class Pack {
  final int? id;
  final String nombre;
  final String icono;
  final List<String> tags;

  Pack({
    this.id,
    required this.nombre,
    this.icono = '📦',
    required this.tags,
  });

  factory Pack.fromMap(Map<String, dynamic> map) => Pack(
        id: map['id'] as int?,
        nombre: map['nombre'] as String,
        icono: map['icono'] as String? ?? '📦',
        tags: (map['tags'] as String).split(',').where((t) => t.isNotEmpty).toList(),
      );

  Map<String, dynamic> toMap() => {
        if (id != null) 'id': id,
        'nombre': nombre,
        'icono': icono,
        'tags': tags.join(','),
      };

  int get tagCount => tags.length;
}