CODEMARTC101

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

public class Item
{
    /// <summary>
    /// A class that is used for products in a store.
    /// Each product has the cost, stock level and product name.
    /// </summary>
    public int cost = 0;
    public int stock = 0;
    public string name = ""; // name is set blank as set with Constructor Method

    // This is a constructor method. It is part of the class code and used so
    // that when you creat an object from your class you can also assign
    // their stats within the brackets.
    public Item(int itemCost, int itemStock, string itemName)
    {
        cost = itemCost;
        stock = itemStock;
        name = itemName;
    }
}

namespace ShoppingCartExample
{
    /// <summary>
    /// A simple shopping cart program with preset product and stock values
    /// that uses all the subjects that have been covered on Coding 101.
    ///
    /// This program does use arrays which have not yet been covered however
    /// as a personal learning adventure for myself who was having difficulties
    /// with arrays, this has been very usefull.
    /// </summary>
    class Program
    {
        static void Main(string[] args)
        {
            PrintWelcome();
            // Set up our stock of items (Cost / Stock / Name)
            // Thanks to the way the class was coded above I can set
            // the value of each criteria of the object as I go.
            Item banana = new Item(1, 5, "Banana");
            Item apple = new Item(1, 3, "Apple");
            Item pear = new Item(1, 7, "Pear");
            Item microBurger = new Item(4, 3, "Microwave Burger");
            Item microRoast = new Item(6, 2, "Beef Dinner");
            Item cola = new Item(2, 7, "Can of Cola");
            Item lemonade = new Item(2, 9, "Can of Lemonade");
            Item oJ = new Item(2, 7, "Orange Juice");
            Item milk = new Item(2, 4, "Fresh Local Milk");
            Item chicken = new Item(3, 3, "Fresh Chicken");
            Item beef = new Item(3, 2, "Fresh Beef");
            Item unknownmeat = new Item(300, 1, "Unknown Meat...");
            Item lamb = new Item(3, 6, "Fresh Lamb");
            // Create an Object Array to hold our item objects
            // I do this as it makes it easier to group our similar items
            // together as well as for easier manipulation
            // and listing our items later on.
            Item[] fruits = { banana, apple, pear };
            Item[] microwaves = { microBurger, microRoast };
            Item[] drinks = { cola, lemonade, oJ, milk };
            Item[] meats = { chicken, beef, unknownmeat, lamb };

            // The visual stuff starts from this point here.
            Console.Clear();
            while (true) // Run the program on a loop so it only ends when we want it to
            {
                PrintWelcome(); // Method / Function that is create at the bottom of the code
                Console.ForegroundColor = ConsoleColor.Blue;
                Console.WriteLine("PLEASE SELECT A CATAGORY TO VIEW");
                Console.ResetColor();
                Console.WriteLine();
                Console.WriteLine("FRUIT \t\t(1)");
                Console.WriteLine("READY MEALS \t(2)");
                Console.WriteLine("DRINKS \t\t(3)");
                Console.WriteLine("MEATS \t\t(4)");
                Console.WriteLine("exit \t\t(5)");
                Console.WriteLine();
                Console.Write("YOUR CHOICE (FROM 1 TO 5): ");
                int choice = Int16.Parse(Console.ReadLine()); // Expect an Int
                Console.WriteLine();

                if (choice == 1)
                {
                    ListItems(fruits); // Send our array of fruit objects to ListItem
                }
                else if (choice == 2)
                {
                    ListItems(microwaves);
                }
                else if (choice == 3)
                {
                    ListItems(drinks);
                }
                else if (choice == 4)
                {
                    ListItems(meats);
                }
                else if (choice == 5)
                {
                    break; // Ends the program
                }
                else
                {
                    Console.Clear();
                    continue; // If anything else is entered then loop
                }
            }
        }

        // ### Methods / Functions start here ######################

        static void ListItems(Item[] item) // Recieve what ever array is sent (fruits, meats etc)
        {
            Console.Clear(); // Clear in case anything is in console to make it look nicer
            PrintWelcome();
            Console.ForegroundColor = ConsoleColor.Blue;
            Console.WriteLine("LIST OF STOCK");
            Console.ResetColor();
            Console.WriteLine();
            // This names all the objects in the array as products and loops
            // through them all printing their stats
            foreach (var product in item)
            {
                Console.WriteLine("Name: {0} \tStock: {1} \tPrice: ${2}", product.name, product.stock, product.cost);
            }
            Console.WriteLine();
            Console.ForegroundColor = ConsoleColor.Blue;
            Console.WriteLine("WHAT WOULD YOU LIKE TO DO?");
            Console.ResetColor();
            Console.WriteLine();
            Console.WriteLine("PURCHASE AN ITEM \t(1)");
            Console.WriteLine("RETURN TO MAIN MENU \t(2)");
            Console.WriteLine();
            Console.Write("YOUR CHOICE (1 OR 2): ");
            int choice = Int16.Parse(Console.ReadLine());
            if (choice == 1)
            {
                PurchaseItem(item); // Send the same Arra of objects that was sent to us
                                    // previously to the PurchaseItem Method / Function
            }
            else
            {
                Console.Clear();
                return; // Return to the main menu loop
            }
        }


        static void PurchaseItem(Item[] item)
        {
            Console.Clear();
            PrintWelcome();
            Console.ForegroundColor = ConsoleColor.Blue;
            Console.WriteLine("WHICH ITEM DO YOU WISH TO PURCHASE?");
            Console.ResetColor();
            Console.WriteLine();
            int listNum = 1; // Create list number to add to the menu choice
            // This loops through each object (product) and lists the specified info
            // that we ask it to and then adds a menu choice number next to it.
            // Since each array could have any amount of products we get it to use
            // listNum which will start at one and increase for each product and put
            // the increased number next to it so we have a number next to every
            // product without knowing how many products are sent to us.
            foreach (var product in item)
            {
                Console.WriteLine("Name: {0} \tStock: {1}", product.name, product.stock + " \t(" + listNum + ")");
                listNum++;
            }
            Console.WriteLine();
            listNum--;
            Console.Write("YOUR CHOICE (FROM 1 TO {0}): ", listNum); // Use List num for the same
                                                                     // reason above. We dont know
                                                                     // how many we have
            int choice = Int16.Parse(Console.ReadLine());
            choice--; // Since C# starts lists at 0 but we have the first option as 1 we
                      // choice-- so that it matches with the computers listing methods
            Console.WriteLine();
            Console.Write("HOW MANY?: ");
            int many = Int16.Parse(Console.ReadLine());

            if (item[choice].stock >= many) // if we have enough stock then deduct from stock total
            {
                item[choice].stock = item[choice].stock - many;
                Console.WriteLine();
                Console.WriteLine("PURCHASE SUCCESFUL");
                Console.WriteLine();
                Console.WriteLine("PRESS ENTER TO RETURN TO THE MAIN MENU");
                Console.ReadLine();
            }
            else
            {
                Console.WriteLine();
                Console.WriteLine("SORRY THERE IS NOT ENOUGH STOCK AVAILABLE");
                Console.WriteLine();
                Console.WriteLine("PRESS ENTER TO RETURN TO THE MAIN MENU");
                Console.ReadLine();
            }
            Console.Clear();
        }

        static void PrintWelcome()
        {
            Console.ForegroundColor = ConsoleColor.Blue;
            Console.WriteLine("############################################CODE*MART ver.1##");
            Console.WriteLine("##  _____ _____ ____  _____ _____ _____ _____ _____ _____  ##");
            Console.WriteLine("## |     |     |    '|   __| | | |     |  _  | __  |_   _| ##");
            Console.WriteLine("## |   --|  |  |  |  |   __|-   -| | | |     |    -| | |   ##");
            Console.WriteLine("## |_____|_____|____/|_____|_|_|_|_|_|_|__|__|__|__| |_|   ##");
            Console.WriteLine("## EXAMPLE CODE DESIGNED BY DEAN T (@Dosk3n) FOR CODING101 ##");
            Console.WriteLine("##                                                         ##");
            Console.WriteLine("#############################################################");
            Console.WriteLine();
            Console.ResetColor();
        }
    }
}