feat(server): cluster level event system (#9884)

packages/backend/server/src/core/doc/adapters/workspace.ts

@@ -6,7 +6,7 @@ import {
   Cache,
   DocHistoryNotFound,
   DocNotFound,
-  EventEmitter,
+  EventBus,
   FailedToSaveUpdates,
   FailedToUpsertSnapshot,
   metrics,
@@ -22,7 +22,18 @@ import {
 } from '../storage';
 
 const UPDATES_QUEUE_CACHE_KEY = 'doc:manager:updates';
-
+declare global {
+  interface Events {
+    'doc.snapshot.deleted': {
+      workspaceId: string;
+      docId: string;
+    };
+    'doc.snapshot.updated': {
+      workspaceId: string;
+      docId: string;
+    };
+  }
+}
 @Injectable()
 export class PgWorkspaceDocStorageAdapter extends DocStorageAdapter {
   private readonly logger = new Logger(PgWorkspaceDocStorageAdapter.name);
@@ -31,7 +42,7 @@ export class PgWorkspaceDocStorageAdapter extends DocStorageAdapter {
     private readonly db: PrismaClient,
     private readonly mutex: Mutex,
     private readonly cache: Cache,
-    private readonly event: EventEmitter,
+    private readonly event: EventBus,
     protected override readonly options: DocStorageOptions
   ) {
     super(options);
@@ -470,9 +481,9 @@ export class PgWorkspaceDocStorageAdapter extends DocStorageAdapter {
       const updatedSnapshot = result.at(0);
 
       if (updatedSnapshot) {
-        this.event.emit('snapshot.updated', {
+        this.event.emit('doc.snapshot.updated', {
           workspaceId: snapshot.spaceId,
-          id: snapshot.docId,
+          docId: snapshot.docId,
         });
       }
 

packages/backend/server/src/core/doc/job.ts

@@ -2,13 +2,7 @@ import { Injectable, Logger, OnModuleInit, Optional } from '@nestjs/common';
 import { Cron, CronExpression, SchedulerRegistry } from '@nestjs/schedule';
 import { PrismaClient } from '@prisma/client';
 
-import {
-  CallMetric,
-  Config,
-  type EventPayload,
-  metrics,
-  OnEvent,
-} from '../../base';
+import { CallMetric, Config, metrics, OnEvent } from '../../base';
 import { PgWorkspaceDocStorageAdapter } from './adapters/workspace';
 
 @Injectable()
@@ -81,7 +75,7 @@ export class DocStorageCronJob implements OnModuleInit {
   }
 
   @OnEvent('user.deleted')
-  async clearUserWorkspaces(payload: EventPayload<'user.deleted'>) {
+  async clearUserWorkspaces(payload: Events['user.deleted']) {
     for (const workspace of payload.ownedWorkspaces) {
       await this.workspace.deleteSpace(workspace);
     }