// Handle send message request
public static void SendMessage()
{
Console.WriteLine("Please enter your message or enter 'x' to exit:");
string msg = Console.ReadLine();
if (String.IsNullOrWhiteSpace(msg))
{
Console.WriteLine("Cannot send empty message");
}
else
{
if (msg != "x")
{
bool?succeeded = Chat_EventHandler.Send(msg);
if (!succeeded.HasValue)
{
Console.WriteLine("Message length limit exceeded - max. 150 characters!");
}
else
{
if (!succeeded.Value)
{
Console.WriteLine("Server did not respond, please check your internet connection..");
}
}
}
}
}
private static int _nMessagesDisplay = 20; //magic number//
// Handle register request
public static void Register()
{
Console.Write("Enter User Name to Register or 'x' to cancel: ");
Notfound: //will be used in goto statement//
{
String nickname = Console.ReadLine();
if (nickname != "x")
{
if (InputGroupID(out int groupID))
{
bool?succeeded = Chat_EventHandler.Register(nickname, groupID);
if (!succeeded.HasValue)
{
Console.WriteLine("Error: nickname or Group ID is not valid");
Console.WriteLine("Please pick another user name or 'x' to cancel");
goto Notfound;
}
else
{
if (succeeded.Value)
{
Console.WriteLine("Registration was Successfull, Welcome to ISE_182 chat!");
}
else
{
Console.WriteLine("Error: User name already exist.");
Console.WriteLine("Please pick another user name or 'x' to cancel");
goto Notfound;
}
}
}
}
}
}
// Handle login request, get the info and send to BL
public static bool Login()
{
Console.WriteLine("Enter user name for login or 'x' to cancel: ");
string nickname = Console.ReadLine();
if (nickname != "x")
{
if (InputGroupID(out int groupID))
{
bool logged = Chat_EventHandler.Login(nickname, groupID);
if (logged)
{
Console.WriteLine(nickname + "[" + groupID + "]" + " Logged-in Successfully");
System.Threading.Thread.Sleep(1000);
GUI.DisplayUserGUI(nickname);
}
else
{
Console.WriteLine("Error: user does not exist!");
}
return(logged);
}
}
return(false);
}
// Logout the user from the application and return him to visitor menu
public static void Logout()
{
string nickname = Chat_EventHandler.Logout();
Console.WriteLine(nickname + " Logged-off Successfully");
System.Threading.Thread.Sleep(1000);
GUI.DisplayVisitorGUI();
}
// Retriving messages from the server
public static void RetreiveMessages()
{
if (Chat_EventHandler.RetreiveMessages())
{
Console.WriteLine("Messages retreived successfuly!");
}
else
{
Console.WriteLine("Server did not respond, please check your internet connection..");
}
}
// handle exiting the application for loggedin user
public static void Exit()
{
Chat_EventHandler.Exit();
Console.Write("Thank you for using ISE_182 chat!");
//moving dot while "Thank You" message is shown//
Console.Write(".");
System.Threading.Thread.Sleep(1000);
Console.Write(".");
System.Threading.Thread.Sleep(1000);
Console.Write(".");
System.Threading.Thread.Sleep(1000);
}
// Display Messages By input user information
public static void DisplayMessagesByUser()
{
Console.WriteLine("Enter user name for filtering or 'x' to cancel: ");
string nickname = Console.ReadLine();
if (nickname != "x")
{
if (InputGroupID(out int groupID))
{
String msgs = Chat_EventHandler.DisplayMessagesByUser(nickname, groupID);
GUI.DisplayInfo("messages of " + nickname + "[" + groupID + "]", msgs);
}
}
}
// Display last messages, cap is _nMessagesDisplay
public static void DisplayMessages()
{
string messages = Chat_EventHandler.DisplayNmessages(_nMessagesDisplay);
GUI.DisplayInfo(String.Format("last {0} messages", _nMessagesDisplay), messages);
}
