client can see if doctor connected

ClientApp/Utils/Client.cs

@@ -163,6 +163,12 @@ namespace ClientApp.Utils
                                 sendMessage(DataParser.getSetResistanceResponseJson(true));
                             }
                             break;
+                        case DataParser.NEW_CONNECTION:
+                            this.LoginViewModel.DoctorConnected(DataParser.getUsernameFromJson(payloadbytes));
+                            break;
+                        case DataParser.DISCONNECT:
+                            this.LoginViewModel.DoctorDisconnected(DataParser.getUsernameFromJson(payloadbytes));
+                            break;
                         default:
                             Console.WriteLine($"Received json with identifier {identifier}:\n{Encoding.ASCII.GetString(payloadbytes)}");
                             break;

ClientApp/ViewModels/LoginViewModel.cs

@@ -42,5 +42,15 @@ namespace ClientApp.ViewModels
                 this.MainWindowViewModel.SelectedViewModel = new MainViewModel(MainWindowViewModel);
             }
         }
+
+        internal void DoctorConnected(string name)
+        {
+            this.MainWindowViewModel.InfoModel.DoctorConnected = true;
+        }
+
+        internal void DoctorDisconnected(string name)
+        {
+            this.MainWindowViewModel.InfoModel.DoctorConnected = false;
+        }
     }
 }