class AdminProduct {
  final int id;
  final String name;
  final String? canonicalName;
  final String? normalizedName;
  final int? categoryId;
  final String? categoryPath;

  const AdminProduct({
    required this.id,
    required this.name,
    this.canonicalName,
    this.normalizedName,
    this.categoryId,
    this.categoryPath,
  });

  String get displayName =>
      canonicalName != null && canonicalName!.trim().isNotEmpty
          ? canonicalName!
          : name;

  factory AdminProduct.fromJson(Map<String, dynamic> json) {
    final categoryRef = json['categoryRef'];
    final names = <String>[];
    dynamic current = categoryRef;
    while (current is Map<String, dynamic>) {
      final name = current['name']?.toString().trim();
      if (name != null && name.isNotEmpty) {
        names.insert(0, name);
      }
      current = current['parent'];
    }

    return AdminProduct(
      id: (json['id'] as num).toInt(),
      name: (json['name'] ?? '').toString(),
      canonicalName: json['canonicalName']?.toString(),
      normalizedName: json['normalizedName']?.toString(),
      categoryId: (json['categoryId'] as num?)?.toInt(),
      categoryPath: names.isEmpty ? null : names.join(' > '),
    );
  }
}