Merge branch 'master' into setupBranch

Client/Client.cs

@@ -2,9 +2,11 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.IO;
 using System.Net.Sockets;
 using System.Text;
 using System.Windows.Media;
+using System.Windows;
 using static SharedClientServer.JSONConvert;
 
 namespace Client
@@ -30,6 +32,7 @@ namespace Client
         public Callback OnLobbiesListReceived;
         public LobbyJoinCallback OnLobbyJoinSuccess;
         public Callback OnLobbiesReceivedAndWaitingForHost;
+        public Callback OnServerDisconnect;
         public LobbyCallback OnLobbyCreated;
         public LobbyCallback OnLobbyLeave;
         private ClientData data = ClientData.Instance;
@@ -48,43 +51,60 @@ namespace Client
         private void OnConnect(IAsyncResult ar)
         {
             Debug.Write("finished connecting to server");
-            this.tcpClient.EndConnect(ar);
+            try
-            this.stream = tcpClient.GetStream();
+            {
-            OnSuccessfullConnect?.Invoke();
+                this.tcpClient.EndConnect(ar);
-            SendMessage(JSONConvert.ConstructUsernameMessage(username));
+                this.stream = tcpClient.GetStream();
-            this.stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(OnReadComplete),null);
+                OnSuccessfullConnect?.Invoke();
+                SendMessage(JSONConvert.ConstructUsernameMessage(username));
+                this.stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(OnReadComplete),null);
+
+            } catch (Exception e)
+            {
+                Debug.WriteLine("Can't connect, retrying...");
+                tcpClient.BeginConnect("localhost", Port, new AsyncCallback(OnConnect), null);
+            }
         }
 
         private void OnReadComplete(IAsyncResult ar)
         {
-            int amountReceived = stream.EndRead(ar);
+            if (ar == null || (!ar.IsCompleted) || (!this.stream.CanRead) || !this.tcpClient.Client.Connected)
-            if (totalBufferReceived + amountReceived > 1024)
+                return;
+            try
             {
-                throw new OutOfMemoryException("buffer too small");
+                int amountReceived = stream.EndRead(ar);
-            }
-
-            // copy the received bytes into the buffer
-            Array.Copy(buffer, 0, totalBuffer, totalBufferReceived, amountReceived);
-            // add the bytes we received to the total amount
-            totalBufferReceived += amountReceived;
 
-            int expectedMessageLength = BitConverter.ToInt32(totalBuffer, 0);
+                if (totalBufferReceived + amountReceived > 1024)
+                {
+                    throw new OutOfMemoryException("buffer too small");
+                }
 
-            while (totalBufferReceived >= expectedMessageLength)
+                Array.Copy(buffer, 0, totalBuffer, totalBufferReceived, amountReceived);
+                totalBufferReceived += amountReceived;
+
+                int expectedMessageLength = BitConverter.ToInt32(totalBuffer, 0);
+
+                while (totalBufferReceived >= expectedMessageLength)
+                {
+                    // we have received the complete packet
+                    byte[] message = new byte[expectedMessageLength];
+                    // put the message received into the message array
+                    Array.Copy(totalBuffer, 0, message, 0, expectedMessageLength);
+
+                    handleData(message);
+
+                    totalBufferReceived -= expectedMessageLength;
+                    expectedMessageLength = BitConverter.ToInt32(totalBuffer, 0);
+                }
+
+                ar.AsyncWaitHandle.WaitOne();
+                stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(OnReadComplete), null);
+            } catch (IOException e)
             {
-                // we have received the complete packet
+                Debug.WriteLine("[CLIENT] server not responding! got error: " + e.Message);
-                byte[] message = new byte[expectedMessageLength];
+                OnServerDisconnect?.Invoke();   
-                // put the message received into the message array
-                Array.Copy(totalBuffer, 0, message, 0, expectedMessageLength);
-
-                handleData(message);
-
-                totalBufferReceived -= expectedMessageLength;
-                Debug.WriteLine($"reduced buffer: {expectedMessageLength}");
-                expectedMessageLength = BitConverter.ToInt32(totalBuffer, 0);
             }
-
+            
-            stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(OnReadComplete), null);
         }
 
         private void handleData(byte[] message)
@@ -162,10 +182,18 @@ namespace Client
                     }
                     break;
 
+                case JSONConvert.RANDOMWORD:
+                    //Flag byte for receiving the random word.
+                    int lobbyId = JSONConvert.GetLobbyID(payload);
+
+                    if(data.Lobby?.ID == lobbyId)
+                    ViewModels.ViewModelGame.HandleRandomWord(JSONConvert.GetRandomWord(payload));
+                    break;
                 default:
                     Debug.WriteLine("[CLIENT] Received weird identifier: " + id);
                     break;
             }
+            SendMessage(JSONConvert.GetMessageToSend(JSONConvert.MESSAGE_RECEIVED,null));
 
         }
 
@@ -173,12 +201,14 @@ namespace Client
         {
             Debug.WriteLine("[CLIENT] sending message " + Encoding.ASCII.GetString(message));
             stream.BeginWrite(message, 0, message.Length, new AsyncCallback(OnWriteComplete), null);
+
         }
 
         private void OnWriteComplete(IAsyncResult ar)
         {
             Debug.WriteLine("[CLIENT] finished writing");
             stream.EndWrite(ar);
+            stream.Flush();
         }
     }
 }

Client/ViewModels/ViewModel.cs

@@ -38,6 +38,10 @@ namespace Client
             client = ClientData.Instance.Client;
             client.OnLobbiesListReceived = updateLobbies;
             client.OnLobbyLeave = leaveLobby;
+            client.OnServerDisconnect = () =>
+            {
+                Environment.Exit(0);
+            };
             
 
             OnHostButtonClick = new RelayCommand(hostGame);
@@ -61,12 +65,10 @@ namespace Client
 
         private void becomeHostForLobby(int id)
         {
-            
             Debug.WriteLine($"got host succes with data {id} ");
             wantToBeHost = true;
             wantToBeHostId = id;
             client.OnLobbiesReceivedAndWaitingForHost = hostLobbiesReceived;
-
         }
 
         private void hostLobbiesReceived()

Client/ViewModels/ViewModelGame.cs

@@ -1,5 +1,5 @@
 
-using Client.Views;
+using Client.Views;
 using GalaSoft.MvvmLight.Command;
 using SharedClientServer;
 using System;
@@ -7,6 +7,7 @@ using System.Collections.ObjectModel;
 using System.ComponentModel;
 using System.Diagnostics;
 using System.Windows;
+using System.Windows.Controls;
 using System.Windows.Input;
 using System.Windows.Media;
 using System.Windows.Shapes;
@@ -25,6 +26,12 @@ namespace Client.ViewModels
 
         private dynamic _payload;
 
+        public static string Word
+        {
+            get;
+            set;
+        }
+
         public string _username;
 
         public string _message;
@@ -165,6 +172,10 @@ namespace Client.ViewModels
             data.Client.SendMessage(JSONConvert.GetMessageToSend(JSONConvert.MESSAGE, _payload));
         }
 
+        /*
+         * MISC make this a callback
+         * Handles the incoming chat message from another client.
+         */
         public static void HandleIncomingMsg(string username, string message)
         {
             Application.Current.Dispatcher.Invoke(delegate
@@ -172,13 +183,21 @@ namespace Client.ViewModels
                 Messages.Add($"{username}: {message}");
             });
         }
-        public void LeaveGame(object sender, System.ComponentModel.CancelEventArgs e)
+        public void LeaveGame(object sender, CancelEventArgs e)
         {
             Debug.WriteLine("Leaving...");
             data.Client.SendMessage(JSONConvert.ConstructLobbyLeaveMessage(data.Lobby.ID));
         }
 
-
+        /*
+         * MISC make this a callback
+         * Handles the random word that has been received from the server.
+         */
+        public static void HandleRandomWord(string randomWord)
+        {
+            Debug.WriteLine("[CLIENT] Reached the handle random word method!");
+            Word = "NegerPik";
+        }
     }
 }
-       
+

Server/Models/ServerClient.cs

@@ -9,10 +9,13 @@ using System.Diagnostics;
 using System.IO;
 using System.Net.Sockets;
 using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
 using static SharedClientServer.JSONConvert;
 
 namespace Server.Models
 {
+    public delegate void Callback();
     class ServerClient : ObservableObject
     {
         private TcpClient tcpClient;
@@ -22,7 +25,8 @@ namespace Server.Models
         private int totalBufferReceived = 0;
         public User User { get; set; }
         private ServerCommunication serverCom = ServerCommunication.INSTANCE;
-        
+        private Callback OnMessageReceivedOk;
+
 
         /// <summary>
         /// Constructor that creates a new serverclient object with the given tcp client.
@@ -86,17 +90,18 @@ namespace Server.Models
 
 
                 }
+                ar.AsyncWaitHandle.WaitOne();
                 // start reading for a new message
                 stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(OnRead), null);
-
             }
             catch (IOException e)
             {
+                Debug.WriteLine("[SERVERCLIENT] Client disconnected! exception was " + e.Message);
                 tcpClient.Close();
                 ServerCommunication.INSTANCE.ServerClientDisconnect(this);
             }
-            
+
-            
+
         }
 
         /// <summary>
@@ -108,21 +113,21 @@ namespace Server.Models
             Debug.WriteLine($"Got message : {Encoding.ASCII.GetString(message)}");
             byte id = message[4];
             byte[] payload = new byte[message.Length - 5];
-            Array.Copy(message,5,payload,0,message.Length-5);
+            Array.Copy(message, 5, payload, 0, message.Length - 5);
             Debug.WriteLine("[SERVERCLIENT] GOT STRING" + Encoding.ASCII.GetString(payload));
-            switch(id)
+            switch (id)
             {
-                
+
                 case JSONConvert.LOGIN:
                     // json log in username data
                     string uName = JSONConvert.GetUsernameLogin(payload);
-                    
+
                     if (uName != null)
                     {
                         User = new User(uName);
                         User.Username = uName;
                         Debug.WriteLine("[SERVERCLIENT] set username to " + uName);
-                        
+
                     }
                     break;
                 case JSONConvert.MESSAGE:
@@ -145,7 +150,7 @@ namespace Server.Models
                 case JSONConvert.LOBBY:
                     // lobby data
                     LobbyIdentifier l = JSONConvert.GetLobbyIdentifier(payload);
-                    handleLobbyMessage(payload,l);
+                    handleLobbyMessage(payload, l);
                     break;
 
                 case JSONConvert.CANVAS:
@@ -191,6 +196,13 @@ namespace Server.Models
 
                     break;
 
+                case JSONConvert.RANDOMWORD:
+                    //Flag byte for receiving the random word.
+                    break;
+                case JSONConvert.MESSAGE_RECEIVED:
+                    // we now can send a new message
+                    OnMessageReceivedOk?.Invoke();
+                    break;
                 default:
                     Debug.WriteLine("[SERVER] Received weird identifier: " + id);
                     break;
@@ -218,6 +230,15 @@ namespace Server.Models
                     ServerCommunication.INSTANCE.JoinLobby(this.User,id, out isHost);
                     sendMessage(JSONConvert.ConstructLobbyJoinSuccessMessage(isHost));
                     ServerCommunication.INSTANCE.sendToAll(JSONConvert.ConstructLobbyListMessage(ServerCommunication.INSTANCE.lobbies.ToArray()));
+                    OnMessageReceivedOk = () =>
+                    {
+                        serverCom.sendToAll(JSONConvert.GetMessageToSend(JSONConvert.RANDOMWORD, new
+                        {
+                            id = serverCom.GetLobbyForUser(User).ID,
+                            word = JSONConvert.SendRandomWord("WordsForGame.json")
+                        }));
+                        OnMessageReceivedOk = null;
+                    };
                     break;
                 case LobbyIdentifier.LEAVE:
                     id = JSONConvert.GetLobbyID(payload);
@@ -228,6 +249,21 @@ namespace Server.Models
             }
         }
 
+        private async void SendLobbyData()
+        {
+            string result = await WaitForData();
+            if(result == "bruh momento")
+            {
+              
+            }
+        }
+
+        private async Task<string> WaitForData()
+        {
+            await Task.Delay(1000);
+            return "bruh momento";
+        }
+
         /// <summary>
         /// sends a message to the tcp client
         /// </summary>

Server/Models/ServerCommunication.cs

@@ -90,7 +90,7 @@ namespace Server.Models
         /// send a message to all tcp clients in the list
         /// </summary>
         /// <param name="message">the message to send</param>
-        public void sendToAll(byte[] message)
+        public async void sendToAll(byte[] message)
         {
             foreach (ServerClient sc in serverClients)
             {
@@ -142,6 +142,7 @@ namespace Server.Models
                 {
                     foreach (ServerClient sc in serverClientsInlobbies[l])
                     {
+                        Debug.WriteLine("[SERVERCLIENT] Sending message");
                         sc.sendMessage(message);
                     }
                     break;

Server/Server.csproj

@@ -6,6 +6,16 @@
     <UseWPF>true</UseWPF>
   </PropertyGroup>
 
+  <ItemGroup>
+    <None Remove="resources\WordsForGame.json" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Content Include="resources\WordsForGame.json">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="AsyncAwaitBestPractices" Version="4.3.0" />
     <PackageReference Include="Extended.Wpf.Toolkit" Version="4.0.1" />

Server/resources/WordsForGame.json

@@ -0,0 +1,31 @@
+{
+  "filename": "wordsForGame",
+  "words": [
+    "teacher",
+    "love",
+    "engineer",
+    "supermarket",
+    "disaster",
+    "studio",
+    "restaurant",
+    "music",
+    "chocolate",
+    "dirt",
+    "thought",
+    "virus",
+    "lieutenant",
+    "painter",
+    "kiwi",
+    "power ranger",
+    "computer",
+    "people",
+    "candidate",
+    "security guard",
+    "Canada",
+    "teeth",
+    "army",
+    "airport",
+    "president",
+    "bedroom"
+  ]
+}

SharedClientServer/JSONConvert.cs

@@ -1,9 +1,11 @@
 using Client;
+using Microsoft.VisualBasic.CompilerServices;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.IO;
 using System.Linq;
 using System.Text;
 using System.Windows.Media;
@@ -16,6 +18,8 @@ namespace SharedClientServer
         public const byte MESSAGE = 0x02;
         public const byte LOBBY = 0x03;
         public const byte CANVAS = 0x04;
+        public const byte RANDOMWORD = 0x05;
+        public const byte MESSAGE_RECEIVED = 0x06;
         public const byte GAME = 0x05;
 
         public enum LobbyIdentifier
@@ -233,7 +237,39 @@ namespace SharedClientServer
             Array.Copy(BitConverter.GetBytes(payloadBytes.Length+5),0,res,0,4);
             return res;
         }
+    
+        /*
+         * This method sends a random word from the json file, this happens when the client joins a lobby.
+         */
+        public static string SendRandomWord(string filename)
+        {
+            dynamic words;
+            Random random = new Random();
+            string workingDir = Path.GetFullPath(@"..\Server");
+            string projDir = Directory.GetParent(workingDir).Parent.Parent.FullName;
+            string filePath = projDir += $@"\resources\{filename}";
 
+            using(StreamReader reader = new StreamReader(filePath))
+            {
+                string json = reader.ReadToEnd();
+                words = JsonConvert.DeserializeObject(json);
+            }
+
+
+            int index = random.Next(0, 24);
+
+            Debug.WriteLine($"[SERVERCLIENT] Sending random words {words}");
+
+            return words.words[index];
+        }
         
+        /*
+         * Client gets the payload and retrieves the word from the payload
+         */
+        public static string GetRandomWord(byte[] json)
+        {
+            dynamic payload = JsonConvert.DeserializeObject(Encoding.ASCII.GetString(json));
+            return payload.word;
+        }
     }
 }