class Allarme {
  final int id;
  final int sitoId;
  final String tipo;
  final String severita;
  final String stato;
  final String titolo;
  final String? descrizione;
  final double? valoreRilevato;
  final double? valoreSoglia;
  final String? unitaMisura;
  final Map<String, dynamic>? datiSensori;
  final DateTime timestampRilevamento;
  final DateTime createdAt;

  Allarme({
    required this.id,
    required this.sitoId,
    required this.tipo,
    required this.severita,
    required this.stato,
    required this.titolo,
    this.descrizione,
    this.valoreRilevato,
    this.valoreSoglia,
    this.unitaMisura,
    this.datiSensori,
    required this.timestampRilevamento,
    required this.createdAt,
  });

  factory Allarme.fromJson(Map<String, dynamic> json) {
    return Allarme(
      id: json['id'] as int,
      sitoId: json['sito_id'] as int,
      tipo: json['tipo'] as String,
      severita: json['severita'] as String,
      stato: json['stato'] as String,
      titolo: json['titolo'] as String,
      descrizione: json['descrizione'] as String?,
      valoreRilevato: json['valore_rilevato'] != null
          ? (json['valore_rilevato'] as num).toDouble()
          : null,
      valoreSoglia: json['valore_soglia'] != null
          ? (json['valore_soglia'] as num).toDouble()
          : null,
      unitaMisura: json['unita_misura'] as String?,
      datiSensori: json['dati_sensori'] as Map<String, dynamic>?,
      timestampRilevamento: DateTime.parse(json['timestamp_rilevamento'] as String),
      createdAt: DateTime.parse(json['created_at'] as String),
    );
  }

  bool get isCritical => severita == 'critical';
  bool get isWarning => severita == 'warning';
  bool get isRisolto => stato == 'risolto';

  String get tipoReadable {
    final labels = {
      'movimento_terreno': 'Movimento Terreno',
      'deformazione': 'Deformazione',
      'altro': 'Altro',
    };
    return labels[tipo] ?? tipo;
  }

  String get statoReadable {
    final labels = {
      'nuovo': 'Nuovo',
      'in_gestione': 'In Gestione',
      'risolto': 'Risolto',
    };
    return labels[stato] ?? stato;
  }

  String get severitaReadable {
    final labels = {
      'critical': 'CRITICO',
      'warning': 'AVVISO',
      'info': 'INFO',
    };
    return labels[severita] ?? severita.toUpperCase();
  }
}

class AllarmeListResponse {
  final int total;
  final List<Allarme> items;
  final int page;
  final int pageSize;

  AllarmeListResponse({
    required this.total,
    required this.items,
    required this.page,
    required this.pageSize,
  });

  factory AllarmeListResponse.fromJson(Map<String, dynamic> json) {
    return AllarmeListResponse(
      total: json['total'] as int,
      items: (json['items'] as List)
          .map((item) => Allarme.fromJson(item as Map<String, dynamic>))
          .toList(),
      page: json['page'] as int,
      pageSize: json['page_size'] as int,
    );
  }

  bool get hasMore => items.length < total;
}