<?php
/**
 * Created by PhpStorm.
 * User: hanl
 * Date: 2018/6/8
 * Time: 10:13
 */

namespace App\Services;

use DB;
use Excel;
use App\Common\Api;
use App\Models\Questions;
use App\Models\Categorys;
use App\Models\Configs;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Redis;

class QuestionService
{
    public function __construct($configs = [])
    {

    }

    const QUESTION_UPLOAD_FAIL = 'bsb_question_upload_fail:';

    /**
     * 获取题库详情
     * @param $activity_id
     * @param $corp_id
     * @param $category_id
     * @return array|mixed
     */
    public static function getCategoryInfo($activity_id, $category_id){
        $res = Categorys::where('activity_id', $activity_id)->where('category_id', $category_id)->first();

        if($res){
            $res = collect($res)->toArray();
            $res = Api::dateFormat($res);
        }

        return $res;
    }

    /**
     * 添加题库
     * @param $params
     * @return array
     */
    public static function saveCategory($params){
        $act_info = ActivityService::getActivityInfo($params['activity_id'], $params['corp_id']);
        if(!$act_info){
            return Api::arr(config('code.activity_not_exist'), trans('msg.activity_not_exist'));
        }

        $query = [];
        $tmp = explode("-",$params["category_name"]);
        Log::info("category_name:".$params["category_name"]);
        Log::info(json_encode($tmp,256));
        $query['category_name'] = $tmp[0];
        if (!empty($tmp[1]) && $tmp[1] == "直接雇员") {
            $query["direct_employees"] = 1;
        } else {
            $query["direct_employees"] = 0;
        }
        $query['update_time']   = time();
        if(!empty($params['category_id']) && isset($params['category_id'])){
            $res = Categorys::where('activity_id', $params['activity_id'])->where('corp_id', $params['corp_id'])->where('category_id', $params['category_id'])->update($query);
            $category_id = $params['category_id'];
        } else {
            $query['corp_id']       = $params['corp_id'];
            $query['activity_id']   = $params['activity_id'];
            $query['create_time']   = time();
            $res = Categorys::insertGetId($query);
            $category_id = $res;
        }

        if($res){
            $data['category_id'] = $category_id;
            return Api::arr(config('code.success'), trans('msg.success'), $data);
        } else {
            return Api::arr(config('code.sql_error'), trans('msg.sql_error'));
        }
    }

    /**
     * 获取题库列表
     * @param $params
     * @return array
     */
    public static function getCategoryList($params){
        $act_info = ActivityService::getActivityInfo($params['activity_id'], $params['corp_id']);
        if(!$act_info){
            return Api::arr(config('code.activity_not_exist'), trans('msg.activity_not_exist'));
        }

        $categorys = Categorys::where('corp_id', $params['corp_id'])->where('activity_id', $params['activity_id'])->get()->toArray();

        foreach ($categorys as $k=>$v) {
            $question_num = Questions::where('category_id', $v['category_id'])
                ->where('corp_id', $params['corp_id'])
                ->where('activity_id', $params['activity_id'])
                ->where('status', 1)                            //题目状态 0 无效 1有效
                ->count();
            $v['questionNum'] = $question_num?$question_num:0;
            //时间格式化
            $categorys[$k] = Api::dateFormat($v);
        }

        return Api::arr(config('code.success'), trans('msg.success'), $categorys);

    }

    /**
     *  计算多个题库内的题目总数
     */
    public static function getQuestionsCount($categorys, $corp_id, $activity_id){
        $category = explode(',', $categorys);

        $count = 0;
        foreach($category as $k=>$v){
            $category_count = Questions::where('corp_id', $corp_id)->where('activity_id', $activity_id)->where('category_id', $v)->count();
            $count += $category_count;
        }

        return $count;
    }

    /**
     * 答题设置
     * @param $params
     * @return array
     */
    public static function questionConfigDetail($params){
        //闯关、必答、PK 题库不能为空  必选项
        if(empty($params['must_category_ids']) || empty($params['blockade_category_ids']) || empty($params['pk_category_ids'])){
            return Api::arr(config('code.params_error'), trans('msg.category_ids_null'));
        }

        $must_category_ids      = $params['must_category_ids'];
        $blockade_category_ids  = $params['blockade_category_ids'];
        $pk_category_ids        = $params['pk_category_ids'];

        //计算选中的题库内题目总数
        $must_count = self::getQuestionsCount($must_category_ids, $params['corp_id'], $params['activity_id']);
        $blockade_count = self::getQuestionsCount($blockade_category_ids, $params['corp_id'], $params['activity_id']);
        $pk_count = self::getQuestionsCount($pk_category_ids, $params['corp_id'], $params['activity_id']);

        //题目数不能大于选中的题库内题目的总数
        if ($must_count < $params['must_question_num'] || $blockade_count < $params['blockade_question_num'] || $pk_count < $params['pk_question_num']) {
            return Api::arr(config('code.params_error'), trans('msg.num_greater_category'));
        }

        //允许答错的题目数不能大于总题目数
        if ($params['must_answer_wrong_num'] > $params['must_question_num'] || $params['blockade_answer_wrong_num'] > $params['blockade_question_num']) {
            return Api::arr(config('code.params_error'), trans('msg.wrong_greater_num'));
        }

        //获取配置项信息
        $config_info = Configs::where('corp_id', $params['corp_id'])->where('activity_id', $params['activity_id'])->first();
        if(!$config_info){
            return Api::arr(config('code.activity_not_exist'), trans('msg.activity_not_exist'));
        }

        //配置项入库
        $config_info = collect($config_info)->toArray();
        $extend_configs = json_decode($config_info['extend_configs'], true);
        $extend_configs['must_question_num']             = $params['must_question_num'];
        $extend_configs['must_answer_wrong_num']         = $params['must_answer_wrong_num'];
        $extend_configs['must_answer_success_km']        = $params['must_answer_success_km'];
        $extend_configs['blockade_question_num']         = $params['blockade_question_num'];
        $extend_configs['blockade_answer_wrong_num']     = $params['blockade_answer_wrong_num'];
        $extend_configs['blockade_answer_success_km']    = $params['blockade_answer_success_km'];
        $extend_configs['pk_question_num']               = $params['pk_question_num'];
        $extend_configs['pk_last_double']                = $params['pk_last_double'];
        $extend_configs['pk_kms']                        = $params['pk_kms'];
        $extend_configs['must_category_ids']             = $must_category_ids;
        $extend_configs['blockade_category_ids']         = $blockade_category_ids;
        $extend_configs['pk_category_ids']               = $pk_category_ids;
        $extend_configs['top_prize_open']                = $params['top_prize_open'];
        $extend_configs['top_prize_text']                = $params['top_prize_text'];
        $extend_configs['top_prize_num']                 = $params['top_prize_num'];
        $extend_configs['must_answer_count_down']        = isset($params['must_answer_count_down']) && $params['must_answer_count_down']>=5?$params['must_answer_count_down']:10;
        $extend_configs['blockade_answer_count_down']    = isset($params['blockade_answer_count_down']) && $params['blockade_answer_count_down']>=5?$params['blockade_answer_count_down']:10;

        $extend_configs = json_encode($extend_configs);
        $res_config = Configs::where('corp_id', $params['corp_id'])->where('activity_id', $params['activity_id'])->update(['extend_configs' => $extend_configs, 'update_time' => time()]);

        return Api::arr(config('code.success'), trans('msg.success'));
    }

    /**
     * 修改/新增题目
     * @param $params
     * @return array
     */
    public static function questionModify($params){
        $query = [];
        $question_options= [];
        $answers = [];
        if(!empty($params['option_a'])){
            $question_options['A'] = Api::trimAll($params['option_a']);
            $answers[] = 'A';
        }
        if(!empty($params['option_b'])){
            $question_options['B'] = Api::trimAll($params['option_b']);
            $answers[] = 'B';
        }
        if(!empty($params['option_c'])){
            $question_options['C'] = Api::trimAll($params['option_c']);
            $answers[] = 'C';
        }
        if(!empty($params['option_d'])){
            $question_options['D'] = Api::trimAll($params['option_d']);
            $answers[] = 'D';
        }

	$correct_answer = self::answerChange($params['correct_answer']);

        //题目和答案不可为空
        if(empty(Api::trimAll($params['question_title'])) || empty($correct_answer)){
            return Api::arr(config('code.params_error'), trans('msg.title_answer_null'));
        }

        //选项最少需要两个
        if(count($question_options)<2){
            return Api::arr(config('code.params_error'), trans('msg.option_error'));
        }

	//答案必须在已有可用选项当中
        foreach($correct_answer as $k=>$v){
            if(!in_array($v, $answers)){
                return Api::arr(config('code.params_error'), trans('msg.answer_error'));
            }
        }

        //参数组装
        $query['question_title']    = Api::trimAll($params['question_title']);
        $query['question_options']  = serialize($question_options);
	$query['correct_answer']    = implode('', $correct_answer);
        $query['question_type']     = count($correct_answer) > 1 ? 2 : 1;       //题目类型  单选/多选
        $query['category_id']       = intval($params['category_id']);
        $query['update_time']       = time();

        //题目ID存在则修改题目，不存在则新增题目
        if(isset($params['question_id']) && $params['question_id'] != 0){
            $question = Questions::where('activity_id', $params['activity_id'])->where('corp_id', $params['corp_id'])->where('question_id', $params['question_id'])->first();
            if(!$question){
                return Api::arr(config('code.question_not_exist'), trans('msg.question_not_exist'));
            }

            $res = Questions::where('activity_id', $params['activity_id'])->where('corp_id', $params['corp_id'])->where('question_id', $params['question_id'])->update($query);
            if(!$res){
                return Api::arr(config('code.sql_error'), trans('msg.sql_error'));
            }

        } else {
            $query['corp_id']       = $params['corp_id'];
            $query['activity_id']   = $params['activity_id'];
            $query['create_time']   = time();

            $res = Questions::insert($query);
            if(!$res){
                return Api::arr(config('code.sql_error'), trans('msg.sql_error'));
            }
        }

        return Api::arr(config('code.success'), trans('msg.success'));
    }

    /**
     * 获取题库内题目数量
     * @param $corp_id
     * @param $activity_id
     * @return array
     */
    public static function getCategoryCount($corp_id, $activity_id){
        $categorys = Categorys::where('activity_id', $activity_id)->where('corp_id', $corp_id)->get()->toArray();

        $data = [];
        if($categorys) {
            foreach ($categorys as $category) {
                $data[$category['category_name']] = Questions::where('activity_id', $activity_id)->where('corp_id', $corp_id)->where('category_id', $category['category_id'])->count();
            }
        }

        return $data;
    }

    /**
     * 新增题库及题目上传
     * @param $data
     * @param $params
     * @return array|string
     */
    public static function questionUpload($data, $params){
        if(empty($data)){
            return Api::arr(config('code.fail'), trans('msg.question_not_exist'));
        }

        //添加题库
        $categoryRes = self::saveCategory($params);

        if($categoryRes['code'] != config('code.success')){
            return Api::arr(config('code.fail'), trans('msg.category_add_fail'));
        }

        $category_id = $categoryRes['data']['category_id'];

        DB::beginTransaction();
        $errors = [];
        $error_num = 0;
        foreach ($data as $k => $v) {
            $question_options = array();
            $question_title = $v[0];
            $answers = array();
            if(!empty($v[1]) || $v[1] == '0'){
                $question_options['A'] = $v[1];
                $answers[] = 'A';
            }
            if(!empty($v[2]) || $v[2] == '0'){
                $question_options['B'] = $v[2];
                $answers[] = 'B';
            }
            if(!empty($v[3]) || $v[3] == '0'){
                $question_options['C'] = $v[3];
                $answers[] = 'C';
            }
            if(!empty($v[4]) || $v[4] == '0'){
                $question_options['D'] = $v[4];
                $answers[] = 'D';
            }

            $correct_answer = $v[5];
	    $correct_answer = self::answerChange($correct_answer);

            $query = array();
            $query['corp_id']           = $params['corp_id'];
            $query['activity_id']       = $params['activity_id'];
            $query['category_id']       = $category_id;
            $query['question_title']    = $question_title;

            //答案单选 答案不能为空 题目不能为空 选项最少两个 答案不在选项中   都视为错误题目
            if(empty($correct_answer)){
                $v[6] = '答案为空';
                $errors[] = $v;
                $error_num += 1;
                continue;
            }
            if(empty($query['question_title'])){
                $v[6] = '题目为空';
                $errors[] = $v;
                $error_num += 1;
                continue;
            }
            if(count($answers) < 2){
                $v[6] = '选项少于2个';
                $errors[] = $v;
                $error_num += 1;
                continue;
            }
            //支持多选
            $correct_type = 0;
            foreach($correct_answer as $key=>$val){
                if(!in_array($val, $answers)){
                    $v[6] = '答案中选项为空或不存在';
                    $errors[] = $v;
                    $error_num += 1;
                    $correct_type = 1;
                    continue;
                }
            }
            if($correct_type == 1){
                continue;
            }

            $query['correct_answer']   = implode('', $correct_answer);
            $query['question_type']    = count($correct_answer) > 1 ? 2 : 1;
            $query['question_options'] = serialize($question_options);      //序列化
            $query['create_time'] = time();
            $query['update_time'] = time();

            $res = Questions::insert($query);
            if (!$res) {
                DB::rollBack();
                return Api::arr(config('code.sql_error'), trans('msg.sql_error'));
            }
        }

        DB::commit();

        //错误记录存入redis
        Redis::set(self::QUESTION_UPLOAD_FAIL.$params['activity_id'], json_encode($errors),'EX',3600);

        $res = [];
        $res['total']       = count($data);
        $res['error_num']   = $error_num;
        $res['success_num'] = $res['total'] - $error_num;
        $res['category_id'] = $category_id;
        return Api::arr(config('code.success'), trans('msg.success'), $res);
    }

    /**
     * 删除题目
     * 2018-06-22 10:32:00
     * @param $params
     * @return array
     */
    public static function delQuestion($params){
        //题目信息
        $questionInfo = Questions::where('activity_id', $params['activity_id'])
                                ->where('corp_id', $params['corp_id'])
                                ->where('category_id', $params['category_id'])
                                ->where('question_id', $params['question_id'])
                                ->where('status', 1)
                                ->first();

        if(!$questionInfo){
            return Api::arr(config('code.question_not_exist'), trans('msg.question_not_exist'));
        }

        //删除题目
        $res = Questions::where('activity_id', $params['activity_id'])
                        ->where('corp_id', $params['corp_id'])
                        ->where('category_id', $params['category_id'])
                        ->where('question_id', $params['question_id'])
                        ->where('status', 1)
                        ->delete();

        if($res){
            return Api::arr(config('code.success'), trans('msg.success'));
        } else {
            return Api::arr(config('code.sql_error'), trans('msg.sql_error'));
        }
    }

    /**
     * 下载上传失败的题目数据
     * @param $data
     */
    public static function downloadQuestionExcel($data){
        $cellData = [
            ['题目标题', 'A选项', 'B选项', 'C选项', 'D选项', '答案', '错误原因'],
            ['填写规则'],
        ];

        foreach($cellData as $k=>$v){
            array_unshift($data, $v);
        }

        Excel::create('题目导入错误数据'.date('mdHi'),function($excel) use ($data){
            $excel->sheet('题目信息', function($sheet) use ($data){

                $tot = count($data) ;
                $sheet->setWidth(array(
                    'A'     =>  50,
                    'B'     =>  15,
                    'C'     =>  15,
                    'D'     =>  15,
                    'E'     =>  15,
                    'F'     =>  15,
                    'G'     =>  15,
                ))->rows($data)->setFontSize(12);

                //设置第一行的表格格式
                $sheet->setStyle([
                    'font' => [
                        'size' => 12,
                        'bold' => false,
                    ]
                ])
                    ->mergeCells('A1:G1')       //合并单元格
                    ->setHeight(1, 100)         //设置行高
                    ->setHeight(2, 30)
                    ->cells('A1:G1', function($cells){          //设置单元格格式
                        $cells->setValignment('center');         //文本对齐方式
                        $cells->setFontWeight('bold');           //粗体
                    })
                    ->cells('A2:G2', function($cells){
                        $cells->setValignment('center');
                        $cells->setBackground('#92D050');
                        $cells->setFontWeight('bold');
                        $cells->setFontSize(10);
                        $cells->setAlignment('center');
                    })
                    ->cells('B2:G'.$tot, function($cells) {
                        $cells->setAlignment('center');
                    })
                    ->cells('G3:G'.$tot, function($cells) {
                        $cells->setFontColor('#ff0000');
                        $cells->setFontWeight('bold');
                    });
            });
        })->export('xls');
    }

    /**
     * 添加默认题库
     * @param $activity_id
     * @return array
     */
    public static function addDefault($activity_id){
        $activity_info = ActivityService::getActivityInfo($activity_id);
        if(!$activity_info){
            return Api::arr(config('code.fail'), trans('msg.activity_not_exist'));
        }

        $default_questions = Questions::where('corp_id', 0)->where('activity_id', 0)->get()->toArray();
        $query_category = [];
        $query_category['corp_id']      = $activity_info['corp_id'];
        $query_category['activity_id']  = $activity_id;
        $query_category['category_name']  = '样例题库';
        $query_category['create_time']  = time();
        $query_category['update_time']  = time();

        $res = Categorys::insertGetId($query_category);
        if(!$res){
            return Api::arr(config('code.sql_error'), trans('msg.sql_error'));
        }

        foreach($default_questions as $k=>$v){
            $query_question = [];
            $query_question['corp_id']      = $activity_info['corp_id'];
            $query_question['activity_id']  = $activity_id;
            $query_question['question_title'] = $v['question_title'];
            $query_question['category_id']  = $res;
            $query_question['question_options'] = $v['question_options'];
            $query_question['correct_answer'] = $v['correct_answer'];
            $query_question['create_time']  = time();
            $query_question['update_time']  = time();
            Questions::insert($query_question);
        }

        $data['category_id'] = $res;
        return Api::arr(config('code.success'), trans('msg.success'), $data);
    }

    /**
     * 删除题库（活动委发布状态才可删除）
     * @param $activity_id
     * @param $category_id
     * @return array
     */
    public static function delCategory($activity_id, $category_id){
        $activityInfo = ActivityService::getActivityInfo($activity_id);

        if(!$activityInfo){
            return Api::arr(config('code.fail'), trans('msg.activity_not_exist'));
        }

        if($activityInfo['is_complete_set'] == 1){
            return Api::arr(config('code.fail'), '活动已发布，无法删除题库');
        }

        $categoryInfo = Categorys::where('category_id', $category_id)->first();
        if(!$categoryInfo){
            return Api::arr(config('code.fail'), trans('msg.category_not_exist'));
        }

        Categorys::where('category_id', $category_id)->delete();

        $questions = Questions::where('category_id', $category_id)->get();
        foreach($questions as $k=>$v){
            Questions::where('question_id', $v['question_id'])->delete();
        }

        return Api::arr(config('code.success'), trans('msg.success'));
    }
    
    /**
     * 题目答案转换
     * @param $correct_answer
     * @return array|string
     */
    public static function answerChange($correct_answer){
        //去除中文字并转换大写
        $arr = strtoupper(preg_replace('/([\x80-\xff]*)/i','',$correct_answer));
        //拆分单个选项并去除重复选项
        $arr = array_unique(str_split($arr));
        //排序
        sort($arr);
        return $arr;
    }
}
?>