/// <summary>
/// Creates an interactive user menu for logged users.
/// </summary>
public static void Menu()
{
char menuChoice = '0';
bool exit = false;
while (!exit)
{
Console.ForegroundColor = ConsoleColor.Cyan;
string menu = "*********************************************************************************************************************" + "\r\n" +
"Menu:" + "\r\n" +
"*********************************************************************************************************************" + "\r\n" +
"a. Login/Logout." + "\r\n" +
"b. Retrieve last 10 messages from server." + "\r\n" +
"c. Display last 20 retrieved messages (without retrieving new ones from the server)." + "\r\n" +
"d. Display all retrieved messages (without retrieving new ones from the server)" + "\r\n" +
"e. Write (and send) a new message (max. Length 150 characters)." + "\r\n" +
"f. Delete local message cache (previous message history)." + "\r\n" +
"g. Exit (logout first)." + "\r\n" +
"*********************************************************************************************************************" + "\r\n" +
"Please choose your action: ";
Console.Write(menu);
menuChoice = Console.ReadKey().KeyChar;
Console.ResetColor();
Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine();
switch (menuChoice)
{
case ('A'):
case ('a'):
NewScreen();
if (!ChatRoom._loggedInUser.logged)
{
Login(!ChatRoom._loggedInUser.logged);
}
else
{
Logout();
}
break;
case ('B'):
case 'b':
NewScreen();
string checkError = ChatRoom.RetrieveTenMessages();
if (!(checkError.Length < 6))
{
ErrorMessage(1, "\r\nWhile trying to retrieve messages from server the following error occured:");
ErrorMessage(3, "\r\n" + checkError + "\r\n\r\n");
}
else
{
MarkerMessage(1, "\r\nRetrieved " + checkError + " new messages from server.\r\n\r\n");
}
break;
case ('C'):
case 'c':
{
NewScreen();
const int messagesToDisplay = 20;
int availableMessages = ChatRoom._messages.messages.Count;
if (availableMessages >= 20)
{
MarkerMessage(1, "\r\nDisplaying " + messagesToDisplay + " messages:\r\n\r\n");
}
else
{
MarkerMessage(1, "\r\nDisplaying " + availableMessages + " messages:\r\n\r\n");
}
string messages = DisplayMessages(ChatRoom.DisplayMessages(messagesToDisplay));
if (messages == System.String.Empty)
{
ErrorMessage(1, "No Messages to display at the moment.\r\nTry to retrieve new messages from server.\r\n\r\n");
}
}
break;
case ('D'):
case 'd':
{
NewScreen();
MarkerMessage(1, "\r\nDisplaying " + ChatRoom._messages.messages.Count + " messages:\r\n\r\n");
string messages = DisplayMessages(ChatRoom.DisplayAllMessages());
if (messages == System.String.Empty)
{
ErrorMessage(1, "No Messages to display at the moment.\r\nTry to retrieve new messages from server.\r\n\r\n");
}
break;
}
case ('E'):
case 'e':
NewScreen();
Console.Write("\r\nEnter your message:");
WriteAndSend();
break;
case ('F'):
case 'f':
NewScreen();
ClearMessages();
break;
case 'g':
case ('G'):
NewScreen();
if (Exit())
{
exit = true;
}
break;
default:
NewScreen();
ErrorMessage(2, "\r\nPlease enter a valid menu selection.\r\n\r\n");
break;
}
}
Console.ResetColor();
}
