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.Jsons;
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import com.tcm.training.admin.common.PageResponse;
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import com.tcm.training.admin.live.dto.LiveCourseStatusRequest;
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import com.tcm.training.admin.live.dto.LiveCourseUpsertRequest;
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import com.tcm.training.admin.live.entity.Expert;
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import com.tcm.training.admin.live.entity.LiveCourse;
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import com.tcm.training.admin.live.entity.LiveSession;
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import com.tcm.training.admin.live.entity.LiveSessionQuestion;
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import com.tcm.training.admin.live.mapper.ExpertMapper;
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import com.tcm.training.admin.live.mapper.LiveCourseMapper;
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import com.tcm.training.admin.live.mapper.LiveSessionMapper;
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import com.tcm.training.admin.live.mapper.LiveSessionQuestionMapper;
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import com.tcm.training.admin.live.vo.ExpertVO;
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import com.tcm.training.admin.live.vo.LiveCourseDetailVO;
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import com.tcm.training.admin.live.vo.LiveCourseListItemVO;
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import com.tcm.training.admin.live.vo.LiveCourseListRow;
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import com.tcm.training.admin.live.vo.LiveCourseDetailRow;
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import com.tcm.training.admin.live.vo.LiveCourseStatusVO;
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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 LiveCourseAppService {
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private final LiveCourseMapper liveCourseMapper;
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private final ExpertMapper expertMapper;
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private final LiveSessionMapper liveSessionMapper;
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private final LiveSessionQuestionMapper liveSessionQuestionMapper;
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public LiveCourseAppService(LiveCourseMapper liveCourseMapper,
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ExpertMapper expertMapper,
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LiveSessionMapper liveSessionMapper,
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LiveSessionQuestionMapper liveSessionQuestionMapper) {
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this.liveCourseMapper = liveCourseMapper;
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this.expertMapper = expertMapper;
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this.liveSessionMapper = liveSessionMapper;
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this.liveSessionQuestionMapper = liveSessionQuestionMapper;
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}
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public PageResponse<LiveCourseListItemVO> page(int page, int pageSize, String keyword, Long expertId, Integer status, Integer liveStatus) {
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IPage<LiveCourseListRow> p = liveCourseMapper.selectCoursePage(new Page<LiveCourseListRow>(page, pageSize),
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keyword, expertId, status, liveStatus);
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List<LiveCourseListItemVO> list = new ArrayList<LiveCourseListItemVO>();
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for (LiveCourseListRow row : p.getRecords()) {
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LiveCourseListItemVO vo = new LiveCourseListItemVO();
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vo.setId(row.getId());
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vo.setTitle(row.getTitle());
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vo.setLevel(row.getLevel());
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vo.setExpert(new ExpertVO(row.getExpertId(), row.getExpertName(), row.getExpertAvatar()));
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vo.setCoverImg(row.getCoverImg());
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vo.setReserveCount(row.getReserveCount() == null ? 0L : row.getReserveCount());
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vo.setWatchCount(row.getWatchCount() == null ? 0L : row.getWatchCount());
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vo.setQuizPoints(row.getQuizPoints());
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vo.setStartTime(row.getStartTime());
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vo.setLiveStatus(row.getLiveStatus());
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vo.setStatus(row.getStatus());
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vo.setCreatedAt(row.getCreatedAt());
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list.add(vo);
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}
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return PageResponse.of(list, p.getTotal(), p.getCurrent(), p.getSize());
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}
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@Transactional
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public LiveCourseDetailVO create(LiveCourseUpsertRequest req) {
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throw new IllegalArgumentException("直播课程为初始化数据，禁止新增");
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/*
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validateExpert(req.getExpertId());
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LiveCourse course = new LiveCourse();
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course.setTitle(req.getTitle());
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course.setLevel(req.getLevel());
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course.setExpertId(req.getExpertId());
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course.setCoverImg(req.getCoverImg());
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course.setBannerImgs(req.getBannerImgs());
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course.setIntro(req.getIntro());
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course.setTargetUsers(req.getTargetUsers());
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course.setQuizDelayMinutes(req.getQuizDelayMinutes());
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course.setQuizPoints(req.getQuizPoints());
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course.setStatus(req.getStatus());
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liveCourseMapper.insert(course);
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return detail(course.getId());
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*/
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}
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public LiveCourseDetailVO detail(Long id) {
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LiveCourseDetailRow row = liveCourseMapper.selectCourseDetail(id);
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if (row == null) {
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throw new IllegalArgumentException("课程不存在");
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}
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LiveCourseDetailVO vo = new LiveCourseDetailVO();
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vo.setId(row.getId());
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vo.setTitle(row.getTitle());
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vo.setLevel(row.getLevel());
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vo.setExpert(new ExpertVO(row.getExpertId(), row.getExpertName(), row.getExpertAvatar()));
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vo.setCoverImg(row.getCoverImg());
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vo.setBannerImgs(Jsons.parseStringList(row.getBannerImgs()));
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vo.setIntro(row.getIntro());
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vo.setTargetUsers(row.getTargetUsers());
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vo.setQuizDelayMinutes(row.getQuizDelayMinutes());
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vo.setQuizPoints(row.getQuizPoints());
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vo.setStartTime(row.getStartTime());
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vo.setVideoUrl(row.getVideoUrl());
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vo.setLiveStatus(row.getLiveStatus());
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vo.setStatus(row.getStatus());
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vo.setReserveCount(row.getReserveCount() == null ? 0L : row.getReserveCount());
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vo.setWatchCount(row.getWatchCount() == null ? 0L : row.getWatchCount());
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vo.setCreatedAt(row.getCreatedAt());
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vo.setUpdatedAt(row.getUpdatedAt());
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return vo;
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}
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@Transactional
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public LiveCourseDetailVO update(Long id, LiveCourseUpsertRequest req) {
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validateExpert(req.getExpertId());
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LiveCourse course = liveCourseMapper.selectById(id);
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if (course == null) {
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throw new IllegalArgumentException("课程不存在");
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}
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course.setTitle(req.getTitle());
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course.setLevel(req.getLevel());
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course.setExpertId(req.getExpertId());
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course.setCoverImg(req.getCoverImg());
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course.setBannerImgs(req.getBannerImgs());
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course.setIntro(req.getIntro());
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course.setTargetUsers(req.getTargetUsers());
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course.setQuizDelayMinutes(req.getQuizDelayMinutes());
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course.setQuizPoints(req.getQuizPoints());
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course.setStatus(req.getStatus());
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liveCourseMapper.updateById(course);
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return detail(id);
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}
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@Transactional
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public LiveCourseStatusVO patchStatus(Long id, LiveCourseStatusRequest req) {
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LiveCourse course = liveCourseMapper.selectById(id);
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if (course == null) {
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throw new IllegalArgumentException("课程不存在");
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}
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course.setStatus(req.getStatus());
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liveCourseMapper.updateById(course);
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return new LiveCourseStatusVO(id, req.getStatus());
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}
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@Transactional
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public void delete(Long id) {
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throw new IllegalArgumentException("直播课程为初始化数据，禁止删除");
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}
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private void validateExpert(Long expertId) {
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Expert expert = expertMapper.selectById(expertId);
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if (expert == null) {
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throw new IllegalArgumentException("授课专家不存在");
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}
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if (expert.getStatus() != null && expert.getStatus() != 1) {
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throw new IllegalArgumentException("授课专家已禁用");
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}
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}
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}
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