export const NOTIFICATION_CHANNELS = ['EMAIL', 'PUSH'] as const;

export type NotificationChannelValue = (typeof NOTIFICATION_CHANNELS)[number];

export class NotificationChannel {
  private constructor(private readonly _value: NotificationChannelValue) {}

  static create(value: string): NotificationChannel {
    if (!NOTIFICATION_CHANNELS.includes(value as NotificationChannelValue)) {
      throw new Error(`Недопустимый канал уведомлений: "${value}". Разрешены: ${NOTIFICATION_CHANNELS.join(', ')}`);
    }

    return new NotificationChannel(value as NotificationChannelValue);
  }

  get value(): NotificationChannelValue {
    return this._value;
  }

  equals(other: NotificationChannel): boolean {
    return this._value === other.value;
  }
}