/// یک شخصیتِ آواتار (کازمتیک تصویری). owned یعنی قابلِ انتخاب.
class AvatarCharacter {
  final String id;
  final String title;
  final int priceCoins;
  final bool vip;
  final String img; // نامِ فایل: <id>.<ext> (برای ساختِ URL و انتخابِ رندرر)
  final bool owned;

  const AvatarCharacter({
    required this.id,
    required this.title,
    required this.priceCoins,
    required this.vip,
    required this.img,
    required this.owned,
  });

  factory AvatarCharacter.fromJson(Map<String, dynamic> j) => AvatarCharacter(
        id: (j['id'] ?? '') as String,
        title: (j['title'] ?? '') as String,
        priceCoins: (j['price_coins'] ?? 0) as int,
        vip: (j['vip'] ?? false) as bool,
        img: (j['img'] ?? '') as String,
        owned: (j['owned'] ?? false) as bool,
      );
}

/// کاتالوگِ شخصیت‌ها + شناسه‌ی شخصیتِ انتخابیِ کاربر (خالی ⇒ آواتارِ تصادفی).
class AvatarCatalog {
  final List<AvatarCharacter> avatars;
  final String selected;
  const AvatarCatalog({required this.avatars, required this.selected});
}