/* 
 * Copyright (C) 2015 www.phantombot.net
 *
 * Credits: mast3rplan, gmt2001, PhantomIndex, GloriousEggroll
 * gloriouseggroll@gmail.com, phantomindex@gmail.com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */



package me.mast3rplan.phantombot.event;

import com.google.common.collect.Lists;
import com.google.common.collect.Sets;

import java.util.List;
import java.util.Set;

public class EventBus {
    private static final EventBus instance = new EventBus();
    public static EventBus instance() {
        return instance;
    }

    private com.google.common.eventbus.EventBus eventBus = new com.google.common.eventbus.EventBus("PhantomBot");
    private Set<Listener> listeners = Sets.newHashSet();

    public void register(Listener listener) {
        listeners.add(listener);
        eventBus.register(listener);
    }

    public void unregister(Listener listener) {
        listeners.remove(listener);
        eventBus.unregister(listener);
    }

    public void post(Event event) {
        eventBus.post(event);
    }
}
