<?php

namespace app\admin\model\app\exam;

use think\Model;


class WarehouseImport extends Model
{

    protected $excelSheetNoTypes = ['single','multiple','judge','indefinite','fillblank','essay'];


    /**
     * 获取每一行的数据
     * @param $data 题目数据
     * @param $type 题目类型下标
     * @param $groupId 分组ID
     * @return false|mixed|null
     */
    public function getRowData($data,$typeIndex,$groupId=0){
        $rowData = false;


        $type = $this->excelSheetNoTypes[$typeIndex];


        if(empty($data[0])){
            return $rowData;
        }

        switch ($type){
            case 'judge':
                if(count($data) != 3){
                    return false;
                }
                if(!in_array($data[1],["错误","正确","错","对"])){
                    return false;
                }

                $rowData = $this->parseJudge($data);
                break;
            case 'single':
                if(count($data) < 13){
                    return false;
                }
                //判断是不是字母
                if(!$data[11] || strlen($data[11]) != 1 || !ctype_alpha($data[11])){
                    return false;
                }
                $rowData = $this->parseSingle($data);
                break;
            case 'multiple':
                if(count($data) < 13){
                    return false;
                }

                if(!$data[11] || strlen($data[11]) > 10 || !ctype_alpha($data[11])){
                    return false;
                }
                $rowData = $this->parseMultiple($data);

                break;
            case 'indefinite':
                if(count($data) < 13){
                    return false;
                }

                if(!$data[11] || strlen($data[11]) > 10 || !ctype_alpha($data[11])){
                    return false;
                }
                $rowData = $this->parseMultiple($data, 'indefinite');

                break;
            case 'fillblank':
                if(count($data) != 3){
                    return false;
                }
                $rowData = $this->parseFillblank($data);

                break;
            case 'essay':
                if(count($data) != 3){
                    return false;
                }
                $rowData = $this->parseEssay($data);

                break;
        }


        return $rowData;
    }


    /**
     * 格式化单选题
     * @param $data
     * @return array|false
     */
    public function parseSingle($data){


        $rowData = [
            'type'=>'single',
            'question'=>$data[0],
            'option'=>[],
            'answer'=>0,
            'analysis'=>$data[12]
        ];

        foreach($data as $index => $option){
            if($index > 0 && $index < 11){
                if(!$option){
                    break;
                }

                if($option instanceof \PhpOffice\PhpSpreadsheet\RichText\RichText){
                    $option = $option->getPlainText();
                }

                $rowData['option'][] =  $option;
            }
        }


        $answer = ord($data[11]) - 65;

        if($answer < 0 || ($answer > count($rowData['option']) - 1)){
            return false;
        }

        $rowData['option'] = json_encode($rowData['option'],true);
        $rowData['answer'] = $answer;

        return $rowData;
    }


    /**
     * 解析判断题
     * @param $data
     * @return array
     */
    public function parseJudge($data){
        $rowData = [
            'type'=>'judge',
            'question'=>$data[0],
            'option'=>json_encode([]),
            'answer'=>'',
            'analysis'=>$data[2]
        ];

        $rowData['answer'] = 1;

        if(in_array($data[1],["对","正确"])){
            $rowData['answer'] = 0;
        }

        return $rowData;
    }


    /**
     * 解析多选题
     * @param $data
     * @return array|false
     */
    public function parseMultiple($data, $type = 'multiple'){
        $rowData = [
            'type'=>$type,
            'question'=>$data[0],
            'option'=>[],
            'answer'=>'',
            'analysis'=>$data[12]
        ];

        foreach($data as $index => $option){
            if($index > 0 && $index < 11){
                if(!$option){
                    break;
                }
                if($option instanceof \PhpOffice\PhpSpreadsheet\RichText\RichText){
                    $option = $option->getPlainText();
                }
                $rowData['option'][] =  $option;
            }
        }

        $answer = [];

        foreach (str_split($data[11]) as $item){
            $item = ord($item) - 65;
            if($item < 0 || $item > (count($rowData['option']) -1 )){
                return false;
            }
            $answer[] = $item;
        }

        $rowData['option'] = json_encode($rowData['option'],true);

        if(count($answer) < 2 || count($answer) > 10){
            return false;
        }

        $rowData['answer'] = implode(",",$answer);

        return $rowData;
    }


    /**
     * 解析不定项选择题
     * @param $data
     * @return array|false
     */
    public function parseIndefinite($data){
        return $this->parseMultiple($data, 'indefinite');
    }


    /**
     * 解析填空题
     * 格式：题目、各空格答案（空格用"|"分隔，备选答案用","分隔）、解析
     * @param $data
     * @return array
     */
    public function parseFillblank($data){
        $answers = [];
        $blanks = explode('|', $data[1]);
        foreach($blanks as $blank){
            $answers[] = explode(',', $blank);
        }

        return [
            'type'=>'fillblank',
            'question'=>$data[0],
            'option'=>json_encode([]),
            'answer'=>json_encode($answers),
            'analysis'=>$data[2]
        ];
    }


    /**
     * 解析问答题
     * 格式：题目、参考答案、解析
     * @param $data
     * @return array
     */
    public function parseEssay($data){
        return [
            'type'=>'essay',
            'question'=>$data[0],
            'option'=>json_encode([]),
            'answer'=>$data[1],
            'analysis'=>$data[2]
        ];
    }
}