@extends('layout.app')

@section('content')

<div class="pagetitle">
    <h1>Perbandingan Alternatif</h1>
    <nav>
        <ol class="breadcrumb">
            <li class="breadcrumb-item"><a href="{{ route('admindash') }}">Home</a></li>
            <li class="breadcrumb-item active"><a href="{{ route('alternatif.pilih') }}">Pemilihan Alternatif</a></li>
        </ol>
    </nav>
</div>

<section class="section">
    <div class="row">
        <div class="col-lg-12">

            @if(session('success'))
                <div class="alert alert-success">{{ session('success') }}</div>
            @endif

            <div class="card">
                <div class="card-body">
                    <h5 class="card-title">Pemilihan Alternatif</h5>

                    <form action="{{ route('alternatif.pilih') }}" method="POST">
                        @csrf
                        <div class="row">
                            @foreach ($makanans as $makanan)
                                <div class="col-md-4">
                                    <div class="form-check">
                                        <input class="form-check-input alternatif-checkbox" type="checkbox" name="alternatifs[]" value="{{ $makanan->id }}" id="alt{{ $makanan->id }}">
                                        <label class="form-check-label" for="alt{{ $makanan->id }}">
                                            {{ $makanan->nama }}
                                        </label>
                                    </div>
                                </div>
                            @endforeach
                        </div>
                        <div class="d-flex justify-content-end">
                            <button type="submit" class="btn btn-primary mt-3" id="submitBtn" disabled>Lanjut ke Perbandingan</button>
                        </div>
                    </form>

                    <hr class="my-4">

                    <h5 class="card-title">Data Semua Alternatif</h5>

                    <div class="row">
                        <div class="col-md-8">
                            {{-- Tabel --}}
                            <div class="table-responsive">
                                <table class="table table-bordered text-center">
                                    <thead class="table-light">
                                        <tr>
                                            <th>No</th>
                                            <th>Nama Makanan</th>
                                            <th>Lemak</th>
                                            <th>Natrium</th>
                                            <th>Energi</th>
                                            <th>Karbohidrat</th>
                                        </tr>
                                    </thead>
                                    <tbody>
                                        @foreach ($makanans as $index => $makanan)
                                            <tr>
                                                <td>{{ $index + 1 }}</td>
                                                <td>{{ $makanan->nama }}</td>
                                                <td>{{ $makanan->lemak }} g</td>
                                                <td>{{ $makanan->natrium }} mg</td>
                                                <td>{{ $makanan->energi }} kal</td>
                                                <td>{{ $makanan->karbohidrat }} g</td>
                                            </tr>
                                        @endforeach
                                    </tbody>
                                </table>
                            </div>
                        </div>

                        <div class="col-md-4">
                            {{-- Filter Kriteria --}}
                            <form method="GET" class="mb-3">
                                <div class="row align-items-end">
                                    <div class="col-md-12">
                                        <label for="sort" class="form-label">Urutkan berdasarkan kriteria:</label>
                                        <select class="form-select" name="sort" id="sort">
                                            <option value="">-- Pilih Kriteria --</option>
                                            <option value="lemak" {{ request('sort') == 'lemak' ? 'selected' : '' }}>Lemak</option>
                                            <option value="natrium" {{ request('sort') == 'natrium' ? 'selected' : '' }}>Natrium</option>
                                            <option value="energi" {{ request('sort') == 'energi' ? 'selected' : '' }}>Energi</option>
                                            <option value="karbohidrat" {{ request('sort') == 'karbohidrat' ? 'selected' : '' }}>Karbohidrat</option>
                                        </select>
                                    </div>
                                    <div class="col-md-12 mt-2">
                                        <button type="submit" class="btn btn-secondary w-100">Filter</button>
                                    </div>
                                </div>
                            </form>
                        </div>
                    </div>

                </div>
            </div>

        </div>
    </div>
</section>

@endsection

@push('scripts')
<script>
    document.addEventListener('DOMContentLoaded', function () {
        const checkboxes = document.querySelectorAll('.alternatif-checkbox');
        const maxAllowed = 6;
        const submitBtn = document.getElementById('submitBtn');

        function updateUI() {
            const checked = document.querySelectorAll('.alternatif-checkbox:checked');
            const checkedCount = checked.length;

            checkboxes.forEach(cb => {
                if (!cb.checked) {
                    cb.disabled = checkedCount >= maxAllowed;
                }
            });

            submitBtn.disabled = (checkedCount !== maxAllowed);
        }

        checkboxes.forEach(cb => {
            cb.addEventListener('change', updateUI);
        });
    });
</script>
@endpush