package com.ycl.jxkg.service.impl;
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
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import com.ycl.jxkg.base.Result;
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import com.ycl.jxkg.context.WebContext;
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import com.ycl.jxkg.domain.entity.Exam;
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import com.ycl.jxkg.domain.entity.ExamPaperScore;
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import com.ycl.jxkg.domain.entity.Meet;
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import com.ycl.jxkg.domain.entity.StudyRecord;
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import com.ycl.jxkg.domain.vo.ExamVO;
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import com.ycl.jxkg.domain.vo.MeetVO;
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import com.ycl.jxkg.domain.vo.student.HomeVO;
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import com.ycl.jxkg.mapper.*;
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import com.ycl.jxkg.service.ExamPaperScoreService;
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import com.ycl.jxkg.service.HomeService;
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import lombok.RequiredArgsConstructor;
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import org.checkerframework.checker.units.qual.A;
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import org.springframework.beans.BeanUtils;
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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.util.CollectionUtils;
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import java.math.BigDecimal;
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import java.math.RoundingMode;
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.time.LocalTime;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.List;
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/**
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* 首页 服务实现类
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*
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* @author flq
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* @since 2024-06-17
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*/
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@Service
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@RequiredArgsConstructor
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public class HomeServiceImpl implements HomeService {
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@Autowired
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private WebContext webContext;
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@Autowired
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private MeetMapper meetMapper;
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@Autowired
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private ExamMapper examMapper;
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@Autowired
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private StudyRecordMapper studyRecordMapper;
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@Autowired
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private ExamPaperScoreMapper scoreMapper;
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@Autowired
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private ClassesUserMapper classesUserMapper;
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@Override
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public Result home() {
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HomeVO vo = new HomeVO();
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Integer userId = webContext.getCurrentUser().getId();
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vo.setUserId(userId);
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//所在的班级
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List<Integer> classes = classesUserMapper.getClassesByUserId(userId);
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//学习记录
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StudyRecord studyRecord = studyRecordMapper.getByStudentId(userId);
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if (studyRecord != null) {
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Long studyTime = studyRecord.getStudyTime();
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BigDecimal studyTimeVo = new BigDecimal(studyTime).divide(new BigDecimal(3600), 1, RoundingMode.HALF_UP);
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vo.setLastTime(studyRecord.getLastTime());
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vo.setStudyTime(studyTimeVo);
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vo.setMeetCount(studyRecord.getMeetCount());
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}else {
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vo.setStudyTime(BigDecimal.ZERO);
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vo.setMeetCount(0);
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}
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//平均分
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QueryWrapper<ExamPaperScore> scoreWapper = new QueryWrapper<ExamPaperScore>();
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scoreWapper.eq("user_id", userId);
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List<ExamPaperScore> examPaperScores = scoreMapper.selectList(scoreWapper);
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if (CollectionUtils.isEmpty(examPaperScores)) {
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vo.setScoreAverage("0");
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} else {
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BigDecimal totalScore = examPaperScores.stream()
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.map(ExamPaperScore::getScore)
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.reduce(BigDecimal.ZERO, BigDecimal::add);
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int size = examPaperScores.size();
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vo.setScoreAverage(totalScore.divide(new BigDecimal(size), 1, RoundingMode.HALF_UP) + "");
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}
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List<MeetVO> meetList = new ArrayList<>();
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List<ExamVO> examList = new ArrayList<>();
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if (!CollectionUtils.isEmpty(classes)) {
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LocalDate nowDate = LocalDate.now();
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// 计算七天后的日期
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LocalDate sevenDayLaterDate = nowDate.plusDays(7);
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LocalDateTime now = LocalDateTime.of(nowDate, LocalTime.MIN);
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LocalDateTime sevenDayLater = LocalDateTime.of(sevenDayLaterDate, LocalTime.MIN);
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//我的课程
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QueryWrapper<Meet> meetQueryWrapper = new QueryWrapper<>();
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meetQueryWrapper.in("classes_id",classes);
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meetQueryWrapper.between("start_time", now,sevenDayLater);
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List<Meet> meets = meetMapper.selectList(meetQueryWrapper);
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for (Meet meet : meets) {
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MeetVO meetVO = new MeetVO();
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BeanUtils.copyProperties(meet,meetVO);
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meetList.add(meetVO);
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}
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//我的考试
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QueryWrapper<Exam> examQueryWrapper = new QueryWrapper<>();
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examQueryWrapper.in("classes_id",classes);
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examQueryWrapper.between("start_time", now,sevenDayLater);
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List<Exam> exams = examMapper.selectList(examQueryWrapper);
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for (Exam exam : exams) {
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ExamVO examVO = new ExamVO();
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BeanUtils.copyProperties(exam,examVO);
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examList.add(examVO);
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}
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}
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//我的课程
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vo.setMeetList(meetList);
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//我的考试
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vo.setExamList(examList);
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return Result.ok(vo);
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}
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}
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