class MotorcycleYear {
  final int year;
  MotorcycleYear(this.year);

  @override
  bool operator ==(Object other) =>
      identical(this, other) ||
      other is MotorcycleYear &&
          runtimeType == other.runtimeType &&
          year == other.year;

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

class MotorcycleMake {
  final String id;
  final String name;

  MotorcycleMake({required this.id, required this.name});

  factory MotorcycleMake.fromJson(Map<String, dynamic> json) {
    return MotorcycleMake(
      id: json['id']?.toString() ?? json['MakeId']?.toString() ?? '',
      name: json['name']?.toString() ?? json['MakeName']?.toString() ?? '',
    );
  }

  Map<String, dynamic> toJson() => {'id': id, 'name': name};
}

class MotorcycleModel {
  final String id;
  final String name;
  final String makeId;
  final int? year;

  MotorcycleModel({
    required this.id,
    required this.name,
    required this.makeId,
    this.year,
  });

  factory MotorcycleModel.fromJson(Map<String, dynamic> json) {
    return MotorcycleModel(
      id: json['id']?.toString() ?? json['Model_ID']?.toString() ?? json['Model_Id']?.toString() ?? '',
      name: json['name']?.toString() ?? json['Model_Name']?.toString() ?? '',
      makeId: json['makeId']?.toString() ?? json['Make_ID']?.toString() ?? '',
      year: json['year'] as int?,
    );
  }

  Map<String, dynamic> toJson() => {
        'id': id,
        'name': name,
        'makeId': makeId,
        'year': year,
      };
}

class MotorcycleVariant {
  final String id;
  final String name;

  MotorcycleVariant({required this.id, required this.name});

  factory MotorcycleVariant.fromJson(Map<String, dynamic> json) {
    return MotorcycleVariant(
      id: json['id']?.toString() ?? '',
      name: json['name']?.toString() ?? '',
    );
  }

  Map<String, dynamic> toJson() => {'id': id, 'name': name};
}

class MotorcycleSelection {
  final int year;
  final String makeId;
  final String makeName;
  final String modelId;
  final String modelName;
  final String? variantId;
  final String? variantName;

  MotorcycleSelection({
    required this.year,
    required this.makeId,
    required this.makeName,
    required this.modelId,
    required this.modelName,
    this.variantId,
    this.variantName,
  });

  String get displayName {
    final base = '$year $makeName $modelName';
    if (variantName != null && variantName!.isNotEmpty) {
      return '$base $variantName';
    }
    return base;
  }

  Map<String, dynamic> toJson() => {
        'year': year,
        'makeId': makeId,
        'makeName': makeName,
        'modelId': modelId,
        'modelName': modelName,
        'variantId': variantId,
        'variantName': variantName,
      };

  factory MotorcycleSelection.fromJson(Map<String, dynamic> json) {
    return MotorcycleSelection(
      year: json['year'] as int,
      makeId: json['makeId'] as String,
      makeName: json['makeName'] as String,
      modelId: json['modelId'] as String,
      modelName: json['modelName'] as String,
      variantId: json['variantId'] as String?,
      variantName: json['variantName'] as String?,
    );
  }
}

class MotorcycleSpecification {
  // Basic
  final int year;
  final String manufacturer;
  final String model;
  final String? variant;
  final String? category;
  final String? marketRegion;

  // Engine
  final double? displacementCc;
  final String? engineConfiguration;
  final int? cylinderCount;
  final double? boreMm;
  final double? strokeMm;
  final String? compressionRatio;
  final String? coolingSystem;
  final String? fuelSystem;
  final String? fuelType;
  final String? valveConfiguration;
  final double? horsepower;
  final int? horsepowerRpm;
  final double? torqueLbFt;
  final int? torqueRpm;
  final int? redlineRpm;

  // Transmission
  final String? transmissionType;
  final int? gearCount;
  final String? finalDrive;

  // Weight & Dimensions
  final double? wetWeightLbs;
  final double? dryWeightLbs;
  final double? seatHeightInches;
  final double? wheelbaseInches;
  final double? lengthInches;
  final double? widthInches;
  final double? heightInches;

  // Fuel
  final double? fuelCapacityGallons;
  final double? fuelEconomyMpg;
  final double? estimatedRangeMiles;

  // Chassis & Brakes & Wheels
  final String? frameType;
  final String? frontSuspension;
  final String? rearSuspension;
  final String? frontBrake;
  final String? rearBrake;
  final String? absType;
  final String? frontTireSize;
  final String? rearTireSize;

  // Performance claims
  final double? claimedTopSpeedMph;
  final double? claimedZeroToSixtySec;
  final double? claimedQuarterMileSec;

  // Metadata
  final String? source;
  final String? sourceUrl;
  final DateTime? lastUpdated;

  MotorcycleSpecification({
    required this.year,
    required this.manufacturer,
    required this.model,
    this.variant,
    this.category,
    this.marketRegion,
    this.displacementCc,
    this.engineConfiguration,
    this.cylinderCount,
    this.boreMm,
    this.strokeMm,
    this.compressionRatio,
    this.coolingSystem,
    this.fuelSystem,
    this.fuelType,
    this.valveConfiguration,
    this.horsepower,
    this.horsepowerRpm,
    this.torqueLbFt,
    this.torqueRpm,
    this.redlineRpm,
    this.transmissionType,
    this.gearCount,
    this.finalDrive,
    this.wetWeightLbs,
    this.dryWeightLbs,
    this.seatHeightInches,
    this.wheelbaseInches,
    this.lengthInches,
    this.widthInches,
    this.heightInches,
    this.fuelCapacityGallons,
    this.fuelEconomyMpg,
    this.estimatedRangeMiles,
    this.frameType,
    this.frontSuspension,
    this.rearSuspension,
    this.frontBrake,
    this.rearBrake,
    this.absType,
    this.frontTireSize,
    this.rearTireSize,
    this.claimedTopSpeedMph,
    this.claimedZeroToSixtySec,
    this.claimedQuarterMileSec,
    this.source,
    this.sourceUrl,
    this.lastUpdated,
  });

  Map<String, dynamic> toJson() => {
        'year': year,
        'manufacturer': manufacturer,
        'model': model,
        'variant': variant,
        'category': category,
        'marketRegion': marketRegion,
        'displacementCc': displacementCc,
        'engineConfiguration': engineConfiguration,
        'cylinderCount': cylinderCount,
        'boreMm': boreMm,
        'strokeMm': strokeMm,
        'compressionRatio': compressionRatio,
        'coolingSystem': coolingSystem,
        'fuelSystem': fuelSystem,
        'fuelType': fuelType,
        'valveConfiguration': valveConfiguration,
        'horsepower': horsepower,
        'horsepowerRpm': horsepowerRpm,
        'torqueLbFt': torqueLbFt,
        'torqueRpm': torqueRpm,
        'redlineRpm': redlineRpm,
        'transmissionType': transmissionType,
        'gearCount': gearCount,
        'finalDrive': finalDrive,
        'wetWeightLbs': wetWeightLbs,
        'dryWeightLbs': dryWeightLbs,
        'seatHeightInches': seatHeightInches,
        'wheelbaseInches': wheelbaseInches,
        'lengthInches': lengthInches,
        'widthInches': widthInches,
        'heightInches': heightInches,
        'fuelCapacityGallons': fuelCapacityGallons,
        'fuelEconomyMpg': fuelEconomyMpg,
        'estimatedRangeMiles': estimatedRangeMiles,
        'frameType': frameType,
        'frontSuspension': frontSuspension,
        'rearSuspension': rearSuspension,
        'frontBrake': frontBrake,
        'rearBrake': rearBrake,
        'absType': absType,
        'frontTireSize': frontTireSize,
        'rearTireSize': rearTireSize,
        'claimedTopSpeedMph': claimedTopSpeedMph,
        'claimedZeroToSixtySec': claimedZeroToSixtySec,
        'claimedQuarterMileSec': claimedQuarterMileSec,
        'source': source,
        'sourceUrl': sourceUrl,
        'lastUpdated': lastUpdated?.toIso8601String(),
      };

  factory MotorcycleSpecification.fromJson(Map<String, dynamic> json) {
    return MotorcycleSpecification(
      year: json['year'] as int,
      manufacturer: json['manufacturer'] as String,
      model: json['model'] as String,
      variant: json['variant'] as String?,
      category: json['category'] as String?,
      marketRegion: json['marketRegion'] as String?,
      displacementCc: (json['displacementCc'] as num?)?.toDouble(),
      engineConfiguration: json['engineConfiguration'] as String?,
      cylinderCount: json['cylinderCount'] as int?,
      boreMm: (json['boreMm'] as num?)?.toDouble(),
      strokeMm: (json['strokeMm'] as num?)?.toDouble(),
      compressionRatio: json['compressionRatio'] as String?,
      coolingSystem: json['coolingSystem'] as String?,
      fuelSystem: json['fuelSystem'] as String?,
      fuelType: json['fuelType'] as String?,
      valveConfiguration: json['valveConfiguration'] as String?,
      horsepower: (json['horsepower'] as num?)?.toDouble(),
      horsepowerRpm: json['horsepowerRpm'] as int?,
      torqueLbFt: (json['torqueLbFt'] as num?)?.toDouble(),
      torqueRpm: json['torqueRpm'] as int?,
      redlineRpm: json['redlineRpm'] as int?,
      transmissionType: json['transmissionType'] as String?,
      gearCount: json['gearCount'] as int?,
      finalDrive: json['finalDrive'] as String?,
      wetWeightLbs: (json['wetWeightLbs'] as num?)?.toDouble(),
      dryWeightLbs: (json['dryWeightLbs'] as num?)?.toDouble(),
      seatHeightInches: (json['seatHeightInches'] as num?)?.toDouble(),
      wheelbaseInches: (json['wheelbaseInches'] as num?)?.toDouble(),
      lengthInches: (json['lengthInches'] as num?)?.toDouble(),
      widthInches: (json['widthInches'] as num?)?.toDouble(),
      heightInches: (json['heightInches'] as num?)?.toDouble(),
      fuelCapacityGallons: (json['fuelCapacityGallons'] as num?)?.toDouble(),
      fuelEconomyMpg: (json['fuelEconomyMpg'] as num?)?.toDouble(),
      estimatedRangeMiles: (json['estimatedRangeMiles'] as num?)?.toDouble(),
      frameType: json['frameType'] as String?,
      frontSuspension: json['frontSuspension'] as String?,
      rearSuspension: json['rearSuspension'] as String?,
      frontBrake: json['frontBrake'] as String?,
      rearBrake: json['rearBrake'] as String?,
      absType: json['absType'] as String?,
      frontTireSize: json['frontTireSize'] as String?,
      rearTireSize: json['rearTireSize'] as String?,
      claimedTopSpeedMph: (json['claimedTopSpeedMph'] as num?)?.toDouble(),
      claimedZeroToSixtySec: (json['claimedZeroToSixtySec'] as num?)?.toDouble(),
      claimedQuarterMileSec: (json['claimedQuarterMileSec'] as num?)?.toDouble(),
      source: json['source'] as String?,
      sourceUrl: json['sourceUrl'] as String?,
      lastUpdated: json['lastUpdated'] != null ? DateTime.parse(json['lastUpdated']) : null,
    );
  }
}