package rep.channel;

import java.io.IOException;
import java.net.ServerSocket;
import java.nio.channels.ClosedChannelException;
import java.nio.channels.SelectableChannel;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.nio.channels.spi.SelectorProvider;

/* 
 * シミュレーションでは inheritance のServerChannelSimulator を生成、
 * リアルコミュニケーションでは 自身を生成、内部にもつ ServerSocketChannelを扱う
 */
public class REPServerSocketChannel<P> extends SelectableChannel {

	public static boolean isSimulation;
	private ServerSocketChannel ssc;
	private REPPack<P> packer;

	public REPServerSocketChannel() {
		
	}
	
	public static <T> REPServerSocketChannel<T> open(REPPack<T> packer) throws IOException{
		if(isSimulation){
			return new ServerChannelSimulator<T>();
		}else{
			return new REPServerSocketChannel<T>(ServerSocketChannel.open(), packer);
		}
	}
	
	public static <T> REPServerSocketChannel<T> open(SelectableChannel c,REPPack<T> packer) throws IOException{
		assert(!isSimulation);
		return new REPServerSocketChannel<T>((ServerSocketChannel)c, packer);
	}
	
	public REPServerSocketChannel(ServerSocketChannel open, REPPack<P> packer) {
		ssc = open; 
		this.packer = packer;
		REPSocketChannel.addChannel(ssc,this);
	}
	
	public void close1() throws IOException {
		REPSocketChannel.removeChannel(ssc);
		ssc.close();
	}

	public REPServerSocketChannel(SelectableChannel channel, REPPack<P> packer) {
		this.ssc = (ServerSocketChannel)channel;
		this.packer = packer;
		REPSocketChannel.addChannel(ssc,this);
	}

	public REPSocketChannel<P> accept1() throws IOException {
		return new REPSocketChannel<P>(ssc.accept(), packer);
	}
	
	public SelectionKey register(REPSelector<P> sel, int ops, Object att) throws ClosedChannelException {
		assert(!isSimulation);
		if(sel!=null)
			return sel.register(ssc, ops, att);
		else
			return null;
	}

	public SocketChannel accept() throws IOException {
		return accept1().sc;
	}


	public ServerSocket socket() {
		return ssc.socket();
	}

	public SelectableChannel configureBlocking(boolean block) throws IOException
	{
		ssc.configureBlocking(block);
		return this;
	}

	@Override
	public Object blockingLock() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public boolean isBlocking() {
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	public boolean isRegistered() {
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	public SelectionKey keyFor(Selector sel) {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public SelectorProvider provider() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public SelectionKey register(Selector sel, int ops, Object att)
			throws ClosedChannelException {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public int validOps() {
		// TODO Auto-generated method stub
		return 0;
	}

	@Override
	protected void implCloseChannel() throws IOException {
		// TODO Auto-generated method stub
		
	}


}