/* Copyright (c) 2008, Katharine Berry
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Katharine Berry nor the names of any contributors
 *       may be used to endorse or promote products derived from this software
 *       without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY KATHARINE BERRY ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL KATHARINE BERRY BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ******************************************************************************/
 
 AjaxLife.Groups = function() {
 	var groups = {};
 	var callbacks = [];
 	
 	function docallbacks()
 	{
 		callbacks.each(function(fn) {
 			try
 			{
 				fn(groups);
 			}
 			catch(e)
 			{
 				AjaxLife.Debug("Groups: Callback failed.");
 			}
 		});
 	}
 	
 	function fillgroups(data)
 	{
 		for(var key in data.Groups)
		{
			if(key == AjaxLife.Utils.UUID.Zero) continue; // Remove the "None" that's sent if the list is empty.
			var group = data.Groups[key];
			groups[key] = group;
			AjaxLife.NameCache.AddGroup(key,group.Name);
		}
		docallbacks();
 	}
 	
 	return {
 		init: function() {
 			AjaxLife.Network.MessageQueue.RegisterCallback('CurrentGroups', fillgroups);
 			AjaxLife.Network.Send('RequestCurrentGroups');
 		},
 		RegisterCallback: function(fn) {
 			callbacks.push(fn);
 		},
 		InGroup: function(key) {
 			return !!groups[key];
 		},
 		GetGroupData: function(key) {
 			return groups[key];
 		}
 	};
 }();