package com.mindskip.xzs.service.impl;
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import ch.qos.logback.core.joran.util.beans.BeanUtil;
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import com.alibaba.fastjson.JSON;
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import com.github.pagehelper.PageHelper;
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import com.github.pagehelper.PageInfo;
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import com.mindskip.xzs.base.RestResponse;
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import com.mindskip.xzs.context.WebContext;
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import com.mindskip.xzs.domain.ExamPaperAnswer;
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import com.mindskip.xzs.domain.Question;
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import com.mindskip.xzs.domain.SelfPractice;
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import com.mindskip.xzs.domain.enums.PracticeQuestionTypeEnum;
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import com.mindskip.xzs.domain.enums.PracticeTypeEnum;
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import com.mindskip.xzs.domain.enums.QuestionTypeEnum;
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import com.mindskip.xzs.domain.vo.QuestionContentVO;
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import com.mindskip.xzs.domain.vo.QuestionVO;
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import com.mindskip.xzs.domain.vo.SelfPracticeVO;
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import com.mindskip.xzs.domain.vo.SubjectQuestionVO;
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import com.mindskip.xzs.repository.QuestionMapper;
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import com.mindskip.xzs.repository.QuestionSubjectMapper;
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import com.mindskip.xzs.repository.SelfPracticeMapper;
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import com.mindskip.xzs.repository.SubjectMapper;
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import com.mindskip.xzs.service.SelfPracticeService;
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import lombok.RequiredArgsConstructor;
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import org.springframework.beans.BeanUtils;
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import org.springframework.stereotype.Service;
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import org.springframework.util.CollectionUtils;
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import org.springframework.util.StringUtils;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.List;
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import java.util.Objects;
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import java.util.stream.Collectors;
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/**
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* @author：xp
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* @date：2024/5/9 16:16
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*/
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@Service
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@RequiredArgsConstructor
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public class SelfPracticeServiceImpl implements SelfPracticeService {
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private final SelfPracticeMapper selfPracticeMapper;
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private final WebContext webContext;
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private final QuestionSubjectMapper questionSubjectMapper;
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private final SubjectMapper subjectMapper;
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private final QuestionMapper questionMapper;
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@Override
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public RestResponse add(SelfPracticeVO vo) {
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SelfPractice entity = new SelfPractice();
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BeanUtils.copyProperties(vo, entity);
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entity.setSubjects(JSON.toJSONString(vo.getSubjects()));
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entity.setCreateTime(new Date());
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entity.setUpdateTime(new Date());
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entity.setDeleted(0);
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entity.setDoNum(0);
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entity.setUserId(webContext.getCurrentUser().getId());
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selfPracticeMapper.add(entity);
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return RestResponse.ok("创建成功");
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}
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@Override
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public RestResponse page(SelfPracticeVO query) {
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if (! Objects.equals(3, webContext.getCurrentUser().getRole())) {
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query.setUserId(webContext.getCurrentUser().getId());
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}
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PageInfo<SelfPracticeVO> info = PageHelper.startPage(query.getPageNum(), query.getPageSize()).doSelectPageInfo(() ->
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selfPracticeMapper.page(query));
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info.getList().stream().forEach(item -> {
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List<Integer> subjects = JSON.parseArray(item.getSubjectString(), Integer.class);
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item.setSubjects(subjects);
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List<String> subjectNames = subjectMapper.selectSubjectName(subjects);
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if (! CollectionUtils.isEmpty(subjectNames)) {
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item.setSubjectNames(subjectNames.stream().collect(Collectors.joining("、")));
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}
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item.setTotalQuestionNum(questionSubjectMapper.countQuestionNum(subjects));
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});
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return RestResponse.ok(info);
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}
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@Override
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public RestResponse remove(List<Integer> ids) {
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selfPracticeMapper.remove(ids);
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return RestResponse.ok("删除成功");
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}
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@Override
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public RestResponse startPractice(Integer id) {
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SelfPractice en = selfPracticeMapper.selectById(id);
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if (Objects.isNull(en)) {
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throw new RuntimeException("练习不存在");
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}
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List<Integer> subjectIds = JSON.parseArray(en.getSubjects(), Integer.class);
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if (PracticeTypeEnum.ORDERED.getValue().equals(en.getPracticeType())) {
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List<SubjectQuestionVO> list = new ArrayList<>(2);
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// 顺序做题，把选择的题库的题(id)全部查出来，前端有个序号面板，点击哪道题做哪道
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for (Integer subjectId : subjectIds) {
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String subjectName = subjectMapper.selectSubjectNameById(subjectId);
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// todo根据做题记录查询做没做过
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List<Integer> questionIds = new ArrayList<>();
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if (PracticeQuestionTypeEnum.ALL.getValue().equals(en.getQuestionType())) {
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questionIds = questionSubjectMapper.questionsBySubjectId(subjectId);
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} else {
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questionIds = questionSubjectMapper.questionsBySubjectIdAndQuestionType(subjectId, PracticeQuestionTypeEnum.getDataBaseValueByValue(en.getQuestionType()));
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}
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SubjectQuestionVO subjectQuestionVO = new SubjectQuestionVO();
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subjectQuestionVO.setSubjectId(subjectId);
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subjectQuestionVO.setSubjectName(subjectName);
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subjectQuestionVO.setQuestionIds(questionIds);
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list.add(subjectQuestionVO);
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}
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return RestResponse.ok(list);
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} else if (PracticeTypeEnum.RANDOM.getValue().equals(en.getPracticeType())) {
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// 随机练习，是一道题一道题练习
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List<QuestionVO> one = questionSubjectMapper.getRandomQuestionId(subjectIds, PracticeQuestionTypeEnum.getDataBaseValueByValue(en.getQuestionType()), 1);
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if (one.size() < 1) {
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throw new RuntimeException("没有找到题目，可能所选课目包含题目不足");
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}
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QuestionVO questionVO = one.get(0);
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jsonQuestion(questionVO);
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return RestResponse.ok(questionVO);
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}
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return RestResponse.ok();
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}
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@Override
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public RestResponse subjectQuestionNum(List<Integer> subjectIds) {
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Integer num = questionSubjectMapper.countQuestionNum(subjectIds);
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return RestResponse.ok(num);
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}
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@Override
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public RestResponse randomOneQuestion(Integer id) {
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SelfPractice en = selfPracticeMapper.selectById(id);
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if (Objects.isNull(en)) {
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throw new RuntimeException("练习不存在");
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}
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List<Integer> subjectIds = JSON.parseArray(en.getSubjects(), Integer.class);
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List<QuestionVO> one = questionSubjectMapper.getRandomQuestionId(subjectIds, PracticeQuestionTypeEnum.getDataBaseValueByValue(en.getQuestionType()), 1);
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if (one.size() < 1) {
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throw new RuntimeException("没有找到题目，可能所选课目包含题目不足");
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}
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QuestionVO questionVO = one.get(0);
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jsonQuestion(questionVO);
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return RestResponse.ok(questionVO);
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}
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/**
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* 处理题目内容JSON
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*
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* @param questionVO
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*/
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public void jsonQuestion(QuestionVO questionVO) {
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if (StringUtils.hasText(questionVO.getContentJson())) {
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QuestionContentVO questionContent = JSON.parseObject(questionVO.getContentJson(), QuestionContentVO.class);
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questionVO.setContent(questionContent);
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}
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if (QuestionTypeEnum.MultipleChoice.getCode().equals(questionVO.getQuestionType())) {
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// 多选题需要返回答案数量，学员选中对应数量才查询答案
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if (StringUtils.hasText(questionVO.getCorrect())) {
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questionVO.setAnswerNum(questionVO.getCorrect().split(",").length);
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}
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}
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questionVO.setContentJson("");
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questionVO.setCorrect("");
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questionVO.getContent().setCorrect("");
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questionVO.getContent().setAnalyze("");
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}
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}
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