package org.openslx.imagemaster.server;

import java.io.IOException;

import org.apache.ftpserver.ftplet.FtpException;
import org.apache.ftpserver.ftplet.FtpReply;
import org.apache.ftpserver.ftplet.FtpRequest;
import org.apache.ftpserver.ftplet.FtpSession;
import org.apache.ftpserver.ftplet.Ftplet;
import org.apache.ftpserver.ftplet.FtpletContext;
import org.apache.ftpserver.ftplet.FtpletResult;
import org.apache.ftpserver.ftplet.UserManager;
import org.apache.log4j.Logger;
import org.openslx.imagemaster.db.ImageProcessor;

public class MasterFtplet implements Ftplet {
	private static Logger log = Logger.getLogger(Ftplet.class);
	private UserManager userManager;

	@Override
	public void init(FtpletContext ftpletContext) throws FtpException {
		userManager = ftpletContext.getUserManager();
	}

	@Override
	public void destroy() {
		// not used
	}

	@Override
	public FtpletResult beforeCommand(FtpSession session, FtpRequest request)
			throws FtpException, IOException {
		if (session.getUser() != null) {
			log.info(session.getUser().getName() + " issued command: " + request.getRequestLine());
		}
		return null;
	}

	@Override
	public FtpletResult afterCommand(FtpSession session, FtpRequest request,
			FtpReply reply) throws FtpException, IOException {
		if (session.getUser() != null) {
			String username = session.getUser().getName();
			String command = request.getRequestLine();
			log.info(username + " is done with command: " + command);
			if (request.getCommand().equals("STOR")) {
				try {
					userManager.delete(username);
				} catch (FtpException e) {
				} finally {
					log.info("Stored file and deleted user: '" + username + "'");
					ImageProcessor.processImageAfterUpload(username, command.split(" ")[1]);
				}
			}
		}
		return null;
	}

	@Override
	public FtpletResult onConnect(FtpSession session) throws FtpException,
			IOException {
		// not used
		return null;
	}

	@Override
	public FtpletResult onDisconnect(FtpSession session) throws FtpException,
			IOException {
		// not used
		return null;
	}

}