存在
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channelService.validateChannelExists(reqVO.getChannelId());
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// 2. 插入素材
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ImChannelMaterialDO material = BeanUtils.toBean(reqVO, ImChannelMaterialDO.class);
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channelMaterialMapper.insert(material);
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return material.getId();
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}
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@Override
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public void updateMaterial(ImChannelMaterialSaveReqVO reqVO) {
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// 1.1 校验存在
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validateMaterialExists(reqVO.getId());
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// 1.2 校验所属频道存在
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channelService.validateChannelExists(reqVO.getChannelId());
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// 2. 更新素材
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ImChannelMaterialDO updateObj = BeanUtils.toBean(reqVO, ImChannelMaterialDO.class);
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channelMaterialMapper.updateById(updateObj);
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}
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@Override
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public void deleteMaterial(Long id) {
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validateMaterialExists(id);
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// 防止删除素材导致历史 channel_message 反查不到内容
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if (channelMessageMapper.selectCountByMaterialId(id) > 0) {
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throw exception(IM_CHANNEL_MATERIAL_USED);
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}
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channelMaterialMapper.deleteById(id);
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}
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}
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