//Program by André Davis 20191003

using System;

namespace Lab6
{
    public class Program
    {
        public static void Main(string[] args)
        {
            /* Declare variables
                Five Items:
                   Read in the quantity ordered, an integer
                   Read in the item name, a string
                   Read in the item price, a decimal
             */
            string userInput;

            int quanityOrdered1;
            string itemName1;
            decimal itemPrice1;

            int quanityOrdered2;
            string itemName2;
            decimal itemPrice2;

            int quanityOrdered3;
            string itemName3;
            decimal itemPrice3;

            int quanityOrdered4;
            string itemName4;
            decimal itemPrice4;

            int quanityOrdered5;
            string itemName5;
            decimal itemPrice5;

            //Get input from user

            //Get Item 1
            Console.WriteLine("Enter Item Quantity: ");
            userInput = Console.ReadLine();
            int.TryParse(userInput, out quanityOrdered1);

            Console.WriteLine("Enter Item Name: ");
            userInput = Console.ReadLine();
            itemName1 = userInput;

            Console.WriteLine("Enter Item Price: ");
            userInput = Console.ReadLine();
            decimal.TryParse(userInput, out itemPrice1);

            //Get Item 2
            Console.WriteLine("Enter Item Quantity: ");
            userInput = Console.ReadLine();
            int.TryParse(userInput, out quanityOrdered2);

            Console.WriteLine("Enter Item Name: ");
            userInput = Console.ReadLine();
            itemName2 = userInput;

            Console.WriteLine("Enter Item Price: ");
            userInput = Console.ReadLine();
            decimal.TryParse(userInput, out itemPrice2);

            //Get Item 3
            Console.WriteLine("Enter Item Quantity: ");
            userInput = Console.ReadLine();
            int.TryParse(userInput, out quanityOrdered3);

            Console.WriteLine("Enter Item Name: ");
            userInput = Console.ReadLine();
            itemName3 = userInput;

            Console.WriteLine("Enter Item Price: ");
            userInput = Console.ReadLine();
            decimal.TryParse(userInput, out itemPrice3);

            //Get Item 4
            Console.WriteLine("Enter Item Quantity: ");
            userInput = Console.ReadLine();
            int.TryParse(userInput, out quanityOrdered4);

            Console.WriteLine("Enter Item Name: ");
            userInput = Console.ReadLine();
            itemName4 = userInput;

            Console.WriteLine("Enter Item Price: ");
            userInput = Console.ReadLine();
            decimal.TryParse(userInput, out itemPrice4);

            //Get Item 5
            Console.WriteLine("Enter Item Quantity: ");
            userInput = Console.ReadLine();
            int.TryParse(userInput, out quanityOrdered5);

            Console.WriteLine("Enter Item Name: ");
            userInput = Console.ReadLine();
            itemName5 = userInput;

            Console.WriteLine("Enter Item Price: ");
            userInput = Console.ReadLine();
            decimal.TryParse(userInput, out itemPrice5);


            //Calculations

            //Step a - Calculate and output the total price of the order before any discount ("Subtotal")
            decimal subTotal = (quanityOrdered1 * itemPrice1) + (quanityOrdered2 * itemPrice2)
                               + (quanityOrdered3 * itemPrice3) + (quanityOrdered4 * itemPrice4)
                               + (quanityOrdered5 * itemPrice5);

            Console.WriteLine("Subtotal: $" + subTotal);

            /* Step b - Calculate and out the discount percentage based on the values from input.
                    Discount Calculation Rules:
                       i.   If the customer orders more than 12 items total, they get a 10% discount
                       ii.  If the customer orders more than $50 worth of items, they get a 15% discount (Reuse Subtotal from a)
                       iii. If the customer orders an item named "Pineapple Fritter", they get a 20% discount
                                The || operator can make this easier, but you can do this with several single-conditional if statements if you prefer
                       iv.  If none of these apply, the discount is 0%
             */

            decimal discountPercent = 0.0m; //Start with 0% discount, also fulfills Discount step iv, if no if-statement trigger a discount
            int totalItems = quanityOrdered1 + quanityOrdered2 + quanityOrdered3 + quanityOrdered4 + quanityOrdered5;

            //Discount step i
            if (totalItems > 12)
                discountPercent = 0.10m; //Set discount to 10%

            //Discount step ii
            if (subTotal > 50.0m)
                discountPercent = 0.15m; //Set discount to 15%

            //Discount step iii
            string fritter = "Pineapple Fritter";
            if (itemName1 == fritter
                || itemName2 == fritter
                || itemName3 == fritter
                || itemName4 == fritter
                || itemName5 == fritter)
                discountPercent = .20m; //Set discount to 20, notice here if you use postfix m, you're allowed to do .20 and omit the 0 before decimal point.

            Console.WriteLine("Discount: " + discountPercent * 100 + "%");

            //Step c - Calculate and output the price after discount is subtracted ("Total")
            decimal total = subTotal - (subTotal * discountPercent);
            Console.WriteLine("Total: $" + total);


            //Keep console window open.
            Console.WriteLine(); //Create empty space.
            Console.WriteLine("Press any key to exit...");
            Console.ReadLine();
        }
    }
}