package com.sdk;

import java.util.ArrayList;
import java.util.HashMap;

public class EventBus {

    public static int PHONE_COMING = 0;
    public static int SCREEN_ON = 1;

    public static EventBus sInstance = new EventBus();

    private HashMap<Integer,ArrayList<Listener>> listHashMap = new HashMap<>();

    public static EventBus getInstance(){
        return sInstance;
    }

    private EventBus(){
        listHashMap.put(PHONE_COMING,new ArrayList<Listener>());
        listHashMap.put(SCREEN_ON,new ArrayList<Listener>());
    }

    public synchronized void register(int type,Listener listener){
        listHashMap.get(type).add(listener);
    }

    public synchronized void notify(int type){
        for(Listener listener:listHashMap.get(type)){
            listener.onEvent(type);
        }
    }

    public synchronized void unregister(int type,Listener listener){
        listHashMap.get(type).remove(listener);
    }

    public interface Listener{

        void onEvent(int notify);
    }

}