package com.ycl.jxkg.service.impl;
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import com.alibaba.fastjson.JSON;
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import com.alibaba.fastjson.JSONObject;
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import com.alibaba.fastjson2.JSONArray;
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
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import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.github.pagehelper.PageHelper;
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import com.github.pagehelper.PageInfo;
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import com.ycl.jxkg.base.Result;
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import com.ycl.jxkg.base.SystemCode;
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import com.ycl.jxkg.context.WebContext;
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import com.ycl.jxkg.domain.entity.ExamPaper;
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import com.ycl.jxkg.domain.entity.Question;
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import com.ycl.jxkg.domain.exam.PaperFixQuestionDTO;
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import com.ycl.jxkg.domain.exam.PaperQuestion;
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import com.ycl.jxkg.domain.exam.PaperQuestionSettingDTO;
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import com.ycl.jxkg.domain.form.ExamPaperForm;
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import com.ycl.jxkg.domain.other.KeyValue;
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import com.ycl.jxkg.domain.question.QuestionItemObject;
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import com.ycl.jxkg.domain.question.QuestionObject;
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import com.ycl.jxkg.domain.question.RandomQuestionDTO;
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import com.ycl.jxkg.domain.vo.admin.exam.ExamPaperEditRequestVO;
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import com.ycl.jxkg.domain.vo.admin.exam.ExamPaperPageRequestVO;
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import com.ycl.jxkg.domain.vo.admin.exam.ExamPaperTitleItemVO;
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import com.ycl.jxkg.domain.vo.admin.exam.ExamResponseVO;
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import com.ycl.jxkg.domain.vo.student.dashboard.PaperFilter;
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import com.ycl.jxkg.domain.vo.student.dashboard.PaperInfo;
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import com.ycl.jxkg.domain.vo.student.exam.ExamPaperPageVO;
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import com.ycl.jxkg.enums.ExamPaperTypeEnum;
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import com.ycl.jxkg.enums.QuestionTypeEnum;
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import com.ycl.jxkg.enums.VisibilityEnum;
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import com.ycl.jxkg.mapper.ExamPaperMapper;
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import com.ycl.jxkg.mapper.QuestionMapper;
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import com.ycl.jxkg.service.ExamPaperService;
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import com.ycl.jxkg.service.QuestionService;
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import com.ycl.jxkg.service.SubjectService;
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import com.ycl.jxkg.service.TextContentService;
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import com.ycl.jxkg.utils.DateTimeUtil;
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import com.ycl.jxkg.utils.JsonUtil;
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import com.ycl.jxkg.utils.PageInfoHelper;
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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.transaction.annotation.Transactional;
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import org.springframework.util.CollectionUtils;
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import java.math.BigDecimal;
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import java.util.*;
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import java.util.stream.Collectors;
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@Service
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@RequiredArgsConstructor
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public class ExamPaperServiceImpl extends ServiceImpl<ExamPaperMapper, ExamPaper> implements ExamPaperService {
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private final ExamPaperMapper examPaperMapper;
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private final QuestionMapper questionMapper;
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private final TextContentService textContentService;
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private final QuestionService questionService;
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private final SubjectService subjectService;
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private final WebContext webContext;
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@Override
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@Transactional(rollbackFor = Exception.class)
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public Result addPaper(ExamPaperForm form) {
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ExamPaper examPaper = ExamPaperForm.getEntityByForm(form, null);
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examPaper.setScore(new BigDecimal(form.getScore()));
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//随机试卷
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if (ExamPaperTypeEnum.Random.getCode().equals(form.getPaperType())) {
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//校验题目数量
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List<PaperQuestionSettingDTO> questionSetting = form.getQuestionSetting();
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//题目配置里配的试卷类型
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List<Integer> types = questionSetting.stream().map(PaperQuestionSettingDTO::getQuestionType).collect(Collectors.toList());
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Map<Integer, List<Integer>> map = questionMapper.selectBySubject(form.getSubjectId(), types)
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.stream().collect(Collectors.groupingBy(RandomQuestionDTO::getQuestionType, Collectors.mapping(RandomQuestionDTO::getQuestionId, Collectors.toList())));
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for (PaperQuestionSettingDTO settingDTO : questionSetting) {
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Integer num = settingDTO.getNum();
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Integer questionType = settingDTO.getQuestionType();
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//需要配置的题目数量为0则跳过
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if(num ==null || num ==0 )continue;
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List<Integer> questions = map.get(questionType);
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if(CollectionUtils.isEmpty(questions) || num > questions.size())return Result.fail(SystemCode.InnerError.getCode(), QuestionTypeEnum.fromCode(questionType).getName()+"题目数量不足");
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}
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examPaper.setContent(JSON.toJSONString(form.getQuestionSetting()));
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baseMapper.insert(examPaper);
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return Result.ok();
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} else if (ExamPaperTypeEnum.Fixed.getCode().equals(form.getPaperType())) {
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//固定试卷
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examPaper.setContent(JSON.toJSONString(form.getQuestionTitleList()));
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baseMapper.insert(examPaper);
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return Result.ok();
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} else {
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//随序试卷
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Integer subjectId = form.getSubjectId();
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//题目配置
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List<PaperQuestionSettingDTO> questionSetting = form.getQuestionSetting();
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//题目配置里配的试卷类型
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List<Integer> types = questionSetting.stream().map(PaperQuestionSettingDTO::getQuestionType).collect(Collectors.toList());
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if (CollectionUtils.isEmpty(types)) {
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return Result.fail(SystemCode.InnerError.getCode(), "试卷题目类型不能为空");
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}
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Map<Integer, List<Integer>> map = questionMapper.selectBySubject(subjectId, types)
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.stream().collect(Collectors.groupingBy(RandomQuestionDTO::getQuestionType, Collectors.mapping(RandomQuestionDTO::getQuestionId, Collectors.toList())));
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List<PaperFixQuestionDTO> questionTitleList = new ArrayList<>();
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// 遍历map
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for (Integer questionType : map.keySet()) {
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//数据库里的这个类型的题目
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List<Integer> questionIdList = map.get(questionType);
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Result result = createQuestion(questionSetting, questionTitleList, questionType, questionIdList,QuestionTypeEnum.fromCode(questionType).getCode());
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if (result != null) return result;
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}
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examPaper.setContent(JSON.toJSONString(questionTitleList));
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baseMapper.insert(examPaper);
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return Result.ok();
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}
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}
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//生成题目
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private Result createQuestion(List<PaperQuestionSettingDTO> questionSetting, List<PaperFixQuestionDTO> questionTitleList, Integer questionType, List<Integer> questionIdList , Integer questionEnumCode) {
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if (questionType.equals(questionEnumCode)) {
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//循环找到对应题目
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PaperQuestionSettingDTO settingDTO = new PaperQuestionSettingDTO();
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for (PaperQuestionSettingDTO dto : questionSetting) {
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if (dto.getQuestionType().equals(questionType)) {
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settingDTO = dto;
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}
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}// 需要生成的题目数量
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Integer num = settingDTO.getNum();
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if(num ==null || num ==0 ){
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//题目配置此类型数量为0，跳过，不生成题目。
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return null;
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}
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if (CollectionUtils.isEmpty(questionIdList) || num > questionIdList.size()) {
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return Result.fail(SystemCode.InnerError.getCode(), QuestionTypeEnum.fromCode(questionType).getName()+"题目数量不足");
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}
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// 使用Random类生成不重复的随机索引
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Set<Integer> indexes = new HashSet<>();
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Random random = new Random();
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while (indexes.size() < num) {
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int index = random.nextInt(questionIdList.size());
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indexes.add(index);
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}
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// 根据索引获取题目
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List<Integer> questionIds = new ArrayList<>();
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for (int index : indexes) {
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questionIds.add(questionIdList.get(index));
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}
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QueryWrapper<Question> wrapper = new QueryWrapper<>();
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wrapper.in("id",questionIds);
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List<Question> questions = questionMapper.selectList(wrapper);
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List<PaperQuestion> questionList = new ArrayList<>();
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for (Question question : questions) {
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PaperQuestion paperQuestion = new PaperQuestion();
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BeanUtils.copyProperties(question,paperQuestion);
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paperQuestion.setScore(settingDTO.getScore());
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//转换
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QuestionObject questionObject = JSONObject.parseObject(question.getContent(), QuestionObject.class);
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if(questionObject != null){
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paperQuestion.setItems(questionObject.getQuestionItemObjects());
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paperQuestion.setAnalyze(questionObject.getAnalyze());
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paperQuestion.setTitle(questionObject.getTitleContent());
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}
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questionList.add(paperQuestion);
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}
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PaperFixQuestionDTO dto = new PaperFixQuestionDTO();
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dto.setTitle(settingDTO.getTitle());
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dto.setQuestionType(questionType);
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dto.setQuestionList(questionList);
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questionTitleList.add(dto);
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}
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return null;
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}
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@Override
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public Result updateExamPaper(ExamPaperForm form) {
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ExamPaper examPaper = ExamPaperForm.getEntityByForm(form, null);
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examPaper.setScore(new BigDecimal(form.getScore()));
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//随机试卷
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if (ExamPaperTypeEnum.Random.getCode().equals(form.getPaperType())) {
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examPaper.setContent(JSON.toJSONString(form.getQuestionSetting()));
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baseMapper.updateById(examPaper);
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return Result.ok();
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} else if (ExamPaperTypeEnum.Fixed.getCode().equals(form.getPaperType())) {
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//固定试卷
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examPaper.setContent(JSON.toJSONString(form.getQuestionTitleList()));
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baseMapper.updateById(examPaper);
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return Result.ok();
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} else {
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//随序试卷
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examPaper.setContent(JSON.toJSONString(form.getQuestionTitleList()));
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baseMapper.updateById(examPaper);
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return Result.ok();
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}
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}
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@Override
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public PageInfo<ExamResponseVO> page(ExamPaperPageRequestVO requestVM) {
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PageInfo<ExamPaper> page = PageHelper.startPage(requestVM.getPageIndex(), requestVM.getPageSize(), "id desc").doSelectPageInfo(() ->
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examPaperMapper.page(requestVM));
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PageInfo<ExamResponseVO> pageVO = PageInfoHelper.copyMap(page, e -> {
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ExamResponseVO vo = new ExamResponseVO();
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BeanUtils.copyProperties(e, vo);
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vo.setVisibility(VisibilityEnum.valueOf(vo.getVisibility()).getCode() + "");
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vo.setCreateTime(DateTimeUtil.dateFormat(e.getCreateTime()));
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return vo;
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});
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return pageVO;
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}
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// @Override
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// public PageInfo<ExamPaper> taskExamPage(ExamPaperPageRequestVO requestVM) {
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// return PageHelper.startPage(requestVM.getPageIndex(), requestVM.getPageSize(), "id desc").doSelectPageInfo(() ->
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// examPaperMapper.taskExamPage(requestVM));
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// }
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@Override
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public PageInfo<ExamPaper> studentPage(ExamPaperPageVO requestVM) {
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return PageHelper.startPage(requestVM.getPageIndex(), requestVM.getPageSize(), "id desc").doSelectPageInfo(() ->
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examPaperMapper.studentPage(requestVM));
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}
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// @Override
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// @Transactional
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// public ExamPaper savePaperFromVM(ExamPaperEditRequestVO examPaperEditRequestVO, User user) {
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// ActionEnum actionEnum = (examPaperEditRequestVO.getId() == null) ? ActionEnum.ADD : ActionEnum.UPDATE;
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// Date now = new Date();
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// List<ExamPaperTitleItemVO> titleItemsVM = examPaperEditRequestVO.getTitleItems();
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// List<ExamPaperTitleItemObject> frameTextContentList = frameTextContentFromVM(titleItemsVM);
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// String frameTextContentStr = JsonUtil.toJsonStr(frameTextContentList);
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//
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// ExamPaper examPaper = new ExamPaper();
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// BeanUtils.copyProperties(examPaperEditRequestVO, examPaper);
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// if (actionEnum == ActionEnum.ADD) {
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// TextContent frameTextContent = new TextContent();
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// frameTextContent.setContent(frameTextContentStr);
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// frameTextContent.setCreateTime(now);
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// textContentService.save(frameTextContent);
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// examPaper.setCreateTime(now);
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// examPaper.setCreateUser(user.getId());
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// examPaperFromVM(examPaperEditRequestVO, examPaper, titleItemsVM);
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// examPaperMapper.insert(examPaper);
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// } else {
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// examPaper = examPaperMapper.selectById(examPaperEditRequestVO.getId());
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// //TODO:
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// TextContent frameTextContent = textContentService.getById(examPaper.getFrameTextContentId());
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// frameTextContent.setContent(frameTextContentStr);
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// textContentService.updateById(frameTextContent);
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// examPaperFromVM(examPaperEditRequestVO, examPaper, titleItemsVM);
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// examPaperMapper.updateById(examPaper);
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// }
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// return examPaper;
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// }
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@Override
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public ExamPaperEditRequestVO examPaperToVM(Integer id) {
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ExamPaper examPaper = examPaperMapper.selectById(id);
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ExamPaperEditRequestVO vo = new ExamPaperEditRequestVO();
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BeanUtils.copyProperties(examPaper, vo);
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vo.setVisibility(VisibilityEnum.valueOf(vo.getVisibility()).getCode());
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//随机试卷
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if (ExamPaperTypeEnum.Random.getCode().equals(examPaper.getPaperType())) {
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vo.setQuestionSetting(JSONArray.parseArray(examPaper.getContent(), PaperQuestionSettingDTO.class));
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} else if (ExamPaperTypeEnum.Fixed.getCode().equals(examPaper.getPaperType())) {
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//固定试卷
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vo.setQuestionTitleList(JSONArray.parseArray(examPaper.getContent(), PaperFixQuestionDTO.class));
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} else {
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//随序试卷
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vo.setQuestionTitleList(JSONArray.parseArray(examPaper.getContent(), PaperFixQuestionDTO.class));
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}
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return vo;
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}
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@Override
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public List<PaperInfo> indexPaper(PaperFilter paperFilter) {
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return examPaperMapper.indexPaper(paperFilter);
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}
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@Override
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public Integer selectAllCount() {
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return examPaperMapper.selectAllCount();
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}
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@Override
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public List<Integer> selectMothCount() {
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Date startTime = DateTimeUtil.getMonthStartDay();
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Date endTime = DateTimeUtil.getMonthEndDay();
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List<KeyValue> mouthCount = examPaperMapper.selectCountByDate(startTime, endTime);
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List<String> mothStartToNowFormat = DateTimeUtil.MothStartToNowFormat();
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return mothStartToNowFormat.stream().map(md -> {
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KeyValue keyValue = mouthCount.stream().filter(kv -> kv.getName().equals(md)).findAny().orElse(null);
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return null == keyValue ? 0 : keyValue.getValue();
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}).collect(Collectors.toList());
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}
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private void examPaperFromVM(ExamPaperEditRequestVO examPaperEditRequestVO, ExamPaper examPaper, List<ExamPaperTitleItemVO> titleItemsVM) {
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//TODO:
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// Integer gradeLevel = subjectService.levelBySubjectId(examPaperEditRequestVO.getSubjectId());
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// Integer questionCount = titleItemsVM.stream()
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// .mapToInt(t -> t.getQuestionItems().size()).sum();
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// Integer score = titleItemsVM.stream().
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// flatMapToInt(t -> t.getQuestionItems().stream()
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// .mapToInt(q -> ExamUtil.scoreFromVM(q.getScore()))
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// ).sum();
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// examPaper.setQuestionCount(questionCount);
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// examPaper.setScore(score);
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// examPaper.setGradeLevel(gradeLevel);
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// List<String> dateTimes = examPaperEditRequestVO.getLimitDateTime();
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// if (ExamPaperTypeEnum.Random == ExamPaperTypeEnum.fromCode(examPaper.getPaperType())) {
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// examPaper.setLimitStartTime(DateTimeUtil.parse(dateTimes.get(0), DateTimeUtil.STANDER_FORMAT));
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// examPaper.setLimitEndTime(DateTimeUtil.parse(dateTimes.get(1), DateTimeUtil.STANDER_FORMAT));
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// }
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}
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// private List<ExamPaperTitleItemObject> frameTextContentFromVM(List<ExamPaperTitleItemVO> titleItems) {
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// AtomicInteger index = new AtomicInteger(1);
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// return titleItems.stream().map(t -> {
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// ExamPaperTitleItemObject titleItem = new ExamPaperTitleItemObject();
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// BeanUtils.copyProperties(t, titleItem);
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// List<ExamPaperQuestionItemObject> questionItems = t.getQuestionItems().stream()
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// .map(q -> {
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// ExamPaperQuestionItemObject examPaperQuestionItemObject = new ExamPaperQuestionItemObject();
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// BeanUtils.copyProperties(q, examPaperQuestionItemObject);
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// examPaperQuestionItemObject.setItemOrder(index.getAndIncrement());
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// return examPaperQuestionItemObject;
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// })
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// .collect(Collectors.toList());
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// titleItem.setQuestionItems(questionItems);
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// return titleItem;
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// }).collect(Collectors.toList());
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// }
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@Override
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public List<ExamPaper> myExamPaper(Integer paperType) {
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Integer userId = webContext.getCurrentUser().getId();
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List<ExamPaper> list = new LambdaQueryChainWrapper<>(baseMapper)
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.select(ExamPaper::getId, ExamPaper::getName, ExamPaper::getVisibility)
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.eq(ExamPaper::getCreateUser, userId)
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.eq(Objects.nonNull(paperType), ExamPaper::getPaperType, paperType)
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.or()
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.eq(ExamPaper::getVisibility, VisibilityEnum.Public.getName())
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.eq(Objects.nonNull(paperType), ExamPaper::getPaperType, paperType)
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.list();
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list.stream().forEach(item -> {
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if (VisibilityEnum.Public.getName().equals(item.getVisibility())) {
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item.setName(item.getName() + " (公开)");
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}
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});
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return list;
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}
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}
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