Program.cs

using System;
using System.Collections;
using System.Linq;
using System.Threading.Tasks;
using System.Xml.XPath;
using DesignPatterns.Builder;
using DesignPatterns.Factory;
using DesignPatterns.Prototype;
using DesignPatterns.Singleton;
using DesignPatterns.StructuralPatterns.Adapter;
using DesignPatterns.StructuralPatterns.Facade;
using Newtonsoft.Json;

namespace DesignPatterns
{
    class Program
    {
        static void WriteColoredLine(
            string text, ConsoleColor color = ConsoleColor.Green)
        {
            Console.ForegroundColor =color ;
            Console.WriteLine(text);
        }

        static void Main(string[] args)
        {
            #region Creational Patterns
            #region singleton 
             /* Task task1 = Task.Factory.StartNew(() => {  
                Counter counter1 = Counter.GetInstance();
                counter1.AddOne();
                Console.WriteLine("counter 1 :"+ counter1.count.ToString());
             }); 

             Task task2 = Task.Factory.StartNew(() => {  
                Counter counter2 = Counter.GetInstance();
                counter2.AddOne();
                Console.WriteLine("counter 2 :"+ counter2.count.ToString());
                Console.WriteLine();
             });  */
              //counter1.AddOne();
             //Console.WriteLine("counter 1 :"+ counter1.count.ToString());
             //Console.WriteLine("counter 2 :"+ counter2.count.ToString());
            #endregion
            
            #region prototype
             /*EmployeePrototype tempEmp1 = new TempEmployee();
             tempEmp1.Name = "temp employee 1";
             tempEmp1.Id = 1;
             tempEmp1.EmpAddress = new Address{City="city 1", Building="B1", StreetName="street name"};
             
             EmployeePrototype tempEmp2 =tempEmp1.ShallowCopy();

             Console.WriteLine("========= Temp Emp 1 Original Values=============");
             Console.WriteLine(tempEmp1.ToString());
             Console.WriteLine("========= Temp Emp 2 Copy========================");
             Console.WriteLine(tempEmp2.ToString());
             
             tempEmp2.EmpAddress.City="new city";
             tempEmp2.Name="sadasdasd";
             tempEmp2.Id=1000;
             Console.ForegroundColor = ConsoleColor.Cyan;
             Console.WriteLine("========= Temp Emp 1 After Change =============");
             Console.WriteLine(tempEmp1.ToString());
             Console.WriteLine("========= Temp Emp 2 ==========================");
             Console.WriteLine(tempEmp2.ToString());*/
             
            #endregion
            
            #region Builder
            /*System.Text.StringBuilder sb =new System.Text.StringBuilder();
             sb.Append("Word 1,");
             sb.Append("Word 2");
              
             WriteColoredLine(sb.ToString(),ConsoleColor.Cyan);*/
            /*WriteColoredLine("***Builder Pattern***",ConsoleColor.Yellow);
            Director director = new Director();
            IBuilder carBuilder = new Car("Jeep");
            IBuilder motorCycleBuilder = new MotorCycle("Honda");*/
            
            // Making Car
            /*director.Construct(carBuilder);
            Product car = carBuilder.GetVehicle();
            WriteColoredLine($"Car {car.Show()}");
            
            //Making MotorCycle
            director.Construct(motorCycleBuilder);
            Product motorCycle = motorCycleBuilder.GetVehicle();
            WriteColoredLine($"MotorCycle {motorCycle.Show()}");*/
            #endregion
            
            #region Factory Method 
             /*string cardNumber,bankCode;
             BankFactory bankFactory = new BankFactory ();
            
             WriteColoredLine("Enter your card number",ConsoleColor.Cyan);
             cardNumber=Console.ReadLine();
             bankCode=cardNumber.Substring(0,6);
             IBank bank = bankFactory.GetBank(bankCode);
             IPaymentCard paymentCard = bankFactory.GetPaymentCard("12");

             WriteColoredLine(bank.Withdraw());
             WriteColoredLine(paymentCard.GetName());*/
            #endregion
            #endregion
            
            #region Structural Patterns
              
            #region Proxy
              /*StructuralPatterns.SMSServiceProxy proxy = new StructuralPatterns.SMSServiceProxy ();
             
              WriteColoredLine(proxy.SendSMS("123","01100000","message 1"));
              WriteColoredLine(proxy.SendSMS("123","01100000","message 1"));
              WriteColoredLine(proxy.SendSMS("123","01100000","message 1"));*/
            #endregion
              
            #region  Decorator 
            /*StructuralPatterns.ConcereteSMSService smsService = new StructuralPatterns.ConcereteSMSService ();
            StructuralPatterns.NotificationEmailDecorator emailDecorator = new StructuralPatterns.NotificationEmailDecorator();             
             
            emailDecorator.SetService(smsService);
            WriteColoredLine(emailDecorator.SendSMS("123","01100000","message 1"));*/
            
            #endregion 

            #region  Adapter 
            /*Employee emp =new Employee ();
            MachineOperator machineOperator=new MachineOperator ();
            machineOperator.BasicSalary =1200;

            emp.Name ="test"; emp.BasicSalary=1000;
            SalaryAdapter calculator = new SalaryAdapter ();
            var salary= calculator.CalcSalary(machineOperator);
            WriteColoredLine(salary.ToString());*/
            #endregion
            
            #region Facade 
               
              /* ShoppingBasket basket =new ShoppingBasket ();
               basket.AddItem(new BasketItem {ItemID="123",ItemPrice=50,Quantity=3});
               basket.AddItem(new BasketItem {ItemID="456",ItemPrice=40,Quantity=2});
               
               PurchaseOrder order = new PurchaseOrder ();
               order.CreateOrder(basket,"name:mohammed,bank:123456789,mobile:0100000");
               */
               
               
            #endregion
            
            #region Flyweight
              DiscountCalcFactory discountFactory = new DiscountCalcFactory ();
              var calculator = discountFactory.GetDiscountCalc("day");
              var val=calculator.GetDiscountValue(DateTime.Now.Date);
              WriteColoredLine(val.ToString());
            #endregion

            #endregion  // End of structural patterns

            Console.ReadKey();
        }
    }
}