/*
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */
package silentium.gameserver.handler;

import gnu.trove.map.hash.TIntObjectHashMap;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class AdminCommandHandler
{
	private static Logger _log = LoggerFactory.getLogger(AdminCommandHandler.class.getName());
	private final TIntObjectHashMap<IAdminCommandHandler> _datatable;

	public static AdminCommandHandler getInstance()
	{
		return SingletonHolder._instance;
	}

	protected AdminCommandHandler()
	{
		_datatable = new TIntObjectHashMap<>();
	}

	public void registerAdminCommandHandler(IAdminCommandHandler handler)
	{
		String[] ids = handler.getAdminCommandList();
		for (String id : ids)
		{
			_log.trace("Adding handler for command " + id);
			_datatable.put(id.hashCode(), handler);
		}
	}

	public IAdminCommandHandler getAdminCommandHandler(String adminCommand)
	{
		String command = adminCommand;

		if (adminCommand.indexOf(" ") != -1)
			command = adminCommand.substring(0, adminCommand.indexOf(" "));

		_log.trace("getting handler for command: " + command + " -> " + (_datatable.get(command.hashCode()) != null));
		return _datatable.get(command.hashCode());
	}

	/**
	 * @return
	 */
	public int size()
	{
		return _datatable.size();
	}

	private static class SingletonHolder
	{
		protected static final AdminCommandHandler _instance = new AdminCommandHandler();
	}
}