@extends('layouts.teacher.app')

@section('content')
<!-- Flatpickr CSS -->
<link rel="stylesheet" href="{{ asset('css/flatpickr.min.css') }}">

<style>
    .upload-card {
        border: none;
        border-radius: 12px;
        box-shadow: 0 2px 12px rgba(0,0,0,0.08);
        transition: transform 0.2s;
    }
    
    .upload-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    }
    
    .form-label-custom {
        font-weight: 600;
        color: #495057;
        margin-bottom: 0.5rem;
        font-size: 0.9rem;
    }
    
    .time-select {
        padding: 0.5rem;
        border: 1px solid #ced4da;
        border-radius: 6px;
        font-size: 0.95rem;
    }
    
    .time-select:focus {
        border-color: #0d6efd;
        outline: 0;
        box-shadow: 0 0 0 0.2rem rgba(13,110,253,.25);
    }
</style>

<div class="pagetitle">
    <h1>Permohonan Outing Pukal</h1>
    <nav>
        <ol class="breadcrumb">
            <li class="breadcrumb-item"><a href="{{ route('teacher.dashboard') }}">Utama</a></li>
            <li class="breadcrumb-item active">Permohonan Outing Pukal</li>
        </ol>
    </nav>
</div>

<section class="section">
    <div class="row justify-content-center">
        <div class="col-lg-8">
            <div class="card upload-card">
                <div class="card-body p-4">
                    <h5 class="card-title mb-4">
                        <i class="bi bi-people me-2"></i>Senarai Pelajar (Pukal)
                    </h5>

                    @if(session('success'))
                        <div class="alert alert-success alert-dismissible fade show" role="alert">
                            <i class="bi bi-check-circle me-2"></i>{{ session('success') }}
                            <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
                        </div>
                    @endif
                    @if(session('error'))
                        <div class="alert alert-danger alert-dismissible fade show" role="alert">
                            <i class="bi bi-exclamation-triangle me-2"></i>{{ session('error') }}
                            <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
                        </div>
                    @endif
                    @if($errors->any())
                        <div class="alert alert-danger alert-dismissible fade show" role="alert">
                            <ul class="mb-0">
                                @foreach($errors->all() as $error)
                                    <li>{{ $error }}</li>
                                @endforeach
                            </ul>
                            <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
                        </div>
                    @endif

                    <form action="{{ route('outing.processpukallist') }}" method="POST" id="bulkForm">
                        @csrf
                        
                        <!-- Kebenaran -->
                        <div class="mb-4">
                            <label class="form-label-custom">Kebenaran <span class="text-danger">*</span></label>
                            <select name="kebenaran_id" id="kebenaran_id" class="form-select" required>
                                <option value="">Pilih Kebenaran</option>
                                @foreach($kebenaran as $item)
                                    <option value="{{ $item->code_kebenaran }}">{{ $item->desc ?? $item->description ?? 'Item ' . $item->code_kebenaran }}</option>
                                @endforeach
                            </select>
                        </div>

                        <!-- Sub Kebenaran -->
                        @if(isset($subkebenaran) && count($subkebenaran) > 0)
                        <div class="mb-4">
                            <label class="form-label-custom">Sub Kebenaran (Pilihan)</label>
                            <select name="subkebenaran_id" id="subkebenaran_id" class="form-select">
                                <option value="">Pilih Sub Kebenaran</option>
                                @foreach($subkebenaran as $item)
                                    <option value="{{ $item->code_sub }}" data-kebenaran="{{ $item->code_kebenaran }}">{{ $item->desc ?? $item->description ?? 'Item ' . $item->code_sub }}</option>
                                @endforeach
                            </select>
                        </div>
                        @endif

                        <!-- Date Out -->
                        <div class="mb-4">
                            <label class="form-label-custom">Tarikh & Masa Keluar <span class="text-danger">*</span></label>
                            <input type="text" class="form-control" id="datetime_out" placeholder="Pilih tarikh & masa keluar" required readonly>
                            <input type="hidden" name="date_out" id="date_out">
                        </div>

                        <!-- Date In -->
                        <div class="mb-4">
                            <label class="form-label-custom">Tarikh & Masa Masuk <span class="text-danger">*</span></label>
                            <input type="text" class="form-control" id="datetime_in" placeholder="Pilih tarikh & masa masuk" required readonly>
                            <input type="hidden" name="date_in" id="date_in">
                        </div>

                        <!-- Student Group Radio Buttons -->
                        <div class="mb-4">
                            <label class="form-label-custom">Kumpulan Pelajar <span class="text-danger">*</span></label>
                            <div class="row">
                                @foreach($studentgroup as $group)
                                <div class="col-md-6 mb-2">
                                    <div class="form-check">
                                        <input class="form-check-input" type="radio" name="student_group" id="group_{{ $group->code }}" value="{{ $group->code }}" required>
                                        <label class="form-check-label" for="group_{{ $group->code }}">
                                            {{ $group->desc ?? $group->description ?? $group->code }}
                                        </label>
                                    </div>
                                </div>
                                @endforeach
                            </div>
                        </div>

                        <!-- Extra Filters: Tingkatan & Kelas -->
                        <div class="mb-4" id="div-tingkatan" style="display:none;">
                            <label class="form-label-custom">Tingkatan <span class="text-danger">*</span></label>
                            <select name="tingkatan" id="tingkatan" class="form-select">
                                <option value="">Pilih Tingkatan</option>
                                @for ($i = 1; $i <= 6; $i++)
                                    <option value="{{ $i }}">Tingkatan {{ $i }}</option>
                                @endfor
                            </select>
                        </div>

                        <div class="mb-4" id="div-kelas" style="display:none;">
                            <label class="form-label-custom">Kelas <span class="text-danger">*</span></label>
                            <select name="kelas_id" id="kelas_id" class="form-select">
                                <option value="">Pilih Kelas</option>
                                @foreach($kelas as $k)
                                    <option value="{{ $k->kelas }}">{{ $k->kelas }}</option>
                                @endforeach
                            </select>
                        </div>

                        <!-- Filter: Jantina -->
                        <div class="mb-4" id="div-jantina" style="display:none;">
                            <label class="form-label-custom">Jantina <span class="text-danger">*</span></label>
                            <select name="jantina_id" id="jantina_id" class="form-select">
                                <option value="">Pilih Jantina</option>
                                <option value="L">Lelaki</option>
                                <option value="P">Perempuan</option>
                            </select>
                        </div>

                        <!-- Filter: Homeroom -->
                        <div class="mb-4" id="div-homeroom" style="display:none;">
                            <label class="form-label-custom">Homeroom <span class="text-danger">*</span></label>
                            <select name="homeroom_id" id="homeroom_id" class="form-select">
                                <option value="">Pilih Homeroom</option>
                                @foreach($homeroom as $hroom)
                                    <option value="{{ $hroom->id }}">{{ $hroom->homeroom }}</option>
                                @endforeach
                            </select>
                        </div>

                        <div class="d-grid">
                            <button type="submit" class="btn btn-primary btn-lg">
                                <i class="bi bi-send me-2"></i>Hantar Permohonan
                            </button>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</section>

<!-- Flatpickr JS -->
<script src="{{ asset('js/flatpickr.min.js') }}"></script>

<script>
document.addEventListener('DOMContentLoaded', function() {
    // Initialize Flatpickr for Date Out
    const dateOutPicker = flatpickr("#datetime_out", {
        enableTime: true,
        dateFormat: "d-m-Y h:i K",
        time_24hr: false,
        minuteIncrement: 15,
        onChange: function(selectedDates, dateStr, instance) {
            if (selectedDates.length > 0) {
                // Format to Y-m-d H:i:s for backend
                const date = selectedDates[0];
                const year = date.getFullYear();
                const month = String(date.getMonth() + 1).padStart(2, '0');
                const day = String(date.getDate()).padStart(2, '0');
                const hours = String(date.getHours()).padStart(2, '0');
                const minutes = String(date.getMinutes()).padStart(2, '0');
                
                document.getElementById('date_out').value = `${year}-${month}-${day} ${hours}:${minutes}:00`;
                
                // Update Date In picker's minDate to be after Date Out
                dateInPicker.set('minDate', date);
            }
        }
    });

    // Initialize Flatpickr for Date In
    const dateInPicker = flatpickr("#datetime_in", {
        enableTime: true,
        dateFormat: "d-m-Y h:i K",
        time_24hr: false,
        minuteIncrement: 15,
        onChange: function(selectedDates, dateStr, instance) {
            if (selectedDates.length > 0) {
                // Format to Y-m-d H:i:s for backend
                const date = selectedDates[0];
                const year = date.getFullYear();
                const month = String(date.getMonth() + 1).padStart(2, '0');
                const day = String(date.getDate()).padStart(2, '0');
                const hours = String(date.getHours()).padStart(2, '0');
                const minutes = String(date.getMinutes()).padStart(2, '0');
                
                document.getElementById('date_in').value = `${year}-${month}-${day} ${hours}:${minutes}:00`;
            }
        }
    });

    // --- Kebenaran / Sub Kebenaran Filter Logic ---
    const kebenaranSelect = document.getElementById('kebenaran_id');
    const subKebenaranSelect = document.getElementById('subkebenaran_id');

    if (subKebenaranSelect) {
        const allSubOptions = Array.from(subKebenaranSelect.querySelectorAll('option')).slice(1); 
        
        function filterSubKebenaran() {
            const selectedKebenaran = kebenaranSelect.value;
            subKebenaranSelect.innerHTML = '<option value="">Pilih Sub Kebenaran</option>';
            
            if (!selectedKebenaran) {
                return;
            }

            allSubOptions.forEach(option => {
                if (option.dataset.kebenaran == selectedKebenaran) {
                    subKebenaranSelect.appendChild(option.cloneNode(true));
                }
            });
        }

        filterSubKebenaran();
        kebenaranSelect.addEventListener('change', filterSubKebenaran);
    }

    // --- Toggle Student Group Filters ---
    const divTingkatan = document.getElementById('div-tingkatan');
    const divKelas = document.getElementById('div-kelas');
    const selTingkatan = document.getElementById('tingkatan');
    const selKelas = document.getElementById('kelas_id');
    const radioButtons = document.querySelectorAll('input[name="student_group"]');
    const divJantina = document.getElementById('div-jantina');
    const selJantina = document.getElementById('jantina_id');
    const divHomeroom = document.getElementById('div-homeroom');
    const selHomeroom = document.getElementById('homeroom_id');

    function toggleStudentGroupInputs() {
        const selected = document.querySelector('input[name="student_group"]:checked');
        if (!selected) return;

        const val = selected.value;

        // Reset visibility and requirements first
        divTingkatan.style.display = 'none';
        divKelas.style.display = 'none';
        divJantina.style.display = 'none';
        divHomeroom.style.display = 'none';
        selTingkatan.removeAttribute('required');
        selKelas.removeAttribute('required');
        selJantina.removeAttribute('required');
        selHomeroom.removeAttribute('required');

        if (val === '102') { // PELAJAR MENGIKUT TINGKATAN
            divTingkatan.style.display = 'block';
            selTingkatan.setAttribute('required', 'required');
        } else if (val === '103') { // PELAJAR MENGIKUT KELAS
            divTingkatan.style.display = 'block';
            divKelas.style.display = 'block';
            selTingkatan.setAttribute('required', 'required');
            selKelas.setAttribute('required', 'required');
        } else if (val == '104') { // PELAJAR MENGIKUT JANTINA
            divJantina.style.display = 'block';
            selJantina.setAttribute('required', 'required');
        } else if (val == '105') { // PELAJAR MENGIKUT HOMEROOM/KELAB
            divHomeroom.style.display = 'block';
            selHomeroom.setAttribute('required', 'required');
        }
    }

    radioButtons.forEach(radio => {
        radio.addEventListener('change', toggleStudentGroupInputs);
    });
    
    // Run once on load just in case (e.g. back button)
    toggleStudentGroupInputs();
});
</script>
@endsection