// Method to control what happens when a pin number has been entered
public void EnterPin()
{
if (account.checkPin(Int32.Parse(userInput))) // Convert userInput to an int and compare against the real pin
{
DisplayMenuOptions();
MessageBank(account.getAccountNum() + " entered their pin number");
}
else // If the pin wasn't valid
{
Screen.Items.Clear(); // Clear the screen
Screen.Items.Add(lastMessage); // Add back the last message
Screen.Items.Add("Incorrect pin"); // Tell the user that the pin was incorrect
userInput = "";
MessageBank(account.getAccountNum() + " entered an incorrect pin");
if (account.CheckFail()) // Check if the account has been incorrectly accessed too many times
{
Screen.Items.Clear();
Screen.Items.Add("Too many attempts"); // Tell the user that they have attempted too many times
lastMessage = "Enter your account number:";
Screen.Items.Add(lastMessage);
mode = 0; // Tell the system that an account number is expected
MessageBank(account.getAccountNum() + "'s account has been locked");
}
}
}
// check provided by user data and proceed to the next step. Called by 2 methods above
private void nextStep()
{
switch (state)
{
case 0:
activeAccount = findAccount(textBox1.Text);
if (activeAccount != null) // if account found, go to the next step
{
textBox1.Text = "Enter your pin here";
screen1();
pinTry = 4;
}
else // if account was not found, program stays in the same state
{
textBox1.Text = "Insert your card here";
text[4].Text = "Wrong card";
}
break;
case 1:
try
{
int input = Convert.ToInt32(IsDigitsOnly(textBox1.Text));
if (activeAccount.checkPin(input)) // if entered pin is correct
{
textBox1.Text = "";
textBox1.PasswordChar = '\0';
screen2();
}
else // if pin is wrong
{
pinFail();
}
}
catch (Exception) // if pin is wrong
{
pinFail();
}
break;
case 6:
//Take user input and deposit it into their acount
try
{
int depositValue = Convert.ToInt32(IsDigitsOnly(textBox1.Text));
if (depositValue != 0) //Checks if deposit value is
{
int oldBal = activeAccount.getBalance();
Thread.Sleep(3000);
activeAccount.setBalance(oldBal + depositValue);
activeAccount.Unlock();
//Go to stage 2
textBox1.Text = "";
textBox1.PasswordChar = '\0';
screen2();
}
else
{
textBox1.Text = "Invalid value";
}
}
catch (Exception) // if user input causes error
{
textBox1.Text = "Invalid value";
}
break;
case 7:
//read the amount of money provided by user to the taken from account
int userCash = Convert.ToInt32(IsDigitsOnly(textBox1.Text));
if (userCash % 5 == 0) // amount must be devisible by 5
{
if (datarace)
{
takeCashTrue(userCash);
}
else
{
takeCashFalse(userCash);
}
}
else
{
textBox1.Text = "";
label1.Text = "Enter Amount\n Invalid number";
}
break;
default:
textBox1.Text = "";
break;
}
}
private void EnterButton_Click(object sender, EventArgs e)
{
// Checks if there is something in box when enter is pressed
if (DisplayInput.Text.Length > 0)
{
// Withdraw stage
if (withdraw == true)
{
int input = Convert.ToInt32(DisplayInput.Text);
// Only allows certain input and if it's divisble by 5
if (input == 0 || input > 400 || input % 5 != 0)
{
MessageBox.Show("Please enter a valid withdrawal amount (must be divisible by 5)");
DisplayInput.Text = "";
}
else
{
withdrawInstructions(input);
changePanel(panelWithdraw);
DisplayInstruction.Text = "Please select a withdraw option";
allignText();
DisplayInput.Text = "";
}
}
//Account number stage
else if (inputPin == false)
{
int input = Convert.ToInt32(DisplayInput.Text);
DisplayInput.Text = "";
// Tries to find account
Boolean found = false;
for (int i = 0; i < this.ac.Length - 1; i++)
{
if (ac[i].getAccountNum() == input)
{
activeAccount = ac[i];
// atmManager.log("Account successfully logged in.");
DisplayInstruction.Text = "Please enter your pin";
allignText();
inputPin = true;
found = true;
account = false;
}
}
if (found == false)
{
MessageBox.Show("Please write a valid account number");
}
}
else
{
// Pin input stage
if (check >= 0)
{
int input = Convert.ToInt32(DisplayInput.Text);
DisplayInput.Text = "";
// If pin is correct
if (activeAccount.checkPin(input) == true)
{
//Display the options and change panel
atmManager.log("Account number " + activeAccount.getAccountNum() + " successfully logged in.");
inputPin = false;
changePanel(accountPanel);
DisplayInstruction.Text = "Select an option you would like to do";
allignText();
check = 3;
}
else
{
// if pin is wrong
attempts();
}
}
}
}
else
{
// if the user presses enter when it's blank dispaly certain error message
if (inputPin == true)
{
attempts();
}
else
{
if (withdraw == true)
{
MessageBox.Show("Please Type a valid withdrawal amount");
}
else
{
MessageBox.Show("Please enter a valid account number");
}
}
}
}
// When green enter button is pressed
private void enterBtn_Click(object sender, EventArgs e)
{
if (loginTextbox.Text == "")
{
wrongInputLbl.Text = "Ivalid input, Please try again";
}
else if (state == 1) // Account Number State
{
activeAccount = findAccount(Int32.Parse(loginTextbox.Text));
loginTextbox.Text = "";
if (activeAccount != null) // If account number successful
{
state = 2; // PIN State
display();
}
else
{
wrongInputLbl.Text = "Wrong Account Number";
}
}
else if (state == 2) // PIN State
{
if (activeAccount.checkPin(Int32.Parse(loginTextbox.Text))) // If PIN correct
{
state = 3; // Main Menu State
display();
incorrectPIN = 0;
}
else
{
incorrectPIN++;
wrongInputLbl.Text = "Wrong PIN";
}
loginTextbox.Text = "";
}
else if (state == 6) // Choose Amount State
{
if (usingSemaphore)
{
activeAccount.accessed.WaitOne();
}
if (activeAccount.decrementBalance(Int32.Parse(loginTextbox.Text), usingSemaphore))
{
state = 5;
}
else
{
state = 7;
}
if (usingSemaphore)
{
activeAccount.accessed.Release();
}
display();
loginTextbox.Text = "";
}
if (incorrectPIN >= 3) // If the PIN is incorrect 3 times deactivate the acoount.
{
activeAccount.destroyAccount();
state = 1;
display();
incorrectPIN = 0;
wrongInputLbl.Text = "PIN wrong 3 times. Account deactivated.";
}
}
