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

namespace AdapterDesign
{
    //Adapter适配器模式是将两个不兼容的类组合在一起使用。
    class Program
    {
        static void Main(string[] args)
        {
            //正常的接口实现方法
            People p = new People();
            p.ispeak = new Chinese();
            p.Say();

            //第一种：Adapter适配器模式实现方法
            EnglishAdapter enaAdapter = new EnglishAdapter();
            enaAdapter._english = new English();
            p.ispeak = enaAdapter;
            p.Say();

            //第二种：Adapter适配器模式实现方法
            p.ispeak = new JapanAdapter();
            p.Say();
            Console.ReadKey();
        }
    }
    //People依赖于接口ISpeak,在People中定义了一个注入点（ISpeak _iSpeak），属于高层依赖底层
    public class People
    {
        public People() { }
        public ISpeak ispeak;
        public void Say()
        {
            this.ispeak.Say();
        }
    }

    //抽象接口
    public interface ISpeak
    {
        void Say();
    }

    //接口具体实现依赖于抽象接口
    public class Chinese : ISpeak
    {
        public void Say()
        {
            Console.WriteLine("中文");
        }
    }

    //第一种：Adapter适配器模式是将两个不兼容的类组合在一起使用,接口具体实现依赖于抽象接口
    public class EnglishAdapter : ISpeak
    {
        public English _english;
        public English english
        {
            get { return this._english; }
            set { this._english = value; }
        }
        public void Say()
        {
            this._english.SayEnglish();
        }
    }
    public class English
    {
        public void SayEnglish()
        {
            Console.WriteLine("英文");
        }
    }

    //第二种：Adapter适配器模式中间类继承实现
    public class JapanAdapter : Japan, ISpeak
    {
        public void Say()
        {
            SayJapan();
        }
    }
    public class Japan
    {
        public void SayJapan()
        {
            Console.WriteLine("日文");
        }
    }
}