package data
{	
	import mx.events.CollectionEvent;
	
	public class Tree extends DataElement
	{
		public var dataSource:DataSource;
			
		public function buildTree() : void {
			dataSource.servers.addEventListener(CollectionEvent.COLLECTION_CHANGE, serversChanged);
			dataSource.contexts.addEventListener(CollectionEvent.COLLECTION_CHANGE, contextsChanged);
			dataSource.maps.addEventListener(CollectionEvent.COLLECTION_CHANGE, mapsChanged);
			dataSource.layers.addEventListener(CollectionEvent.COLLECTION_CHANGE, layersChanged);
			dataSource.configs.addEventListener(CollectionEvent.COLLECTION_CHANGE, configsChanged);
			dataSource.queryAspects.addEventListener(CollectionEvent.COLLECTION_CHANGE, queryAspectsChanged);
			dataSource.templates.addEventListener(CollectionEvent.COLLECTION_CHANGE, templatesChanged);
			dataSource.reports.addEventListener(CollectionEvent.COLLECTION_CHANGE, reportsChanged);
		}
		
		public function cleanup() : void {
			dataSource.servers.removeEventListener(CollectionEvent.COLLECTION_CHANGE, serversChanged);
			dataSource.contexts.removeEventListener(CollectionEvent.COLLECTION_CHANGE, contextsChanged);
			dataSource.maps.removeEventListener(CollectionEvent.COLLECTION_CHANGE, mapsChanged);
			dataSource.layers.removeEventListener(CollectionEvent.COLLECTION_CHANGE, layersChanged);
			dataSource.configs.removeEventListener(CollectionEvent.COLLECTION_CHANGE, configsChanged);
			dataSource.queryAspects.removeEventListener(CollectionEvent.COLLECTION_CHANGE, queryAspectsChanged);
			dataSource.templates.removeEventListener(CollectionEvent.COLLECTION_CHANGE, templatesChanged);
			dataSource.reports.removeEventListener(CollectionEvent.COLLECTION_CHANGE, reportsChanged);
			collection.removeAll();
		}
		
		protected function getRef(item:XML) : XML {
			return dataSource.getRef(item);
		}
		
		private function isIn(item:XML, list:XMLList) : Boolean {
			for each(var currentItem:XML in list) {
				if(currentItem.@id == item.@id
					&& currentItem.@clientId == item.@clientId) {
					return true;
				}
			}
			return false;
		}
		
		protected function updateRefs(propRefs:XMLList, treeRefs:XML) : void {
			if(propRefs && treeRefs) {
				var newChildren:XMLList = new XMLList();
				for each(var item:XML in propRefs) {
					newChildren += getRef(item);					
				}
				treeRefs.setChildren(newChildren);
			}
		}
		
		protected function titleCompare(a:Object, b:Object) : int {
			var titleA:String = dataSource.getTitle(a as XML);
			var titleB:String = dataSource.getTitle(b as XML);
			
			return titleA.localeCompare(titleB);
		}
		
		protected function serversChanged(event:CollectionEvent) : void {
			
		}
		
		protected function contextsChanged(event:CollectionEvent) : void {
			
		}
		
		protected function mapsChanged(event:CollectionEvent) : void {
			
		}
		
		protected function layersChanged(event:CollectionEvent) : void {
			
		}
		
		protected function configsChanged(event:CollectionEvent) : void {
			
		}
		
		protected function queryAspectsChanged(event:CollectionEvent) : void {
			
		}
		
		protected function templatesChanged(event:CollectionEvent) : void {
			
		}
		
		protected function reportsChanged(event:CollectionEvent) : void {
			
		}
	}
}