public function check_qualification($course_id){

-    //     $scores=$this->helper->student_scores(auth()->user()->id);

-    //     $scores_array=[];/*student scores*/

-    //     foreach($scores as $key => $value){

-    //         $scores_array[$value->subject_id]=$value->score;

-    //     }

-    //    $course_subjects=$this->helper->course_subject_scores($course_id,null);/*course subjects*/

-    //     if(count($course_subjects) ==0){

-    //         return ['is_qualified'=>"No",'reason'=>'No scores for the course selected'];

-    //     }

-    //     $subject_categories=array_unique($course_subjects->pluck('category_id')->toArray());/*categories required by the subject*/

-    //     /*sort categories in ascending order*/

-    //     sort($subject_categories);

-    //     $student_scores=[];

-    //     if(count($subject_categories) <5){

-    //         $student_scores['cat3_id']=55;

-    //         $student_scores['cat3_grade']=0;

-    //     }

-    //     foreach ($subject_categories as $category){

-    //         /*student subjects in each course subject category:*/

-    //         $student_category_score=$this->helper->student_subjects_per_category($course_id,$category,[]);

-    //         /*check if meeting requirements*/

-    //         $meeting_requirements=$this->helper->course_minimum_requirements($course_id,$category,$student_category_score->score);

-    //         if($meeting_requirements && $meeting_requirements->count() > 0){

-    //             /*check the category in which the the student is qualifying*/

-    //             if($category==1){/*languages category*/

-    //                 $student_scores['lang_id']=$student_category_score->subject_id;

-    //                 $student_scores['lang_grade']=$student_category_score->score;

-    //             }elseif ($category==2){/*compulsory*/

-    //                 $student_scores['comp_id']=$student_category_score->subject_id;

-    //                 $student_scores['comp_grade']=$student_category_score->score;

-    //             }elseif ($category==3){/*mean_grade*/

-    //                 $student_scores['mg_id']=$student_category_score->subject_id;

-    //                 $student_scores['mg_grade']=$student_category_score->score;

-    //             }elseif ($category==4){/*category 2 subjects*/

-    //                 $student_scores['cat2_id']=$student_category_score->subject_id;

-    //                 $student_scores['cat2_grade']=$student_category_score->score;

-    //             }elseif($category==5){/*category 3 subjects*/

-    //                $get_category_3=$this->helper->student_subjects_per_category($course_id,$category,[$student_scores['cat2_id']]);

-    //                $qualify_category_3=$this->helper->course_minimum_requirements($course_id,$category,$get_category_3->score);

-    //                 if($qualify_category_3 && count($qualify_category_3) > 0){

-    //                     $student_scores['cat3_id']=$get_category_3->subject_id;

-    //                     $student_scores['cat3_grade']=$get_category_3->score;

-    //                 }else{

-    //                     return ['is_qualified'=>"No",'reason'=>"Did not qualify on third category subjects"];

-    //                 }

-                    

-    //             }else{

-    //                 $get_category_4=$this->helper->student_subjects_per_category($course_id,$category,[$student_scores['cat2_id'],$student_scores['cat3_id']]);

-    //                 $qualify_category_4=$this->helper->course_minimum_requirements($course_id,$category,$get_category_4->score);

-    //                 if($qualify_category_4 && count($qualify_category_4) > 0){

-    //                     $student_scores['cat4_id']=$get_category_4->subject_id;

-    //                     $student_scores['cat4_grade']=$get_category_4->score;

-    //                 }else{

-    //                     return ['is_qualified'=>"No",'reason'=>"Did not qualify on fourth category subjects"];

-    //                 }

-    //             }

-

-    //         }else{

-    //             return ['is_qualified'=>"No",'reason'=>"Did not qualify on ".$this->helper->subject_category_name($category)];

-    //         }

-    //     }

-    //     $course=Course::find($course_id);

-    //     return ['is_qualified'=>"Yes",'student_scores'=>$student_scores,'course'=>$course];

-    // }