A simple IRC bot to keep the #litterbox clean.

Janitor.java

package bl4ckscor3.bot.janitor.core;

import java.io.IOException;
import java.util.Random;

import org.pircbotx.Configuration;
import org.pircbotx.PircBotX;
import org.pircbotx.UtilSSLSocketFactory;
import org.pircbotx.exception.IrcException;
import org.pircbotx.hooks.ListenerAdapter;
import org.pircbotx.hooks.events.MessageEvent;

/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 bl4ckscor3
 *
 * 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.
 *
 */
public class Core
{
	private static PircBotX bot;
	
	public static void main(String args[]) throws IOException, IrcException
	{
		Configuration<PircBotX> config;

		config = new Configuration.Builder<PircBotX>()
				.setVersion("v1.4")
				.setName("Janitor")
				.setLogin("Jane")
				.setServer("irc.esper.net", 6697)
				.setSocketFactory(new UtilSSLSocketFactory().trustAllCertificates())
				.setAutoNickChange(true)
				.addAutoJoinChannel("#litterbox")
				.setMessageDelay(0)
				.addListener(new Core.JanitorListener())
				.buildConfiguration();
		bot = new PircBotX(config);
		bot.startBot();
	}

	public static class JanitorListener extends ListenerAdapter<PircBotX>
	{
		private static int clean = 9; //10 messages until cleanup
		private static boolean cleaning = false;
		private static boolean hasCleanedRightBefore = true;
		
		@Override
		public void onMessage(MessageEvent<PircBotX> event) throws Exception
		{
			if(!event.getChannel().getName().equals("#litterbox"))
				return;
			
			if(event.getMessage().startsWith("+"))
			{
				if(event.getMessage().startsWith("+version"))
					event.getChannel().send().message(Core.bot.getConfiguration().getVersion());
				else if(event.getMessage().startsWith("+changelog"))
					event.getChannel().send().message("https://www.dropbox.com/s/rjspywk6qq4d8s0/Janitor.txt?dl=0&s=sl");
				else if(event.getMessage().startsWith("+source"))
					event.getChannel().send().message("https://gist.github.com/bl4ckscor3/3492bef5f2d2759eb963");
				
				clean--;
				hasCleanedRightBefore = false;
				return;
			}

			if(!cleaning && (clean == 0 || (contains(event.getMessage().toLowerCase(), "litterbox", "clean" , "janitor") && clean != 0)))
			{
				if(hasCleanedRightBefore)
				{
					event.respond("There is no litter to collect right now...");
					return;
				}
				
				cleaning = true;
				Thread.sleep(2000 + new Random().nextInt(4) * 1000);
				clean = 9;
				cleaning = false;
				hasCleanedRightBefore = true;
				Core.bot.sendIRC().action("#litterbox", "cleans up the #litterbox.");
			}
			
			clean--;
			hasCleanedRightBefore = false;
		}

		/**
		 * Checks wether some strings are contained in a message
		 * @param message The message to check
		 * @param checks The substrings to check
		 * @return True if all the substrings are contained in the message
		 */
		private boolean contains(String message, String... checks)
		{
			int ok = 0;

			for(String s : checks)
			{
				if(message.contains(s))
					ok++;
			}

			return ok == checks.length;
		}
	}
}