package com.nju.edu.eval.web.controller;

import com.nju.edu.eval.aspect.auth.Authorized;
import com.nju.edu.eval.data.entity.Exam;
import com.nju.edu.eval.data.entity.User;
import com.nju.edu.eval.model.vo.exam.CreateExamVO;
import com.nju.edu.eval.model.vo.exam.QuestionScoreMapVO;
import com.nju.edu.eval.publicdatas.enums.UserRole;
import com.nju.edu.eval.service.ExamService;
import com.nju.edu.eval.model.vo.exam.ExamVO;
import com.nju.edu.eval.service.QuestionService;
import com.nju.edu.eval.web.Response;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.web.bind.annotation.*;
import springfox.documentation.annotations.ApiIgnore;

import java.util.Date;
import java.util.Optional;

/**
 * @author mars
 */
@RestController
@RequestMapping(path = "/api/exam")
@Api(tags = {"考试"})
public class ExamController {
    private final ExamService examService;

    @Autowired
    public ExamController(ExamService examService) {
        this.examService = examService;
    }

    @ApiOperation("创建考试")
    @PostMapping("")
    @Authorized(roles = {UserRole.TEACHER, UserRole.HR, UserRole.ASSISTANT})
    public Response createExam(@ApiIgnore User user, @RequestBody CreateExamVO examVO) {
        return Response.buildSuccess(examService.createExam(examVO, user.getId()));
    }

    @ApiOperation("为创建的考试通过样卷来设置题目")
    @PostMapping("/question/sample/{examId}/")
    @Authorized(roles = {UserRole.TEACHER, UserRole.HR, UserRole.ASSISTANT})
    public Response setExamQuestionsBySampleExamPaper(@PathVariable int examId,
                                                      @RequestParam(value = "sampleExamPaperId") int sampleExamPaperId) {
        examService.setExamQuestionsBySampleExamPaper(examId, sampleExamPaperId);
        return Response.buildSuccess(null);
    }


    @ApiOperation("获得所有考试（默认按时间降序)")
    @GetMapping("/list")
    @Authorized
    public Response getExamList(@ApiIgnore User user,
                                @RequestParam(value = "pageSize") int pageSize,
                                @RequestParam(value = "pageNum") int pageNum) {
        return Response.buildSuccess(examService.getExamList(user.getId(), pageSize, pageNum));
    }

    @ApiOperation("获得开始时间在某个时间段内的考试")
    @GetMapping("/list/range")
    public Response getExamListOfTimeRange(@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss") @RequestParam Date startTime,
                                           @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss") @RequestParam Date endTime) {
        return Response.buildSuccess(examService.getExamListOfTimeRange(startTime, endTime));
    }

    @ApiOperation("根据考试id获得对应考试相关信息")
    @GetMapping("/{examId}")
    public Response getExamById(@PathVariable Integer examId) {
        return Response.buildSuccess(examService.getExamById(examId));
    }

    @ApiOperation("根据考试id获得对应考试的题目")
    @GetMapping("/{examId}/questions")
    public Response getExamQuestionAndScoreById(@PathVariable Integer examId) {
        return Response.buildSuccess(examService.getExamQuestionAndScoreById(examId));
    }

    @ApiOperation("根据考试id获得对应考试的代码题目Id")
    @GetMapping("/{examId}/questions/code")
    public Response getCodeQuestionIdsByExamId(@PathVariable Integer examId) {
        return Response.buildSuccess(examService.getCodeQuestionIdsByExamId(examId));
    }

    @ApiOperation("为考试更新题目及对应分值")
    @PutMapping("/{examId}/questions/")
//    @Authorized(roles = {UserRole.ADMIN, UserRole.HR, UserRole.TEACHER, UserRole.ASSISTANT})
    public Response updateQuestionsOfExam(@PathVariable Integer examId,
                                      @RequestBody QuestionScoreMapVO questionScoreMapVO) {
        examService.updateQuestionsOfExam(examId, questionScoreMapVO);
        return Response.buildSuccess(null);
    }

    @ApiOperation("延长考试时间")
    @PutMapping("/{examId}/time")
    @Authorized(roles = {UserRole.ADMIN, UserRole.HR, UserRole.TEACHER, UserRole.ASSISTANT})
    public Response extendExamTime(@PathVariable Integer examId,
                                   @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss") @RequestParam Date endTime)  {
        Optional<Exam> examEntityOptional = examService.extendExamTime(examId, endTime);
        return Response.buildSuccess(null);
        // TODO 提醒参加该考试的同学 email？
    }

    @ApiOperation("获得学生参加的考试")
    @ApiParam()
    @GetMapping("/student/exams")
    @Authorized()
    public Response getExamsByCurrentStudent(@ApiIgnore User user,
                                             @RequestParam(value = "pageSize", required = false) int pageSize,
                                             @RequestParam(value = "pageNum", required = false) int pageNum,
                                             @ApiParam(name = "state", value = "0 所有， 1 未开始，2 进行中，3 已结束")
                                                 @RequestParam(value = "state") int state) {
        return Response.buildSuccess(examService.getExamsByCurrentStudent(user.getId(), pageSize, pageNum, state));
    }

    @ApiOperation("获得老师/HR创建的考试")
    @GetMapping("/teacher/exams")
    @Authorized(roles = {UserRole.TEACHER, UserRole.HR, UserRole.ASSISTANT})
    public Response getExamsByCurrentTeacherOrHR(@ApiIgnore User user,
                                                 @RequestParam(value = "pageSize", required = false) int pageSize,
                                                 @RequestParam(value = "pageNum", required = false) int pageNum,
                                                 @ApiParam(name = "state", value = "0 所有， 1 未开始，2 进行中，3 已结束")
                                                     @RequestParam(value = "state") int state) {
        return Response.buildSuccess(examService.getExamsCreatedByCurrentTeacherOrHR(user.getId(), pageSize, pageNum, state));
    }

    @ApiOperation("通过邀请码加入考试")
    @PutMapping("/invite/code")
    @Authorized(roles = {UserRole.STUDENT})
    public Response takeExam(@ApiIgnore User user,
                             @RequestParam(value = "inviteCode", required = false) String inviteCode,
                             @RequestParam(value = "examId", required = true) Integer examId
                             ) {
        return Response.buildSuccess(examService.takeExam(user.getId(), examId, inviteCode));
    }

    @ApiOperation("修改考试名称")
    @PutMapping("/update/name")
    @Authorized(roles = {UserRole.TEACHER, UserRole.ASSISTANT})
    public Response updateExamName(@ApiIgnore User user,
                                   @RequestParam(value = "examId", required = true) Integer examId,
                                   @RequestParam(value = "name", required = true) String name
                                   ) {
        //todo 暂时的接口，后面可扩展为更新考试信息
        return Response.buildSuccess(examService.updateExamName(user.getId(), examId, name));
    }

    @ApiOperation("隐藏考试")
    @PutMapping("/update/hidden")
    @Authorized(roles = {UserRole.TEACHER, UserRole.ASSISTANT})
    public Response setIsHidden(@ApiIgnore User user,
                                @RequestParam(value = "examId", required = true) Integer examId,
                                @RequestParam(value = "hidden", required = true) boolean hidden
                                ) {
        return Response.buildSuccess(examService.setIsHidden(user.getId(), examId, hidden?1:0));
    }

    @ApiOperation("获取考试推荐")
    @GetMapping("/recommend")
    public Response getRecommendExam() {
        return Response.buildSuccess(examService.getRecommendExam());
    }
}