/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 Ziver Koc
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package zutil.net.nio.service.sync;

import zutil.log.LogUtil;
import zutil.net.nio.NioNetwork;
import zutil.net.nio.message.Message;
import zutil.net.nio.message.SyncMessage;
import zutil.net.nio.service.NetworkService;

import java.nio.channels.SocketChannel;
import java.util.HashMap;
import java.util.logging.Logger;

public class SyncService extends NetworkService{
	private static Logger logger = LogUtil.getLogger();
	// list of objects to sync	
	private HashMap<String, ObjectSync> sync;

	public SyncService(NioNetwork nio){
		super(nio);
		sync = new HashMap<String, ObjectSync>();
	}

	/**
	 * Adds a SyncObject to the sync list
	 * @param os The object to sync
	 */
	public void addSyncObject(ObjectSync os){
		sync.put(os.id, os);
		logger.fine("New Sync object: "+os);
	}

	public void handleMessage(Message message, SocketChannel socket){
		if(message instanceof SyncMessage){
			SyncMessage syncMessage = (SyncMessage)message;
			if(syncMessage.type == SyncMessage.MessageType.SYNC){
				ObjectSync obj = sync.get(syncMessage.id);
				if(obj != null){
					logger.finer("Syncing Message...");
					obj.syncObject(syncMessage);
				}
			}
			else if(syncMessage.type == SyncMessage.MessageType.REMOVE){
				sync.remove(syncMessage.id).remove();
			}
		}
	}

	/**
	 * Syncs all the objects whit the server
	 */
	public void sync(){
		for(String id : sync.keySet()){
			sync.get(id).sendSync();
		}
	}
	
	public static SyncService getInstance(){
		return (SyncService)instance;
	}
}
