checkquestion

    public function quizCheckAnswer($quiz_id, Request $request) {
        $userdata = Cektoken::cek($request->token);
        $data = [];

        //Cek Quiz
        $quiz = \App\Models\Quiz::find($quiz_id);
        //Quiz tidak ditemukan
        if (! $quiz) {
            return response()->json(['status' => false, 'data' => $data, 'message' => 'Ups, Quiz tidak valid',404]);
        }

        //Asumsikan user belum pernah mengikuti kuis
        $didParticipated = false;
        $didFinished = false;
        $currentScore = 0;
        //Pertanyaan aktif adalah pertanyaan quiz yang pertama
        $currentQuestion = \App\Models\Question::where('quiz_id', $quiz->id)->first()->id;

        //Apakah user pernah mengikuti quiz ini?
        $myResult = \App\Models\QuizResult::where('user_id', $userdata['data']['id'])->where('quiz_id', $quiz_id)->first();

        //User pernah mengikuti
        if (count($myResult) > 0) {
            $didParticipated = true;

            //Apakah user telah menjawab semua pertanyaan yang ada?
            if ($myResult->is_finished == 'y') {

                $didFinished = true;
                $currentScore = $myResult->result;

                //Tampilkan pesan dan hasil yang telah dicapai
                $data['my-score'] = $currentScore;

                return response()->json(['status' => false, 'data' => $data, 'message' => 'Anda sudah menyelesaikan quiz ini',404]);

            }else{
                $didFinished = false;
                //User pernah mengikuti tapi belum menjawab semua pertanyaan
                //Definisikan Hasil terakhir user
                $currentScore = $myResult->result;

                //Pertanyaan yang seharusnya dijawab oleh user
                $currentQuestion = $myResult->current_question;

                //Result adalah record yang sudah ada
                $result = $myResult;
            }
        }else{

            //User belum pernah mengikuti quiz ini
            //Definisikan Quiz Result
            $result = new \App\Models\QuizResult();
        }

        //User tidak mengirimkan data yang benar
        if (!is_array($request->question_id)) {
            return response()->json(['status' => false, 'data' => $data, 'message' => 'Ups, Anda mengirimkan jawaban yang tidak . Harap kirim response dalam bentuk array untuk masing-masing question \'question_id\'[id] => \'answer\''], 400);
        }

        //Check the answer
        foreach ($request->question_id as $k => $v) {

            //
            if ($didParticipated) {
                $currentQuestion = $myResult->current_question+1;
            }else{
                $currentQuestion = \App\Models\Question::where('id', $k)->first()->id;
            }

            if ($currentQuestion !== $k){
                return response()->json(['status' => false, 'data' => $data, 'message' => 'Ups, Pertanyaan tidak valid. Anda mengirimkan jawaban yang tidak . Harap kirim response dalam bentuk array untuk masing-masing question [\'question_id\' => \'answer\']'], 400);
            }

            //Answer Correction
            $question = \App\Models\Question::where('id', $currentQuestion)->first();
            if ($question->correct_key == $request->question_id[$k]){
                //Correct
                $currentScore++;
            }
            $nextQuestion = \App\Models\Question::where('quiz_id', $quiz->id)->where('id', '>', $k)->first();
        }

        //Save the result
        $result->quiz_id = $quiz->id;
        $result->user_id = $userdata['data']['id'];
        $result->question_count = \App\Models\Question::where('quiz_id', $quiz->id)->count();
        $result->result = $currentScore;
        if (count($nextQuestion) > 0) {
            $data['next_question']['id'] = $nextQuestion->id;
            $data['next_question']['type'] = $nextQuestion->type;
            $data['next_question']['text'] = $nextQuestion->text;
            if ($nextQuestion->type == 'pg') {
                $data['next_question']['option_1'] = $nextQuestion->pil_a;
                $data['next_question']['option_2'] = $nextQuestion->pil_b;
                $data['next_question']['option_3'] = $nextQuestion->pil_c;
                $data['next_question']['option_4'] = $nextQuestion->pil_d;
                $data['next_question']['option_5'] = $nextQuestion->pil_e;
                $data['next_question']['option_6'] = $nextQuestion->pil_f;
            }else{
                $data['next_question']['option_1'] = $nextQuestion->pil_a;
                $data['next_question']['option_2'] = $nextQuestion->pil_b;
            }
            $result->is_finished = 'n';
        }else{

            $result->is_finished = 'y';
        }

        $result->current_question = $currentQuestion+1;
        $result->save();

        return response()->json(['status' => true, 'data' => $data, 'message' => ''], 200);
    }