public static void Main()
{
ATM a = new ATM();
SUDO_MAIN: // from MAIN MENUS logic // to avoid re-initilialize ATM class!!
int getAtm_no = 0;
UI_home(); // Homepage
// Login Page logic - Do not mess it up!!
LOGIN:
int isValidLogin = UI_login(ref a, ref getAtm_no); // calls login UI which return integers
switch (isValidLogin)
{
case -1:
UI_error("Alphabets Not Allowed");
goto LOGIN;
case 1:
goto MAIN_MENU; // Goto Main Menus if valid user
case 2:
UI_error("Invalid Password");
goto LOGIN;
case 3:
UI_error("Invalid Account Number");
goto LOGIN;
default:
UI_error("Something Wrong in GUI_login()!");
Main();
break;
}
//MAIN MENUS logic
MAIN:
MAIN_MENU: // from Login Page
while (true)
{
mnuChoice = UI_main(ref getAtm_no); // call MAIN_UI
switch (mnuChoice)
{
case -1:
UI_error("Alphabets Not Allowed");
goto MAIN;
case 1:
a.deposit(getAtm_no);
break;
case 2:
a.withdraw(getAtm_no);
break;
case 3:
a.balance(getAtm_no);
break;
case 4:
a.tnfr_fund(getAtm_no);
break;
case 5:
a.mini_stmt(getAtm_no, false); //false for full n no.of tranx recordings
break;
case 6:
a.chng_pin(getAtm_no);
break;
case 7:
a.mini_stmt(getAtm_no, true); //true for last 5 noof tranx recordings
break;
case 8:
UI_msgbox("Thankyou for visting T6G ATM.\n");
GC.SuppressFinalize(a); //Garbage Collection
goto SUDO_MAIN;
default:
UI_error("Invalid Choice! [1-8].");
Main();
break;
}
}
}
public static int UI_login(ref ATM u, ref int atm_no)
{
header();
Console.Write(st + "Enter your CARD no: ");
try
{
bool check = false;
int i = 0;
int atm_numb = int.Parse(Console.ReadLine());
atm_no = atm_numb;
for (int j = 0; j < u.usr.Length; j++)
{
if (u.usr[j].atm_no == atm_numb) // valid acc_no
{
check = true;
i = j;
}
}
if (check) // valid acc_no
{
Console.Write(st + "Enter your PIN: ");
string acc_pin = "";;
ConsoleKeyInfo key;
do
{
key = Console.ReadKey(true);
// Backspace Should Not Work
if (key.Key != ConsoleKey.Backspace)
{
acc_pin += key.KeyChar;
Console.Write("*");
}
else
{
if ((acc_pin.Length - 1) != -1)
{
acc_pin = acc_pin.Remove(acc_pin.Length - 1);
Console.Write("\b \b");
}
}
} // Stops Receving Keys Once Enter is Pressed
while (key.Key != ConsoleKey.Enter);
if ((u.usr[i].usrPin == int.Parse(acc_pin)) && (u.usr[i].atm_no == atm_numb)) // valid acc_no && pass
{
return(1); // 1: means successfull
}
else
{
// Boot out usr if exceeded Trails == 3
u.usr[i].usrMaxTrail = count++;
if (u.usr[i].usrMaxTrail >= 2)
{
count = 0;
UI_error("Reached Maxed Limit of Trying");
Main();
}
else
{
//< 3 trials but invalid password
return(2);
}
}
}
else // Invalid account number
{
return(3);
}
}
catch (Exception)
{
return(-1);
}
// defualt : false
return(0);
}