/// موجودیت‌های کاتالوگ فروشگاه (مستقل از JSON).
class CoinPackage {
  final String id;
  final String title;
  final int coins;
  final int vipDays;
  final int priceToman;
  final int bonusPct;
  const CoinPackage({
    required this.id,
    required this.title,
    required this.coins,
    required this.vipDays,
    required this.priceToman,
    required this.bonusPct,
  });
}

class TicketPackage {
  final String id;
  final String title;
  final int tickets;
  final int priceToman;
  const TicketPackage({
    required this.id,
    required this.title,
    required this.tickets,
    required this.priceToman,
  });
}

class CardSkin {
  final String id;
  final String title;
  final int priceCoins;
  const CardSkin(
      {required this.id, required this.title, required this.priceCoins});
}

class Booster {
  final String id;
  final String title;
  final int multiplier;
  final int hours;
  final int priceToman;
  const Booster({
    required this.id,
    required this.title,
    required this.multiplier,
    required this.hours,
    required this.priceToman,
  });
}

class VipPackage {
  final String id;
  final String title;
  final int months;
  final int priceToman;
  const VipPackage({
    required this.id,
    required this.title,
    required this.months,
    required this.priceToman,
  });
}

/// کلِ داده‌ی فروشگاه: کاتالوگ + کارت‌های متعلق به کاربر + کارت انتخابی.
class ShopData {
  final List<CoinPackage> coinPackages;
  final List<TicketPackage> ticketPackages;
  final List<CardSkin> cardSkins;
  final List<Booster> boosters;
  final List<VipPackage> vipPackages;
  final List<String> ownedCards;
  final String selectedCard;

  const ShopData({
    required this.coinPackages,
    required this.ticketPackages,
    required this.cardSkins,
    required this.boosters,
    required this.vipPackages,
    required this.ownedCards,
    required this.selectedCard,
  });

  bool owns(String cardId) => cardId == 'simple' || ownedCards.contains(cardId);
}