package com.mindskip.xzs.service.impl;
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import com.mindskip.xzs.configuration.spring.exception.QuestionException;
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import com.mindskip.xzs.domain.*;
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import com.mindskip.xzs.domain.TextContent;
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import com.mindskip.xzs.domain.enums.ExamPaperTypeEnum;
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import com.mindskip.xzs.domain.enums.QuestionTypeEnum;
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import com.mindskip.xzs.domain.exam.ExamPaperQuestionItemObject;
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import com.mindskip.xzs.domain.exam.ExamPaperTitleItemObject;
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import com.mindskip.xzs.domain.other.KeyValue;
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import com.mindskip.xzs.repository.ExamPaperMapper;
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import com.mindskip.xzs.repository.QuestionMapper;
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import com.mindskip.xzs.service.*;
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import com.mindskip.xzs.service.enums.ActionEnum;
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import com.mindskip.xzs.utility.DateTimeUtil;
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import com.mindskip.xzs.utility.JsonUtil;
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import com.mindskip.xzs.utility.ModelMapperSingle;
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import com.mindskip.xzs.utility.ExamUtil;
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import com.mindskip.xzs.viewmodel.admin.exam.ExamPaperEditRequestVM;
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import com.mindskip.xzs.viewmodel.admin.exam.ExamPaperPageRequestVM;
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import com.mindskip.xzs.viewmodel.admin.exam.ExamPaperTitleItemVM;
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import com.mindskip.xzs.viewmodel.admin.question.QuestionEditRequestVM;
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import com.mindskip.xzs.viewmodel.student.dashboard.PaperFilter;
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import com.mindskip.xzs.viewmodel.student.dashboard.PaperInfo;
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import com.mindskip.xzs.viewmodel.student.exam.ExamPaperPageVM;
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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.domain.ExamPaper;
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import com.mindskip.xzs.domain.Question;
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import com.mindskip.xzs.domain.User;
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import org.modelmapper.ModelMapper;
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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 org.springframework.transaction.annotation.Transactional;
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import java.util.*;
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import java.util.concurrent.atomic.AtomicInteger;
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import java.util.stream.Collectors;
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@Service
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public class ExamPaperServiceImpl extends BaseServiceImpl<ExamPaper> implements ExamPaperService {
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protected final static ModelMapper modelMapper = ModelMapperSingle.Instance();
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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 ExamPaperDepartmentService examPaperDepartmentService;
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private final ExamPaperSubjectService examPaperSubjectService;
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private final QuestionSubjectService questionSubjectService;
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@Autowired
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public ExamPaperServiceImpl(ExamPaperMapper examPaperMapper, QuestionMapper questionMapper, TextContentService textContentService, QuestionService questionService, SubjectService subjectService, ExamPaperDepartmentService examPaperDepartmentService, ExamPaperSubjectService examPaperSubjectService, QuestionSubjectService questionSubjectService) {
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super(examPaperMapper);
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this.examPaperMapper = examPaperMapper;
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this.questionMapper = questionMapper;
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this.textContentService = textContentService;
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this.questionService = questionService;
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this.subjectService = subjectService;
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this.examPaperDepartmentService = examPaperDepartmentService;
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this.examPaperSubjectService = examPaperSubjectService;
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this.questionSubjectService = questionSubjectService;
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}
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@Override
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public PageInfo<ExamPaper> page(ExamPaperPageRequestVM requestVM) {
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return PageHelper.startPage(requestVM.getPageIndex(), requestVM.getPageSize(), "id desc").doSelectPageInfo(() ->
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examPaperMapper.page(requestVM));
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}
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@Override
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public PageInfo<ExamPaper> taskExamPage(ExamPaperPageRequestVM 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(ExamPaperPageVM 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(ExamPaperEditRequestVM examPaperEditRequestVM, User user) throws QuestionException {
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ActionEnum actionEnum = (examPaperEditRequestVM.getId() == null) ? ActionEnum.ADD : ActionEnum.UPDATE;
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Date now = new Date();
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List<ExamPaperTitleItemObject> frameTextContentList = new ArrayList<>();
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List<ExamPaperTitleItemVM> titleItemsVM = new ArrayList<>();
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//随机试卷
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if (examPaperEditRequestVM.getSubjectSource().size() != 0) {
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// Map<Integer, Integer> questionList = questionService.getAll().stream().collect(Collectors.toMap(Question::getId, Question::getScore));
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randomQuestion(examPaperEditRequestVM, frameTextContentList, titleItemsVM);
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}
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if (titleItemsVM.size() == 0) {
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titleItemsVM = examPaperEditRequestVM.getTitleItems();
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}
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if (frameTextContentList.size() == 0) {
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frameTextContentList = frameTextContentFromVM(titleItemsVM);
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}
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String frameTextContentStr = JsonUtil.toJsonStr(frameTextContentList);
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ExamPaper examPaper;
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if (actionEnum == ActionEnum.ADD) {
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examPaper = modelMapper.map(examPaperEditRequestVM, ExamPaper.class);
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TextContent frameTextContent = new TextContent(frameTextContentStr, now);
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textContentService.insertByFilter(frameTextContent);
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examPaper.setFrameTextContentId(frameTextContent.getId());
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examPaper.setCreateTime(now);
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examPaper.setCreateUser(user.getId());
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examPaper.setDeleted(false);
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examPaperFromVM(examPaperEditRequestVM, examPaper, titleItemsVM);
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examPaperMapper.insertSelective(examPaper);
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} else {
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examPaper = examPaperMapper.selectByPrimaryKey(examPaperEditRequestVM.getId());
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TextContent frameTextContent = textContentService.selectById(examPaper.getFrameTextContentId());
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frameTextContent.setContent(frameTextContentStr);
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textContentService.updateByIdFilter(frameTextContent);
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modelMapper.map(examPaperEditRequestVM, examPaper);
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examPaperFromVM(examPaperEditRequestVM, examPaper, titleItemsVM);
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examPaperMapper.updateByPrimaryKeySelective(examPaper);
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//批量修改
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examPaperDepartmentService.removeByExamPaperId(examPaper.getId());
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examPaperSubjectService.removeByExamPaperId(examPaper.getId());
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}
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addExamPaperDepartment(examPaperEditRequestVM, examPaper);
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addExamPaperSubject(examPaperEditRequestVM, examPaper);
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return examPaper;
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}
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@Override
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public ExamPaperEditRequestVM examPaperToVM(Integer id) {
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ExamPaper examPaper = examPaperMapper.selectByPrimaryKey(id);
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ExamPaperEditRequestVM vm = modelMapper.map(examPaper, ExamPaperEditRequestVM.class);
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vm.setLevel(examPaper.getGradeLevel());
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TextContent frameTextContent = textContentService.selectById(examPaper.getFrameTextContentId());
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List<ExamPaperTitleItemObject> examPaperTitleItemObjects = JsonUtil.toJsonListObject(frameTextContent.getContent(), ExamPaperTitleItemObject.class);
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List<Integer> questionIds = examPaperTitleItemObjects.stream()
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.flatMap(t -> t.getQuestionItems().stream()
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.map(q -> q.getId()))
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.collect(Collectors.toList());
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List<Question> questions = questionMapper.selectByIds(questionIds);
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Integer order = 0;
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Set<Integer> generatedNumbers = new HashSet<>();
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Random random = new Random();
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List<ExamPaperTitleItemVM> examPaperTitleItemVMS = examPaperTitleItemObjects.stream().map(t -> {
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ExamPaperTitleItemVM tTitleVM = modelMapper.map(t, ExamPaperTitleItemVM.class);
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List<QuestionEditRequestVM> questionItemsVM = t.getQuestionItems().stream().map(i -> {
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Question question = questions.stream().filter(q -> q.getId().equals(i.getId())).findFirst().get();
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QuestionEditRequestVM questionEditRequestVM = questionService.getQuestionEditRequestVM(question);
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questionEditRequestVM.setItemOrder(getRandomNumber(t.getQuestionItems().size() - 1, generatedNumbers, random));
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return questionEditRequestVM;
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}).sorted(Comparator.comparing(QuestionEditRequestVM::getItemOrder))
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.collect(Collectors.toList());
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tTitleVM.setQuestionItems(questionItemsVM);
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return tTitleVM;
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}).collect(Collectors.toList());
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vm.setTitleItems(examPaperTitleItemVMS);
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vm.setScore(ExamUtil.scoreToVM(examPaper.getScore()));
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if (ExamPaperTypeEnum.TimeLimit == ExamPaperTypeEnum.fromCode(examPaper.getPaperType())) {
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List<String> limitDateTime = Arrays.asList(DateTimeUtil.dateFormat(examPaper.getLimitStartTime()), DateTimeUtil.dateFormat(examPaper.getLimitEndTime()));
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vm.setLimitDateTime(limitDateTime);
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}
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//查询部门和课目
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vm.setSubjectId(examPaperSubjectService.getByExamPaperId(examPaper.getId())
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.stream().map(ExamPaperSubject::getSubjectId).toArray(Integer[]::new));
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vm.setDepartmentIds(examPaperDepartmentService.getByExamPaperId(examPaper.getId())
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.stream().map(ExamPaperDepartment::getDepartmentId).toArray(Integer[]::new));
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return vm;
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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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@Override
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public Integer removeByIds(Integer[] ids) {
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return examPaperMapper.removeByIds(ids);
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}
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@Override
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public List<ExamPaper> gets(Integer[] ids) {
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return examPaperMapper.gets(ids);
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}
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private void examPaperFromVM(ExamPaperEditRequestVM examPaperEditRequestVM, ExamPaper examPaper, List<ExamPaperTitleItemVM> titleItemsVM) {
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// Integer gradeLevel = subjectService.levelBySubjectId(examPaperEditRequestVM.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(null);
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List<String> dateTimes = examPaperEditRequestVM.getLimitDateTime();
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if (ExamPaperTypeEnum.TimeLimit == 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<ExamPaperTitleItemVM> 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 = modelMapper.map(t, ExamPaperTitleItemObject.class);
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List<ExamPaperQuestionItemObject> questionItems = t.getQuestionItems().stream()
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.map(q -> {
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ExamPaperQuestionItemObject examPaperQuestionItemObject = modelMapper.map(q, ExamPaperQuestionItemObject.class);
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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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private void addExamPaperDepartment(ExamPaperEditRequestVM examPaperEditRequestVM, ExamPaper examPaper) {
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if(examPaperEditRequestVM.getDepartmentIds().length==0){
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return;
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}
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List<ExamPaperDepartment> list = Arrays.asList(examPaperEditRequestVM.getDepartmentIds()).stream().map(e -> {
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ExamPaperDepartment examPaperDepartment = new ExamPaperDepartment();
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examPaperDepartment.setExamPaperId(examPaper.getId());
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examPaperDepartment.setDepartmentId(e);
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examPaperDepartment.setDeleted("0");
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return examPaperDepartment;
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}).collect(Collectors.toList());
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examPaperDepartmentService.saves(list);
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}
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private void addExamPaperSubject(ExamPaperEditRequestVM examPaperEditRequestVM, ExamPaper examPaper) {
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List<ExamPaperSubject> subjectList = Arrays.asList(examPaperEditRequestVM.getSubjectId()).stream().map(e -> {
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ExamPaperSubject examPaperSubject = new ExamPaperSubject();
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examPaperSubject.setSubjectId(e);
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examPaperSubject.setExamPaperId(examPaper.getId());
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examPaperSubject.setDeleted("0");
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return examPaperSubject;
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}).collect(Collectors.toList());
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examPaperSubjectService.saves(subjectList);
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}
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/**
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* @param result
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* @param scoresMap
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* @param quantity
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* @param totalScore
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*/
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public static void selectRandomScores(Map<Integer, Integer> result, Map<Integer, Integer> scoresMap, int quantity, int totalScore) throws QuestionException {
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// Map<String, Integer> selectedScoresMap = new HashMap<>();
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if (quantity <= 0 || totalScore <= 0 || scoresMap.isEmpty()) {
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return; // 返回空Map
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}
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List<Integer> keys = new ArrayList<>(scoresMap.keySet());
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List<Integer> values = scoresMap.values().stream().map(e -> e = e / 10).collect(Collectors.toList());
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Random random = new Random();
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int remainingQuantity = quantity;
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int remainingScore = totalScore;
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for (int i = 0; i < quantity - 1; i++) {
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if (i >= scoresMap.size()) {
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throw new QuestionException();
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}
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int index = random.nextInt(values.size());
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int score = values.get(index);
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if (score <= remainingScore) {
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result.put(keys.get(index), score);
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remainingQuantity--;
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remainingScore -= score;
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values.remove(index);
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keys.remove(index);
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}
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}
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if (!values.isEmpty()) {
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int index = random.nextInt(values.size());
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int score = values.get(index);
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result.put(keys.get(index), score); // 最后一个分数为剩余的分数
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}
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}
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/**
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* 随机试卷
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*
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* @param examPaperEditRequestVM 传参
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* @param frameTextContentList
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* @param titleItemsVM title
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*/
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private void randomQuestion(ExamPaperEditRequestVM examPaperEditRequestVM, List<ExamPaperTitleItemObject> frameTextContentList, List<ExamPaperTitleItemVM> titleItemsVM) throws QuestionException {
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Map<Integer, Integer> subjectSource = examPaperEditRequestVM.getSubjectSource();
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//总数量
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Integer sum = subjectSource.values().stream().mapToInt(Integer::intValue).sum();
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Integer count = 0;
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Integer mark = 0;
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ExamPaperTitleItemObject examPaperTitleItemObject = new ExamPaperTitleItemObject();
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examPaperTitleItemObject.setName(examPaperEditRequestVM.getTitleItems().get(0).getName());
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ExamPaperTitleItemVM examPaperTitleItemVM = new ExamPaperTitleItemVM();
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//titleItemsVM
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examPaperTitleItemVM.setName(examPaperEditRequestVM.getTitleItems().get(0).getName());
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List<ExamPaperQuestionItemObject> examPaperQuestionItemObjectList = new ArrayList<>();
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List<QuestionEditRequestVM> questionItems = new ArrayList<>();
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Integer order = 0;
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for (Integer key : subjectSource.keySet()) { // key：数量
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//该标签对应的分数 多选：3 判断：3 单选：4
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Integer source = 80 * subjectSource.get(key) / sum - mark;
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// 多选和判断数量
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Integer multipleNumber = (subjectSource.get(key) + count) * 3 / 10;
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//多选和判断分数
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Integer multipleSource = source * 3 / 10;
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List<Integer> questions = questionSubjectService.getSubject(key)
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.stream().map(QuestionSubject::getQuestionId).collect(Collectors.toList());
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List<Question> list = questionService.selectByIds(questions);
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Map<Integer, Integer> multiple = new HashMap<>();
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//多选
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Map<Integer, Integer> multipleMap = list.stream()
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.filter(e -> e.getQuestionType().equals(QuestionTypeEnum.MultipleChoice.getCode()))
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.collect(Collectors.toMap(Question::getId, Question::getScore));
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selectRandomScores(multiple, multipleMap, multipleNumber < multipleMap.size() ? multipleNumber : multipleMap.size(), multipleSource);
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//判断
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Map<Integer, Integer> judgmentMap = list.stream()
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.filter(e -> e.getQuestionType().equals(QuestionTypeEnum.TrueFalse.getCode()))
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.collect(Collectors.toMap(Question::getId, Question::getScore));
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selectRandomScores(multiple, judgmentMap, multipleNumber < judgmentMap.size() ? multipleNumber : judgmentMap.size(), multipleSource);
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//单选数量
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Integer radioNumber = subjectSource.get(key) - multiple.size();
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//单选分数
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Integer radioSource = source - multiple.values().stream().mapToInt(Integer::intValue).sum();
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//单选
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Map<Integer, Integer> radioMap = list.stream()
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.filter(e -> e.getQuestionType().equals(QuestionTypeEnum.SingleChoice.getCode()))
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.collect(Collectors.toMap(Question::getId, Question::getScore));
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selectRandomScores(multiple, radioMap, radioNumber < radioMap.size() ? radioNumber : radioMap.size(), radioSource);
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// titleItemsVM.add(examPaperTitleItemVM);
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for (Integer k : multiple.keySet()) {
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ExamPaperQuestionItemObject examPaperQuestionItemObject = new ExamPaperQuestionItemObject();
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examPaperQuestionItemObject.setId(k);
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examPaperQuestionItemObject.setItemOrder(order++);
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examPaperQuestionItemObjectList.add(examPaperQuestionItemObject);
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//titleItemsVM
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QuestionEditRequestVM questionEditRequestVM = new QuestionEditRequestVM();
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questionEditRequestVM.setScore(multiple.get(k).toString());
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questionItems.add(questionEditRequestVM);
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}
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examPaperTitleItemObject.setQuestionItems(examPaperQuestionItemObjectList);
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//titleItemsVM
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examPaperTitleItemVM.setQuestionItems(questionItems);
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//数量 匹配
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count = multiple.size() != subjectSource.get(key) ? subjectSource.get(key) - multiple.size() : 0;
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//分数匹配
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mark = source != multiple.values().stream().mapToInt(Integer::intValue).sum() ? multiple.values().stream().mapToInt(Integer::intValue).sum() - source : 0;
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}
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frameTextContentList.add(examPaperTitleItemObject);
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titleItemsVM.add(examPaperTitleItemVM);
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if (count != 0 || mark != 0) {
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throw new QuestionException();
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}
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}
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public Integer getRandomNumber(Integer a, Set<Integer> generatedNumbers, Random random) {
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if (a <= 0) {
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throw new IllegalArgumentException("a必须为正整数");
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}
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int range = a + 1;
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if (generatedNumbers.size() >= range) {
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generatedNumbers.clear(); // 清空已生成的数字集合
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}
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int randomNumber;
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do {
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randomNumber = random.nextInt(range);
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} while (generatedNumbers.contains(randomNumber));
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generatedNumbers.add(randomNumber);
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return randomNumber;
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}
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}
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