package com.gkhy.exam.system.service.impl;
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import cn.hutool.core.util.ObjectUtil;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.gkhy.exam.common.api.CommonPage;
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import com.gkhy.exam.common.domain.entity.SysUser;
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import com.gkhy.exam.common.enums.QuestionTypeEnum;
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import com.gkhy.exam.common.enums.UserTypeEnum;
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import com.gkhy.exam.common.exception.ApiException;
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import com.gkhy.exam.common.utils.PageUtils;
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import com.gkhy.exam.common.utils.SecurityUtils;
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import com.gkhy.exam.system.domain.ExExamPaper;
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import com.gkhy.exam.system.domain.ExPaperStudent;
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import com.gkhy.exam.system.domain.ExStudent;
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import com.gkhy.exam.system.mapper.ExExamPaperMapper;
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import com.gkhy.exam.system.mapper.ExPaperStudentMapper;
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import com.gkhy.exam.system.mapper.ExStudentAnswerMapper;
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import com.gkhy.exam.system.mapper.ExStudentMapper;
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import com.gkhy.exam.system.service.ExPaperStudentService;
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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.Collections;
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import java.util.List;
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import java.util.Objects;
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/**
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* <p>
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* 学员与考试题目关系表 服务实现类
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* </p>
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*
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* @author kzy
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* @since 2024-06-06 13:53:17
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*/
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@Service
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public class ExPaperStudentServiceImpl extends ServiceImpl<ExPaperStudentMapper, ExPaperStudent> implements ExPaperStudentService {
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@Autowired
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private ExExamPaperMapper examPaperMapper;
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@Autowired
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private ExStudentAnswerMapper studentAnswerMapper;
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@Autowired
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private ExStudentMapper studentMapper;
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@Override
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public CommonPage selectPaperStudentListForStudent(ExPaperStudent paperStudent) {
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SysUser user= SecurityUtils.getLoginUser().getUser();
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if(!Objects.equals(user.getUserType(), UserTypeEnum.STUDENT.getCode())){
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throw new ApiException("非学员用户，不能查看");
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}
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paperStudent.setStudentId(user.getId());
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PageUtils.startPage();
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List<ExPaperStudent> paperList=baseMapper.selectPaperStudentList(paperStudent);
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return CommonPage.restPage(paperList);
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}
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@Override
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public ExPaperStudent selectPaperStudentById(Long paperStudentId) {
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return baseMapper.selectPaperStudentById(paperStudentId);
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}
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@Override
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public ExPaperStudent selectPaperStudentById(ExPaperStudent paperStudent) {
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return baseMapper.selectByPaperStudentId(paperStudent);
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}
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@Override
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public int addPaperStudent(ExPaperStudent paperStudent) {
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checkStudentUnique(Collections.singletonList(paperStudent));
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paperStudent.setCreateId(SecurityUtils.getUserId());
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int row=baseMapper.insert(paperStudent);
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if(row<1){
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throw new ApiException("分配学员失败");
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}
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return row;
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}
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@Override
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public int batchAddPaperStudent(List<ExPaperStudent> paperStudents) {
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checkStudentUnique(paperStudents);
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int row=baseMapper.batchInsert(paperStudents);
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if(row<1){
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throw new ApiException("批量分配学员失败");
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}
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return row;
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}
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@Override
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public void checkStudentUnique(List<ExPaperStudent> paperStudents){
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for(ExPaperStudent paperStudent:paperStudents) {
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Integer existCount = baseMapper.selectCountByPaperStudentId(paperStudent.getPaperId(), paperStudent.getStudentId());
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if (existCount > 0) {
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ExStudent student = studentMapper.selectById(paperStudent.getStudentId());
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throw new ApiException(String.format("待分配学员<%s>已存在", student.getName()));
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}
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}
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}
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@Override
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public CommonPage selectPaperStudentList(ExPaperStudent paperStudent) {
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if(paperStudent.getPaperId()==null){
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throw new ApiException("试卷id不能为空");
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}
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PageUtils.startPage();
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List<ExPaperStudent> paperStudentList=baseMapper.selectPaperStudentList(paperStudent);
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return CommonPage.restPage(paperStudentList);
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}
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@Override
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public int deletePaperStudent(Long paperStudentId) {
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ExPaperStudent paperStudent=baseMapper.selectPaperStudentById(paperStudentId);
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if(ObjectUtil.isNull(paperStudent)){
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throw new ApiException(String.format("该试卷下不存在该学员<>",paperStudent.getStudentName()));
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}
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int studentAnswerCount=studentAnswerMapper.countByPaperId(paperStudent.getPaperId(),paperStudent.getStudentId());
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if(studentAnswerCount>0){
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throw new ApiException(String.format("学员<%s>已进行答题，不能删除",paperStudent.getStudentName()));
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}
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//删除学员与试卷关系
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return baseMapper.deleteById(paperStudentId);
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}
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@Override
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@Transactional(rollbackFor = RuntimeException.class)
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public void batchDeletePaperStudent(List<Long> paperStudentIds) {
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for(Long paperStudentId:paperStudentIds){
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deletePaperStudent(paperStudentId);
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}
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}
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@Override
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public void endExam(ExPaperStudent paperStudent) {
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Long endTime=System.currentTimeMillis();
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//异步计算
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//计算考试成绩
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ExExamPaper paper=examPaperMapper.selectById(paperStudent.getPaperId());
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int singleCount=studentAnswerMapper.selectPassCount(paperStudent.getPaperId(),paperStudent.getStudentId(), QuestionTypeEnum.SINGLE.getCode());
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int multiCount=studentAnswerMapper.selectPassCount(paperStudent.getPaperId(),paperStudent.getStudentId(), QuestionTypeEnum.MULTI.getCode());
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int judgeCount=studentAnswerMapper.selectPassCount(paperStudent.getPaperId(),paperStudent.getStudentId(), QuestionTypeEnum.JUDGE.getCode());
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int score=singleCount*paper.getSingleScore()+multiCount*paper.getMultiScore()+judgeCount*paper.getJudgeScore();
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ExPaperStudent exPaperStudent = new ExPaperStudent()
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.setPaperId(paperStudent.getPaperId())
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.setStudentId(paperStudent.getStudentId())
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.setCompleted(1)
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.setEndTime(endTime)
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.setScore(score);
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if(score>=paper.getPassScore()){
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exPaperStudent.setPassed(1);
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}else{
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exPaperStudent.setPassed(0);
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}
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int row=baseMapper.updateById(exPaperStudent);
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if(row<1){
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throw new ApiException("提交考试失败");
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}
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}
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}
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