public void Connect(int userid)
{
if (!ConnectedUsers.Contains(userid))
{
ConnectedUsers.Add(userid);
}
}
public void RemoveUser(User user)
{
if (ConnectedUsers.Contains(user))
{
ConnectedUsers.Remove(user);
AddMessage($"{user.Name} left the chat", ChatMessage.ChatMessageTypes.META);
}
}
public bool AddUser(User user)
{
if (!ConnectedUsers.Contains(user))
{
AddMessage($"{user.Name} joined the chat", ChatMessage.ChatMessageTypes.META);
ConnectedUsers.Add(user);
return(true);
}
return(false);
}
public Message GetMessage()
{
while (!messageQueue.IsEmpty())
{
var message = messageQueue.Dequeue();
//Only return message from someone still connected
//and that has not timed out
if (connectedUsers.Contains(message.User) && DateTime.Now.Subtract(message.Date) < TIMEOUT)
{
return(message);
}
}
return(null);
}
private void ClientSubscribed(User user)
{
try
{
this._currentDispatcher.Invoke(DispatcherPriority.Normal, (Action)(() =>
{
if (!ConnectedUsers.Contains(user))
{
ConnectedUsers.Add(user);
ConnectedUsersCount++;
}
}));
}
catch (Exception exception)
{
Logger.Error(exception, OType.FullName, "ClientSubscribed");
}
}
private void E_ReceivedMsg(object sender, string e)
{
if (e.StartsWith("@quit"))
{
var client = sender as ClientHandler;
ConnectedUsers.Remove(client.Username); // remove username
}
else
{
App.Current.Dispatcher.Invoke(() =>
{
var client = sender as ClientHandler;
ReceivedMsg.Add(client.Username + ":" + e);
RaisePropertyChanged(nameof(CountMsg));
if (!ConnectedUsers.Contains(client.Username))
{
ConnectedUsers.Add(client.Username);
}
});
}
}
void WorkerOnProgressChanged(object sender, ProgressChangedEventArgs e)
{
Message message = e.UserState as Message;
if (message != null)
{
switch (message.Type)
{
case Message.MessageType.Connect:
{
if (message.Username.Equals(Username))
{
ChatMessages += String.Format("({1}) Welcome, {0}!\n", Username, message.MessageCreationTime.ToString("G"));
IsConnected = true;
}
else
{
ConnectedUsers.Add(message.Username);
ChatMessages += String.Format("({1}) {0} has joined the server.\n", message.Username, message.MessageCreationTime.ToString("G"));
}
break;
}
case Message.MessageType.Disconnect:
{
if (!message.Username.Equals(Username))
{
ConnectedUsers.Remove(message.Username);
ChatMessages += String.Format("({1}) {0} has left the server.\n", message.Username, message.MessageCreationTime.ToString("G"));
}
break;
}
case Message.MessageType.ChatMessage:
{
if (message.Username != Username && !ConnectedUsers.Contains(message.Username))
{
ConnectedUsers.Add(message.Username);
}
ChatMessages += String.Format("({1}) {2}: {0} \n", message.ChatMessage, message.MessageCreationTime.ToString("G"), message.Username);
break;
}
case Message.MessageType.UsernameAlreadyTaken:
{
ChatMessages += String.Format("({1}) Username {0} is already taken!\n", Username, message.MessageCreationTime.ToString("G"));
_networkStream.Close();
_tcpClient.Close();
_tcpClient = new TcpClient();
_worker.CancelAsync();
break;
}
default:
//do nothing
break;
}
}
}