using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        PhoneEngineer engineer = new PhoneEngineer();

        IPhoneBuilder phoneBuilder= null;

        phoneBuilder = new AndroidBuilder();

        engineer.Construct(phoneBuilder);

        Console.WriteLine("A new phone built: \n\n{0}", phoneBuilder.Phone.ToString());

        phoneBuilder = new WindowsPhone();

        engineer.Construct(phoneBuilder);

        Console.WriteLine("A new phone built: \n\n{0}", phoneBuilder.Phone.ToString());

    }

}

public enum ScreenType {Touch_Capacitive, Touch_Resistive, Non_Touch}

public enum Battery {MAH_1000, MAH_1500, MAH_2000}

public enum OperatingSystem {Android, Windows_Mobile, Window_Phone, Symbian}

public enum Stylus {Yes, No}

​

//this is the product. This is the object that will be created by assembling many parts

public class MobilePhone

{

    public string PhoneName {get;set;}

    public MobilePhone(string name)

    {

        PhoneName = name;

    }

    public ScreenType PhoneScreen {get; set;}

    public Battery PhoneBattery {get; set;}

    public OperatingSystem PhoneOS {get; set;}

    public Stylus PhoneStylus {get; set;}

    public override string ToString()

    {

        return string.Format("Name: {0}\nScreen: {1}\nBattery: {2}\nOS: {3}\nStylus: {4}",PhoneName, PhoneScreen, PhoneBattery, PhoneOS, PhoneStylus);

    }   

}

//This is the interface for creating the actual products 

public interface IPhoneBuilder

{

    void BuildScreen();

    void BuildBattery();

    void BuildOS();

    void BuildStylus();

    MobilePhone Phone{get;}

}

//Concrete classes that will create the complex Product

public class AndroidBuilder : IPhoneBuilder

{

    MobilePhone phone;

    public AndroidBuilder()

    {

        phone = new MobilePhone("Andorid");

    }

    public void BuildScreen(){phone.PhoneScreen = ScreenType.Touch_Capacitive;}

    public void BuildBattery(){phone.PhoneBattery = Battery.MAH_1500;}

    public void BuildOS(){phone.PhoneOS = OperatingSystem.Android;}

    public void BuildStylus() {phone.PhoneStylus = Stylus.Yes;}

    public MobilePhone Phone { get {return phone;}}

}

​

public class WindowsPhone: IPhoneBuilder

{

    MobilePhone phone;

    public WindowsPhone()

    {

        phone = new MobilePhone("Windows");

    }

    public void BuildScreen(){phone.PhoneScreen = ScreenType.Touch_Resistive;}

    public void BuildBattery(){phone.PhoneBattery = Battery.MAH_2000;}

    public void BuildOS(){phone.PhoneOS = OperatingSystem.Window_Phone;}

    public void BuildStylus() {phone.PhoneStylus = Stylus.Yes;}

    public MobilePhone Phone { get {return phone;}}

}

public class iPhonePhone: IPhoneBuilder

{

    MobilePhone phone;

    public iPhonePhone()

    {

        phone = new MobilePhone("iPhone");

    }

    public void BuildScreen(){phone.PhoneScreen = ScreenType.Non_Touch;}

    public void BuildBattery(){phone.PhoneBattery = Battery.MAH_1000;}

    public void BuildOS(){phone.PhoneOS = OperatingSystem.Symbian;}

    public void BuildStylus() {phone.PhoneStylus = Stylus.No;}

    public MobilePhone Phone { get {return phone;}}

}

//This is the "Director" class. This is the Client code that will specify the parts needs to be put tegether to create the actual concrete Product

public class PhoneEngineer

{

    public void Construct(IPhoneBuilder phoneBuilder)

    {

        phoneBuilder.BuildScreen();

        phoneBuilder.BuildBattery();

        phoneBuilder.BuildOS();

        phoneBuilder.BuildStylus();

    }

}

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