import 'location_alarm.dart';
import 'time_alarm.dart';

abstract class Alarm {
  String get id;
  Map<String, dynamic> toJson();

  factory Alarm.fromJson(Map<String, dynamic> json) {
    if (json.containsKey('triggerAt')) {
      return TimeAlarm.fromJson(json);
    }

    if (json.containsKey('location')) {
      return LocationAlarm.fromJson(json);
    }

    throw ArgumentError('Unknown alarm type');
  }

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

    return hashCode == other.hashCode;
  }

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