1 files changed, 67 insertions, 0 deletions
diff --git a/server/providers/gateways/chat_room.gateway.ts b/server/providers/gateways/chat_room.gateway.ts
new file mode 100644
index 0000000..b565d40
--- /dev/null
+++ b/server/providers/gateways/chat_room.gateway.ts
@@ -0,0 +1,67 @@
+import { UseGuards } from '@nestjs/common';
+import {
+  ConnectedSocket,
+  MessageBody,
+  OnGatewayConnection,
+  OnGatewayDisconnect,
+  OnGatewayInit,
+  SubscribeMessage,
+  WebSocketGateway,
+  WebSocketServer,
+  WsException,
+} from '@nestjs/websockets';
+import { GatewayJwtBody } from 'server/decorators/gateway_jwt_body.decorator';
+import { JwtBodyDto } from 'server/dto/jwt_body.dto';
+import { Server, Socket } from 'socket.io';
+import { GatewayAuthGuard } from '../guards/gatewayauth.guard';
+import { JwtService } from '../services/jwt.service';
+import { UsersService } from '../services/users.service';
+
+@WebSocketGateway()
+@UseGuards(GatewayAuthGuard)
+export class ChatRoomGateway implements OnGatewayInit, OnGatewayConnection, OnGatewayDisconnect {
+  @WebSocketServer()
+  server: Server;
+
+  constructor(private jwtService: JwtService, private userService: UsersService) {}
+
+  afterInit(server: Server) {
+    console.log('Sockets initialized');
+  }
+
+  handleConnection(client: Socket) {
+    // you can do things like add users to rooms
+    // or emit events here.
+    // IMPORTANT! The GatewayAuthGuard doesn't trigger on these handlers
+    // if you need to do anything in this method you need to authenticate the JWT
+    // manually.
+    try {
+      const jwt = client.handshake.auth.token;
+      const jwtBody = this.jwtService.parseToken(jwt);
+      const chatRoomId = client.handshake.query.chatRoomId;
+      console.log('Client Connected: ', jwtBody.userId);
+      client.join(chatRoomId);
+    } catch (e) {
+      throw new WsException('Invalid token');
+    }
+  }
+
+  handleDisconnect(client: Socket) {
+    console.log('Client Disconnected');
+  }
+
+  @SubscribeMessage('message')
+  public async handleMessage(
+    @ConnectedSocket() client: Socket,
+    @MessageBody() data: string,
+    @GatewayJwtBody() jwtBody: JwtBodyDto,
+  ) {
+    const user = await this.userService.find(jwtBody.userId);
+    this.server.to(client.handshake.query.chatRoomId).emit('new-message', {
+      id: user.id * Math.random() * 2048 * Date.now(),
+      content: data,
+      userName: `${user.firstName} ${user.lastName}`,
+      userId: user.id,
+    });
+  }
+}