private void ServerConnectionClosed(object sender, TcpClientConnectionEventArgs e)
{
if (_onlineUsers.TryRemove(e.TcpClient, out var user) && user != null)
{
OnUserSignOut(new MidgeUserEventArgs(user));
}
}
private void ServerConnectionOpened(object sender, TcpClientConnectionEventArgs e)
{
_onlineUsers.TryAdd(e.TcpClient, null);
}