class Note {
  final int id;
  final String title;
  final String body;
  final List<String> tags;
  final int? projectId;
  final int? milestoneId;
  final DateTime createdAt;
  final DateTime updatedAt;

  const Note({
    required this.id,
    required this.title,
    required this.body,
    required this.tags,
    this.projectId,
    this.milestoneId,
    required this.createdAt,
    required this.updatedAt,
  });

  factory Note.fromJson(Map<String, dynamic> json) => Note(
        id: json['id'] as int,
        title: json['title'] as String? ?? '',
        body: json['body'] as String? ?? '',
        tags: (json['tags'] as List<dynamic>?)
                ?.map((e) => e as String)
                .toList() ??
            [],
        projectId: json['project_id'] as int?,
        milestoneId: json['milestone_id'] as int?,
        createdAt: DateTime.parse(json['created_at'] as String),
        updatedAt: DateTime.parse(json['updated_at'] as String),
      );

  Map<String, dynamic> toJson() => {
        'title': title,
        'body': body,
        'tags': tags,
        'project_id': projectId,
        'milestone_id': milestoneId,
      };

  Note copyWith({
    String? title,
    String? body,
    List<String>? tags,
    Object? projectId = _undefined,
    Object? milestoneId = _undefined,
  }) =>
      Note(
        id: id,
        title: title ?? this.title,
        body: body ?? this.body,
        tags: tags ?? this.tags,
        projectId: identical(projectId, _undefined)
            ? this.projectId
            : projectId as int?,
        milestoneId: identical(milestoneId, _undefined)
            ? this.milestoneId
            : milestoneId as int?,
        createdAt: createdAt,
        updatedAt: updatedAt,
      );

  static const _undefined = Object();
}