class MenuItem {
  final int itemId;
  final int categoryId;
  final String categoryName;
  final String name;
  final String description;
  final int parentItemId;
  final double price;
  final bool isActive;
  final bool isCheckedByDefault;
  final bool requiresChildSelection;
  final int maxNumSelectionReq;
  final bool isCollapsible;
  final int sortOrder;

  const MenuItem({
    required this.itemId,
    required this.categoryId,
    required this.categoryName,
    required this.name,
    required this.description,
    required this.parentItemId,
    required this.price,
    required this.isActive,
    required this.isCheckedByDefault,
    required this.requiresChildSelection,
    required this.maxNumSelectionReq,
    required this.isCollapsible,
    required this.sortOrder,
  });

  factory MenuItem.fromJson(Map<String, dynamic> json) {
    return MenuItem(
      itemId: (json["ItemID"] ?? json["itemid"] as num?)?.toInt() ?? 0,
      categoryId: (json["ItemCategoryID"] ?? json["itemcategoryid"] as num?)?.toInt() ?? 0,
      categoryName: (json["ItemCategoryName"] ?? json["itemcategoryname"] as String?) ?? "",
      name: (json["ItemName"] ?? json["itemname"] as String?) ?? "",
      description: (json["ItemDescription"] ?? json["itemdescription"] as String?) ?? "",
      parentItemId: (json["ItemParentItemID"] ?? json["itemparentitemid"] as num?)?.toInt() ?? 0,
      price: (json["ItemPrice"] ?? json["itemprice"] as num?)?.toDouble() ?? 0.0,
      isActive: _parseBool(json["ItemIsActive"] ?? json["itemisactive"]),
      isCheckedByDefault: _parseBool(json["ItemIsCheckedByDefault"] ?? json["itemischeckedbydefault"]),
      requiresChildSelection: _parseBool(json["ItemRequiresChildSelection"] ?? json["itemrequireschildselection"]),
      maxNumSelectionReq: (json["ItemMaxNumSelectionReq"] ?? json["itemmaxnumselectionreq"] as num?)?.toInt() ?? 0,
      isCollapsible: _parseBool(json["ItemIsCollapsible"] ?? json["itemiscollapsible"]),
      sortOrder: (json["ItemSortOrder"] ?? json["itemsortorder"] as num?)?.toInt() ?? 0,
    );
  }

  static bool _parseBool(dynamic value) {
    if (value == null) return false;
    if (value is bool) return value;
    if (value is num) return value != 0;
    if (value is String) {
      final lower = value.toLowerCase();
      return lower == "true" || lower == "1";
    }
    return false;
  }

  bool get isRootItem => parentItemId == 0;
  bool get isModifier => parentItemId != 0;
}