@extends('layouts.content')

@section('content')
    <style>
        /* PERBAIKAN: Sembunyikan footer hanya di halaman ini untuk versi HP */
        @media (max-width: 768px) {
            footer {
                display: none !important;
            }
        }
    </style>

    <main class="container py-3 py-md-5 px-3 px-md-4" style="max-width: 1280px;">
        <div class="mb-4">
            <h1 class="cart-headline-font text-primary-custom" style="font-size: 1.8rem;">Keranjang Belanja</h1>
            <p class="text-secondary-emphasis" style="color: var(--on-surface-variant);">
                Pilih produk, atur jumlah, atau hapus item
            </p>
        </div>

        <div class="row g-4">
            <div class="col-lg-8 cart-products-container">
                @php
                    $totalPrice = $carts->sum(function ($cart) {
                        return $cart->quantity * $cart->package->price;
                    });

                    // Ekstensi file gambar yang valid
                    $photoExtensions = ['jpg', 'jpeg', 'png', 'webp', 'gif', 'heic'];
                @endphp

                @forelse($carts as $cart)
                    @php
                        $subtotal = $cart->quantity * $cart->package->price;
                        $product = $cart->package->product;

                        // 1. Cari media utama (is_main = true)
                        $mainMedia = $product->media->firstWhere('is_main', true);
                        $displayPhoto = null;

                        // 2. Cek validasi format foto pada media utama
                        if ($mainMedia) {
                            $ext = strtolower(pathinfo($mainMedia->file_url, PATHINFO_EXTENSION));
                            if (in_array($ext, $photoExtensions)) {
                                $displayPhoto = $mainMedia;
                            }
                        }

                        // 3. Jika media utama tidak ada ATAU berupa video, cari media pertama lain yang berformat foto
                        if (!$displayPhoto) {
                            $displayPhoto = $product->media->first(function ($mediaItem) use ($photoExtensions) {
                                $ext = strtolower(pathinfo($mediaItem->file_url, PATHINFO_EXTENSION));
                                return in_array($ext, $photoExtensions);
                            });
                        }

                        // 4. Tentukan URL akhir (Gunakan placeholder jika produk hanya memiliki video atau tanpa media)
                        $photoUrl = $displayPhoto
                            ? $displayPhoto->file_url
                            : asset('assets/img/selada.png');
                    @endphp

                    <div class="cart-product-card bg-white border rounded-4 p-3 p-md-4 mb-3 position-relative">

                        <form action="{{ route('cart.destroy', $cart->cart_id) }}" method="POST"
                            class="d-inline position-absolute" style="top: 0; right: 0; z-index: 10;">
                            @csrf
                            <button type="submit" class="cart-delete-btn" aria-label="Hapus">
                                <i class="bi bi-trash3"></i>
                            </button>
                        </form>

                        <div class="row align-items-center g-3">
                            <div class="col-auto">
                                <input type="checkbox" class="cart-checkbox product-select"
                                    data-subtotal="{{ $subtotal }}" checked>
                            </div>
                            <div class="col-3 col-md-2">
                                <img src="{{ $photoUrl }}" alt="{{ $product->product_name }}"
                                    class="img-fluid rounded-3" style="aspect-ratio:1/1; object-fit:cover; width:100%;">
                            </div>

                            <div class="col-7 col-md-5">
                                <h6 class="fw-bold mb-0 text-truncate" style="max-width: 90%;">
                                    {{ $product->product_name }}
                                </h6>
                                <p class="small text-secondary mb-1">{{ $cart->package->weight_in_kg }} Kg</p>
                                <span class="fw-bold text-primary-custom">Rp
                                    {{ number_format($cart->package->price, 0, ',', '.') }}
                                </span>
                            </div>

                            <div class="col-6 col-md-2 text-md-center mt-2 mt-md-0">
                                <div
                                    class="d-flex align-items-center justify-content-start justify-content-md-center gap-1">
                                    <form action="{{ route('cart.update', $cart->cart_id) }}" method="POST"
                                        class="m-0 p-0 d-inline">
                                        @csrf
                                        @method('PATCH')
                                        <input type="hidden" name="quantity" value="{{ $cart->quantity - 1 }}">
                                        <button type="submit" class="cart-qty-btn-static border-0 bg-transparent p-0"
                                            {{ $cart->quantity <= 1 ? 'disabled' : '' }}>
                                            <i class="bi bi-dash"></i>
                                        </button>
                                    </form>

                                    <span class="fw-semibold text-center" style="min-width: 32px;">
                                        {{ $cart->quantity }}
                                    </span>

                                    <form action="{{ route('cart.update', $cart->cart_id) }}" method="POST"
                                        class="m-0 p-0 d-inline">
                                        @csrf
                                        @method('PATCH')
                                        <input type="hidden" name="quantity" value="{{ $cart->quantity + 1 }}">
                                        <button type="submit" class="cart-qty-btn-static border-0 bg-transparent p-0"
                                            {{ $cart->quantity >= $cart->package->stock ? 'disabled' : '' }}>
                                            <i class="bi bi-plus"></i>
                                        </button>
                                    </form>
                                </div>
                            </div>
                            <div class="col-5 col-md-2 text-end mt-2 mt-md-0">
                                <div class="small text-secondary" style="font-size: 0.75rem;">Subtotal</div>
                                <div class="fw-bold text-primary-custom">Rp {{ number_format($subtotal, 0, ',', '.') }}
                                </div>
                            </div>
                        </div>
                    </div>
                @empty
                    <div class="bg-error-container rounded-4 p-5 text-center">
                        <i class="bi bi-bag-heart fs-1 text-primary-custom"></i>
                        <h5 class="mt-3 fw-semibold">Keranjang kosong</h5>
                        <p class="text-secondary">Yuk, tambah produk segar dari Tanjoeng Farm.</p>
                        <a href="{{ url('product-catalog') }}"
                            class="btn btn-sm rounded-pill px-4 mt-2 text-decoration-none"
                            style="background: var(--secondary); color: white;">Lihat Produk</a>
                    </div>
                @endforelse
            </div>

            <div class="col-lg-4 cart-summary-desktop">
                <div class="bg-white border rounded-4 p-4 cart-sticky-top">
                    <div class="text-center mb-4">
                        <div class="small text-secondary text-uppercase">Total (Item Terpilih)</div>
                        <div id="total-desktop" class="cart-price-font text-primary-custom display-6 fw-bold">Rp
                            {{ number_format($totalPrice ?? 0, 0, ',', '.') }}
                        </div>
                    </div>
                    <button class="btn btn-primary-custom w-100 py-3 rounded-3 fw-semibold" type="button" onclick="goToCheckout()">Lanjut ke Pembayaran</button>


                    <a href="{{ url('product-catalog') }}"
                        class="btn btn-outline-secondary-custom w-100 mt-3 py-2 rounded-3 fw-semibold text-center text-decoration-none d-block">
                        Kembali Belanja
                    </a>

                    <div class="mt-4 pt-2 d-flex gap-2 justify-content-center align-items-center border-top pt-3">
                        <i class="bi bi-shield-check" style="color: var(--secondary);"></i>
                        <small class="text-secondary">Kesegaran 100% & pembayaran aman</small>
                    </div>
                </div>
            </div>
        </div>
    </main>

    <div class="cart-summary-mobile cart-summary-fixed-mobile bg-white">
        <div class="container px-3">
            <div class="d-flex justify-content-between align-items-center mb-3">
                <span class="small text-secondary text-uppercase">Total</span>
                <span id="total-mobile" class="cart-price-font text-primary-custom fw-bold fs-4">Rp
                    {{ number_format($totalPrice ?? 0, 0, ',', '.') }}
                </span>
            </div>
            <div class="d-flex gap-2">
                <button class="btn btn-primary-custom flex-fill py-2 rounded-3 fw-semibold" onclick="goToCheckout()">Bayar</button>

                <a href="{{ url('product-catalog') }}"
                    class="btn btn-outline-secondary-custom flex-fill py-2 rounded-3 fw-semibold text-center text-decoration-none d-block">
                    Kembali
                </a>
            </div>
            <div class="d-flex justify-content-center align-items-center gap-2 mt-2 pb-1">
                <i class="bi bi-shield-check" style="color: var(--secondary); font-size: 0.8rem;"></i>
                <small class="text-secondary">Pembayaran aman</small>
            </div>
        </div>
    </div>

    <script>
        function goToCheckout(){
            const checkboxes = document.querySelectorAll('.product-select');
            const selectedCartIds = [];
            checkboxes.forEach(cb => {
                if(cb.checked){
                    const card = cb.closest('.cart-product-card');
                    // cart_id ada di form remove/update, kita cari parent terdekat
                    const removeForm = card ? card.querySelector('form[action*="cart/remove"]') : null;
                    if(removeForm){
                        const action = removeForm.getAttribute('action');
                        const match = action.match(/cart\/remove\/(\d+)/);
                        if(match) selectedCartIds.push(match[1]);
                    }
                }
            });

            if(selectedCartIds.length === 0){
                alert('Pilih produk yang ingin dibeli terlebih dahulu.');
                return;
            }

            const url = new URL('{{ route('checkout.show') }}', window.location.origin);
            url.searchParams.set('source', 'cart');
            selectedCartIds.forEach(id => url.searchParams.append('cart_ids[]', id));
            window.location.href = url.toString();
        }

        document.addEventListener('DOMContentLoaded', function() {
            const checkboxes = document.querySelectorAll('.product-select');
            const totalDesktop = document.getElementById('total-desktop');
            const totalMobile = document.getElementById('total-mobile');


            function formatRupiah(number) {
                return 'Rp ' + number.toLocaleString('id-ID');
            }

            function calculateTotal() {
                let total = 0;
                checkboxes.forEach(checkbox => {
                    if (checkbox.checked) {
                        total += parseFloat(checkbox.getAttribute('data-subtotal'));
                    }
                });

                if (totalDesktop) totalDesktop.textContent = formatRupiah(total);
                if (totalMobile) totalMobile.textContent = formatRupiah(total);
            }

            checkboxes.forEach(checkbox => {
                checkbox.addEventListener('change', function() {
                    calculateTotal();
                });
            });
        });
    </script>
@endsection