public async Task ConnectToRemoteUser(string remoteIpAddress, int remotePortNumber)
{
Console.WriteLine("STATUS: Connecting to remote user");
State = ConnectionState.Connecting;
Sender = await NetworkService.ConnectToRemoteAsync(Sender, remoteIpAddress, remotePortNumber);
if (Sender != null)
{
Console.WriteLine($"RESULT: Connection to {((IPEndPoint)Sender.RemoteEndPoint).Address} established");
}
else
{
Console.WriteLine("RESULT: Connection to remote failed");
Sender = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
State = ConnectionState.Listening;
InfoDisplay.Show("Could not connect to user");
return;
}
Console.WriteLine("STATUS: Sending request data to remote user");
NetworkData request = new NetworkData(LocalUser, NetworkDataType.Request);
bool sent = await NetworkService.SendDataAsync(Sender, request);
if (sent)
{
Console.WriteLine("RESULT: Sending of request data successful");
}
else
{
Console.WriteLine("RESULT: Sending of request data failed");
Sender.Shutdown(SocketShutdown.Both);
InfoDisplay.Show("Could not send request to user");
State = ConnectionState.Listening;
}
}
private void ProcessResponse(NetworkData networkData)
{
Console.WriteLine("STATUS: Processing response");
Console.WriteLine($"RESULT: Received a response of type {networkData.ResponseType}");
switch (networkData.ResponseType)
{
case ResponseType.Exit:
ConnectionState tempState = State;
State = ConnectionState.Listening;
if (tempState == ConnectionState.Chatting)
{
Application.Current.Dispatcher.Invoke(() =>
{
ExitChat();
});
InfoDisplay.Show($"{RemoteUser.UserName} left the chat");
}
else
{
InfoDisplay.Show($"{RemoteUser.UserName} canceled their chat request");
}
break;
case ResponseType.Accept:
State = ConnectionState.Chatting;
InfoDisplay.Show($"{RemoteUser.UserName} accepted your chat request");
break;
case ResponseType.Decline:
State = ConnectionState.Listening;
InfoDisplay.Show($"{RemoteUser.UserName} declined your chat request");
break;
case ResponseType.Buzz:
if (State == ConnectionState.Chatting)
{
System.Media.SystemSounds.Beep.Play();
}
break;
case ResponseType.Disconnect:
ConnectionState prevState = State;
State = ConnectionState.Listening;
if (prevState == ConnectionState.Chatting)
{
Application.Current.Dispatcher.Invoke(() =>
{
ExitChat();
});
}
InfoDisplay.Show($"{RemoteUser.UserName} disconnected from application");
break;
case ResponseType.None:
Console.WriteLine("ERROR: Network data is not a response");
break;
}
}