/* --------------------------------------------------------------
 namespace.js 2016-05-17
 Gambio GmbH
 http://www.gambio.de
 Copyright (c) 2016 Gambio GmbH
 Released under the GNU General Public License (Version 2)
 [http://www.gnu.org/licenses/gpl-2.0.html]
 --------------------------------------------------------------
 */

(function () {

    'use strict';

    /**
     * Class Namespace
     *
     * This class is used to handle multiple collections of modules. Every namespace has its own source URL
     * for loading the data. That means that JSE can load modules from multiple places at the same time.
     *
     * @class JSE/Constructors/Namespace
     */
    class Namespace {
        /**
         * Class Constructor
         *
         * @param {String} name The namespace name must be unique within the app.
         * @param {String} source Complete URL to the namespace modules directory (without trailing slash).
         * @param {Array} collections Contains collection instances to be included in the namespace.
         */
        constructor(name, source, collections) {
            this.name = name;
            this.source = source;
            this.collections = collections; // contains the default instances   		
        }

        /**
         * Initialize the namespace collections.
         *
         * This method will create new collection instances based in the original ones.
         *
         * @return {jQuery.Promise} Returns a promise that will be resolved once every namespace collection
         * is resolved.
         */
        init() {
            const deferredCollection = [];

            for (let collection of this.collections) {
                this[collection.name] = new jse.constructors.Collection(collection.name, collection.attribute, this);
                const deferred = this[collection.name].init();
                deferredCollection.push(deferred);
            }

            return deferredCollection.length ? $.when.apply(undefined, deferredCollection).promise() : $.Deferred().resolve();
        }
    }

    jse.constructors.Namespace = Namespace;
})();