@extends('layouts.app')

@section('title', $app_setting['name'] . ' | ' . __('Exam Create'))

@push('styles')
    <style>
        .notValid {
            border: 2px solid red !important;
        }
    </style>
@endpush

@section('content')
    <!-- ****Body-Section***** -->
    <div class="app-main-outer">
        <div class="app-main-inner">
            <div class="page-title-actions px-3 d-flex">
                <nav aria-label="breadcrumb">
                    <ol class="breadcrumb">
                        <li class="breadcrumb-item"><a href="{{ route('admin.dashboard') }}">{{ __('Dashboard') }}</a></li>
                        <li class="breadcrumb-item"><a href="{{ route('course.index') }}">{{ __('Course') }}</a></li>
                        <li class="breadcrumb-item"><a
                                href="{{ route('exam.index', $selectedCourse->id) }}">{{ __('Exam') }}</a>
                        </li>
                        <li class="breadcrumb-item active" aria-current="page">{{ __('Create') }}</li>
                    </ol>
                </nav>
            </div>
            <div class="row" id="deleteTableItem">
                <div class="col-md-12">
                    <div class="main-card card d-flex h-100 flex-column">
                        <div class="card-body">
                            <h5 class="card-title py-2">{{ __('New Exam') }} {{ session('errors') }}</h5>
                            <form action="{{ route('exam.store') }}" method="POST" enctype="multipart/form-data">
                                @csrf
                                <div class="row">
                                    <div class="col-4">
                                        <div class="form-group">
                                            <label class="form-label" for="categoryInput">{{ __('Course') }}</label>
                                            <select id="categoryInput" class="form-select form-control" name="course_id"
                                                aria-hidden="true">
                                                @foreach ($courses as $course)
                                                    <option value="{{ $course->id }}"
                                                        {{ $course->id === $selectedCourse->id ? 'selected="selected"' : '' }}">
                                                        {{ $course->title }}</option>
                                                @endforeach
                                            </select>
                                            <p id="categoryError" class="text-danger my-1 "></p>
                                        </div>
                                    </div>
                                    <div class="col-4">
                                        <div class="mb-3">
                                            <label for="titleInput" class="form-label">{{ __('Exam Title') }}</label>
                                            <input type="text" name="title" class="form-control" id="titleInput"
                                                placeholder="{{ __('Enter exam title') }}" value="{{ old('title') }}">
                                            @error('title')
                                                <span class="text-danger my-1">{{ $message }}</span>
                                            @enderror
                                            <p id="titleError" class="text-danger my-1 "></p>
                                        </div>
                                    </div>

                                    <div class="col-4">
                                        <div class="mb-3">
                                            <label for="durationInput" class="form-label">{{ __('Duration') }} <small>
                                                    ({{ __('In Minutes') }})</small></label>
                                            <input type="number" min="1" name="duration" class="form-control"
                                                id="durationInput" placeholder="{{ __('Enter exam duration') }}"
                                                value="{{ old('duration') }}">
                                            @error('duration')
                                                <span class="text-danger my-1">{{ $message }}</span>
                                            @enderror
                                            <p id="durationError" class="text-danger my-1 "></p>
                                        </div>
                                    </div>

                                    <div class="col-4">
                                        <div class="mb-3">
                                            <label for="perQuestionMarkInput" class="form-label">
                                                {{ __('Marks Per Question') }}<small></small>
                                            </label>
                                            <input type="number" min="1" name="mark_per_question"
                                                class="form-control" id="perQuestionMarkInput"
                                                placeholder="{{ __('Enter marks per question') }}"
                                                value="{{ old('mark_per_question') }}">
                                            @error('mark_per_question')
                                                <span class="text-danger my-1">{{ $message }}</span>
                                            @enderror
                                            <p id="perQuestionMarkError" class="text-danger my-1 "></p>
                                        </div>
                                    </div>

                                    <div class="col-4">
                                        <div class="mb-3">
                                            <label for="passMarkInput" class="form-label">
                                                {{ __('Pass Marks') }}<small></small>
                                            </label>
                                            <input type="number" min="1" name="pass_marks" class="form-control"
                                                id="passMarkInput" placeholder="{{ __('Enter marks required to pass') }}"
                                                value="{{ old('pass_marks') }}">
                                            @error('pass_marks')
                                                <span class="text-danger my-1">{{ $message }}</span>
                                            @enderror
                                            <p id="passMarkError" class="text-danger my-1 "></p>
                                        </div>
                                    </div>


                                    <div class="col-12">
                                        <div class="d-flex">
                                            <label class="form-label fs-5 me-auto my-auto">{{ __('Questions') }}</label>
                                            <button type="button" class="btn btn-outline-primary my-3 me-2"
                                                onclick="addMcqQuestionItem()">+
                                                {{ __('Add Multiple Choice Question') }}</button>
                                            <button type="button" class="btn btn-primary my-3"
                                                onclick="addBinaryChoiceQuestionItem()">+
                                                {{ __('Add True/False Question') }}</button>
                                        </div>

                                        <div id="questionsWrapper">
                                            <div id="question1" class="row border border-primary rounded-3 p-3 mb-3">
                                                <input type="hidden" name="questions[1][question_type]"
                                                    value="multiple_choice">
                                                <div class="col-6">
                                                    <div class="mb-3">
                                                        <label for="textInput" class="form-label">
                                                            {{ __('Question Title') }} ({{ __('can add multiple choice') }}.)
                                                        </label>
                                                            <input type="text" name="questions[1][question_text]"
                                                            class="form-control" id="textInput"
                                                            placeholder="{{ __('Enter question text') }}"
                                                            value="{{ old('questions.1.question_text') }}">
                                                        @error('questions.1.question_text')
                                                            <p class="text-danger">{{ $message }}</p>
                                                        @enderror
                                                    </div>
                                                </div>
                                                <div class="col-12 border rounded-4" id="question1_options">

                                                    <div class="row py-3 mx-3">
                                                        <div class="col-6 d-flex mb-3">
                                                            <label
                                                                class="form-check-label my-auto me-3">{{ __('Option A') }}</label>
                                                            <input class="form-control w-50 my-auto me-2" type="text"
                                                                name="questions[1][option_1][text]"
                                                                placeholder="{{ __('Enter option text') }}"
                                                                value="{{ old('questions.1.option_1.text') }}">
                                                            <input class="form-check-input my-auto me-2" type="checkbox"
                                                                value="1" name="questions[1][option_1][is_correct]"
                                                                {{ old('questions.1.option_1.is_correct') ? 'checked' : '' }}>
                                                            <label
                                                                class="form-check-label my-auto">{{ __('Correct') }}</label>
                                                        </div>
                                                        <div class="col-6 d-flex mb-3">
                                                            <label
                                                                class="form-check-label my-auto me-3">{{ __('Option B') }}</label>
                                                            <input class="form-control w-50 my-auto me-2" type="text"
                                                                name="questions[1][option_2][text]"
                                                                placeholder="{{ __('Enter option text') }}"
                                                                value="{{ old('questions.1.option_2.text') }}">
                                                            <input class="form-check-input my-auto me-2" type="checkbox"
                                                                value="1" name="questions[1][option_2][is_correct]"
                                                                {{ old('questions.1.option_2.is_correct') ? 'checked' : '' }}>
                                                            <label
                                                                class="form-check-label my-auto">{{ __('Correct') }}</label>
                                                        </div>
                                                        <div class="col-6 d-flex">
                                                            <label
                                                                class="form-check-label my-auto me-3">{{ __('Option C') }}</label>
                                                            <input class="form-control w-50 my-auto me-2" type="text"
                                                                name="questions[1][option_3][text]"
                                                                placeholder="{{ __('Enter option text') }}"
                                                                value="{{ old('questions.1.option_3.text') }}">
                                                            <input class="form-check-input my-auto me-2" type="checkbox"
                                                                value="1" name="questions[1][option_3][is_correct]"
                                                                {{ old('questions.1.option_3.is_correct') ? 'checked' : '' }}>
                                                            <label
                                                                class="form-check-label my-auto">{{ __('Correct') }}</label>
                                                        </div>
                                                        <div class="col-6 d-flex">
                                                            <label
                                                                class="form-check-label my-auto me-3">{{ __('Option D') }}</label>
                                                            <input class="form-control w-50 my-auto me-2" type="text"
                                                                name="questions[1][option_4][text]"
                                                                placeholder="{{ __('Enter option text') }}"
                                                                value="{{ old('questions.1.option_4.text') }}">
                                                            <input class="form-check-input my-auto me-2" type="checkbox"
                                                                value="1" name="questions[1][option_4][is_correct]"
                                                                {{ old('questions.1.option_4.is_correct') ? 'checked' : '' }}>
                                                            <label
                                                                class="form-check-label my-auto">{{ __('Correct') }}</label>
                                                        </div>
                                                    </div>
                                                </div>
                                            </div>
                                        </div>
                                    </div>
                                </div>
                            </form>
                            <div class="col-12">
                                <button type="button" id="submitButton"
                                    class="btn btn-primary btn-lg px-5 py-2">{{ __('Create') }}</button>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <!-- ****End-Body-Section**** -->
    </div>

@endsection
@push('scripts')
    <script>
        var questionCounter = 2;

        function addMcqQuestionItem() {
            var questionRow = `<div id="question${questionCounter}" class="row border border-primary rounded-3 p-3 mb-3">
                                <input type="hidden" name="questions[${questionCounter}][question_type]" value="multiple_choice">
                                    <div class="col-6">
                                        <div class="mb-3">
                                            <label for="textInput" class="form-label">{{ __('Question Title') }} ({{ __('can add multiple choice') }}.)</label>
                                            <input type="text" name="questions[${questionCounter}][question_text]"
                                                class="form-control" id="textInput"
                                                placeholder="{{ __('Enter question tex') }}t">
                                        </div>
                                    </div>

                                    <div class="col-2">
                                        <label class="form-label">&nbsp;</label>
                                        <div>
                                            <button type="button" class="btn btn-danger mb-4"
                                                onclick="removeQuestionItem(${questionCounter})">-
                                                {{ __('Remove Question') }}
                                                </button>
                                        </div>
                                    </div>
                                    <div class="col-12 border rounded-4" id="question${questionCounter}_options">
                                        <div class="row py-3 mx-3">
                                            <div class="col-6 d-flex mb-3">
                                                <label class="form-check-label my-auto me-3">
                                                    {{ __('Option A') }}
                                                </label>
                                                <input class="form-control w-50 my-auto me-2" type="text"
                                                    name="questions[${questionCounter}][option_1][text]" placeholder="{{ __('Enter option text') }}">
                                                <input class="form-check-input my-auto me-2" type="checkbox"
                                                    value="1" name="questions[${questionCounter}][option_1][is_correct]">
                                                <label class="form-check-label my-auto">
                                                    {{ __('Correct') }}
                                                </label>
                                            </div>
                                            <div class="col-6 d-flex mb-3">
                                                <label class="form-check-label my-auto me-3">
                                                    {{ __('Option B') }}
                                                </label>
                                                <input class="form-control w-50 my-auto me-2" type="text"
                                                    name="questions[${questionCounter}][option_2][text]" placeholder="{{ __('Enter option text') }}">
                                                <input class="form-check-input my-auto me-2" type="checkbox"
                                                    value="1" name="questions[${questionCounter}][option_2][is_correct]">
                                                <label class="form-check-label my-auto">
                                                    {{ __('Correct') }}
                                                </label>
                                            </div>
                                            <div class="col-6 d-flex">
                                                <label class="form-check-label my-auto me-3">
                                                    {{ __('Option C') }}
                                                </label>
                                                <input class="form-control w-50 my-auto me-2" type="text"
                                                    name="questions[${questionCounter}][option_3][text]" placeholder="{{ __('Enter option text') }}">
                                                <input class="form-check-input my-auto me-2" type="checkbox"
                                                    value="1" name="questions[${questionCounter}][option_3][is_correct]">
                                                <label class="form-check-label my-auto">
                                                    {{ __('Correct') }}
                                                </label>
                                            </div>
                                            <div class="col-6 d-flex">
                                                <label class="form-check-label my-auto me-3">
                                                    {{ __('Option D') }}
                                                </label>
                                                <input class="form-control w-50 my-auto me-2" type="text"
                                                    name="questions[${questionCounter}][option_4][text]" placeholder="{{ __('Enter option text') }}">
                                                <input class="form-check-input my-auto me-2" type="checkbox"
                                                    value="1" name="questions[${questionCounter}][option_4][is_correct]">
                                                <label class="form-check-label my-auto">
                                                    {{ __('Correct') }}
                                                </label>
                                            </div>
                                        </div>
                                    </div>
                                </div>`

            $('#questionsWrapper').append(questionRow);
            ++questionCounter;
        }


        function addBinaryChoiceQuestionItem() {
            var questionRow = `<div id="question${questionCounter}" class="row border border-primary rounded-3 p-3 mb-3">
                            <input type="hidden" name="questions[${questionCounter}][question_type]" value="binary">
                            <div class="col-6">
                                <div class="mb-3">
                                    <label for="textInput" class="form-label">{{ __('Question Title') }}</label>
                                    <input type="text" required name="questions[${questionCounter}][question_text]"
                                           class="form-control" id="textInput" placeholder="{{ __('Enter question text') }}">
                                </div>
                            </div>

                            <div class="col-2">
                                <label class="form-label">&nbsp;</label>
                                <div>
                                    <button type="button" class="btn btn-danger mb-4"
                                            onclick="removeQuestionItem(${questionCounter})">-
                                        {{ __('Remove Question') }}
                                    </button>
                                </div>
                            </div>
                            <div class="col-12 border rounded-4" id="question${questionCounter}_options">
                                <div class="row py-3 mx-3">
                                <div class="d-flex mb-3">
                                    <input class="form-check-input my-auto me-2" type="radio"
                                           value="yes" name="questions[${questionCounter}][correct_option]" required>
                                    <label class="form-check-label my-auto">
                                        {{ __('True') }}
                                    </label>
                                </div>
                                <div class="d-flex">
                                    <input class="form-check-input my-auto me-2" type="radio"
                                           value="no" name="questions[${questionCounter}][correct_option]" required>
                                    <label class="form-check-label my-auto">
                                        {{ __('False') }}
                                    </label>
                                </div>
                            </div>
                            </div>
                        </div>`;

            $('#questionsWrapper').append(questionRow);
            ++questionCounter;
        }

        function removeQuestionItem(elementNumber) {
            $(`#question${elementNumber}`).remove();
        }

        $('#submitButton').on('click', function(e) {
            e.preventDefault();

            const courseStatus = validateCourseContents();
            const questionStatus = validateQuestionsWrapper()

            console.log(`courseStatus: ${courseStatus}`, `questionStatus: ${questionStatus}`);

            if (questionStatus && courseStatus) {
                $('form').submit()
            }
        })

        function validateCourseContents() {

            let [categoryValue, titleInput, durationInput, perQuestionMarkInput, passMarkInput] = [$('#categoryInput')
                .val(), $('#titleInput').val(), $('#durationInput').val(), $('#perQuestionMarkInput').val(), $(
                    '#passMarkInput')
                .val()
            ]
            let [categoryError, titleError, durationError, perQuestionMarkError, passMarkError] = [$('categoryError'), $(
                '#titleError'), $('#durationError'), $('#perQuestionMarkError'), $('#passMarkError')];

            // rest errors
            categoryError.text('')
            titleError.text('')
            durationError.text('')
            perQuestionMarkError.text('')
            passMarkError.text('')

            if (!categoryValue) {
                categoryError.text('Oops! You missed this. Please complete the field.');
            }

            if (!titleInput) {
                titleError.text('Oops! You missed this. Please complete the field.');
            }

            if (!durationInput) {
                durationError.text('Oops! You missed this. Please complete the field.');
            }

            if (!perQuestionMarkInput) {
                perQuestionMarkError.text('Oops! You missed this. Please complete the field.');
            }
            if (!passMarkInput) {
                passMarkError.text('Oops! You missed this. Please complete the field.');
            }

            let status = false;
            if (categoryValue && titleInput && durationInput && perQuestionMarkInput && passMarkInput) {
                status = true;
            }
            return status;
        }

        function validateQuestionsWrapper() {
            let questionsWrapper = $('#questionsWrapper');;

            let contents = questionsWrapper.children()

            let errorStatus = 0;


            for (let index = 0; index < contents.length; index++) {

                const element = contents[index];

                var elementId = contents[index].attributes[0].textContent;

                let uniqueID = elementId.match(/\d+/)[0];

                let questionText = $(`input[name="questions[${uniqueID}][question_text]"]`);

                questionText.removeClass('notValid')
                if (!questionText.val()) {
                    questionText.addClass('notValid').focus()
                    errorStatus++
                }

                let optionLength = 4;

                let hasCheck = false;

                for (let index = 1; index <= optionLength; index++) {

                    let questionOption = $(`input[name="questions[${uniqueID}][option_${index}][text]"]`);

                    questionOption.removeClass('notValid')

                    if (questionOption.length > 0 && !questionOption.val()) {
                        questionOption.addClass('notValid').focus()

                        errorStatus++
                    }

                    let questionCheck = $(`input[name="questions[${uniqueID}][option_${index}][is_correct]"]`)[0];

                    if (questionCheck?.checked) {
                        hasCheck = true
                    }
                }

                let questionRadioOne = $(`input[name="questions[${uniqueID}][correct_option]"]`)[0];
                let questionRadioTwo = $(`input[name="questions[${uniqueID}][correct_option]"]`)[1];

                if (questionRadioOne && questionRadioTwo) {

                    if (questionRadioOne?.checked || questionRadioTwo?.checked) {
                        hasCheck = true
                    }
                }

                $(`#${elementId}_options`).removeClass('notValid')
                if (!hasCheck) {
                    $(`#${elementId}_options`).addClass('notValid')
                    errorStatus++
                }

            }

            return errorStatus > 0 ? false : true;
        }
    </script>
@endpush