feat: persist notes on realtime note unload and on interval

The realtime note map has been moved into its own class
to separate the realtime note business logic from the storing logic.

Signed-off-by: Tilman Vatteroth <git@tilmanvatteroth.de>

src/realtime/realtime-note/test-utils/mock-realtime-note.ts

@@ -7,18 +7,26 @@ import { EventEmitter } from 'events';
 import { Mock } from 'ts-mockery';
 import TypedEmitter from 'typed-emitter';
 
+import { Note } from '../../../notes/note.entity';
 import { RealtimeNote, RealtimeNoteEvents } from '../realtime-note';
 import { WebsocketAwareness } from '../websocket-awareness';
 import { WebsocketDoc } from '../websocket-doc';
+import { mockAwareness } from './mock-awareness';
+import { mockWebsocketDoc } from './mock-websocket-doc';
 
 class MockRealtimeNote extends (EventEmitter as new () => TypedEmitter<RealtimeNoteEvents>) {
   constructor(
+    private note: Note,
     private doc: WebsocketDoc,
     private awareness: WebsocketAwareness,
   ) {
     super();
   }
 
+  public getNote(): Note {
+    return this.note;
+  }
+
   public getYDoc(): WebsocketDoc {
     return this.doc;
   }
@@ -30,6 +38,10 @@ class MockRealtimeNote extends (EventEmitter as new () => TypedEmitter<RealtimeN
   public removeClient(): void {
     //left blank for mock
   }
+
+  public destroy(): void {
+    //left blank for mock
+  }
 }
 
 /**
@@ -38,8 +50,15 @@ class MockRealtimeNote extends (EventEmitter as new () => TypedEmitter<RealtimeN
  * @param awareness Defines the return value for `getAwareness`
  */
 export function mockRealtimeNote(
-  doc: WebsocketDoc,
-  awareness: WebsocketAwareness,
+  note?: Note,
+  doc?: WebsocketDoc,
+  awareness?: WebsocketAwareness,
 ): RealtimeNote {
-  return Mock.from<RealtimeNote>(new MockRealtimeNote(doc, awareness));
+  return Mock.from<RealtimeNote>(
+    new MockRealtimeNote(
+      note ?? Mock.of<Note>(),
+      doc ?? mockWebsocketDoc(),
+      awareness ?? mockAwareness(),
+    ),
+  );
 }