Basic Product Management Program by M MUKIT

CS_BasicProductManagement.cpp

using System;
using System.Collections;

namespace BasicProductManagement
{

    class Product
    {
        private static ArrayList arrItems = new ArrayList();
        private string ProductID;
        private double ProductStock;
        private static int count = 1;

        private string ProductIDGenerator()
        {
            DateTime d = DateTime.Now;
            string id = d.Day.ToString() + "." + d.Month.ToString("D2") + "." + count;
            count++;
            return id;
        }

        public Product()
        {
            this.ProductID = ProductIDGenerator();
            this.ProductStock = 0;
            arrItems.Add(this);
        }

        public Product(double quantity)
        {
            this.ProductID = ProductIDGenerator();
            this.ProductStock = quantity;
            arrItems.Add(this);
        }

        public bool Stock(string ProductID, double quantity)
        {
            foreach (Product item in arrItems)
            {
                if (item.ProductID == ProductID)
                {
                    item.ProductStock += quantity;
                    return true;
                }
            }
            return false;
        }

        public bool Sell(string ProductID, double quantity)
        {
            foreach (Product item in arrItems)
            {
                if (item.ProductID == ProductID && quantity <= item.ProductStock)
                {
                    item.ProductStock -= quantity;
                    return true;
                }
            }
            return false;
        }

        public static void showProductInformation(string ProductID)
        {
            bool flag = false;
            foreach (Product item in arrItems)
            {
                if (item.ProductID == ProductID)
                {
                    Console.WriteLine("\nProduct Details:");
                    Console.WriteLine("================");

                    Console.WriteLine("\nProduct ID\tStock");
                    Console.WriteLine("==========\t\t=====");
                    Console.WriteLine(item.ProductID + "\t\t\t" + item.ProductStock);
                    flag = true;
                }
            }

            if (!flag)
            {
                Console.WriteLine("No product found with id: " + ProductID);
            }
        }

        public static void showAllProductInfo()
        {

            Console.WriteLine("\nProduct Details:");
            Console.WriteLine("================");

            Console.WriteLine("\nProduct ID\t\tStock");
            Console.WriteLine("==========\t\t=====");

            
                if (arrItems.Count > 0)
                {
                    foreach (Product item in arrItems)
                        Console.WriteLine(item.ProductID + "\t\t\t" + item.ProductStock);
                }
                else
                {
                    Console.WriteLine("No product found...!");
                }
            


        }

        class Program
        {
            static void Main(string[] args)
            {
                // No product in list
                Product.showAllProductInfo();

                // Create products

                Product p1 = new Product();
                Product p2 = new Product(100);

                // Show all info
                Product.showAllProductInfo();

                // Add stock
                if (p1.Stock("22.06.1", 50))
                {
                    Console.WriteLine("Stock added successfully...!");
                }
                else
                {
                    Console.WriteLine("Error: stock cann't be added. Check product ID or quantity.");
                }

                // Single product information

                Product.showProductInformation("22.06.1");


                // Sell product
                if (p1.Sell("22.06.2", 15))
                {
                    Console.WriteLine("Product sold successfully...!");
                }
                else
                {
                    Console.WriteLine("Error: product cann't be sold. Check product ID or quantity.");
                }

                // Show all info
                Product.showAllProductInfo();

            }
        }
    }
}