package aspects;

import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;

import com.sun.javacard.apduio.CadDevice;
import com.sun.javacard.apduio.Apdu;

import com.sun.javacard.apduio.CadClient;
import mixconfig.tools.dataretention.smartcard.ConnectionManager;
import mixconfig.tools.dataretention.smartcard.SmartCardProxy;
import mixconfig.tools.dataretention.smartcard.commands.AbstractCommand;
import mixconfig.tools.dataretention.smartcard.commands.BeginInstallationCommand;
import mixconfig.tools.dataretention.smartcard.commands.EndInstallationCommand;
import mixconfig.tools.dataretention.smartcard.commands.ErrorCodeException;
import mixconfig.tools.dataretention.smartcard.commands.InstallAnonCardAppletCommand;
import mixconfig.tools.dataretention.smartcard.commands.SelectInstallerAppletCommand;
import javax.smartcardio.CommandAPDU;
import javax.smartcardio.ResponseAPDU;
import javax.smartcardio.CardChannel;


/** Singleton **/
privileged public aspect MixConfigConnectionManagerAspect {

	protected CadClient channelToEmulator;

	boolean around(ConnectionManager connectionManager) : target(connectionManager) && call(* connectToSmartCard()) {
		if (connectionManager.smartCard == null) {
			Socket sock;
			try {
				sock = new Socket("localhost", 9025);
				InputStream is = sock.getInputStream();
				OutputStream os = sock.getOutputStream();

				channelToEmulator = new CadClient(is, os);

				// CadClient.exchangeApdu

				installAnonApplet(connectionManager);

				connectionManager.selectAnonApplet();
			} catch (Exception e) {
				e.printStackTrace();
			}
			connectionManager.smartCard = new SmartCardProxy(connectionManager);
		}
		return true;
	}

	private void installAnonApplet(ConnectionManager connectionManager) {
		AbstractCommand command = new SelectInstallerAppletCommand();
		try {
			connectionManager.processCommand(command);

			command = new BeginInstallationCommand();
			connectionManager.processCommand(command);

			command = new InstallAnonCardAppletCommand();
			connectionManager.processCommand(command);

			command = new EndInstallationCommand();
			connectionManager.processCommand(command);
		} catch (ErrorCodeException e) {
			e.printStackTrace();
		}
	}

	ResponseAPDU around(CommandAPDU commandApdu) : target (CardChannel) && call(* transmit(CommandAPDU)) && args(commandApdu) {
		System.out.println("Card channel");
		return null;
	}
}