init notification

src/socket/socket.gateway.ts

@@ -0,0 +1,61 @@
+import { OnGatewayConnection, SubscribeMessage, WebSocketGateway, WebSocketServer } from "@nestjs/websockets";
+import { Server, Socket } from "socket.io";
+import { NotificationInterface } from "../notifications/interfaces/notification.interface";
+import { SocketService } from "./socket.service";
+
+@WebSocketGateway()
+export class SocketGateway implements OnGatewayConnection {
+  @WebSocketServer() server: Server;
+
+  constructor(
+    private socketService: SocketService,
+  ) {
+  }
+
+  handleConnection(client: Socket) {
+    this.socketService.ClientConnection({
+      client_id: client.handshake.auth.token,
+      socket_id: client.id,
+      event: "connected",
+    });
+    client.on("disconnect", (reason) => {
+      this.socketService.ClientConnection({
+        client_id: client.handshake.auth.token,
+        socket_id: client.id,
+        event: "disconnected",
+        description: reason,
+      });
+    });
+  }
+
+  @SubscribeMessage("sendNotificationToClients")
+  handleSendNotification(notificationData: NotificationInterface) {
+    return new Promise(async (resolve) => {
+      const connectedClients = this.server.sockets.sockets;
+
+      if (connectedClients.size === 0) resolve({ status: "failed", message: "Clients not found!" });
+
+      let sent: any = false;
+
+      for (const connectedClient of connectedClients) {
+        if (connectedClient[1].handshake.auth.token == notificationData.telephone_id) {
+          sent = await new Promise((resolve) => {
+            connectedClient[1].timeout(2000).emit("answer", JSON.stringify(notificationData), (err: any) => {
+              if (err) {
+                resolve(false);
+              } else {
+                resolve(true);
+              }
+            });
+          });
+        }
+      }
+
+      if (sent) {
+        resolve({ status: "success", message: "Sent to clients" });
+      } else {
+        resolve({ status: "failed", message: "Not sent to clients" });
+      }
+    });
+  }
+}