<?php

namespace app\admin\controller\train;

use app\admin\model\train\ClassDictModel;
use app\admin\model\train\TrainExam;
use app\admin\model\train\TrainExamReQuestion;
use app\admin\service\train\TrainService;
use app\common\controller\Backend;
use think\Db;
use think\Exception;
use think\exception\PDOException;
use think\exception\ValidateException;
use think\facade\Request;

/**
 * 培训-题目
 *
 * @icon fa fa-circle-o
 */
class Question extends Backend
{

    protected $searchFields = 'title';

    /**
     * QuestionModel模型对象
     * @var \app\admin\model\train\QuestionModel
     */
    protected $model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\train\QuestionModel;
        $this->view->assign([
            'question_type' => [
                1 => '单选',
                2 => '多选',
                3 => '判断'
            ]
        ]);

    }

    /**
     * 查看
     */
    public function index()
    {
        //设置过滤方法
        $this->request->filter(['strip_tags']);
        if ($this->request->isAjax()) {
            //如果发送的来源是Selectpage，则转发到Selectpage
            if ($this->request->request('keyField')) {
                return $this->selectpage();
            }
            list($where, $sort, $order, $offset, $limit) = $this->buildparams();
            $del_where = ['is_del' => 0];
            $exam_where = false;
            if($this->request->has('show_exam_id')){
                $question_ids = model(TrainExamReQuestion::class)
                    ->whereIn('exam_id', $this->request->param('show_exam_id'))
                    ->column('question_id');
                $exam_where = [
                    'id' => ['in', $question_ids]
                ];
                $del_where = false;
            }
            $total = $this->model
                ->where($where)
                ->where($del_where)
                ->where($exam_where)
                ->order($sort, $order)
                ->count();
            $list = $this->model
                ->where($where)
                ->where($del_where)
                ->where($exam_where)
                ->order($sort, $order)
                ->limit($offset, $limit)
                ->field('is_del, answer1, answer2, answer3, answer4, answer5, answer6',true)
                ->select();

            $list = collection($list)->toArray();
            $total_score = 0;
            $qualified = 0;
            if ($list) {
                $class_dict = Db::table(ClassDictModel::getTable())
                    ->column('id, title');

                foreach ($list as &$val) {
                    $val['class_id'] = $class_dict[$val['class_id']] ?? '';
                    $val['result'] = TrainService::instance()->formatResult($val['result'], $val['type']);
                }
                unset($val);
                if($this->request->has('exam_id')){
                    $question_ids = model(TrainExamReQuestion::class)
                        ->whereIn('exam_id', $this->request->param('exam_id'))
                        ->column('question_id');
                    foreach ($list as &$val){
                        $val['checkbox'] = in_array($val['id'], $question_ids) ? 1 : 0;
                    }
                    unset($val);
                }
                if($this->request->has('show_exam_id')){
                    $scores = model(TrainExamReQuestion::class)
                        ->where('exam_id', $this->request->param('show_exam_id'))
                        ->column('question_id, score');
                    foreach ($list as &$val){
                        $val['score'] = $scores[$val['id']] ?? '';
                    }
                    unset($val);
                    $exam = model(TrainExam::class)->get($this->request->param('show_exam_id'));
                    $total_score = $exam['total'];
                    $qualified = $exam['qualified'];
                }
            }

            $result = array("total" => $total, "rows" => $list, 'total_score' => $total_score, 'qualified' => $qualified);

            return json($result);
        }
        return $this->view->fetch();
    }

    /**
     * 添加
     */
    public function add()
    {
        if ($this->request->isPost()) {
            $params = $this->request->post("row/a");
            $type = $params['type'];
            $correct = $params['result'];
            if(!$correct){
                $this->error('缺少正确答案');
            }
            switch ($type){
                case 2:
                    $correct = implode('', $correct);
                    break;
                case 3:
                    $params['answer1'] = '对';
                    $params['answer2'] = '错';
                    unset($params['answer3'], $params['answer4'], $params['answer5'], $params['answer6']);
                    break;
                default;
            }
            $params['result'] = $correct;
            if ($params) {
                $params = $this->preExcludeFields($params);

                if ($this->dataLimit && $this->dataLimitFieldAutoFill) {
                    $params[$this->dataLimitField] = $this->auth->id;
                }
                $result = false;
                Db::startTrans();
                try {
                    //是否采用模型验证
                    if ($this->modelValidate) {
                        $name = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                        $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.add' : $name) : $this->modelValidate;
                        $this->model->validateFailException(true)->validate($validate);
                    }
                    $result = $this->model->allowField(true)->save($params);
                    Db::commit();
                } catch (ValidateException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (PDOException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (Exception $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                }
                if ($result !== false) {
                    $this->success();
                } else {
                    $this->error(__('No rows were inserted'));
                }
            }
            $this->error(__('Parameter %s can not be empty', ''));
        }
        return $this->view->fetch();
    }

    public function del($ids = "")
    {
        if ($ids) {
            $pk = $this->model->getPk();
            $adminIds = $this->getDataLimitAdminIds();
            if (is_array($adminIds)) {
                $this->model->where($this->dataLimitField, 'in', $adminIds);
            }
            try {
                $count = $this->model->where($pk, 'in', explode(',', $ids))
                    ->update([
                        'is_del' => 1
                    ]);
            } catch (PDOException $e) {
                Db::rollback();
                $this->error($e->getMessage());
            } catch (Exception $e) {
                Db::rollback();
                $this->error($e->getMessage());
            }
            if ($count) {
                $this->success();
            } else {
                $this->error(__('No rows were deleted'));
            }
        }
        $this->error(__('Parameter %s can not be empty', 'ids'));
    }

    public function import()
    {
        // 获取文件
        $file = $this->request->file('file');
        if(!$file){
            return $this->setError('获取文件失败');
        }
        $info = $file->validate(['ext'=>'xls,xlsx'])->move( './uploads');
        if ($info) {
            $realPath = ROOT_PATH . 'public/uploads/' . $info->getSaveName();
            $data = read_excel($realPath);
            if (!$data) {
                return $this->setError('请写入内容');
            }
            $save = [];
            $type_arr = [
                '单选' => 1,
                '多选' => 2,
                '判断' => 3
            ];
            $result_arr = [
                'A' => 1,
                'B' => 2,
                'C' => 3,
                'D' => 4,
                'E' => 5,
                'F' => 6,
                '对' => 1,
                '错' => 2,
            ];
            $class_dict = Db::table(ClassDictModel::getTable())->column('title, id');
            foreach ($data as  $key => $val){
                // 验证格式
                if(!$val[0]){
                    $this->error($key + 2 . '行，缺少题目类型');
                }
                if(!$val[2]){
                    $this->error($key + 2 . '行，缺少题目标题');
                }
                if(!$val[3]){
                    $this->error($key + 2 . '行，缺少正确答案');
                }
                $type = trim($val[0]);
                if(!isset($type_arr[$type])){
                    $this->error($key + 2 . '行，错误的题目类型格式');
                }
                $class = trim($val[1]);
                if(!isset($class_dict[$class])){
                    $this->error($key + 2 . '行，不存在的分类');
                }
                // 格式化正确答案
                $answer = (string) trim($val[3]);
                $answer_arr = ch2arr($answer);
                $answer_temp = [];
                foreach ($answer_arr as $word){
                    if(!$word){
                        continue;
                    }
                    if(!isset($result_arr[$word])){
                        $this->error($key + 2 . '行，错误的正确答案格式');
                    }
                    $answer_temp[] = $result_arr[$word];
                }
                $answer_temp = array_unique($answer_temp);
                sort($answer_temp);
                $answer = implode('', $answer_temp);
                // 组装数据
                if($type_arr[$type] === 3){
                    $val[4] = '对';
                    $val[5] = '错';
                    $val[6] = '';
                    $val[7] = '';
                    $val[8] = '';
                    $val[9] = '';
                }
                $save[] = [
                    'title'    => trim($val[2]),
                    'class_id' => $class_dict[$class],
                    'type'     => $type_arr[$type],
                    'result'   => $answer,
                    'answer1'  => trim($val[4]),
                    'answer2'  => trim($val[5]),
                    'answer3'  => trim($val[6]),
                    'answer4'  => trim($val[7]),
                    'answer5'  => trim($val[8]),
                    'answer6'  => trim($val[9])
                ];
            }
            $res = $this->model->insertAll($save);
            if(!$res){
                $this->error();
            }
            return json(['code'=>1]);
        }
        $this->error();

    }

    public function detail($ids)
    {
        $data = $this->model->get($ids);
        $this->view->detail = $data;
        $this->view->result = TrainService::instance()->formatResult($data['result'], $data['type']);
        $this->view->type = TrainService::instance()->formatType($data['type']);
        return $this->view->fetch();
    }

}