/* --------------------------------------------------------------
 page_loading.js 2015-09-17 gm
 Gambio GmbH
 http://www.gambio.de
 Copyright (c) 2015 Gambio GmbH
 Released under the GNU General Public License (Version 2)
 [http://www.gnu.org/licenses/gpl-2.0.html]
 --------------------------------------------------------------
 */

/**
 * ## Page Loading Module
 *
 * This module will display a loading page screen for approximately 1 second,
 * the time needed by the engine for the conversion. It will also fade the page
 * out when the user leaves a page, making the transition very smooth.
 *
 * @module Compatibility/page_loading
 */
gx.compatibility.module(
    'page_loading',

    [],

    /**  @lends module:Compatibility/page_loading */

    function (data) {

        'use strict';

        // ------------------------------------------------------------------------
        // VARIABLES DEFINITION
        // ------------------------------------------------------------------------

        var
            /**
             * Module Selector
             *
             * @var {object}
             */
            $this = $(this),

            /**
             * Default Options
             *
             * @type {object}
             */
            defaults = {},

            /**
             * Final Options
             *
             * @var {object}
             */
            options = $.extend(true, {}, defaults, data),

            /**
             * Excluded pages to prevent white fade in.
             * @type {string[]}
             */
            excludedPages = [
                'backup.php',
                'gm_backup_files_zip.php',
                'orders_iloxx.php'
            ],

            /**
             * Module Object
             *
             * @type {object}
             */
            module = {};

        // ------------------------------------------------------------------------
        // PRIVATE FUNCTIONS
        // ------------------------------------------------------------------------

        var _pageLoad = function () {
            // show page content
            $this.delay(300).fadeIn(200, function () {
                $this.removeClass('hidden');
            });
        };

        var _pageUnload = function () {
            $('body').fadeOut(100); // Hide the entire body tag
        };

        /**
         * Indicates if the current page is contained in excluded pages array.
         * @return {boolean}
         */
        var _isExcludedPage = function () {
            var currentFile, found, result;

            currentFile = jse.libs.url_arguments.getCurrentFile();
            found = excludedPages.indexOf(currentFile);

            return found !== -1 ? true : false;
        };

        // ------------------------------------------------------------------------
        // INITIALIZATION
        // ------------------------------------------------------------------------

        module.init = function (done) {

            //_pageLoad();

            $(window).on('beforeunload', function () {
                if (!_isExcludedPage()) {
                    _pageUnload();
                }
            });


            $('body').on('JSENGINE_INIT_FINISHED', function () {
                $this.fadeIn(200, function () {
                    $this.removeClass('hidden');
                });
            });

            done();
        };

        return module;
    });