达梦不支持value改为values

fuliqi

2024-10-17 8546b3d285af4235a0ef615a0c6e89486ae2c806

 src/main/java/com/ycl/jxkg/service/impl/ExamPaperServiceImpl.java

@@ -1,146 +1,266 @@
package com.ycl.jxkg.service.impl;

import com.ycl.jxkg.domain.TextContent;
import com.ycl.jxkg.domain.enums.ExamPaperTypeEnum;
import com.ycl.jxkg.domain.exam.ExamPaperQuestionItemObject;
import com.ycl.jxkg.domain.exam.ExamPaperTitleItemObject;
import com.alibaba.excel.EasyExcel;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson2.JSONArray;
import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.ycl.jxkg.base.Result;
import com.ycl.jxkg.base.SystemCode;
import com.ycl.jxkg.context.WebContext;
import com.ycl.jxkg.domain.entity.ExamPaper;
import com.ycl.jxkg.domain.entity.Question;
import com.ycl.jxkg.domain.entity.Subject;
import com.ycl.jxkg.domain.exam.PaperFixQuestionDTO;
import com.ycl.jxkg.domain.exam.PaperQuestion;
import com.ycl.jxkg.domain.exam.PaperQuestionSettingDTO;
import com.ycl.jxkg.domain.exam.PaperSettingItem;
import com.ycl.jxkg.domain.form.ExamPaperForm;
import com.ycl.jxkg.domain.other.KeyValue;
import com.ycl.jxkg.repository.ExamPaperMapper;
import com.ycl.jxkg.repository.QuestionMapper;
import com.ycl.jxkg.domain.question.QuestionItemObject;
import com.ycl.jxkg.domain.question.QuestionObject;
import com.ycl.jxkg.domain.question.RandomQuestionDTO;
import com.ycl.jxkg.domain.vo.admin.exam.*;
import com.ycl.jxkg.domain.vo.student.dashboard.PaperFilter;
import com.ycl.jxkg.domain.vo.student.dashboard.PaperInfo;
import com.ycl.jxkg.domain.vo.student.exam.ExamPaperPageVO;
import com.ycl.jxkg.enums.ExamPaperTypeEnum;
import com.ycl.jxkg.enums.QuestionTypeEnum;
import com.ycl.jxkg.enums.VisibilityEnum;
import com.ycl.jxkg.enums.general.StatusEnum;
import com.ycl.jxkg.excel.*;
import com.ycl.jxkg.mapper.ExamPaperMapper;
import com.ycl.jxkg.mapper.QuestionMapper;
import com.ycl.jxkg.service.ExamPaperService;
import com.ycl.jxkg.service.QuestionService;
import com.ycl.jxkg.service.SubjectService;
import com.ycl.jxkg.service.TextContentService;
import com.ycl.jxkg.service.enums.ActionEnum;
import com.ycl.jxkg.utility.DateTimeUtil;
import com.ycl.jxkg.utility.JsonUtil;
import com.ycl.jxkg.utility.ModelMapperSingle;
import com.ycl.jxkg.utility.ExamUtil;
import com.ycl.jxkg.viewmodel.admin.exam.ExamPaperEditRequestVM;
import com.ycl.jxkg.viewmodel.admin.exam.ExamPaperPageRequestVM;
import com.ycl.jxkg.viewmodel.admin.exam.ExamPaperTitleItemVM;
import com.ycl.jxkg.viewmodel.admin.question.QuestionEditRequestVM;
import com.ycl.jxkg.viewmodel.student.dashboard.PaperFilter;
import com.ycl.jxkg.viewmodel.student.dashboard.PaperInfo;
import com.ycl.jxkg.viewmodel.student.exam.ExamPaperPageVM;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.ycl.jxkg.domain.ExamPaper;
import com.ycl.jxkg.domain.Question;
import com.ycl.jxkg.domain.User;
import org.modelmapper.ModelMapper;
import org.springframework.beans.factory.annotation.Autowired;
import com.ycl.jxkg.utils.DateTimeUtil;
import com.ycl.jxkg.utils.PageInfoHelper;
import lombok.RequiredArgsConstructor;
import lombok.SneakyThrows;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.CollectionUtils;
import org.springframework.web.multipart.MultipartFile;

import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;
import javax.servlet.http.HttpServletResponse;
import java.math.BigDecimal;
import java.net.URLEncoder;
import java.util.*;
import java.util.function.Consumer;
import java.util.stream.Collectors;

@Service
public class ExamPaperServiceImpl extends BaseServiceImpl<ExamPaper> implements ExamPaperService {
@RequiredArgsConstructor
public class ExamPaperServiceImpl extends ServiceImpl<ExamPaperMapper, ExamPaper> implements ExamPaperService {

    protected final static ModelMapper modelMapper = ModelMapperSingle.Instance();
    private final ExamPaperMapper examPaperMapper;
    private final QuestionMapper questionMapper;
    private final TextContentService textContentService;
    private final QuestionService questionService;
    private final SubjectService subjectService;
    private final WebContext webContext;

    @Autowired
    public ExamPaperServiceImpl(ExamPaperMapper examPaperMapper, QuestionMapper questionMapper, TextContentService textContentService, QuestionService questionService, SubjectService subjectService) {
        super(examPaperMapper);
        this.examPaperMapper = examPaperMapper;
        this.questionMapper = questionMapper;
        this.textContentService = textContentService;
        this.questionService = questionService;
        this.subjectService = subjectService;

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Result addPaper(ExamPaperForm form) {
        ExamPaper examPaper = ExamPaperForm.getEntityByForm(form, null);
        examPaper.setScore(new BigDecimal(form.getScore()));
        //随机试卷
        if (ExamPaperTypeEnum.Random.getCode().equals(form.getPaperType())) {
            //校验题目数量
            List<PaperQuestionSettingDTO> questionSetting = form.getQuestionSetting();
            for (PaperQuestionSettingDTO settingDTO : questionSetting) {
                Integer questionType = settingDTO.getQuestionType();
                for (PaperSettingItem item : settingDTO.getSettingList()) {
                    Integer num = item.getNum();
                    Integer difficult = item.getDifficult();
                    //需要配置的题目数量为0则跳过
                    if(num ==null || num ==0 )continue;
                    //前端默认数据为0，转换为null
                    if (0 == item.getDifficult()){
                        difficult= null;
                    }
                    RandomQuestionDTO randomQuestionDTO = new RandomQuestionDTO();
                    randomQuestionDTO.setQuestionType(questionType);
                    randomQuestionDTO.setSubjectId(item.getSubjectId());
                    randomQuestionDTO.setDifficult(difficult);
                    Integer numInData = questionMapper.selectByDifAndSub(randomQuestionDTO);
                    if(num > numInData)return Result.fail(SystemCode.InnerError.getCode(), QuestionTypeEnum.fromCode(questionType).getName()+"难度为"+item.getDifficult()+"的题目数量不足");
                }
            }
            examPaper.setContent(JSON.toJSONString(form.getQuestionSetting()));
            baseMapper.insert(examPaper);
            return Result.ok();
        } else if (ExamPaperTypeEnum.Fixed.getCode().equals(form.getPaperType())) {
            //固定试卷
            examPaper.setContent(JSON.toJSONString(form.getQuestionTitleList()));
            baseMapper.insert(examPaper);
            return Result.ok();
        } else {
            //随序试卷
            List<PaperQuestionSettingDTO> questionSetting = form.getQuestionSetting();
            //题目配置里配的试卷类型
            List<Integer> types = questionSetting.stream().map(PaperQuestionSettingDTO::getQuestionType).collect(Collectors.toList());
            if (CollectionUtils.isEmpty(types)) {
                return Result.fail(SystemCode.InnerError.getCode(), "试卷题目类型不能为空");
            }
            List<PaperFixQuestionDTO> questionTitleList = new ArrayList<>();
            for (PaperQuestionSettingDTO settingDTO : questionSetting) {
                List<PaperSettingItem> settingList = settingDTO.getSettingList();
                List<PaperQuestion> questionList = new ArrayList<>();
                for (PaperSettingItem item : settingList) {
                    Integer num = item.getNum();
                    Integer difficult = item.getDifficult();
                    //需要配置的题目数量为0则跳过
                    if(num ==null || num ==0 )continue;
                    //前端默认数据为0，转换为null
                    if (0 == difficult){
                        difficult = null;
                    }
                    List<Question> questions = questionMapper.getRandomQuestion(item.getSubjectId(), settingDTO.getQuestionType(), difficult, item.getNum());
                    if (CollectionUtils.isEmpty(questions) || item.getNum() > questions.size()) {
                        return Result.fail(SystemCode.InnerError.getCode(), QuestionTypeEnum.fromCode(settingDTO.getQuestionType()).getName()+"难度为："+item.getDifficult()+"的题目数量不足");
                    }
                    //转换数据
                    convert(questionList, item, questions);
                }
                    PaperFixQuestionDTO dto = new PaperFixQuestionDTO();
                    dto.setTitle(settingDTO.getTitle());
                    dto.setQuestionType(settingDTO.getQuestionType());
                    dto.setQuestionList(questionList);
                    questionTitleList.add(dto);
            }
            examPaper.setContent(JSON.toJSONString(questionTitleList));
            baseMapper.insert(examPaper);
            return Result.ok();
        }
    }
    //转换数据
    private void convert(List<PaperQuestion> questionList, PaperSettingItem item, List<Question> questions) {
        for (Question question : questions) {
            PaperQuestion paperQuestion = new PaperQuestion();
            BeanUtils.copyProperties(question,paperQuestion);
            paperQuestion.setScore(item.getScore());
            //转换
            QuestionObject questionObject = JSONObject.parseObject(question.getContent(), QuestionObject.class);
            if(questionObject != null){
                paperQuestion.setItems(questionObject.getQuestionItemObjects());
                paperQuestion.setAnalyze(questionObject.getAnalyze());
                paperQuestion.setTitle(questionObject.getTitleContent());
            }
            questionList.add(paperQuestion);
        }
    }


    @Override
    public PageInfo<ExamPaper> page(ExamPaperPageRequestVM requestVM) {
        return PageHelper.startPage(requestVM.getPageIndex(), requestVM.getPageSize(), "id desc").doSelectPageInfo(() ->
    public Result updateExamPaper(ExamPaperForm form) {
        //TODO：验证是否是试卷创建人
        ExamPaper examPaper = ExamPaperForm.getEntityByForm(form, null);
        examPaper.setScore(new BigDecimal(form.getScore()));
        //随机试卷
        if (ExamPaperTypeEnum.Random.getCode().equals(form.getPaperType())) {
            examPaper.setContent(JSON.toJSONString(form.getQuestionSetting()));
            baseMapper.updateById(examPaper);
            return Result.ok();
        } else if (ExamPaperTypeEnum.Fixed.getCode().equals(form.getPaperType())) {
            //固定试卷
            examPaper.setContent(JSON.toJSONString(form.getQuestionTitleList()));
            baseMapper.updateById(examPaper);
            return Result.ok();
        } else {
            //随序试卷
            examPaper.setContent(JSON.toJSONString(form.getQuestionTitleList()));
            baseMapper.updateById(examPaper);
            return Result.ok();
        }
    }

    @Override
    public PageInfo<ExamResponseVO> page(ExamPaperPageRequestVO requestVM) {
        requestVM.setCreateUser(webContext.getCurrentUser().getId());
        PageInfo<ExamPaper> page = PageHelper.startPage(requestVM.getPageIndex(), requestVM.getPageSize(), "id desc").doSelectPageInfo(() ->
                examPaperMapper.page(requestVM));
        PageInfo<ExamResponseVO> pageVO = PageInfoHelper.copyMap(page, e -> {
            ExamResponseVO vo = new ExamResponseVO();
            BeanUtils.copyProperties(e, vo);
            vo.setVisibility(VisibilityEnum.valueOf(vo.getVisibility()).getCode() + "");
            vo.setCreateTime(DateTimeUtil.dateFormat(e.getCreateTime()));
            return vo;
        });
        return pageVO;
    }

    @Override
    public PageInfo<ExamPaper> taskExamPage(ExamPaperPageRequestVM requestVM) {
        return PageHelper.startPage(requestVM.getPageIndex(), requestVM.getPageSize(), "id desc").doSelectPageInfo(() ->
                examPaperMapper.taskExamPage(requestVM));
    }

//    @Override
//    public PageInfo<ExamPaper> taskExamPage(ExamPaperPageRequestVO requestVM) {
//        return PageHelper.startPage(requestVM.getPageIndex(), requestVM.getPageSize(), "id desc").doSelectPageInfo(() ->
//                examPaperMapper.taskExamPage(requestVM));
//    }

    @Override
    public PageInfo<ExamPaper> studentPage(ExamPaperPageVM requestVM) {
    public PageInfo<ExamPaper> studentPage(ExamPaperPageVO requestVM) {
        return PageHelper.startPage(requestVM.getPageIndex(), requestVM.getPageSize(), "id desc").doSelectPageInfo(() ->
                examPaperMapper.studentPage(requestVM));
    }


    @Override
    @Transactional
    public ExamPaper savePaperFromVM(ExamPaperEditRequestVM examPaperEditRequestVM, User user) {
        ActionEnum actionEnum = (examPaperEditRequestVM.getId() == null) ? ActionEnum.ADD : ActionEnum.UPDATE;
        Date now = new Date();
        List<ExamPaperTitleItemVM> titleItemsVM = examPaperEditRequestVM.getTitleItems();
        List<ExamPaperTitleItemObject> frameTextContentList = frameTextContentFromVM(titleItemsVM);
        String frameTextContentStr = JsonUtil.toJsonStr(frameTextContentList);
//    @Override
//    @Transactional
//    public ExamPaper savePaperFromVM(ExamPaperEditRequestVO examPaperEditRequestVO, User user) {
//        ActionEnum actionEnum = (examPaperEditRequestVO.getId() == null) ? ActionEnum.ADD : ActionEnum.UPDATE;
//        Date now = new Date();
//        List<ExamPaperTitleItemVO> titleItemsVM = examPaperEditRequestVO.getTitleItems();
//        List<ExamPaperTitleItemObject> frameTextContentList = frameTextContentFromVM(titleItemsVM);
//        String frameTextContentStr = JsonUtil.toJsonStr(frameTextContentList);
//
//        ExamPaper examPaper = new ExamPaper();
//        BeanUtils.copyProperties(examPaperEditRequestVO, examPaper);
//        if (actionEnum == ActionEnum.ADD) {
//            TextContent frameTextContent = new TextContent();
//            frameTextContent.setContent(frameTextContentStr);
//            frameTextContent.setCreateTime(now);
//            textContentService.save(frameTextContent);
//            examPaper.setCreateTime(now);
//            examPaper.setCreateUser(user.getId());
//            examPaperFromVM(examPaperEditRequestVO, examPaper, titleItemsVM);
//            examPaperMapper.insert(examPaper);
//        } else {
//            examPaper = examPaperMapper.selectById(examPaperEditRequestVO.getId());
//          //TODO:
//            TextContent frameTextContent = textContentService.getById(examPaper.getFrameTextContentId());
//            frameTextContent.setContent(frameTextContentStr);
//            textContentService.updateById(frameTextContent);
//            examPaperFromVM(examPaperEditRequestVO, examPaper, titleItemsVM);
//            examPaperMapper.updateById(examPaper);
//        }
//        return examPaper;
//    }

        ExamPaper examPaper;
        if (actionEnum == ActionEnum.ADD) {
            examPaper = modelMapper.map(examPaperEditRequestVM, ExamPaper.class);
            TextContent frameTextContent = new TextContent(frameTextContentStr, now);
            textContentService.insertByFilter(frameTextContent);
            examPaper.setFrameTextContentId(frameTextContent.getId());
            examPaper.setCreateTime(now);
            examPaper.setCreateUser(user.getId());
            examPaper.setDeleted(false);
            examPaperFromVM(examPaperEditRequestVM, examPaper, titleItemsVM);
            examPaperMapper.insertSelective(examPaper);
    @Override
    public ExamPaperEditRequestVO examPaperToVM(Integer id) {
        ExamPaper examPaper = examPaperMapper.selectById(id);
        ExamPaperEditRequestVO vo = new ExamPaperEditRequestVO();
        BeanUtils.copyProperties(examPaper, vo);
        vo.setVisibility(VisibilityEnum.valueOf(vo.getVisibility()).getCode());
        //随机试卷
        if (ExamPaperTypeEnum.Random.getCode().equals(examPaper.getPaperType())) {
            vo.setQuestionSetting(JSONArray.parseArray(examPaper.getContent(), PaperQuestionSettingDTO.class));
        } else if (ExamPaperTypeEnum.Fixed.getCode().equals(examPaper.getPaperType())) {
            //固定试卷
            vo.setQuestionTitleList(JSONArray.parseArray(examPaper.getContent(), PaperFixQuestionDTO.class));
        } else {
            examPaper = examPaperMapper.selectByPrimaryKey(examPaperEditRequestVM.getId());
            TextContent frameTextContent = textContentService.selectById(examPaper.getFrameTextContentId());
            frameTextContent.setContent(frameTextContentStr);
            textContentService.updateByIdFilter(frameTextContent);
            modelMapper.map(examPaperEditRequestVM, examPaper);
            examPaperFromVM(examPaperEditRequestVM, examPaper, titleItemsVM);
            examPaperMapper.updateByPrimaryKeySelective(examPaper);
            //随序试卷
            vo.setQuestionTitleList(JSONArray.parseArray(examPaper.getContent(), PaperFixQuestionDTO.class));
        }
        return examPaper;
    }

    @Override
    public ExamPaperEditRequestVM examPaperToVM(Integer id) {
        ExamPaper examPaper = examPaperMapper.selectByPrimaryKey(id);
        ExamPaperEditRequestVM vm = modelMapper.map(examPaper, ExamPaperEditRequestVM.class);
        vm.setLevel(examPaper.getGradeLevel());
        TextContent frameTextContent = textContentService.selectById(examPaper.getFrameTextContentId());
        List<ExamPaperTitleItemObject> examPaperTitleItemObjects = JsonUtil.toJsonListObject(frameTextContent.getContent(), ExamPaperTitleItemObject.class);
        List<Integer> questionIds = examPaperTitleItemObjects.stream()
                .flatMap(t -> t.getQuestionItems().stream()
                        .map(q -> q.getId()))
                .collect(Collectors.toList());
        List<Question> questions = questionMapper.selectByIds(questionIds);
        List<ExamPaperTitleItemVM> examPaperTitleItemVMS = examPaperTitleItemObjects.stream().map(t -> {
            ExamPaperTitleItemVM tTitleVM = modelMapper.map(t, ExamPaperTitleItemVM.class);
            List<QuestionEditRequestVM> questionItemsVM = t.getQuestionItems().stream().map(i -> {
                Question question = questions.stream().filter(q -> q.getId().equals(i.getId())).findFirst().get();
                QuestionEditRequestVM questionEditRequestVM = questionService.getQuestionEditRequestVM(question);
                questionEditRequestVM.setItemOrder(i.getItemOrder());
                return questionEditRequestVM;
            }).collect(Collectors.toList());
            tTitleVM.setQuestionItems(questionItemsVM);
            return tTitleVM;
        }).collect(Collectors.toList());
        vm.setTitleItems(examPaperTitleItemVMS);
        vm.setScore(ExamUtil.scoreToVM(examPaper.getScore()));
        if (ExamPaperTypeEnum.TimeLimit == ExamPaperTypeEnum.fromCode(examPaper.getPaperType())) {
            List<String> limitDateTime = Arrays.asList(DateTimeUtil.dateFormat(examPaper.getLimitStartTime()), DateTimeUtil.dateFormat(examPaper.getLimitEndTime()));
            vm.setLimitDateTime(limitDateTime);
        }
        return vm;
        return vo;
    }

    @Override
@@ -166,37 +286,291 @@
        }).collect(Collectors.toList());
    }

    private void examPaperFromVM(ExamPaperEditRequestVM examPaperEditRequestVM, ExamPaper examPaper, List<ExamPaperTitleItemVM> titleItemsVM) {
        Integer gradeLevel = subjectService.levelBySubjectId(examPaperEditRequestVM.getSubjectId());
        Integer questionCount = titleItemsVM.stream()
                .mapToInt(t -> t.getQuestionItems().size()).sum();
        Integer score = titleItemsVM.stream().
                flatMapToInt(t -> t.getQuestionItems().stream()
                        .mapToInt(q -> ExamUtil.scoreFromVM(q.getScore()))
                ).sum();
        examPaper.setQuestionCount(questionCount);
        examPaper.setScore(score);
        examPaper.setGradeLevel(gradeLevel);
        List<String> dateTimes = examPaperEditRequestVM.getLimitDateTime();
        if (ExamPaperTypeEnum.TimeLimit == ExamPaperTypeEnum.fromCode(examPaper.getPaperType())) {
            examPaper.setLimitStartTime(DateTimeUtil.parse(dateTimes.get(0), DateTimeUtil.STANDER_FORMAT));
            examPaper.setLimitEndTime(DateTimeUtil.parse(dateTimes.get(1), DateTimeUtil.STANDER_FORMAT));
        }

    private void examPaperFromVM(ExamPaperEditRequestVO examPaperEditRequestVO, ExamPaper examPaper, List<ExamPaperTitleItemVO> titleItemsVM) {
        //TODO:
//        Integer gradeLevel = subjectService.levelBySubjectId(examPaperEditRequestVO.getSubjectId());
//        Integer questionCount = titleItemsVM.stream()
//                .mapToInt(t -> t.getQuestionItems().size()).sum();
//        Integer score = titleItemsVM.stream().
//                flatMapToInt(t -> t.getQuestionItems().stream()
//                        .mapToInt(q -> ExamUtil.scoreFromVM(q.getScore()))
//                ).sum();
//        examPaper.setQuestionCount(questionCount);
//        examPaper.setScore(score);
//        examPaper.setGradeLevel(gradeLevel);
//        List<String> dateTimes = examPaperEditRequestVO.getLimitDateTime();
//        if (ExamPaperTypeEnum.Random == ExamPaperTypeEnum.fromCode(examPaper.getPaperType())) {
//            examPaper.setLimitStartTime(DateTimeUtil.parse(dateTimes.get(0), DateTimeUtil.STANDER_FORMAT));
//            examPaper.setLimitEndTime(DateTimeUtil.parse(dateTimes.get(1), DateTimeUtil.STANDER_FORMAT));
//        }
    }

    private List<ExamPaperTitleItemObject> frameTextContentFromVM(List<ExamPaperTitleItemVM> titleItems) {
        AtomicInteger index = new AtomicInteger(1);
        return titleItems.stream().map(t -> {
            ExamPaperTitleItemObject titleItem = modelMapper.map(t, ExamPaperTitleItemObject.class);
            List<ExamPaperQuestionItemObject> questionItems = t.getQuestionItems().stream()
                    .map(q -> {
                        ExamPaperQuestionItemObject examPaperQuestionItemObject = modelMapper.map(q, ExamPaperQuestionItemObject.class);
                        examPaperQuestionItemObject.setItemOrder(index.getAndIncrement());
                        return examPaperQuestionItemObject;
                    })
                    .collect(Collectors.toList());
            titleItem.setQuestionItems(questionItems);
            return titleItem;
        }).collect(Collectors.toList());
//    private List<ExamPaperTitleItemObject> frameTextContentFromVM(List<ExamPaperTitleItemVO> titleItems) {
//        AtomicInteger index = new AtomicInteger(1);
//        return titleItems.stream().map(t -> {
//            ExamPaperTitleItemObject titleItem = new ExamPaperTitleItemObject();
//            BeanUtils.copyProperties(t, titleItem);
//            List<ExamPaperQuestionItemObject> questionItems = t.getQuestionItems().stream()
//                    .map(q -> {
//                        ExamPaperQuestionItemObject examPaperQuestionItemObject = new ExamPaperQuestionItemObject();
//                        BeanUtils.copyProperties(q, examPaperQuestionItemObject);
//                        examPaperQuestionItemObject.setItemOrder(index.getAndIncrement());
//                        return examPaperQuestionItemObject;
//                    })
//                    .collect(Collectors.toList());
//            titleItem.setQuestionItems(questionItems);
//            return titleItem;
//        }).collect(Collectors.toList());
//    }

    @Override
    public List<ExamPaper> myExamPaper(Integer paperType) {
        Integer userId = webContext.getCurrentUser().getId();
        List<ExamPaper> list = new LambdaQueryChainWrapper<>(baseMapper)
                .select(ExamPaper::getId, ExamPaper::getName, ExamPaper::getVisibility)
                .eq(ExamPaper::getCreateUser, userId)
                .eq(Objects.nonNull(paperType), ExamPaper::getPaperType, paperType)
                .or()
                .eq(ExamPaper::getVisibility, VisibilityEnum.Public.getName())
                .eq(Objects.nonNull(paperType), ExamPaper::getPaperType, paperType)
                .list();
        list.stream().forEach(item -> {
            if (VisibilityEnum.Public.getName().equals(item.getVisibility())) {
                item.setName(item.getName() + " (公开)");
            }
        });
        return list;
    }

    @Override
    @SneakyThrows
    public void importTemplate(HttpServletResponse response) {
        String fileName = URLEncoder.encode("试卷导入模板", "UTF-8").replaceAll("\\+", "%20");
        response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName + ".xlsx");

        // 构建模板样例数据
        List<ExamPaperImportVO> data = new ArrayList<>(8);
        ExamPaperImportVO questionImportVO = new ExamPaperImportVO();
        questionImportVO.setLabel("标题1");
        questionImportVO.setSubject("语文");
        questionImportVO.setQuestionType("单选题");
        questionImportVO.setDifficult(2);
        questionImportVO.setCorrect("A");
        questionImportVO.setScore(2);
        questionImportVO.setAnalyze("A是对的");
        questionImportVO.setTitle("这是一道测试题目，使用该模板请删除或替换这道题");
        questionImportVO.setOptionName("A");
        questionImportVO.setOptionValue("选我");
        data.add(questionImportVO);

        ExamPaperImportVO questionImport1 = new ExamPaperImportVO();
        questionImport1.setOptionName("B");
        questionImport1.setOptionValue("选B");
        data.add(questionImport1);

        ExamPaperImportVO questionImport2 = new ExamPaperImportVO();
        questionImport2.setOptionName("C");
        questionImport2.setOptionValue("选C");
        data.add(questionImport2);

        ExamPaperImportVO questionImport3 = new ExamPaperImportVO();
        questionImport3.setOptionName("D");
        questionImport3.setOptionValue("选D");
        data.add(questionImport3);

        // 查出所有的课目（excel下拉数据）
        List<Subject> subjects = subjectService.list();
        List<String> subjectNameList = subjects.stream().map(Subject::getName).collect(Collectors.toList());
        EasyExcel.write(response.getOutputStream(), ExamPaperImportVO.class)
                .sheet("模板")
                .registerWriteHandler(new PaperSelectExcel(subjectNameList))
                .registerWriteHandler(new FixedMergeCellStrategy(2, 4, Arrays.asList(2, 3, 6, 7, 8, 9)))
                .registerWriteHandler(new FixedMergeCellStrategy(2, 20, Arrays.asList(0, 1)))
                .doWrite(data);
    }

    @Override
    @SneakyThrows
    public void export(QuestionExportVO query, HttpServletResponse response) {
        // 查询导出数据
        List<ExamPaperImportVO> exportData = questionService.export(query);
        // 构建数据
        List<ExamPaperImportVO> exportList = new ArrayList<>(exportData.size() * 4);
        // 行合并规则
        List<RowItem> mergeRowList = new ArrayList<>(exportData.size());
        int j = 2;
        for (ExamPaperImportVO data : exportData) {
            QuestionObject questionContent = JSON.parseObject(data.getQuestionContent(), QuestionObject.class);

            RowItem rowItem = new RowItem();
            rowItem.setStart(j);
            int end = j + questionContent.getQuestionItemObjects().size() - 1;
            rowItem.setEnd(end);
            mergeRowList.add(rowItem);
            j = end + 1;
            int i = 0;
            for (QuestionItemObject option : questionContent.getQuestionItemObjects()) {
                if (i == 0) {
                    ExamPaperImportVO master = new ExamPaperImportVO();
                    BeanUtils.copyProperties(data, master);
                    if (org.springframework.util.StringUtils.hasText(data.getQuestionType())) {
                        master.setQuestionType(QuestionTypeEnum.fromCode(Integer.valueOf(data.getQuestionType())).getName());
                    }
                    master.setOptionName(option.getPrefix());
                    master.setOptionValue(option.getContent());
                    master.setTitle(questionContent.getTitleContent());
                    master.setAnalyze(questionContent.getAnalyze());
                    master.setCorrect(data.getCorrect().replaceAll(",", "、"));
                    BigDecimal score = BigDecimal.valueOf(master.getScore());
                    master.setScore(score.divide(BigDecimal.TEN).intValue());
                    exportList.add(master);
                } else {
                    ExamPaperImportVO optionItem = new ExamPaperImportVO();
                    optionItem.setOptionName(option.getPrefix());
                    optionItem.setOptionValue(option.getContent());
                    exportList.add(optionItem);
                }
                i++;
            }
        }
        response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
        response.setCharacterEncoding("utf-8");
        // 这里URLEncoder.encode可以防止中文乱码 当然和easyexcel没有关系
        String fileName = URLEncoder.encode("题目导出数据", "UTF-8").replaceAll("\\+", "%20");
        response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName + ".xlsx");

        // 查出所有的课目（excel下拉数据）
        List<Subject> subjects = subjectService.list();
        List<String> subjectNameList = subjects.stream().map(Subject::getName).collect(Collectors.toList());
        EasyExcel.write(response.getOutputStream(), ExamPaperImportVO.class)
                .sheet("题目导出数据")
                .registerWriteHandler(new SelectExcel(subjectNameList))
                .registerWriteHandler(new DynamicMergeCellStrategy(mergeRowList, Arrays.asList(0, 1, 2, 5, 6, 7, 8)))
                .doWrite(exportList);
    }

    @Override
    @Transactional
    @SneakyThrows
    public Result importPaper(MultipartFile file, ExamPaperForm form) {
        List<Subject> subjects = subjectService.list();
        List<Integer> questionNum = new ArrayList<>();
        List<Integer> totalScore = new ArrayList<>();
        // 拿到试卷
        ExamPaper examPaper = ExamPaperForm.getEntityByForm(form, null);
        // 题目集合用于批量保存
        ArrayList<Question> questions = new ArrayList<>();
        // 一张试卷多个标题
        ArrayList<PaperFixQuestionDTO> list = new ArrayList<>();

        Consumer<List<ExamPaperImportVO>> consumer = (data) -> {
            // 循环每一行
            for (int i = 0; i < data.size(); i++) {
                // 读取的题目
                ExamPaperImportVO excelQuestion = data.get(i);
                String questionType = excelQuestion.getQuestionType();
                String label = excelQuestion.getLabel();
                // 判断是否标题
                if (excelQuestion.master()) {
                    // 一个标题多个题目
                    ArrayList<PaperQuestion> paperQuestions = new ArrayList<>();
                    // 循环题目
                    while (Boolean.TRUE) {
                        // 更新读取的题目
                        excelQuestion = data.get(i);
                        // 判断是否题目
                        if (excelQuestion.intact()) {
                            Question question = new Question();
                            totalScore.add(excelQuestion.getScore());
                            // 该题的选项
                            List<QuestionItemObject> options = new ArrayList<>(8);
                            // 选项内容
                            QuestionItemObject option = new QuestionItemObject();
                            option.setPrefix(excelQuestion.getOptionName());
                            option.setContent(excelQuestion.getOptionValue());
                            options.add(option);
                            // 循环选项
                            while (Boolean.TRUE) {
                                // 判断是否是最后一条
                                if (i + 1 == data.size()) {
                                    break;
                                }
                                ExamPaperImportVO nextQuestion = data.get(1 + i);
                                if (nextQuestion.intact()) {
                                    break;
                                }
                                QuestionItemObject nextOption = new QuestionItemObject();
                                nextOption.setPrefix(nextQuestion.getOptionName());
                                nextOption.setContent(nextQuestion.getOptionValue());
                                options.add(nextOption);
                                i++;
                            }
                            // 保存题目内容
                            QuestionObject questionObject = new QuestionObject();
                            questionObject.setQuestionItemObjects(options);
                            questionObject.setAnalyze(excelQuestion.getAnalyze());
                            questionObject.setTitleContent(excelQuestion.getTitle());
                            questionObject.setCorrect(excelQuestion.getCorrect());
                            question.setTitle(excelQuestion.getTitle());
                            question.setContent(JSON.toJSONString(questionObject));
                            question.setQuestionType(QuestionTypeEnum.get(excelQuestion.getQuestionType()));
                            // 答案(多选需要用、分割保存字符串到数据库)
                            String[] corrects = excelQuestion.getCorrect().split("、");
                            if (corrects.length > 1) {
                                question.setCorrect(String.join(",", corrects));
                            } else {
                                question.setCorrect(excelQuestion.getCorrect());
                            }
                            // 难度
                            question.setDifficult(excelQuestion.getDifficult());
                            // 创建人
                            question.setCreateUser(2);
                            question.setStatus(StatusEnum.ENABLE);
                            question.setCreateTime(new Date());
                            question.setDeleted(0);
                            question.setQuestionType(QuestionTypeEnum.get(questionType));
                            // 根据科目名称获取id
                            ExamPaperImportVO finalExcelQuestion = excelQuestion;
                            question.setSubjectId(subjects.stream().filter(subject -> subject.getName().equals(finalExcelQuestion.getSubject())).findFirst().get().getId());
                            questions.add(question);

                            PaperQuestion paperQuestion = new PaperQuestion();
                            BeanUtils.copyProperties(question, paperQuestion);
                            paperQuestion.setItems(options);
                            paperQuestion.setAnalyze(excelQuestion.getAnalyze());
                            paperQuestion.setScore(BigDecimal.valueOf(excelQuestion.getScore()));
                            paperQuestions.add(paperQuestion);
                        }
                        // 下一条数据是标题
                        if (i + 1 == data.size() || data.get(i + 1).master()) {
                            break;
                        }
                        i++;
                    }
                    // 组装试卷内容
                    PaperFixQuestionDTO paperFixQuestionDTO = new PaperFixQuestionDTO();
                    paperFixQuestionDTO.setTitle(label);
                    paperFixQuestionDTO.setQuestionType(QuestionTypeEnum.get(questionType));
                    paperFixQuestionDTO.setQuestionList(paperQuestions);
                    questionNum.add(paperQuestions.size());
                    list.add(paperFixQuestionDTO);
                }
            }
        };
        EasyExcel.read(file.getInputStream(), ExamPaperImportVO.class, new CurrencyDataListener(consumer)).sheet("模板").doRead();
        // 保存题目
        questionService.saveBatch(questions);
        // 保存试卷
        examPaper.setContent(JSON.toJSONString(list));
        examPaper.setVisibility(VisibilityEnum.fromCode(form.getVisibility()).getName());
        examPaper.setCreateUser(2);
        examPaper.setCreateTime(new Date());
        Integer score = totalScore.stream().reduce(Integer::sum).orElse(0);
        Integer num = questionNum.stream().reduce(Integer::sum).orElse(0);
        examPaper.setScore(new BigDecimal(score));
        examPaper.setNum(num);
        examPaperMapper.insert(examPaper);
        return Result.ok();
    }
}