/**
 * Copyright (C) 2003  Manfred Andres
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 * 
 * Created on 28.09.2003
 */

package freecs.commands;
import freecs.interfaces.ICommand;
import freecs.content.MessageState;
import freecs.core.UserManager;

/**
 * @author Manfred Andres
 *
 * freecs.commands
 */
public class CmdPrivateMessage extends AbstractCommand {
	public final String cmd= "/m";
	private static final ICommand selve=new CmdPrivateMessage();

	private CmdPrivateMessage () { }
	
	public static ICommand getInstance () {
		return selve;
	}
	
	public boolean execute (MessageState msgState, String param) {
        if (param.length () < 1) {
            msgState.msgTemplate = "error.m.noArg";
            msgState.sender.sendMessage (msgState.mp);
            return false;
		}
		int pos = param.indexOf (" ");
		if (pos == -1) {
            msgState.usercontext = UserManager.mgr.getUserByName (param);
            if (msgState.usercontext != null) { 
                msgState.msgTemplate = "error.m.noMessage";
                msgState.sender.sendMessage (msgState.mp);
            } else {
                msgState.param = param;
                msgState.msgTemplate = "error.user.notOnServer.singular";
                msgState.sender.sendMessage(msgState.mp);
            }
            return false;
		}
		msgState.usercontext = getUser (msgState, param.substring (0, pos));
		if (msgState.usercontext == null)
            return false;
        if (!msgState.usercontext.usrMayWhisper(msgState.sender)) {
            msgState.msgTemplate = "error.m.cantHearYou";
            msgState.sender.sendMessage(msgState.mp);
            return false;
        }
		msgState.message = param.substring (pos).trim ();
		sendPrivateMessage (msgState, msgState.usercontext, msgState.message);
		return true;
	}
}