// Models
//
// EnakShop adalah toko online. Tahap ini baru katalog; keranjang dan checkout
// menyusul setelah API toko tersedia.
enum ShopCategory {
  frozen('Makanan Beku', '🥟'),
  sauce('Sambal & Bumbu', '🌶️'),
  coffee('Kopi & Minuman', '☕'),
  noodle('Mie & Ramen', '🍜'),
  snack('Camilan', '🍪'),
  merch('Merchandise', '🛍️'),
  hampers('Hampers', '🎁');

  const ShopCategory(this.label, this.emoji);

  final String label;
  final String emoji;
}

/// Label pojok kartu produk.
enum ShopTag {
  bestSeller('Terlaris'),
  newArrival('Baru');

  const ShopTag(this.label);

  final String label;
}

class ShopProduct {
  final String id;
  final String name;
  final ShopCategory category;
  final int price;

  /// Harga setelah diskon; `null` bila tidak sedang diskon.
  final int? discountPrice;
  final String emoji;

  /// Warna latar gambar produk, ARGB.
  final int tint;

  /// Berat atau isi, mis. "500 g" atau "Isi 25 butir".
  final String unit;
  final String description;

  /// Judul pilihan varian, mis. "Ukuran" atau "Level pedas".
  final String variantLabel;
  final List<String> variants;
  final int soldCount;
  final int stock;
  final ShopTag? tag;
  final DateTime addedAt;

  const ShopProduct({
    required this.id,
    required this.name,
    required this.category,
    required this.price,
    required this.emoji,
    required this.tint,
    required this.unit,
    required this.description,
    required this.soldCount,
    required this.stock,
    required this.addedAt,
    this.discountPrice,
    this.variantLabel = 'Varian',
    this.variants = const [],
    this.tag,
  });

  bool get isDiscounted => discountPrice != null;

  int get finalPrice => discountPrice ?? price;

  /// Persen potongan, dibulatkan.
  int get discountPercent =>
      isDiscounted ? ((price - discountPrice!) * 100 / price).round() : 0;
}

/// Banner promo di beranda toko; mengarah ke satu kategori.
class ShopPromo {
  final String id;
  final String title;
  final String subtitle;
  final ShopCategory category;

  /// Warna gradasi banner, ARGB.
  final List<int> gradient;

  const ShopPromo({
    required this.id,
    required this.title,
    required this.subtitle,
    required this.category,
    required this.gradient,
  });
}

// Sample Data
DateTime _daysAgo(int days) => DateTime.now().subtract(Duration(days: days));

/// Getter, bukan `final`, supaya perubahan data langsung terbaca saat hot
/// reload (variabel global yang sudah terisi tidak diisi ulang).
List<ShopPromo> get shopPromoSamples => const [
  ShopPromo(
    id: 'sp1',
    title: 'Diskon s.d. 20% Makanan Beku',
    subtitle: 'Stok bakso & dimsum di rumah',
    category: ShopCategory.frozen,
    gradient: [0xFFD90000, 0xFF990000],
  ),
  ShopPromo(
    id: 'sp2',
    title: 'Hampers Mulai Rp 299 Ribu',
    subtitle: 'Kirim rasa Nusantara untuk orang tersayang',
    category: ShopCategory.hampers,
    gradient: [0xFF43A047, 0xFF1B5E20],
  ),
  ShopPromo(
    id: 'sp3',
    title: 'Merchandise Diskon s.d. 15%',
    subtitle: 'Tumbler, kaos, dan tote bag Enaklo',
    category: ShopCategory.merch,
    gradient: [0xFFF59E0B, 0xFFC2410C],
  ),
];

List<ShopProduct> get shopSamples => [
  ShopProduct(
    id: 's1',
    name: 'Bakso Sapi Frozen Bakso 343',
    category: ShopCategory.frozen,
    price: 65000,
    discountPrice: 52000,
    emoji: '🍲',
    tint: 0xFFF6D5D0,
    unit: 'Isi 25 butir',
    variantLabel: 'Ukuran',
    variants: ['Isi 25 butir', 'Isi 50 butir'],
    description:
        'Bakso sapi resep Bakso 343, dibekukan segera setelah dibuat. Cukup '
        'rebus 5 menit. Tahan 3 bulan di freezer.',
    soldCount: 320,
    stock: 48,
    tag: ShopTag.bestSeller,
    addedAt: _daysAgo(60),
  ),
  ShopProduct(
    id: 's2',
    name: 'Dimsum Ayam Frozen',
    category: ShopCategory.frozen,
    price: 48000,
    emoji: '🥟',
    tint: 0xFFF3E6CF,
    unit: 'Isi 20 pcs',
    description:
        'Dimsum ayam udang dengan kulit tipis. Kukus 10 menit dari beku, '
        'sajikan dengan sambal.',
    soldCount: 85,
    stock: 30,
    tag: ShopTag.newArrival,
    addedAt: _daysAgo(5),
  ),
  ShopProduct(
    id: 's3',
    name: 'Sambal Woku Pedas',
    category: ShopCategory.sauce,
    price: 35000,
    discountPrice: 29000,
    emoji: '🌶️',
    tint: 0xFFFBDCC8,
    unit: '200 g',
    variantLabel: 'Level pedas',
    variants: ['Level 2', 'Level 3', 'Level 5'],
    description:
        'Sambal khas Woku Pedas dengan cabai, kemangi, dan rempah Manado. '
        'Tanpa pengawet, simpan di kulkas setelah dibuka.',
    soldCount: 540,
    stock: 120,
    tag: ShopTag.bestSeller,
    addedAt: _daysAgo(90),
  ),
  ShopProduct(
    id: 's4',
    name: 'Bumbu Rica-Rica Instan',
    category: ShopCategory.sauce,
    price: 18000,
    emoji: '🧂',
    tint: 0xFFF7E2C8,
    unit: '100 g',
    description:
        'Bumbu rica-rica siap pakai untuk 1 kg ayam atau ikan. Tinggal tumis '
        'dan masak bersama bahan utama.',
    soldCount: 140,
    stock: 75,
    addedAt: _daysAgo(40),
  ),
  ShopProduct(
    id: 's5',
    name: 'Kopi Tumulu House Blend',
    category: ShopCategory.coffee,
    price: 85000,
    emoji: '☕',
    tint: 0xFFE8DCCF,
    unit: '250 g',
    variantLabel: 'Gilingan',
    variants: ['Biji utuh', 'Bubuk halus', 'Bubuk kasar'],
    description:
        'Campuran arabika Gayo dan robusta Temanggung yang dipakai di Tumulu '
        'Coffee. Cocok untuk kopi susu maupun kopi tubruk.',
    soldCount: 410,
    stock: 64,
    tag: ShopTag.bestSeller,
    addedAt: _daysAgo(120),
  ),
  ShopProduct(
    id: 's6',
    name: 'Cold Brew Tumulu 1 Liter',
    category: ShopCategory.coffee,
    price: 75000,
    discountPrice: 65000,
    emoji: '🧋',
    tint: 0xFFE2D6CC,
    unit: '1 liter',
    description:
        'Kopi seduh dingin 18 jam, tinggal tuang ke es dan susu. Simpan di '
        'kulkas, habiskan dalam 7 hari.',
    soldCount: 95,
    stock: 20,
    addedAt: _daysAgo(20),
  ),
  ShopProduct(
    id: 's7',
    name: 'Ramen Kit Shoyu Ramenmulu',
    category: ShopCategory.noodle,
    price: 79000,
    discountPrice: 69000,
    emoji: '🍜',
    tint: 0xFFF5E1C8,
    unit: '2 porsi',
    description:
        'Mie ramen segar, kuah shoyu pekat, chashu, dan telur ajitama untuk '
        '2 porsi. Siap dalam 10 menit.',
    soldCount: 150,
    stock: 18,
    tag: ShopTag.newArrival,
    addedAt: _daysAgo(3),
  ),
  ShopProduct(
    id: 's8',
    name: 'Mie Ramen Kering',
    category: ShopCategory.noodle,
    price: 32000,
    emoji: '🍝',
    tint: 0xFFF4EBD3,
    unit: '500 g',
    description:
        'Mie ramen kering untuk 5 porsi, kenyal seperti mie segar. Rebus '
        '3 menit.',
    soldCount: 60,
    stock: 90,
    addedAt: _daysAgo(30),
  ),
  ShopProduct(
    id: 's9',
    name: 'Keripik Kulit Ikan Pedas',
    category: ShopCategory.snack,
    price: 28000,
    emoji: '🍘',
    tint: 0xFFF6E7C1,
    unit: '100 g',
    description:
        'Keripik kulit ikan renyah dengan bumbu woku pedas. Camilan pas '
        'teman nonton.',
    soldCount: 210,
    stock: 55,
    addedAt: _daysAgo(50),
  ),
  ShopProduct(
    id: 's10',
    name: 'Nastar Keju Premium',
    category: ShopCategory.snack,
    price: 95000,
    discountPrice: 85000,
    emoji: '🍪',
    tint: 0xFFF7E4B5,
    unit: 'Toples 500 g',
    description:
        'Nastar selai nanas homemade dengan taburan keju edam. Tahan 1 bulan '
        'dalam toples tertutup.',
    soldCount: 130,
    stock: 25,
    addedAt: _daysAgo(15),
  ),
  ShopProduct(
    id: 's11',
    name: 'Tumbler Enaklo 500 ml',
    category: ShopCategory.merch,
    price: 129000,
    emoji: '🥤',
    tint: 0xFFF3D3D3,
    unit: '500 ml',
    variantLabel: 'Warna',
    variants: ['Merah', 'Hitam', 'Krem'],
    description:
        'Tumbler stainless dua lapis yang menjaga minuman tetap dingin sampai '
        '12 jam. Tutup anti tumpah.',
    soldCount: 75,
    stock: 40,
    tag: ShopTag.bestSeller,
    addedAt: _daysAgo(70),
  ),
  ShopProduct(
    id: 's12',
    name: 'Kaos "Enak Lho!"',
    category: ShopCategory.merch,
    price: 119000,
    emoji: '👕',
    tint: 0xFFE9E9E9,
    unit: 'Katun combed 30s',
    variantLabel: 'Ukuran',
    variants: ['S', 'M', 'L', 'XL'],
    description:
        'Kaos katun yang adem dipakai seharian, dengan sablon "Enak Lho!" di '
        'bagian depan.',
    soldCount: 48,
    stock: 32,
    addedAt: _daysAgo(35),
  ),
  ShopProduct(
    id: 's13',
    name: 'Tote Bag Kanvas Enaklo',
    category: ShopCategory.merch,
    price: 90000,
    discountPrice: 76500,
    emoji: '🛍️',
    tint: 0xFFEDE3CF,
    unit: '38 × 42 cm',
    variantLabel: 'Warna',
    variants: ['Natural', 'Hitam'],
    description:
        'Tote bag kanvas tebal dengan kantong dalam. Cukup untuk laptop 14 '
        'inci.',
    soldCount: 66,
    stock: 3,
    tag: ShopTag.newArrival,
    addedAt: _daysAgo(8),
  ),
  ShopProduct(
    id: 's14',
    name: 'Hampers Rasa Nusantara',
    category: ShopCategory.hampers,
    price: 350000,
    discountPrice: 299000,
    emoji: '🎁',
    tint: 0xFFDCEBD6,
    unit: 'Isi 5 produk',
    description:
        'Sambal Woku Pedas, Kopi Tumulu House Blend, Nastar Keju Premium, '
        'Keripik Kulit Ikan Pedas, dan kartu ucapan dalam kotak kayu.',
    soldCount: 34,
    stock: 12,
    tag: ShopTag.newArrival,
    addedAt: _daysAgo(6),
  ),
];