<?php

namespace app\api\controller;

use app\common\controller\Api;
use think\Db;
/**
 * 答题
 */
class Question extends Api
{

    protected $noNeedLogin = [];
    protected $noNeedRight = ['*'];


    //获取10个题
    public function get_question(){

        //上次绑定选手的时间不是今天
        if($this->auth->bind_player_date != strtotime(date('Y-m-d'))){
            $this->error('先绑定单位再答题',null,2);
        }

        //获取10个随机题目
        $count = config('site.exam_times_user_eday');
        $lists = Db::name('exam_question')
        ->field('id,kind,title,options_json')
        ->where('is_material_child', 0)// 材料题子题不显示
        ->where('status', 'NORMAL')// 正常
        ->where('deletetime', NULL)
        ->orderRaw('rand()')->limit($count)->select();

        foreach($lists as $key => $val){
            $val['options_json'] = $this->getOptionsJsonAttr($val['options_json']);

            $lists[$key] = $val;
        }

        $this->success(1,$lists);
    }

    private function getOptionsJsonAttr($value)
    {
        if ($value = json_decode($value, true)) {
            $data = [];
            foreach ($value as $key => $row) {
                $arr['key']         = $key;
                $arr['value']       = $row;
                array_push($data, $arr);
            }
            return $data;
        }
        return [];
    }

    /**
     * 交卷
     */
    public function submit()
    {
        //上次绑定选手的时间不是今天
        if($this->auth->bind_player_date != strtotime(date('Y-m-d'))){
            $this->error('先绑定单位再答题',null,2);
        }

        //检查今日答题次数
        $exam_times_user_eday = config('site.exam_times_user_eday');
        $count = Db::name('user_question_log')->where('user_id',$this->auth->id)->where('createdate',strtotime(date('Y-m-d')))->count();
        if($count >= $exam_times_user_eday){
            $this->error('今日答题次数用完了,明天再来吧');
        }

        $question_id  = input('question_id');
        $answer       = input('answer');

        if (!$question_id || !$answer) {
            $this->error('提交数据有误');
        }

        $is_right = $this->paperExam($question_id,$answer);

        Db::startTrans();

        //答题日志
        $log = [
            'user_id'     => $this->auth->id,
            'question_id' => $question_id,
            'is_right'    => $is_right ? 1 : 0,
            'player_id'   => $this->auth->bind_player_id,
            'createtime'  => time(),
            'createdate'  => strtotime(date('Y-m-d')),
        ];
        $log_id = Db::name('user_question_log')->insertGetId($log);
        if(!$log_id){
            Db::rollback();
            $this->error('答题失败');
        }


        if($is_right){
            $msg = '回答正确';

            //给选手加分
            

        }else{
            $msg = '回答错误';
        }

        Db::commit();

        $this->success($msg);
    }

    /**
     * 试题
     * @param $question_id
     * @param $answer
     * @return bool
     */
    private function paperExam($question_id,$answer)
    {
        $is_right = false;

        $question = Db::name('exam_question')->where('id', $question_id)->find();
        if(empty($question)){
            return false;
        }

        switch ($question['kind']) {
            case 'JUDGE':   // 判断题
            case 'SINGLE':  // 单选题
            case 'MULTI':   // 多选题

                // 答题正确
                if (strtoupper($answer) == $question['answer']) {
                    $is_right = true;
                } else {
                    $is_right = false;
                }
                break;

            case 'SHORT':   // 简答题
                // 答案得分配置
                $answer_config = is_string($question['answer']) ? json_decode($question['answer'], true) : $question['answer'];
                $user_answers  = $answer;

                foreach ($answer_config['config'] as $answer_item) {

                    // 匹配答案关键词
                    if (strpos($user_answers, $answer_item['answer']) !== false) {
                        $is_right = true;
                    }

                }

                break;
        }

        return $is_right;
    }

}