package cz.cuni.amis.pogamut.ut2004.tournament.deathmatch;
   
   import java.io.File;
   import java.util.concurrent.Callable;
   import java.util.concurrent.ThreadPoolExecutor;
   import java.util.logging.Level;
   
   import org.apache.commons.io.FileUtils;
   
  import cz.cuni.amis.pogamut.base.utils.logging.LogCategory;
  import cz.cuni.amis.pogamut.ut2004.tournament.botexecution.UT2004BotExecutionConfig;
  import cz.cuni.amis.pogamut.ut2004.tournament.match.UT2004BotConfig;
  import cz.cuni.amis.pogamut.ut2004.utils.UCCWrapper;
  import cz.cuni.amis.pogamut.ut2004.utils.UCCWrapperConf;
  import cz.cuni.amis.utils.ExceptionToString;
  import cz.cuni.amis.utils.exception.PogamutException;
  
  /**
   * Performs 1v1 death-match for two Pogamut bots (no native bots here).
   * <p><p>
   * You may run it inside thread by invoking new Thread(ut2004DeathMatch1v1).start() or use with {@link ThreadPoolExecutor} as it
   * is implementing {@link Callable}.
   * <p><p>
   * But you will usually want just to execute it using {@link UT2004DeathMatch1v1#call()}.
   * <p><p>
   * Encapsulates classes: {@link UT2004DeathMatch}, {@link UT2004DeathMatchConfig}, {@link UT2004BotConfig} and {@link UCCWrapperConf}.
   * <p><p>
   * If you want to know how all instanes of {@link UT2004DeathMatch} configuration are setup, see {@link UT2004DeathMatch1v1#configure1Vs1()}
   * code.
   * 
   * @author Jimmy
   */
  public class UT2004DeathMatch1v1 implements Callable<UT2004DeathMatchResult>, Runnable {
  	
  	/**
  	 * Used as {@link UT2004DeathMatchConfig#setFragLimit(int)}.
  	 */
  	private int fragLimit;
  	
  	/**
  	 * Used as {@link UT2004DeathMatchConfig#setTimeLimit(int)}.
  	 */
  	private int timeLimitInMinutes;
  	
  	/**
  	 * Used as {@link UT2004DeathMatchConfig#setMatchId(String)}.
  	 * <p><p>
  	 * Example: DMMatch1v1
  	 */
  	private String matchName;
  	
  	/**
  	 * Used as {@link UT2004BotConfig#setBotId(String)} for the first bot.
  	 * <p><p>
  	 * Example: Bot1
  	 */
  	private String bot1Name;
  	
  	/**
  	 * Used as {@link UT2004BotExecutionConfig#setPathToBotJar(String)} for the first bot.
  	 * <p><p>
  	 * Example: "bots" + File.separator + "Bot1" + File.separator + "Bot1.jar"
  	 */
  	private String bot1JarPath;
  	
  	/**
  	 * Used as {@link UT2004BotConfig#setBotId(String)} for the second bot.
  	 * <p><p>
  	 * Example: Bot1
  	 */
  	private String bot2Name;
  	
  	/**
  	 * Used as {@link UT2004BotExecutionConfig#setPathToBotJar(String)} for the second bot.
  	 * <p><p>
  	 * Example: "bots" + File.separator + "Bot2" + File.separator + "Bot2.jar"
  	 */
  	private String bot2JarPath;
  	
  	/**
  	 * Used as {@link UCCWrapperConf#setUnrealHome(String)}.
  	 * <p><p>
  	 * Example: "d:" + File.separator + "Games" + File.separator + "UT2004"
  	 */
  	private String unrealHome;
  	
  	/**
  	 * Used as {@link UCCWrapperConf#setMapName(String)}.
  	 * <p><p>
  	 * Example: DM-1on1-Albatross
  	 */
  	private String mapName;
  	
  	/**
  	 * Used as {@link UT2004DeathMatchConfig#setOutputDirectory(File)}.
  	 * <p><p>
  	 * Example: "results" + File.separator + "matches"
  	 */
  	private String outputDir;
 	
 	/**
 	 * Used for logging.
 	 */
 	private LogCategory log;
 
 	/**
 	 * Last result of the match. Available after first successful execution of {@link UT2004DeathMatch1v1#run()}.
 	 */
 	private UT2004DeathMatchResult result = null;
 
 	private Throwable exception;
 
 	/**
 	 * Parameter-less constructor, don't forget to initialize everything!	 
 	 */
 	public UT2004DeathMatch1v1() {
 		log = new LogCategory(getMatchName());
 	}
 	
 	/**
 	 * Match-name only constructor, don't forget to initialize everything!	 
 	 */
 	public UT2004DeathMatch1v1(String matchName) {
 		this.matchName = matchName;
 		log = new LogCategory(getMatchName());
 	}
 	
 	/**
 	 * Initializes all needed fields for combat of 2 bots.
 	 * <p><p>
 	 * Used time limit: 20 minutes,<p>
 	 * Used frag limit: 20<p>
 	 * Recommended mapName: DM-1on1-Albatross
 	 * 
 	 * @param unrealHome
 	 * @param mapName
 	 * @param bot1Name
 	 * @param bot1JarPath
 	 * @param bot2Name
 	 * @param bot2JarPath
 	 */
 	public UT2004DeathMatch1v1(String unrealHome, String mapName, String bot1Name, String bot1JarPath, String bot2Name, String bot2JarPath) {
 		this.unrealHome = unrealHome;
 		this.mapName = mapName;
 		this.bot1Name = bot1Name;
 		this.bot1JarPath = bot1JarPath;
 		this.bot2Name = bot2Name;
 		this.bot2JarPath = bot2JarPath;
 		this.matchName = bot1Name + "-vs-" + bot2Name;
 		this.outputDir = "results" + File.separator + "matches";
 		this.fragLimit = 20;
 		this.timeLimitInMinutes = 20;
 		log = new LogCategory(getMatchName());
 	}
 	
 	/**
 	 * Logger used for outputting info about the match.
 	 * <p><p>
 	 * If you want to output stuff to console, use {@link LogCategory#addConsoleHandler()}.
 	 * @return
 	 */
 	public LogCategory getLog() {
 		return log;
 	}
 
 	/**
 	 * Used as {@link UT2004DeathMatchConfig#setFragLimit(int)}.
 	 * 
 	 * @return
 	 */
 	public int getFragLimit() {
 		return fragLimit;
 	}
 
 	/**
 	 * Used as {@link UT2004DeathMatchConfig#setTimeLimit(int)}.
 	 * 
 	 * @return
 	 */
 	public int getTimeLimitInMinutes() {
 		return timeLimitInMinutes;
 	}
 
 	/**
 	 * Used as {@link UT2004DeathMatchConfig#setMatchId(String)}.
 	 * 
 	 * @return
 	 */
 	public String getMatchName() {
 		return matchName;
 	}
 	
 	/**
 	 * Used as {@link UT2004BotConfig#setBotId(String)} for the first bot.
 	 * 
 	 * @return
 	 */
 	public String getBot1Name() {
 		return bot1Name;
 	}
 	
 	/**
 	 * Used as {@link UT2004BotExecutionConfig#setPathToBotJar(String)} for the first bot.
 	 * 
 	 * @return
 	 */
 	public String getBot1JarPath() {
 		return bot1JarPath;
 	}
 	
 	/**
 	 * Used as {@link UT2004BotConfig#setBotId(String)} for the second bot.
 	 * 
 	 * @return
 	 */
 	public String getBot2Name() {
 		return bot2Name;
 	}
 	
 	/**
 	 * Used as {@link UT2004BotExecutionConfig#setPathToBotJar(String)} for the second bot.
 	 * 
 	 * @return
 	 */
 	public String getBot2JarPath() {
 		return bot2JarPath;
 	}
 	
 	/**
 	 * Used as {@link UCCWrapperConf#setMapName(String)}.
 	 * 
 	 * @return
 	 */
 	public String getUnrealHome() {
 		return unrealHome;
 	}
 	
 	/**
 	 * Used as {@link UCCWrapperConf#setMapName(String)}.
 	 * @return
 	 */
 	public String getMapName() {
 		return mapName;
 	}
 	
 	/**
 	 * Used as {@link UT2004DeathMatchConfig#setOutputDirectory(File)}.
 	 * 
 	 * @return
 	 */
 	public String getOutputDir() {
 		return outputDir;
 	}
 	
 	/**
 	 * Last result of the match. Available after first successful execution of {@link UT2004DeathMatch1v1#run()}.
 	 * 
 	 * @return
 	 */
 	public UT2004DeathMatchResult getResult() {
 		return result;
 	}
 
 	/**
 	 * If {@link UT2004DeathMatch1v1#run()} terminates with an exception, it will be made available through this getter.
 	 * @return
 	 */
 	public Throwable getException() {
 		return exception;
 	}
 
 	/**
 	 * Sets logger used for outputting info about the match.
 	 * @param log
 	 */
 	public void setLog(LogCategory log) {
 		this.log = log;
 	}
 
 	public UT2004DeathMatch1v1 setFragLimit(int fragLimit) {
 		this.fragLimit = fragLimit;
 		return this;
 	}
 
 	public UT2004DeathMatch1v1 setTimeLimitInMinutes(int timeLimitInMinutes) {
 		this.timeLimitInMinutes = timeLimitInMinutes;
 		return this;
 	}
 
 	public UT2004DeathMatch1v1 setMatchName(String matchName) {
 		this.matchName = matchName;
 		return this;
 	}
 
 	public UT2004DeathMatch1v1 setBot1Name(String bot1Name) {
 		this.bot1Name = bot1Name;
 		return this;
 	}
 
 	public UT2004DeathMatch1v1 setBot1JarPath(String bot1JarPath) {
 		this.bot1JarPath = bot1JarPath;
 		return this;
 	}
 
 	public UT2004DeathMatch1v1 setBot2Name(String bot2Name) {
 		this.bot2Name = bot2Name;
 		return this;
 	}
 
 	public UT2004DeathMatch1v1 setBot2JarPath(String bot2JarPath) {
 		this.bot2JarPath = bot2JarPath;
 		return this;
 	}
 
 	public UT2004DeathMatch1v1 setUnrealHome(String unrealHome) {
 		this.unrealHome = unrealHome;
 		return this;
 	}
 
 	public UT2004DeathMatch1v1 setMapName(String mapName) {
 		this.mapName = mapName;
 		return this;
 	}
 
 	public UT2004DeathMatch1v1 setOutputDir(String outputDir) {
 		this.outputDir = outputDir;
 		return this;
 	}
 
 	/**
 	 * Removes directory with match results, called automatically in {@link UT2004DeathMatch1v1#run()}.
 	 */
 	public void cleanUp() {
 		try {
 			FileUtils.deleteQuietly(new File(getOutputDir() + File.separator + getMatchName()));
 		} catch (Exception e) {			
 		}		
 	}	
 	
 	/**
 	 * Contains main code that setups the {@link UT2004DeathMatchConfig}, {@link UT2004BotConfig} and {@link UCCWrapper}
 	 * instances (it might be interesting for you to check the code for yourself if you wish to customize it further...).
 	 * 
 	 * @return
 	 */
 	protected UT2004DeathMatchConfig configure1Vs1() {
 		UT2004DeathMatchConfig matchConfig = new UT2004DeathMatchConfig();
 		
 		matchConfig.setMatchId(getMatchName());
 		matchConfig.setOutputDirectory(new File(getOutputDir() == null ? "results" + File.separator + "matches" : getOutputDir()));
 				
 		matchConfig.setFragLimit(getFragLimit());
 		matchConfig.setTimeLimit(getTimeLimitInMinutes()); // in minutes
 		
 		matchConfig.getUccConf().setStartOnUnusedPort(true);
 		matchConfig.getUccConf().setUnrealHome(getUnrealHome());
 		matchConfig.getUccConf().setGameType("BotDeathMatch");
 		matchConfig.getUccConf().setMapName(getMapName());
 		
 		UT2004BotConfig botConfig;
 		
 		botConfig = new UT2004BotConfig();
 		botConfig.setBotId(getBot1Name());
 		botConfig.setPathToBotJar(getBot1JarPath());
 		botConfig.setTeamNumber(255);
 		botConfig.setRedirectStdErr(true);
 		botConfig.setRedirectStdOut(true);		
 		matchConfig.addBot(botConfig);
 		
 		botConfig = new UT2004BotConfig();
 		botConfig.setBotId(getBot2Name());
 		botConfig.setPathToBotJar(getBot2JarPath());
 		botConfig.setTeamNumber(255);
 		botConfig.setRedirectStdErr(true);
 		botConfig.setRedirectStdOut(true);		
 		matchConfig.addBot(botConfig);
 		
 		return matchConfig;
 	}
 	
 	/**
 	 * Creates new instance of {@link UT2004DeathMatch} with desired configuration + validates it (i.e., if it won't throw an exception
 	 * you may be sure, that the {@link UT2004DeathMatch} instance is correctly configured).
 	 * @return
 	 */
 	public UT2004DeathMatch createMatch() {
 		log.info("Configuring match: " + getMatchName());
 		UT2004DeathMatchConfig matchConfig = configure1Vs1();
 		UT2004DeathMatch match = new UT2004DeathMatch(matchConfig, log);
 		match.validate();
 		return match;
 	}
 	
 	/**
 	 * Executes the match. It first {@link UT2004DeathMatch1v1#cleanUp()}, than it configures {@link UT2004DeathMatch} via {@link UT2004DeathMatch1v1#createMatch()}
 	 * and {@link UT2004DeathMatch#execute()}s it.
 	 * <p><p>
 	 * If no exception occurs during the match (== match will successfully finish), match result will be available through {@link UT2004DeathMatch1v1#getResult()}.
 	 * <p><p>
 	 * If exception occurs (due to whatever reason), this exception will be available through {@link UT2004DeathMatch1v1#getException()}.
 	 * 
 	 * @throws PogamutException wraps any exception into this one
 	 */
 	@Override
 	public void run() {
 		try {
 			cleanUp();
 			
 			UT2004DeathMatch match = createMatch();
 	
 			log.info("Executing match: " + getMatchName());
 			
 			this.result = match.execute();
 			
 			log.info("Match " + getMatchName() + " result: " + result);
 				
 			log.info("---/// MATCH OK ///---");
 		} catch (Exception e) {
 			if (log != null && log.isLoggable(Level.SEVERE)) log.severe(ExceptionToString.process("Failed to execute the match: " + getMatchName() + ".", e));
 			this.exception = e;
 			if (e instanceof RuntimeException) throw (RuntimeException)e;
 			throw new PogamutException("Failed to execute the match: " + getMatchName(), e, this);
 		}
 	}
 
 	@Override
 	public UT2004DeathMatchResult call() throws Exception {
 		run();
 		return getResult();
 	}
 
 }