class TabItemPurchase {
  final String id;
  final String tabItemId;
  final DateTime purchasedAt;
  final DateTime? removedAt;

  const TabItemPurchase({
    required this.id,
    required this.tabItemId,
    required this.purchasedAt,
    this.removedAt,
  });

  bool get isRemoved => removedAt != null;

  @override
  bool operator ==(Object other) =>
      identical(this, other) ||
      other is TabItemPurchase &&
          id == other.id &&
          tabItemId == other.tabItemId &&
          purchasedAt == other.purchasedAt &&
          removedAt == other.removedAt;

  @override
  int get hashCode => Object.hash(id, tabItemId, purchasedAt, removedAt);
}