websocket cursor data broadcast

src/ws/state/state.gateway.ts

@@ -0,0 +1,41 @@
+import { Logger } from '@nestjs/common';
+import {
+  OnGatewayConnection,
+  OnGatewayDisconnect,
+  OnGatewayInit,
+  SubscribeMessage,
+  WebSocketGateway,
+  WebSocketServer,
+} from '@nestjs/websockets';
+
+import { Server, Socket } from 'socket.io';
+
+@WebSocketGateway()
+export class StateGateway
+  implements OnGatewayInit, OnGatewayConnection, OnGatewayDisconnect
+{
+  private readonly logger = new Logger(StateGateway.name);
+
+  @WebSocketServer() io: Server;
+
+  afterInit() {
+    this.logger.log('Initialized');
+  }
+
+  handleConnection(client: Socket) {
+    const { sockets } = this.io.sockets;
+
+    this.logger.log(`Client id: ${client.id} connected`);
+    this.logger.debug(`Number of connected clients: ${sockets.size}`);
+  }
+
+  handleDisconnect(client: Socket) {
+    this.logger.log(`Cliend id:${client.id} disconnected`);
+  }
+
+  @SubscribeMessage('cursor-report-position')
+  handleCursorReportPosition(client: Socket, data: any) {
+    this.logger.log(`Message received from client id: ${client.id}`);
+    this.logger.debug(`Payload: ${JSON.stringify(data, null, 0)}`);
+  }
+}