private static void ServerListenerLoop()
{
try
{
while (true)
{
Response server_response = DataTransferHelper.GetResponseFromServer(Client);
switch (server_response.ResponseType)
{
case "user_signin":
{
UserSignInResponse userSignInResponse = server_response as UserSignInResponse;
InvokeHelper.ApplicationInvoke(() => _chatViewModel.Users.Add(userSignInResponse.User));
break;
}
case "user_signout":
{
UserSignOutResponse userSignOutResponse = server_response as UserSignOutResponse;
for (int i = 0; i < _chatViewModel.Users.Count; i++)
{
if (_chatViewModel.Users[i].ID == userSignOutResponse.User.ID)
{
InvokeHelper.ApplicationInvoke(() => _chatViewModel.Users.RemoveAt(i));
}
}
break;
}
case "auth":
{
if (server_response.Ok)
{
ClientUser = (server_response as AuthResponse).User;
InvokeHelper.ApplicationInvoke
(
() =>
{
ChatView chatView = new ChatView();
_chatViewModel = chatView.DataContext as ChatViewModel;
SetView(chatView);
}
);
}
else
{
if (server_response.Error == "user_name_not_exists")
{
throw new InvalidUserNameException();
}
else if (server_response.Error == "invalid_password")
{
throw new InvalidPasswordException();
}
else if (server_response.Error == "user_is_connected")
{
throw new Exception("User is connected");
}
}
break;
}
case "registration":
{
if (server_response.Ok)
{
InvokeHelper.ApplicationInvoke(() => ShowSnackBarMessage("User successfully registered"));
Disconnect();
}
else
{
if (server_response.Error == "user_name_exists")
{
throw new InvalidUserNameException("This user name already exists");
}
}
break;
}
case "message":
{
InvokeHelper.ApplicationInvoke(() => _chatViewModel.Messages.Add((server_response as MessageResponse).Message));
break;
}
case "ban":
{
throw new UserBannedException();
}
default:
break;
}
}
}
catch (UserBannedException e)
{
InvokeHelper.ApplicationInvoke(() => ShowSnackBarMessage(e.Message));
}
catch (InvalidUserNameException e)
{
InvokeHelper.ApplicationInvoke(() => ShowSnackBarMessage(e.Message));
}
catch (InvalidPasswordException e)
{
InvokeHelper.ApplicationInvoke(() => ShowSnackBarMessage(e.Message));
}
catch (SocketException)
{
InvokeHelper.ApplicationInvoke(() => ShowSnackBarMessage("Connection with server was destroyed."));
}
catch (Exception)
{}
finally
{
IsConnected = false;
Client?.Close();
Client = null;
_chatViewModel = null;
ClientUser = null;
InvokeHelper.ApplicationInvoke(() => SetView(new StartView()));
}
}
public void AddUser(User user)
{
InvokeHelper.ApplicationInvoke(() => _userDataBase.Add(user));
AddUserToDataBase(user);
}
