package com.ycl.jxkg.service.impl;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.ycl.jxkg.domain.entity.ExamPaperScore;
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import com.ycl.jxkg.domain.entity.Question;
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import com.ycl.jxkg.domain.vo.DoQuestionVO;
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import com.ycl.jxkg.domain.vo.PaperFixQuestionVO;
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import com.ycl.jxkg.domain.vo.student.wrong.WrongPageVo;
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import com.ycl.jxkg.domain.vo.student.wrong.WrongRequestVo;
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import com.ycl.jxkg.domain.vo.student.wrong.WrongResponseVO;
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import com.ycl.jxkg.mapper.ExamPaperScoreMapper;
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import com.ycl.jxkg.mapper.QuestionMapper;
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import com.ycl.jxkg.service.WrongService;
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import com.ycl.jxkg.utils.JsonUtil;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Optional;
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import java.util.stream.Collectors;
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@Service
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@RequiredArgsConstructor
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@Slf4j
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public class WrongServiceImpl implements WrongService {
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@Autowired
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private ExamPaperScoreMapper examPaperScoreMapper;
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@Autowired
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private QuestionMapper questionMapper;
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/**
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* 条件查询错题
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* */
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@Override
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public WrongResponseVO list(WrongRequestVo wrongRequestVo) {
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WrongResponseVO wrongResponseVO = new WrongResponseVO();
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// 查询该用户的所有考试
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List<ExamPaperScore> examPaperScores = examPaperScoreMapper.selectByUserId(wrongRequestVo.getUserId());
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List<DoQuestionVO> questions = new ArrayList<>();
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// 遍历所有考试获得考试详情
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examPaperScores.stream().forEach(examPaperScore -> {
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try{
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// 解析json字符串
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List<PaperFixQuestionVO> paperFixQuestionVOS = JsonUtil.toJsonListObject(examPaperScore.getPaperContent(), PaperFixQuestionVO.class);
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paperFixQuestionVOS.stream().forEach(paperFixQuestionVO -> {
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List<DoQuestionVO> doQuestionVOS = paperFixQuestionVO.getQuestionList().stream()
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.filter(doQuestionVO -> !doQuestionVO.getRight())
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.map(doQuestionVO -> {
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// 根据id查询题干
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Question question = questionMapper.selectOne(new LambdaQueryWrapper<>(Question.class).eq(Question::getId, doQuestionVO.getId()));
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// Question question = questionMapper.selectById(doQuestionVO.getId());
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doQuestionVO.setExamId(examPaperScore.getExamId());
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doQuestionVO.setExamName(examPaperScore.getExamName());
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doQuestionVO.setTitle(question.getTitle());
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// 考试结果记录id
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doQuestionVO.setId(examPaperScore.getId());
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return doQuestionVO;
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})
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.collect(Collectors.toList());
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questions.addAll(doQuestionVOS);
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});
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}catch (Exception e){
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e.printStackTrace();
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}
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});
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// 条件查询
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// 对集合中的题目进行模糊查询过滤
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List<DoQuestionVO> doQuestionVOS = questions.stream()
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// 标题不为空或空字符串，模糊查询
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.filter(question -> {
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if (wrongRequestVo.getTitle() == null || wrongRequestVo.getTitle().trim().isEmpty()) {
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return true;
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}
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return Optional.ofNullable(question.getTitle()).orElse("").toLowerCase().contains(wrongRequestVo.getTitle().toLowerCase());
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})
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.filter(question -> {
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if (wrongRequestVo.getQuestionType() == null) {
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return true;
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}
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return question.getQuestionType().equals(wrongRequestVo.getQuestionType());
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})
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.filter(question -> {
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if (wrongRequestVo.getExamName() == null || wrongRequestVo.getExamName().trim().isEmpty()) {
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return true;
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}
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return Optional.ofNullable(question.getExamName()).orElse("").toLowerCase().contains(wrongRequestVo.getExamName().toLowerCase());
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})
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.collect(Collectors.toList());
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// 分页
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List<DoQuestionVO> list = doQuestionVOS.stream().skip((wrongRequestVo.getPageIndex() - 1) * wrongRequestVo.getPageSize()).collect(Collectors.toList()).stream().limit(wrongRequestVo.getPageSize()).collect(Collectors.toList());
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wrongResponseVO.setList(list);
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wrongResponseVO.setTotal(doQuestionVOS.size());
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wrongResponseVO.setPageSize(wrongRequestVo.getPageSize());
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wrongResponseVO.setPageIndex(wrongRequestVo.getPageIndex());
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return wrongResponseVO;
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}
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}
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