import java.util.HashMap;
import java.util.Map;

/**
 * @Auther: Arsenal
 * @Date: 2020-03-20 23:12
 * @Description: 中介者模式
 */
public class MediatorDemo {
    public static void main(String[] args) {
        // 获取中介者对象
        Mediator m = new President();
        // 获取同事对象，实例化的时候会在中介者对象中注册
        Market market = new Market(m);
        Development devp = new Development(m);
        Financial f = new Financial(m);

        //后面就可以用m来实施指挥调动了
    }
}

/**
 * 中介者接口
 */
interface Mediator {

    /**
     * 注册 同事
     * @param dname
     * @param d
     */
    void register(String dname, Department d);

    /**
     * 执行 处理
     * @param dname
     */
    void command(String dname);
}


/**
 * 中介者实现类
 */
class President implements Mediator {

    private Map<String, Department> map = new HashMap<String, Department>();

    @Override
    public void command(String dname) {
        map.get(dname).selfAction();
    }

    @Override
    public void register(String dname, Department d) {
        map.put(dname, d);
    }
}

/**
 * 抽象同事类
 */
interface Department {
    void outAction();

    void selfAction();
}

/**
 * 具体同事类
 */
class Market implements Department {

    private Mediator m;  //持有中介者(总经理)的引用

    public Market(Mediator m) {
        super();
        this.m = m;
        m.register("market", this);
    }

    @Override
    public void outAction() {
        System.out.println("汇报工作！项目承接的进度，需要资金支持！");
        m.command("finacial");

    }

    @Override
    public void selfAction() {
        System.out.println("跑去接项目！");
    }
}

/**
 * 具体同事类
 */
class Financial implements Department {

    private Mediator m;  //持有中介者(总经理)的引用

    public Financial(Mediator m) {
        super();
        this.m = m;
        m.register("finacial", this);
    }

    @Override
    public void outAction() {
        System.out.println("汇报工作！没钱了，钱太多了！怎么花?");
    }

    @Override
    public void selfAction() {
        System.out.println("数钱！");
    }
}

/**
 * 具体同事类
 */
class Development implements Department {

    private Mediator m;  //持有中介者(总经理)的引用

    public Development(Mediator m) {
        super();
        this.m = m;
        m.register("development", this);
    }

    @Override
    public void outAction() {
        System.out.println("汇报工作！没钱了，需要资金支持！");
    }

    @Override
    public void selfAction() {
        System.out.println("专心科研，开发项目！");
    }
}