/*
**               j###t  ########## ####   ####
**              j###t   ########## ####   ####
**             j###T               "###L J###"
**          ######P'    ##########  #########
**          ######k,    ##########   T######T
**          ####~###L   ####
**          #### q###L  ##########   .#####
**          ####  \###L ##########   #####"
**
**  $Id$
**
**  Class History
**
**  Date        Name         Description
**  ---------|------------|-----------------------------------------------
**  24Aug98     subtle       start of recorded history
**
*/

package key.commands;

import key.*;
import java.io.IOException;
import java.util.StringTokenizer;

public class Prefix extends Command
{
	public static final int MAX_LENGTH = 16;
	
	public Prefix()
	{
		setKey( "prefix" );
		usage = "[<prefix>]";
	}
	
	public void run( Player p, StringTokenizer args, String fullLine, CategoryCommand caller, InteractiveConnection ic, Flags flags ) throws IOException
	{
		if( args.hasMoreTokens() )
		{
			String newPrefix = args.nextToken();
			
			if( newPrefix.length() <= MAX_LENGTH )
			{
				if( Key.instance().getExactElement( newPrefix ) != null )
				{
					ic.sendError( "You may not set your prefix to that..." );
					return;
				}
				
					//  basically, if the first character isn't in the provided set
				p.getContext().setProperty( "prefix", newPrefix );
				
				if( args.hasMoreTokens() )
					ic.sendFeedback( "A prefix can only be a single word..." );
			}
			else
			{
				ic.sendFeedback( "That word is too long to be set as a prefix.  Please limit your prefix's to " + MAX_LENGTH + " characters." );
				return;
			}
		}
		else
			p.getContext().setProperty( "prefix", "" );
		
		ic.sendFeedback( "You set the prefix of " + p.getContext().getName() + " to '" + (String) p.getContext().getProperty( "prefix" ) + "'" );
	}
}