package org.springblade.modules.exam.service.impl;

import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import lombok.AllArgsConstructor;
import org.springblade.modules.exam.entity.ExamExaminationSubject;
import org.springblade.modules.exam.entity.ExamPaper;
import org.springblade.modules.exam.entity.ExamScore;
import org.springblade.modules.exam.mapper.ExamScoreMapper;
import org.springblade.modules.exam.service.ExamPaperService;
import org.springblade.modules.exam.service.ExamScoreService;
import org.springblade.modules.exam.vo.ExamPaperSubjectVO;
import org.springblade.modules.exam.vo.ExamResultVO;
import org.springblade.modules.exam.vo.ExamScoreVO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.ArrayList;
import java.util.List;

/**
 * 考试成绩服务实现类
 * @author zhongrj
 */
@Service
@AllArgsConstructor
public class ExamScoreServiceImpl extends ServiceImpl<ExamScoreMapper, ExamScore> implements ExamScoreService {

	private final ExamPaperService examPaperService;

	/**
	 * 自定义分页数据
	 * @param page 分页条件
	 * @param examScore 考试成绩对象
	 * @return
	 */
	@Override
	public IPage<ExamScoreVO> selectExamScorePage(IPage<ExamScoreVO> page, ExamScoreVO examScore) {
		return page.setRecords(baseMapper.selectExamScorePage(page, examScore));
	}

	/**
	 * 详情
	 * @param examScore 考试成绩信息对象
	 */
	@Override
	public ExamScoreVO selectExamScoreInfo(ExamScore examScore) {
		return baseMapper.selectExamScoreInfo(examScore);
	}

	/**
	 * 保存考试成绩
	 * @param examScore 考试成绩信息对象
	 * @return
	 */
	@Override
	@Transactional(rollbackFor = Exception.class)
	public Boolean saveExamScore(ExamScoreVO examScore) {
		//取出考试结果
		if (examScore.getExamResultVOS().size()>0){
			List<ExamResultVO> examResultVOS = examScore.getExamResultVOS();
			//获取试卷的内容（题号，答案）
			ExamPaper examPaper = new ExamPaper();
			examPaper.setId(examScore.getPapersId());
			List<ExamExaminationSubject> examExaminationSubjects
				= examPaperService.queryPagerSubject(examPaper).getExamExaminationSubjects();
			//比对考试结果
			//声明理论得分
			int theoryGrade = 0;
			for (int i = 0; i < examResultVOS.size(); i++) {
				if (examResultVOS.get(i).getValue().equals(examExaminationSubjects.get(i).getExamSubjectChoices().getAnswer())){
					theoryGrade += examResultVOS.get(i).getGrade();
				}
			}
			//设置理论得分
			examScore.setTheoryGrade(theoryGrade);
			//计算总成绩
			examScore.setAllGrade(theoryGrade + examScore.getLearnGrade());
			//保存成绩数据
			int i = baseMapper.insert(examScore);
			if (i>0){
				//返回结果
				return true;
			}
		}
		//返回结果
		return false;
	}
}