class ProstheticProduct {
  const ProstheticProduct({
    required this.id,
    required this.labTenantId,
    required this.name,
    required this.prostheticType,
    this.unitPrice,
    this.currency,
    this.isActive = true,
    this.description,
  });

  final String id;
  final String labTenantId;
  final String name;
  final String prostheticType;
  final double? unitPrice;
  final String? currency;
  final bool isActive;
  final String? description;

  factory ProstheticProduct.fromJson(Map<String, dynamic> j) {
    String? _str(dynamic v) { final s = v as String?; return (s == null || s.isEmpty) ? null : s; }
    return ProstheticProduct(
      id: j['id'] as String,
      labTenantId: j['lab_tenant_id'] as String,
      name: j['name'] as String,
      prostheticType: j['prosthetic_type'] as String,
      unitPrice: (j['unit_price'] as num?)?.toDouble(),
      currency: j['currency'] as String? ?? 'TRY',
      isActive: j['is_active'] as bool? ?? true,
      description: _str(j['description']),
    );
  }

  Map<String, dynamic> toJson() => {
        'lab_tenant_id': labTenantId,
        'name': name,
        'prosthetic_type': prostheticType,
        if (unitPrice != null) 'unit_price': unitPrice,
        'currency': currency ?? 'TRY',
        'is_active': isActive,
        if (description != null) 'description': description,
      };
}