// Displays menu of powers for sale
public static void DisplayMenu(List <Power> powers, List <Power> BoughtPower)
{
Console.WriteLine($"Total Purchases: {SubTotal}\n");
for (int i = 0; i < powers.Count; i++)
{
Console.WriteLine($"Power {i+1}: {AddSpaces(powers[i].Name)} {AddSpaces(powers[i].Category)} {AddSpaces(powers[i].Price)}");
}
// User chooses to buy power or checkout.
int choice;
Console.WriteLine("Please select:");
Console.WriteLine("1) Buy" +
"\n2) Checkout");
Validator.IsInRangeIndex(Console.ReadLine(), 1, 2, out choice);
if (choice == 0)
{
int index;
Console.WriteLine();
Console.WriteLine("Select index of the power you'd like.");
Validator.IsInRangeIndex(Console.ReadLine(), 1, powers.Count, out index);
// Display more info on the power and allow user to buy
PurchaseView.Purchase(powers[index], powers, BoughtPower);
}
else if (choice == 1)
{
// User can't checkout with nothing in the cart.
if (BoughtPower.Count == 0)
{
Console.WriteLine("There is nothing in your cart. Any key to return...");
Console.ReadKey();
Console.Clear();
DisplayMenu(powers, BoughtPower);
}
else
{
Console.Clear();
// Display contents of the shopping cart
ReceiptView.PrintCart(BoughtPower, powers);
}
}
}
// When user want to pay with a check
public static void PayCheck()
{
string pattern = "^\\d{4}$";
Regex rgx = new Regex(pattern);
Console.Write($" Your total is: ${MenuView.FinalTotal} Please enter a check number: ");
string userInput = Console.ReadLine().Trim();
bool isMatch = rgx.IsMatch(userInput);
// If the user enters a valid check number, print a receipt
if (isMatch)
{
ReceiptView.PrintReciept(VendingMachine.PurchasedItems); // final case
}
else
{
Console.WriteLine($"Your total is: ${MenuView.FinalTotal}. Please enter a valid chack number as a 4 digit integer. Please try again.");
PayCheck();
}
}
// If the user wants to pay cash.
public static void PayCash()
{
bool enoughCash = false;
decimal cash = 0;
while (!enoughCash)
{
Console.Write("Please insert cash: ");
decimal.TryParse(Console.ReadLine(), out cash);
if ((double)cash > MenuView.FinalTotal)
{
enoughCash = true;
}
else
{
Console.WriteLine("You didn't enter enough cash.");
}
}
// set number of decimal places in user input to the decimalPlaces
int decimalPlaces = BitConverter.GetBytes(decimal.GetBits(cash)[3])[2];
if (decimalPlaces != 0 && decimalPlaces != 2 || cash == 0)
{
Console.WriteLine("Invalid Input. Enter currency formatted as $dd.cc Please try again.");
PayCash();
}
// If the user enters a valid amount of cash, print receipt.
else
{
Console.Clear();
Console.WriteLine($"You paid: ${cash}. The total is ${MenuView.FinalTotal}. Here is your change: ${cash - (decimal)MenuView.FinalTotal} ");
ReceiptView.PrintReciept(VendingMachine.PurchasedItems); // final case
}
}
// When user want to pay with a credit card
public static void PayCredit()
{
Console.Write($"Your total is: ${MenuView.FinalTotal}.");
Regex ccNumRgx = new Regex("^\\d{16}$");
Regex cvvRgx = new Regex("^\\d{3}$");
Regex monthCheck = new Regex(@"^(0[1-9]|1[0-2])$");
Regex yearCheck = new Regex(@"^20[0-9]{2}$");
bool validCcNum = false;
bool validCvv = false;
bool validExp = false;
// Validate CCNum
while (!validCcNum)
{
Console.Write("Please insert your credit card number: ");
string ccNum = Console.ReadLine();
bool isMatchCcNum = ccNumRgx.IsMatch(ccNum);
if (isMatchCcNum)
{
validCcNum = true;
}
else
{
Console.WriteLine("Invalid input. Credit card must be 16 digits long and have no spaces.");
}
}
//Validate CVV
while (!validCvv)
{
Console.Write("Please enter your CVV: ");
string cvv = Console.ReadLine();
bool isMatchCvv = cvvRgx.IsMatch(cvv);
if (isMatchCvv)
{
validCvv = true;
}
else
{
Console.WriteLine("Invalid input. CVV must be 3 digits long and have no spaces.");
}
}
// Validate ExpDate
while (!validExp)
{
Console.Write("Please enter your expiration date: ");
string expiryDate = Console.ReadLine();
string[] dateParts = expiryDate.Split('/'); //expiry date in from MM/yyyy
// Validate month
try
{
if (!monthCheck.IsMatch(dateParts[0]) || !yearCheck.IsMatch(dateParts[1])) // <3 - 6>
{
Console.WriteLine("Invalid input. Please input as MM/YYYY"); // ^ check date format is valid as "MM/yyyy"
}
else
{
validExp = true;
}
}
catch (Exception e)
{
Console.WriteLine("Invalid input. Please input as MM/YYYY");
}
// Validate that the date entered makes sense in the context of today's date
int year = int.Parse(dateParts[1]);
int month = int.Parse(dateParts[0]);
int lastDateOfExpiryMonth = DateTime.DaysInMonth(year, month); //get actual expiry date
DateTime cardExpiry = new DateTime(year, month, lastDateOfExpiryMonth, 23, 59, 59);
// check expiry greater than today & within next 6 years <7, 8>>
Console.WriteLine(cardExpiry > DateTime.Now && cardExpiry < DateTime.Now.AddYears(6));
}
// If all fields are valid, print receipt.
if (validCcNum && validCvv && validExp)
{
ReceiptView.PrintReciept(VendingMachine.PurchasedItems); // final case
}
}
