Exemple #1
0
        // 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
            }
        }