move arguments and notification interfaces to notification repository file

src/repositories/NotificationRepository.ts

@@ -0,0 +1,33 @@
+export interface NotificationLookupArguments {
+  deviceId: string;
+  shuttleId: string;
+  stopId: string;
+}
+
+export interface ScheduledNotification extends NotificationLookupArguments {
+  /**
+   * Value which specifies the ETA of the shuttle for when
+   * the notification should fire.
+   * For example, a secondsThreshold of 180 would mean that the notification
+   * fires when the ETA drops below 3 minutes.
+   */
+  secondsThreshold: number;
+}
+
+export class NotificationRepository {
+  public async getAllNotificationsForShuttleAndStopId(shuttleId: string, stopId: string) {
+
+  }
+
+  public async getSecondsThresholdForNotificationIfExists(lookupArguments: NotificationLookupArguments) {
+
+  }
+
+  public async addNotification(notification: ScheduledNotification) {
+
+  }
+
+  public async deleteNotification(lookupArguments: NotificationLookupArguments) {
+
+  }
+}