package com.tcm.training.admin.live.service;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.tcm.training.admin.common.PageResponse;
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import com.tcm.training.admin.live.dto.ProjectIntroductionSaveRequest;
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import com.tcm.training.admin.live.entity.ProjectIntroduction;
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import com.tcm.training.admin.live.mapper.ProjectIntroductionMapper;
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import com.tcm.training.admin.live.vo.ProjectIntroductionDetailVO;
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import com.tcm.training.admin.live.vo.ProjectIntroductionListItemVO;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import java.util.ArrayList;
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import java.util.List;
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@Service
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public class ProjectIntroductionAppService {
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private final ProjectIntroductionMapper projectIntroductionMapper;
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public ProjectIntroductionAppService(ProjectIntroductionMapper projectIntroductionMapper) {
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this.projectIntroductionMapper = projectIntroductionMapper;
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}
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public PageResponse<ProjectIntroductionListItemVO> page(int page,
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int pageSize,
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String keyword,
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String category,
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Integer contentType,
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Integer status) {
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LambdaQueryWrapper<ProjectIntroduction> qw = new LambdaQueryWrapper<ProjectIntroduction>()
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.eq(ProjectIntroduction::getDeleted, 0)
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.orderByDesc(ProjectIntroduction::getId);
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String trimmedKeyword = trimToNull(keyword);
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if (trimmedKeyword != null) {
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qw.like(ProjectIntroduction::getTitle, trimmedKeyword);
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}
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if (category != null && !category.trim().isEmpty()) {
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qw.eq(ProjectIntroduction::getCategory, category.trim());
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}
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if (contentType != null) {
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qw.eq(ProjectIntroduction::getContentType, contentType);
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}
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if (status != null) {
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qw.eq(ProjectIntroduction::getStatus, status);
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}
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IPage<ProjectIntroduction> result = projectIntroductionMapper.selectPage(new Page<ProjectIntroduction>(page, pageSize), qw);
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List<ProjectIntroductionListItemVO> list = new ArrayList<ProjectIntroductionListItemVO>();
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for (ProjectIntroduction item : result.getRecords()) {
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list.add(toListItem(item));
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}
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return PageResponse.of(list, result.getTotal(), result.getCurrent(), result.getSize());
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}
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public ProjectIntroductionDetailVO detail(Long id) {
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return toDetailVO(requireItem(id));
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}
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@Transactional
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public ProjectIntroductionDetailVO create(ProjectIntroductionSaveRequest req) {
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ProjectIntroduction item = new ProjectIntroduction();
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fillEntity(item, req);
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item.setClickCount(0);
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item.setDeleted(0);
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projectIntroductionMapper.insert(item);
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return detail(item.getId());
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}
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@Transactional
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public ProjectIntroductionDetailVO update(Long id, ProjectIntroductionSaveRequest req) {
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ProjectIntroduction item = requireItem(id);
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fillEntity(item, req);
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projectIntroductionMapper.updateById(item);
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return detail(id);
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}
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@Transactional
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public void delete(Long id) {
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requireItem(id);
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projectIntroductionMapper.deleteById(id);
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}
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private void fillEntity(ProjectIntroduction item, ProjectIntroductionSaveRequest req) {
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int contentType = validateContentType(req.getContentType());
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String category = validateCategory(req.getCategory());
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item.setTitle(req.getTitle().trim());
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item.setCoverImg(req.getCoverImg().trim());
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item.setCategory(category);
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item.setContentType(contentType);
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item.setStatus(req.getStatus());
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if (contentType == ProjectIntroduction.CONTENT_TYPE_ARTICLE) {
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String content = trimToNull(req.getContent());
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if (content == null) {
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throw new IllegalArgumentException("请输入内容");
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}
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item.setContent(content);
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item.setVideoUrl(null);
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item.setVideoFileName(null);
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return;
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}
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String videoUrl = trimToNull(req.getVideoUrl());
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if (videoUrl == null) {
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throw new IllegalArgumentException("请填写视频地址或上传本地视频");
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}
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item.setContent(null);
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item.setVideoUrl(videoUrl);
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item.setVideoFileName(trimToNull(req.getVideoFileName()));
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}
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private int validateContentType(Integer contentType) {
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if (contentType == null) {
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throw new IllegalArgumentException("请选择类型");
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}
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if (contentType != ProjectIntroduction.CONTENT_TYPE_ARTICLE
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&& contentType != ProjectIntroduction.CONTENT_TYPE_VIDEO) {
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throw new IllegalArgumentException("类型不合法");
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}
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return contentType;
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}
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private String validateCategory(String category) {
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if (category == null || category.trim().isEmpty()) {
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throw new IllegalArgumentException("请选择类别");
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}
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String trimmed = category.trim();
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if (!ProjectIntroduction.CATEGORY_PLATFORM.equals(trimmed)
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&& !ProjectIntroduction.CATEGORY_MARKETING_MODEL.equals(trimmed)
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&& !ProjectIntroduction.CATEGORY_MARKETING_ACTION.equals(trimmed)) {
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throw new IllegalArgumentException("类别不合法");
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}
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return trimmed;
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}
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private ProjectIntroduction requireItem(Long id) {
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ProjectIntroduction item = projectIntroductionMapper.selectOne(new LambdaQueryWrapper<ProjectIntroduction>()
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.eq(ProjectIntroduction::getId, id)
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.eq(ProjectIntroduction::getDeleted, 0)
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.last("limit 1"));
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if (item == null) {
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throw new IllegalArgumentException("项目介绍不存在");
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}
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return item;
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}
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private ProjectIntroductionListItemVO toListItem(ProjectIntroduction item) {
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ProjectIntroductionListItemVO vo = new ProjectIntroductionListItemVO();
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vo.setId(item.getId());
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vo.setTitle(item.getTitle());
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vo.setCoverImg(item.getCoverImg());
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vo.setCategory(item.getCategory());
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vo.setContentType(item.getContentType());
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vo.setStatus(item.getStatus());
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vo.setClickCount(defaultNumber(item.getClickCount()));
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vo.setCreatedAt(item.getCreatedAt());
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return vo;
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}
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private ProjectIntroductionDetailVO toDetailVO(ProjectIntroduction item) {
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ProjectIntroductionDetailVO vo = new ProjectIntroductionDetailVO();
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vo.setId(item.getId());
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vo.setTitle(item.getTitle());
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vo.setCoverImg(item.getCoverImg());
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vo.setCategory(item.getCategory());
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vo.setContentType(item.getContentType());
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vo.setContent(item.getContent());
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vo.setVideoUrl(item.getVideoUrl());
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vo.setVideoFileName(item.getVideoFileName());
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vo.setStatus(item.getStatus());
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vo.setClickCount(defaultNumber(item.getClickCount()));
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vo.setCreatedAt(item.getCreatedAt());
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vo.setUpdatedAt(item.getUpdatedAt());
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return vo;
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}
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private Integer defaultNumber(Integer value) {
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return value == null ? 0 : value;
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}
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private String trimToNull(String value) {
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if (value == null) {
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return null;
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}
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String trimmed = value.trim();
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return trimmed.isEmpty() ? null : trimmed;
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}
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}
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