wwt.app.factory(
  'Community',
  [
    '$http',
    '$q',
    '$timeout',
    'Util',

    function ($http, $q, $timeout, util) {
      var api = {
	getRoot: getRoot,
	getChildren: getChildren

      };

      var root,
	  rootFolders,
	  openCollectionsFolder;

      function getRoot() {
	var deferred = $q.defer();
	initPromise.then(function (folders) {
	  rootFolders = folders;
	  $.each(folders, function(i,item) {
            util.rewritePlaceUrls(item);
	  });

	  deferred.resolve(folders);
	});

	return deferred.promise;
      }

      function getChildren(obj) {
	var deferred = $q.defer();

	obj.childLoadCallback(function () {
	  var children = obj.get_children();

	  $.each(children, function (i, item) {
	    item.guid = obj.guid + '.' + (item.get_isFolder() ? item.get_name() : i);
            util.rewritePlaceUrls(item);
	  });

	  deferred.resolve(transformData(children));
	});

	return deferred.promise;
      }

      var init = function () {
	var deferred = $q.defer();

	function tryInit() {
	  if (!wwt.wc) {
	    setTimeout(tryInit, 333);
	    return;
	  }
	  root = wwt.wc.createFolder();

	  root.loadFromUrl(wwt.communitiesUrlPrefix + '/Resource/Service/Payload', function () {
	    deferred.resolve(root.get_children());
	  });
	}

	tryInit();

	return deferred.promise;
      };

      var initPromise = init();

      return api;
    }
  ]
);