feat: notification framework

server/lib/notifications/index.ts

@@ -0,0 +1,33 @@
+import logger from '../../logger';
+import type { NotificationAgent, NotificationPayload } from './agents/agent';
+
+export enum Notification {
+  MEDIA_ADDED = 2,
+}
+
+class NotificationManager {
+  private activeAgents: NotificationAgent[] = [];
+
+  public registerAgents = (agents: NotificationAgent[]): void => {
+    this.activeAgents = [...this.activeAgents, ...agents];
+    logger.info('Registered Notification Agents', { label: 'Notifications' });
+  };
+
+  public sendNotification(
+    type: Notification,
+    payload: NotificationPayload
+  ): void {
+    logger.info(`Sending notification for ${Notification[type]}`, {
+      label: 'Notifications',
+    });
+    this.activeAgents.forEach((agent) => {
+      if (agent.shouldSend(type)) {
+        agent.send(type, payload);
+      }
+    });
+  }
+}
+
+const notificationManager = new NotificationManager();
+
+export default notificationManager;