class Etiqueta {
  final String hMaestro;
  final String hGlobal;
  final String? mrf;
  final String? ref;
  final String? nombreEs;
  final String? nombreEn;
  final String grupo;
  final bool activo;
  final int? bibliotecaId;

  Etiqueta({
    required this.hMaestro,
    required this.hGlobal,
    this.mrf,
    this.ref,
    this.nombreEs,
    this.nombreEn,
    required this.grupo,
    this.activo = true,
    this.bibliotecaId,
  });

  String get displayName => nombreEs ?? nombreEn ?? ref ?? hMaestro.substring(0, 8);

  String? get imagenUrl => mrf != null ? 'https://tzrtech.org/$mrf.png' : null;

  factory Etiqueta.fromJson(Map<String, dynamic> json) => Etiqueta(
        hMaestro: json['h_maestro'] as String,
        hGlobal: json['h_global'] as String,
        mrf: json['mrf'] as String?,
        ref: json['ref'] as String?,
        nombreEs: json['nombre_es'] as String?,
        nombreEn: json['nombre_en'] as String?,
        grupo: json['grupo'] as String? ?? 'default',
        activo: json['activo'] as bool? ?? true,
      );

  Map<String, dynamic> toMap() => {
        'h_maestro': hMaestro,
        'h_global': hGlobal,
        'mrf': mrf,
        'ref': ref,
        'nombre_es': nombreEs,
        'nombre_en': nombreEn,
        'grupo': grupo,
        'biblioteca_id': bibliotecaId,
      };
}