package rep.channel;

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

public class REPSocketChannel<P> extends SelectableChannel{

	private SocketChannel sc;
	private REPUnpack<P> unpack;
	private REPPack<P> pack;

	public REPSocketChannel(SocketChannel channel) {
		sc = channel;
	}
	
	public void setUnpack(REPUnpack<P> _unpack){
		unpack = _unpack;
	}
	public void setPack(REPPack<P> _pack){
		pack = _pack;
	}
	

	@Override
	public Object blockingLock() {
		return sc.blockingLock();
	}

	@Override
	public SelectableChannel configureBlocking(boolean block) throws IOException {
		return sc.configureBlocking(block);
	}

	@Override
	public boolean isBlocking() {
		return sc.isBlocking();
	}

	@Override
	public boolean isRegistered() {
		return sc.isRegistered();
	}

	@Override
	public SelectionKey keyFor(Selector sel) {
		return sc.keyFor(sel);
	}

	@Override
	public SelectorProvider provider() {
		return sc.provider();
	}

	@Override
	public SelectionKey register(Selector sel, int ops, Object att) throws ClosedChannelException {
		return sc.register(sel, ops, att);
	}

	@Override
	public int validOps() {
		return sc.validOps();
	}

	@Override
	protected void implCloseChannel() throws IOException {
		sc.close();
	}

	public long read(ByteBuffer header) {
		// TODO Auto-generated method stub
		return 0;
	}

	public void write(ByteBuffer buffer) throws IOException {
		// TODO Auto-generated method stub
		
	}

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

	public Socket socket() {
		// TODO Auto-generated method stub
		return null;
	}
	
	public P read() throws IOException{
		return unpack.unpackUConv(sc);
	}
	public boolean write(P p){
		ByteBuffer bb = pack.packUConv(p);
		try {
			while (bb.remaining() > 0 ){
				sc.write(bb);
			}
			return true;
		} catch (IOException e) {
			return false;
		}
	}

	public static <T> REPSocketChannel<T> create() throws IOException {
		if (REPServerSocketChannel.isSimulation) {
			return new ChannelSimulator<T>();
		} else {
			return new REPSocketChannel<T>(SocketChannel.open());
		}
	}

	public boolean connect(SocketAddress semaIP) throws IOException {
		return sc.connect(semaIP);
	}

	

}