class TrainingPlanModel {
  String id;
  String name;
  List<TrainingSectionModel> sections;

  TrainingPlanModel({
    required this.id,
    required this.name,
    required this.sections,
  });

  factory TrainingPlanModel.fromJson(Map<String, dynamic> json) {
    return TrainingPlanModel(
      id: json['id'] ?? '',
      name: json['name'] ?? '',
      sections:
          (json['sections'] as List<dynamic>?)
              ?.map((e) => TrainingSectionModel.fromJson(e))
              .toList() ??
          [],
    );
  }

  Map<String, dynamic> toJson() {
    return {
      'id': id,
      'name': name,
      'sections': sections.map((e) => e.toJson()).toList(),
    };
  }
}

class TrainingSectionModel {
  String id;
  String name;
  List<TrainingExerciseModel> exercises;

  TrainingSectionModel({
    required this.id,
    required this.name,
    required this.exercises,
  });

  factory TrainingSectionModel.fromJson(Map<String, dynamic> json) {
    return TrainingSectionModel(
      id: json['id'] ?? '',
      name: json['name'] ?? '',
      exercises:
          (json['exercises'] as List<dynamic>?)
              ?.map((e) => TrainingExerciseModel.fromJson(e))
              .toList() ??
          [],
    );
  }

  Map<String, dynamic> toJson() {
    return {
      'id': id,
      'name': name,
      'exercises': exercises.map((e) => e.toJson()).toList(),
    };
  }
}

class TrainingExerciseModel {
  String instanceId;
  String exerciseId;
  String name;
  int sets;
  int value; // Reps or Seconds
  bool isTime;
  int rest;

  TrainingExerciseModel({
    required this.instanceId,
    required this.exerciseId,
    required this.name,
    required this.sets,
    required this.value,
    required this.isTime,
    required this.rest,
  });

  factory TrainingExerciseModel.fromJson(Map<String, dynamic> json) {
    return TrainingExerciseModel(
      instanceId: json['instanceId'] ?? '',
      exerciseId: json['exerciseId'] ?? '',
      name: json['name'] ?? '',
      sets: json['sets'] ?? 3,
      value: json['value'] ?? 10,
      isTime: json['isTime'] ?? false,
      rest: json['rest'] ?? 60,
    );
  }

  Map<String, dynamic> toJson() {
    return {
      'instanceId': instanceId,
      'exerciseId': exerciseId,
      'name': name,
      'sets': sets,
      'value': value,
      'isTime': isTime,
      'rest': rest,
    };
  }
}