class BusStopModel {
  final String id;
  final String name;
  final double lat;
  final double lng;
  final String? city;
  final String? address;
  final String? parentId;
  final String? side;
  final String stopType;
  final bool hasShelter;
  final bool hasSeating;
  final bool isAccessible;
  final DateTime? createdAt;
  final DateTime? updatedAt;

  // Route-specific fields (from route_stops junction table)
  final int? stopOrder;
  final int? travelTimeMinutes;
  final bool? isPickupPoint;
  final bool? isDropoffPoint;

  BusStopModel({
    required this.id,
    required this.name,
    required this.lat,
    required this.lng,
    this.city,
    this.address,
    this.parentId,
    this.side,
    this.stopType = 'regular',
    this.hasShelter = false,
    this.hasSeating = false,
    this.isAccessible = false,
    this.createdAt,
    this.updatedAt,
    this.stopOrder,
    this.travelTimeMinutes,
    this.isPickupPoint,
    this.isDropoffPoint,
  });

  factory BusStopModel.fromJson(Map<String, dynamic> json) {
    return BusStopModel(
      id: json['id']?.toString() ?? '',
      name: json['name']?.toString() ?? '',
      lat: double.tryParse(json['lat']?.toString() ?? '0') ?? 0.0,
      lng: double.tryParse(json['lng']?.toString() ?? '0') ?? 0.0,
      city: json['city']?.toString(),
      address: json['address']?.toString(),
      parentId: json['parent_id']?.toString(),
      side: json['side']?.toString(),
      stopType: json['stop_type']?.toString() ?? 'regular',
      hasShelter: json['has_shelter'] == true,
      hasSeating: json['has_seating'] == true,
      isAccessible: json['is_accessible'] == true,
      createdAt:
          json['created_at'] != null
              ? DateTime.tryParse(json['created_at'].toString())
              : null,
      updatedAt:
          json['updated_at'] != null
              ? DateTime.tryParse(json['updated_at'].toString())
              : null,
      stopOrder:
          json['stop_order'] != null
              ? int.tryParse(json['stop_order'].toString())
              : null,
      travelTimeMinutes:
          json['travel_time_minutes'] != null
              ? int.tryParse(json['travel_time_minutes'].toString())
              : null,
      isPickupPoint: json['is_pickup_point'] == true,
      isDropoffPoint: json['is_dropoff_point'] == true,
    );
  }

  Map<String, dynamic> toJson() {
    return {
      'id': id,
      'name': name,
      'lat': lat,
      'lng': lng,
      'city': city,
      'address': address,
      'parent_id': parentId,
      'side': side,
      'stop_type': stopType,
      'has_shelter': hasShelter,
      'has_seating': hasSeating,
      'is_accessible': isAccessible,
      'created_at': createdAt?.toIso8601String(),
      'updated_at': updatedAt?.toIso8601String(),
      'stop_order': stopOrder,
      'travel_time_minutes': travelTimeMinutes,
      'is_pickup_point': isPickupPoint,
      'is_dropoff_point': isDropoffPoint,
    };
  }

  // Helper getters
  String get displayName => name;

  String get fullAddress {
    if (address != null && address!.isNotEmpty) {
      return city != null ? '$address, $city' : address!;
    }
    return city ?? 'Ubicación desconocida';
  }

  String get stopTypeDisplay {
    switch (stopType) {
      case 'terminal':
        return 'Terminal';
      case 'express_only':
        return 'Solo Express';
      case 'regular':
      default:
        return 'Parada Regular';
    }
  }

  List<String> get amenities {
    List<String> amenityList = [];
    if (hasShelter) amenityList.add('Refugio');
    if (hasSeating) amenityList.add('Asientos');
    if (isAccessible) amenityList.add('Accesible');
    return amenityList;
  }

  String get amenitiesText {
    final amenityList = amenities;
    if (amenityList.isEmpty) return 'Sin servicios especiales';
    return amenityList.join(', ');
  }

  bool get isTerminal => stopType == 'terminal';
  bool get isExpressOnly => stopType == 'express_only';

  String get travelTimeText {
    if (travelTimeMinutes != null && travelTimeMinutes! > 0) {
      return '${travelTimeMinutes} min';
    }
    return 'N/A';
  }

  BusStopModel copyWith({
    String? id,
    String? name,
    double? lat,
    double? lng,
    String? city,
    String? address,
    String? parentId,
    String? side,
    String? stopType,
    bool? hasShelter,
    bool? hasSeating,
    bool? isAccessible,
    DateTime? createdAt,
    DateTime? updatedAt,
    int? stopOrder,
    int? travelTimeMinutes,
    bool? isPickupPoint,
    bool? isDropoffPoint,
  }) {
    return BusStopModel(
      id: id ?? this.id,
      name: name ?? this.name,
      lat: lat ?? this.lat,
      lng: lng ?? this.lng,
      city: city ?? this.city,
      address: address ?? this.address,
      parentId: parentId ?? this.parentId,
      side: side ?? this.side,
      stopType: stopType ?? this.stopType,
      hasShelter: hasShelter ?? this.hasShelter,
      hasSeating: hasSeating ?? this.hasSeating,
      isAccessible: isAccessible ?? this.isAccessible,
      createdAt: createdAt ?? this.createdAt,
      updatedAt: updatedAt ?? this.updatedAt,
      stopOrder: stopOrder ?? this.stopOrder,
      travelTimeMinutes: travelTimeMinutes ?? this.travelTimeMinutes,
      isPickupPoint: isPickupPoint ?? this.isPickupPoint,
      isDropoffPoint: isDropoffPoint ?? this.isDropoffPoint,
    );
  }

  @override
  String toString() {
    return 'BusStopModel(id: $id, name: $name, city: $city, stopType: $stopType)';
  }

  @override
  bool operator ==(Object other) {
    if (identical(this, other)) return true;
    return other is BusStopModel && other.id == id;
  }

  @override
  int get hashCode => id.hashCode;
}