/// <summary>
/// The click event for the OK Button. Does most of the work interfacing with the controller.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void uxOKButton_Click(object sender, EventArgs e)
{
Tuple <AtmStatus, double> s = controller.handle(uxCustomerInputTextbox.Text);
uxCustomerInputTextbox.Text = "";
state = s.Item1;
double balance = s.Item2;
uxDisplayMenuLabel.Text = message[state];
if (state == AtmStatus.ChooseBalanceInquiry)
{
uxDisplayMenuLabel.Text += balance.ToString("00.00") + ". Please press 'OK' to log out.";
}
if (state == AtmStatus.CompletedWithdrawal)
{
uxDisplayMenuLabel.Text += balance.ToString("00.00") + ". Please press 'OK' to log out.";
}
}
/// <summary>
/// The handler method for all of the ATM's states.
/// </summary>
/// <param name="s">The string taken from the input text box on the ATM from.</param>
/// <returns>A tuple containing the next state, as well as the balance of the account when applicable.</returns>
public Tuple <AtmStatus, double> handle(string s)
{
//int acctNum = 0;
switch (state)
{
case AtmStatus.Start:
{
int acctNum = 0;
bool intOK = int.TryParse(s, out acctNum);
if (intOK)
{
if (aDatabase.doesAccountExist(acctNum) == true)
{
if (aDatabase.logInAccount(acctNum) == true)
{
balance = 0;
state = AtmStatus.LoggedIn;
accountNumber = acctNum;
}
else
{
state = AtmStatus.AccountAlreadyInUse;
}
}
else
{
state = AtmStatus.AccountNotFound;
}
}
else
{
state = AtmStatus.AccountNotFound;
}
break;
}
case AtmStatus.AccountNotFound:
{
state = AtmStatus.Start;
break;
}
case AtmStatus.LoggedIn:
{
int input = 0;
bool intOK = int.TryParse(s, out input);
if (intOK)
{
if (input == 1)
{
state = AtmStatus.ChooseBalanceInquiry;
balance = checkBalance(accountNumber);
}
else if (input == 2)
{
state = AtmStatus.ChoseWithdrawalNeedAmount;
balance = checkBalance(accountNumber);
}
else
{
//Add an invalid input state here.
state = AtmStatus.InvalidInput;
}
}
else
{
state = AtmStatus.InvalidInput;
}
break;
}
case AtmStatus.ChooseBalanceInquiry:
{
state = AtmStatus.Start;
aDatabase.logOutAccount(accountNumber);
break;
}
case AtmStatus.ChoseWithdrawalNeedAmount:
{
double withAmmt = 0;
bool doubleOk = Double.TryParse(s, out withAmmt);
if (doubleOk == true)
{
if ((balance - withAmmt) >= 0)
{
completeWithdrawal(accountNumber, withAmmt);
balance = checkBalance(accountNumber);
state = AtmStatus.CompletedWithdrawal;
MessageBox.Show("Here's $" + withAmmt.ToString("00.00") + ", just for you.", "Dolla Dolla Bills Ya'll");
}
else
{
state = AtmStatus.InvalidInput;
}
}
else
{
//Add the invalid input state here.
state = AtmStatus.InvalidInput;
}
break;
}
case AtmStatus.CompletedWithdrawal:
{
state = AtmStatus.Start;
aDatabase.logOutAccount(accountNumber);
break;
}
case AtmStatus.InvalidInput:
{
state = AtmStatus.Start;
aDatabase.logOutAccount(accountNumber);
break;
}
case AtmStatus.AccountAlreadyInUse:
{
state = AtmStatus.Start;
break;
}
default: { break; }
}
return(new Tuple <AtmStatus, double>(state, balance));
}
/// <summary>
/// The handler method for all of the ATM's states.
/// </summary>
/// <param name="s">The string taken from the input text box on the ATM from.</param>
/// <returns>A tuple containing the next state, as well as the balance of the account when applicable.</returns>
public Tuple<AtmStatus, double> handle(string s)
{
//int acctNum = 0;
switch (state)
{
case AtmStatus.Start:
{
int acctNum = 0;
bool intOK = int.TryParse(s, out acctNum);
if (intOK)
{
if (aDatabase.doesAccountExist(acctNum) == true)
{
if (aDatabase.logInAccount(acctNum) == true)
{
balance = 0;
state = AtmStatus.LoggedIn;
accountNumber = acctNum;
}
else
{
state = AtmStatus.AccountAlreadyInUse;
}
}
else
{
state = AtmStatus.AccountNotFound;
}
}
else
{
state = AtmStatus.AccountNotFound;
}
break;
}
case AtmStatus.AccountNotFound:
{
state = AtmStatus.Start;
break;
}
case AtmStatus.LoggedIn:
{
int input = 0;
bool intOK = int.TryParse(s, out input);
if (intOK)
{
if (input == 1)
{
state = AtmStatus.ChooseBalanceInquiry;
balance = checkBalance(accountNumber);
}
else if (input == 2)
{
state = AtmStatus.ChoseWithdrawalNeedAmount;
balance = checkBalance(accountNumber);
}
else
{
//Add an invalid input state here.
state = AtmStatus.InvalidInput;
}
}
else
{
state = AtmStatus.InvalidInput;
}
break;
}
case AtmStatus.ChooseBalanceInquiry:
{
state = AtmStatus.Start;
aDatabase.logOutAccount(accountNumber);
break;
}
case AtmStatus.ChoseWithdrawalNeedAmount:
{
double withAmmt = 0;
bool doubleOk = Double.TryParse(s, out withAmmt);
if (doubleOk == true)
{
if ((balance - withAmmt) >= 0)
{
completeWithdrawal(accountNumber, withAmmt);
balance = checkBalance(accountNumber);
state = AtmStatus.CompletedWithdrawal;
MessageBox.Show("Here's $" + withAmmt.ToString("00.00") + ", just for you.", "Dolla Dolla Bills Ya'll");
}
else
{
state = AtmStatus.InvalidInput;
}
}
else
{
//Add the invalid input state here.
state = AtmStatus.InvalidInput;
}
break;
}
case AtmStatus.CompletedWithdrawal:
{
state = AtmStatus.Start;
aDatabase.logOutAccount(accountNumber);
break;
}
case AtmStatus.InvalidInput:
{
state = AtmStatus.Start;
aDatabase.logOutAccount(accountNumber);
break;
}
case AtmStatus.AccountAlreadyInUse:
{
state = AtmStatus.Start;
break;
}
default: { break; }
}
return new Tuple<AtmStatus, double>(state, balance);
}
/// <summary>
/// The click event for the OK Button. Does most of the work interfacing with the controller.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void uxOKButton_Click(object sender, EventArgs e)
{
Tuple<AtmStatus, double> s = controller.handle(uxCustomerInputTextbox.Text);
uxCustomerInputTextbox.Text = "";
state = s.Item1;
double balance = s.Item2;
uxDisplayMenuLabel.Text = message[state];
if (state == AtmStatus.ChooseBalanceInquiry)
{
uxDisplayMenuLabel.Text += balance.ToString("00.00") + ". Please press 'OK' to log out.";
}
if (state == AtmStatus.CompletedWithdrawal)
{
uxDisplayMenuLabel.Text += balance.ToString("00.00") + ". Please press 'OK' to log out.";
}
}
