[ADD] added hosting a lobby

Client/Client.cs

@@ -8,6 +8,7 @@ using static SharedClientServer.JSONConvert;
 
 namespace Client
 {
+    public delegate void OnLobbyCreated(int id, int playersIn, int playersMax);
     class Client : ObservableObject
     {
         private TcpClient tcpClient;
@@ -20,6 +21,7 @@ namespace Client
         private string username;
         public Callback OnSuccessfullConnect;
         public Callback OnLobbiesListReceived;
+        public OnLobbyCreated OnLobbyCreated;
         public Lobby[] Lobbies { get; set; }
 
         public Client(string username)
@@ -98,6 +100,14 @@ namespace Client
                         case LobbyIdentifier.LIST:
                             Lobbies = JSONConvert.GetLobbiesFromMessage(payload);
                             OnLobbiesListReceived?.Invoke();
+                            break;
+                        case LobbyIdentifier.HOST:
+                            // we receive this when the server has made us a host of a new lobby
+                            // TODO get the new lobby and the id
+                            Debug.WriteLine("[CLIENT] got lobby object");
+                            Lobby lobby = JSONConvert.GetLobby(payload);
+                            OnLobbyCreated?.Invoke(lobby.ID,lobby.PlayersIn,lobby.MaxPlayers);
+
                             break;
                     }
                     //TODO fill lobby with the data received

Client/ViewModels/ViewModel.cs

@@ -30,18 +30,35 @@ namespace Client
             _lobbies = new ObservableCollection<Lobby>();
             client = ClientData.Instance.Client;
             client.OnLobbiesListReceived = updateLobbies;
-            //_lobbies.Add(new Lobby(50, 3, 8));
-            //_lobbies.Add(new Lobby(69, 1, 9));
-            //_lobbies.Add(new Lobby(420, 7, 7));
+            
 
-            OnHostButtonClick = new RelayCommand(() => 
-            {
-                Debug.WriteLine("Host button clicked");
-            });
+            OnHostButtonClick = new RelayCommand(hostGame);
 
             JoinSelectedLobby = new RelayCommand(startGameInLobby, true);
         }
 
+        private void hostGame()
+        {
+            Debug.WriteLine("attempting to host game for " + ClientData.Instance.User.Username);
+            client.SendMessage(JSONConvert.ConstructLobbyHostMessage());
+            client.OnLobbyCreated = becomeHostForLobby;
+        }
+
+        private void becomeHostForLobby(int id, int players, int maxplayers)
+        {
+            
+            Debug.WriteLine($"got host succes with data {id} {players} {maxplayers} ");
+            Lobby newLobby = new Lobby(id, players, maxplayers);
+            SelectedLobby = newLobby;
+            Application.Current.Dispatcher.Invoke(delegate
+            {
+                _lobbies.Add(newLobby);
+                startGameInLobby();
+            });
+        }
+
+
+
         private void updateLobbies()
         {
             Lobby[] lobbiesArr = client.Lobbies;
@@ -61,13 +78,17 @@ namespace Client
             if (SelectedLobby != null)
             {
                 ClientData.Instance.Lobby = SelectedLobby;
-                
-                _model.CanStartGame = false;
-                GameWindow window = new GameWindow();
-                window.Show();
+                startGameWindow();
             }
         }
 
+        private void startGameWindow()
+        {
+            _model.CanStartGame = false;
+            GameWindow window = new GameWindow();
+            window.Show();
+        }
+
         private void ClickCheck()
         {
             if(!(_model.Status))