import 'dart:convert';

// Mocking the behavior of the DTOs
class TranslationDTO {
  String? language;
  String? value;
  TranslationDTO({this.language, this.value});
  Map<String, dynamic> toJson() => {'language': language, 'value': value};
  static TranslationDTO fromJson(Map<String, dynamic> json) =>
      TranslationDTO(language: json['language'], value: json['value']);
}

class EventAddressDTOGeometry {
  String? type;
  Object? coordinates;
  EventAddressDTOGeometry({this.type, this.coordinates});
  Map<String, dynamic> toJson() => {'type': type, 'coordinates': coordinates};
}

class GuidedStepDTO {
  List<TranslationDTO>? title;
  EventAddressDTOGeometry? geometry;

  GuidedStepDTO({this.title, this.geometry});

  Map<String, dynamic> toJson() {
    final json = <String, dynamic>{};
    if (this.title != null) {
      json['title'] = this.title!.map((v) => v.toJson()).toList();
    }
    if (this.geometry != null) {
      json['geometry'] = this.geometry; // The reported bug: no .toJson() call
    }
    return json;
  }

  static GuidedStepDTO fromJson(dynamic value) {
    if (value is Map) {
      final json = value.cast<String, dynamic>();
      return GuidedStepDTO(
        title: json['title'] != null
            ? (json['title'] as List)
                .map((i) => TranslationDTO.fromJson(i))
                .toList()
            : null,
        geometry: json['geometry'] is Map
            ? EventAddressDTOGeometry(
                type: json['geometry']['type'],
                coordinates: json['geometry']['coordinates'],
              )
            : (json['geometry'] is EventAddressDTOGeometry
                ? json['geometry']
                : null),
      );
    }
    return GuidedStepDTO();
  }
}

void main() {
  var geo = EventAddressDTOGeometry(type: 'Point', coordinates: [1.0, 2.0]);
  var step = GuidedStepDTO(
    title: [TranslationDTO(language: 'FR', value: 'Test')],
    geometry: geo,
  );

  print('Original geometry: ${step.geometry.runtimeType}');

  var jsonMap = step.toJson();
  print('Value in JSON map for geometry: ${jsonMap['geometry'].runtimeType}');

  // This is what I do in showNewOrUpdateGuidedStep.dart
  var clonedStep = GuidedStepDTO.fromJson(jsonMap);
  print('Cloned geometry: ${clonedStep.geometry.runtimeType}');

  // What happens if we actually JSON encode/decode?
  var encoded = jsonEncode(jsonMap);
  var decoded = jsonDecode(encoded);
  print('Decoded value for geometry: ${decoded['geometry'].runtimeType}');

  var clonedStepFromJSON = GuidedStepDTO.fromJson(decoded);
  print(
      'Cloned from actual JSON geometry: ${clonedStepFromJSON.geometry.runtimeType}');
}