now working as expected

ts/smartsocket.classes.socketserver.ts

@@ -0,0 +1,76 @@
+import * as plugins from './smartsocket.plugins';
+
+// used in case no other server is supplied
+import * as http from 'http';
+import { Smartsocket } from './smartsocket.classes.smartsocket';
+
+/**
+ * class socketServer
+ * handles the attachment of socketIo to whatever server is in play
+ */
+export class SocketServer {
+  private smartsocket: Smartsocket;
+  private httpServer: http.Server;
+  // wether httpServer is standalone
+  private standaloneServer = false;
+  private expressServer: any;
+
+  constructor(smartSocketInstance: Smartsocket) {
+    this.smartsocket = smartSocketInstance;
+  }
+
+  /**
+   * starts the server with another server
+   * also works with an express style server
+   */
+  public async setExternalServer(serverType: 'express' | 'http', serverArg: any) {
+    if (serverType === 'http') {
+      this.httpServer = serverArg;
+    } else if (serverType === 'express') {
+      this.expressServer = serverArg;
+    }
+  }
+
+  /**
+   * gets the server for socket.io
+   */
+  public getServerForSocketIo() {
+    if (this.httpServer) {
+      return this.httpServer;
+    } else if (this.expressServer) {
+      return this.expressServer;
+    } else if (!this.httpServer && !this.expressServer) {
+      this.httpServer = new http.Server();
+      this.standaloneServer = true;
+      return this.httpServer;
+    } else {
+      throw new Error('no server specified!');
+    }
+  }
+
+  /**
+   * starts listening to incoming sockets:
+   */
+  public async start() {
+    const done = plugins.smartq.defer();
+
+    // handle http servers
+    if (this.httpServer && this.standaloneServer) {
+      this.httpServer.listen(this.smartsocket.options.port, () => {
+        console.log(`Server started in standalone mode on ${this.smartsocket.options.port}`);
+        done.resolve();
+      });
+    } else {
+      done.resolve();
+    }
+
+    // nothing else to do if express server is set
+    await done.promise;
+    return;
+  }
+
+  /**
+   * closes the server
+   */
+  public async stop() {}
+}