package com.ycl.jxkg.controller.student;

import com.ycl.jxkg.base.BaseApiController;
import com.ycl.jxkg.base.Result;
import com.ycl.jxkg.domain.*;
import com.ycl.jxkg.domain.entity.ExamPaperAnswer;
import com.ycl.jxkg.domain.entity.Subject;
import com.ycl.jxkg.domain.entity.User;
import com.ycl.jxkg.domain.entity.UserEventLog;
import com.ycl.jxkg.domain.enums.ExamPaperAnswerStatusEnum;
import com.ycl.jxkg.event.CalculateExamPaperAnswerCompleteEvent;
import com.ycl.jxkg.event.UserEvent;
import com.ycl.jxkg.service.ExamPaperAnswerService;
import com.ycl.jxkg.service.ExamPaperService;
import com.ycl.jxkg.service.SubjectService;
import com.ycl.jxkg.utils.DateTimeUtil;
import com.ycl.jxkg.utils.ExamUtil;
import com.ycl.jxkg.utils.PageInfoHelper;
import com.ycl.jxkg.domain.vo.admin.exam.ExamPaperEditRequestVO;
import com.ycl.jxkg.domain.vo.student.exam.ExamPaperReadVO;
import com.ycl.jxkg.domain.vo.student.exam.ExamPaperSubmitVO;
import com.ycl.jxkg.domain.vo.student.exampaper.ExamPaperAnswerPageResponseVO;
import com.ycl.jxkg.domain.vo.student.exampaper.ExamPaperAnswerPageVO;
import com.github.pagehelper.PageInfo;
import lombok.RequiredArgsConstructor;
import org.springframework.beans.BeanUtils;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.web.bind.annotation.*;

import javax.validation.Valid;
import java.util.Date;

@RequiredArgsConstructor
@RestController("StudentExamPaperAnswerController")
@RequestMapping(value = "/api/student/exampaper/answer")
public class ExamPaperAnswerController extends BaseApiController {

    private final ExamPaperAnswerService examPaperAnswerService;
    private final ExamPaperService examPaperService;
    private final SubjectService subjectService;
    private final ApplicationEventPublisher eventPublisher;


    @RequestMapping(value = "/pageList", method = RequestMethod.POST)
    public Result<PageInfo<ExamPaperAnswerPageResponseVO>> pageList(@RequestBody @Valid ExamPaperAnswerPageVO model) {
        model.setCreateUser(getCurrentUser().getId());
        PageInfo<ExamPaperAnswer> pageInfo = examPaperAnswerService.studentPage(model);
        PageInfo<ExamPaperAnswerPageResponseVO> page = PageInfoHelper.copyMap(pageInfo, e -> {
            ExamPaperAnswerPageResponseVO vo = new ExamPaperAnswerPageResponseVO();
            BeanUtils.copyProperties(e, vo);
            Subject subject = subjectService.getById(vo.getSubjectId());
            vo.setDoTime(ExamUtil.secondToVM(e.getDoTime()));
            vo.setSystemScore(ExamUtil.scoreToVM(e.getSystemScore()));
            vo.setUserScore(ExamUtil.scoreToVM(e.getUserScore()));
            vo.setPaperScore(ExamUtil.scoreToVM(e.getPaperScore()));
            vo.setSubjectName(subject.getName());
            vo.setCreateTime(DateTimeUtil.dateFormat(e.getCreateTime()));
            return vo;
        });
        return Result.ok(page);
    }


    @RequestMapping(value = "/answerSubmit", method = RequestMethod.POST)
    public Result answerSubmit(@RequestBody @Valid ExamPaperSubmitVO examPaperSubmitVO) {
        User user = getCurrentUser();
        ExamPaperAnswerInfo examPaperAnswerInfo = examPaperAnswerService.calculateExamPaperAnswer(examPaperSubmitVO, user);
        if (null == examPaperAnswerInfo) {
            return Result.fail(2, "试卷不能重复做");
        }
        ExamPaperAnswer examPaperAnswer = examPaperAnswerInfo.getExamPaperAnswer();
        Integer userScore = examPaperAnswer.getUserScore();
        String scoreVm = ExamUtil.scoreToVM(userScore);
        UserEventLog userEventLog = new UserEventLog(user.getId(), user.getUserName(), user.getRealName(), new Date());
        String content = user.getUserName() + " 提交试卷：" + examPaperAnswerInfo.getExamPaper().getName()
                + " 得分：" + scoreVm
                + " 耗时：" + ExamUtil.secondToVM(examPaperAnswer.getDoTime());
        userEventLog.setContent(content);
        eventPublisher.publishEvent(new CalculateExamPaperAnswerCompleteEvent(examPaperAnswerInfo));
        eventPublisher.publishEvent(new UserEvent(userEventLog));
        return Result.ok(scoreVm);
    }


    @RequestMapping(value = "/edit", method = RequestMethod.POST)
    public Result edit(@RequestBody @Valid ExamPaperSubmitVO examPaperSubmitVO) {
        boolean notJudge = examPaperSubmitVO.getAnswerItems().stream().anyMatch(i -> i.getDoRight() == null && i.getScore() == null);
        if (notJudge) {
            return Result.fail(2, "有未批改题目");
        }

        ExamPaperAnswer examPaperAnswer = examPaperAnswerService.getById(examPaperSubmitVO.getId());
        ExamPaperAnswerStatusEnum examPaperAnswerStatusEnum = ExamPaperAnswerStatusEnum.fromCode(examPaperAnswer.getStatus());
        if (examPaperAnswerStatusEnum == ExamPaperAnswerStatusEnum.Complete) {
            return Result.fail(3, "试卷已完成");
        }
        String score = examPaperAnswerService.judge(examPaperSubmitVO);
        User user = getCurrentUser();
        UserEventLog userEventLog = new UserEventLog(user.getId(), user.getUserName(), user.getRealName(), new Date());
        String content = user.getUserName() + " 批改试卷：" + examPaperAnswer.getPaperName() + " 得分：" + score;
        userEventLog.setContent(content);
        eventPublisher.publishEvent(new UserEvent(userEventLog));
        return Result.ok(score);
    }

    @RequestMapping(value = "/read/{id}", method = RequestMethod.POST)
    public Result<ExamPaperReadVO> read(@PathVariable Integer id) {
        ExamPaperAnswer examPaperAnswer = examPaperAnswerService.getById(id);
        ExamPaperReadVO vm = new ExamPaperReadVO();
        ExamPaperEditRequestVO paper = examPaperService.examPaperToVM(examPaperAnswer.getExamPaperId());
        ExamPaperSubmitVO answer = examPaperAnswerService.examPaperAnswerToVM(examPaperAnswer.getId());
        vm.setPaper(paper);
        vm.setAnswer(answer);
        return Result.ok(vm);
    }


}