<?php

namespace app\mobile\service;

use support\spark\model\train\examination\Question;
use support\spark\model\train\examination\QuestionLog;
use support\spark\model\train\examination\Exam;
use support\spark\model\train\examination\Config;

class QuestionService
{

    /**
     * 获取试题
     * @return array
     */
    public function setQusetions()
    {
        $examModel     = new Config();
        $questionModel = new Question();
        $examConfig    = $examModel->first()->toArray();
        $questionB     = json_decode($examConfig['proportion'],true);
        # 试题列表
        $question_num = 0;
        $score        = 0;
        $questionArr  = [];
        foreach ($questionB as $k=>$v) {
            $question_num += $v['question_num'];
            $score        += $v['question_num'] * $v['score'];
            $questionList = $questionModel->where(['question_type'=>$v['question_type'],'status'=>1])->select('id','question_name','question_type','answer','desctext','q_options')->get()->toArray();
            $count = count($questionList);
            if ($v['question_num'] < $count) {
                # 随机去掉多出的题数
                $d_num = $count - $v['question_num'];
                for ($i=0; $i<$d_num; $i++)
                {
                    $delKey = rand(0,$count-$i);
                    unset($questionList[$delKey]);
                    # 重新排序
                    array_values($questionList);
                }
            }
            foreach ($questionList as $k1 => $v1) {
                $v1['score']     = $v['score'];
                $v1['q_options'] = json_decode($v1['q_options']);
                $questionArr[]   = $v1;
            }
        }
        $exam['exam_time']    = $examConfig['exam_time'];  # 考试时长
        $exam['question_num'] = $question_num;  # 总题数
        $exam['score']        = $score;  # 总分数
        return dataReturn(0, 'success', compact('questionArr','exam'));
    }

    /**
     * 提交试题
     * @return array
     */
    public function submitQuestion($param)
    {
        $code  = exam_code(); # 提交编号
        $examModel                  = new Exam(); # 试卷
        $examData['user_id']        = $param['user_id'];         # 答题用户id
        $examData['score']          = $param['score'];           # 试卷分数
        $examData['total_score']    = $param['total_score'];     # 用户得分
        $examData['exam_time']      = $param['exam_time'];       # 试卷考试时长
        $examData['user_exam_time'] = $param['user_exam_time'];  # 用户答卷时长
        $examData['exam_code']      = $code;                     # 试卷编码
        $examData['add_time']       = date('Y-m-d H:i:s');       # 试卷编码
        $res = $examModel->insert($examData);

        $questionlogModel = new QuestionLog();# 试卷试题
        if ($res) {
            $questionArr  =  $param['questionArr'];
            foreach ($questionArr as $k=>$v) {
                $inserData = [
                    'exam_code'      => $code,
                    'question_id'    => $v['id'],
                    'question_name'  => $v['question_name'],
                    'question_type'  => $v['question_type'],
                    'user_answer'    => $v['user_answer'],
                    'answer'         => $v['answer'],
                    'score'          => $v['score'],
                    'user_score'     => $v['user_score'],
                    'q_options'      => empty($v['q_options']) ? '' :json_encode($v['q_options'])
                ];
                $questionlogModel->insert($inserData);
            }
        }
        $reruen['code']  = $code;
        return dataReturn(0, 'success', compact('reruen'));
    }

}