import 'location.dart';

class Task {
  final String id;
  final String title;
  final String description;
  final DateTime? start;
  final DateTime? due;
  final bool isCompleted;
  final String category;
  final List<Task> subtasks;
  final String url;

  Task({
    required this.id,
    required this.title,
    this.description = '',
    this.start,
    this.due,
    this.isCompleted = false,
    this.category = '',
    this.subtasks = const [],
    this.url = '',
  });

  Task copyWith({
    String? id,
    String? title,
    String? description,
    DateTime? start,
    DateTime? due,
    bool? isCompleted,
    String? category,
    List<Task>? subtasks,
    List<DateTime>? alarms,
    Location? location,
    String? url,
  }) {
    return Task(
      id: id ?? this.id,
      title: title ?? this.title,
      description: description ?? this.description,
      start: start ?? this.start,
      due: due ?? this.due,
      isCompleted: isCompleted ?? this.isCompleted,
      category: category ?? this.category,
      subtasks: subtasks ?? this.subtasks,
      url: url ?? this.url,
    );
  }

  factory Task.fromJson(Map<String, dynamic> json) {
    return Task(
      id: json['id'] as String,
      title: json['title'] as String,
      description: json['description'] as String? ?? '',
      start: json['start'] != null
          ? DateTime.parse(json['start'] as String)
          : null,
      due: json['due'] != null ? DateTime.parse(json['due'] as String) : null,
      isCompleted: json['isCompleted'] as bool? ?? false,
      category: json['category'] as String? ?? '',
      subtasks:
          (json['subtasks'] as List<dynamic>?)
              ?.map((e) => Task.fromJson(e as Map<String, dynamic>))
              .toList() ??
          [],
      url: json['url'] as String? ?? '',
    );
  }

  Map<String, dynamic> toJson() {
    return {
      'id': id,
      'title': title,
      'description': description,
      'start': start?.toIso8601String(),
      'due': due?.toIso8601String(),
      'isCompleted': isCompleted,
      'category': category,
      'subtasks': subtasks.map((e) => e.toJson()).toList(),
      'url': url,
    };
  }

  @override
  bool operator ==(Object other) {
    if (other is! Task) return false;

    return hashCode == other.hashCode;
  }

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