/**
 * @name		Page Builder CK
 * @package		com_pagebuilderck
 * @copyright	Copyright (C) 2017. All rights reserved.
 * @license		GNU General Public License version 2 or later; see LICENSE.txt
 * @author		Cedric Keiflin - https://www.template-creator.com - https://www.joomlack.fr
 */


/*
 * Plugin to manage the gallery
 */
(function($) {
	"use strict";
	var PBCK_gallery = function(el, opts) {
		if (!(this instanceof PBCK_gallery)) return new PBCK_gallery(el, opts);

		// init vars
		var defaults = {};
		var opts = $.extend(defaults, opts);
		var t = this;
		t.gallery = $(el);

		var isInterface = t.gallery.parents('#workspaceck').length || t.gallery.parents('#previewarea').length;
		var loader;
		var rad = 0;
		var radSum = 0.005;

		opts.autoplay = t.gallery.find('.pbck_slides').attr('data-autoplay') == '1' && !isInterface;
		opts.pausehover = t.gallery.find('.pbck_slides').attr('data-pausehover') == '1' && !isInterface;
		opts.time = t.gallery.find('.pbck_slides').attr('data-time') || 5000;

		t.gallery.anim = function(control) {anim(control)};

		t.gallery.data('processed', '1');

		init();

		// activate autoplay only if not in edition mode
		if (opts.autoplay) autoplay();

		if (opts.pausehover == '1') {
			t.gallery.hover(
				function() {
					$(this).addClass('pausedck');
				}, function() {
					$(this).removeClass('pausedck');
				}
			);
		}

		function init() {
			t.gallery.removeClass('pbck_animate');
			t.gallery.height('');
			t.gallery.find('.pbck_wrapinner')
				.width((t.gallery.find('.pbck_slide').length*100)+'%')
				.css('marginLeft', '0');
			t.gallery.find('.pbck_slide').width((100/t.gallery.find('.pbck_slide').length)+'%');
			t.gallery.find('.pbck_slide.current').removeClass('current');
			t.gallery.find('.pbck_slide').eq(0).addClass('current');
			t.gallery.find('.pbck_gallery_control').click(function() { t.gallery.anim(this); });
			t.gallery.addClass('pbck_animate');
		}

		function next() {
			anim(t.gallery.find('.control_next'));
		}
	
		function prev() {
			anim(t.gallery.find('.control_prev'));
		}

		function anim(control) {
			var nb = t.gallery.find('.pbck_slide').length;
			var index;
			var cur_slide = t.gallery.find('.pbck_slide.current');

			if ($(control).hasClass('control_next')) {
				if (t.gallery.find('.pbck_slide.current').next().length) {
					index =  t.gallery.find('.pbck_slide').index(cur_slide) + 1;
				} else {
					index = 0;
				}
			} else {
				if (t.gallery.find('.pbck_slide.current').prev().length) {
					index =  t.gallery.find('.pbck_slide').index(cur_slide) - 1;
				} else {
					index = nb - 1;
				}
			}

			t.gallery.find('.pbck_wrapinner').css('margin-left', '-'+(index*100)+'%');
			t.gallery.find('.pbck_slide.current').removeClass('current');
			t.gallery.find('.pbck_slide').eq(index).addClass('current');
			t.gallery.animate({'height': t.gallery.find('.pbck_slide').eq(index).height()}, 300);
			
			resetAutoplay();
			if (opts.autoplay) autoplay();
		}
		
		
		function autoplay() {
			if (! opts.autoplay) return;
			clearInterval(loader);
			loader = setInterval(
				function(){
					if(rad<1 && !t.gallery.hasClass('pausedck')){
						rad = (rad+radSum);
						if (rad > 1) rad = 1;
					} else if (rad<=1 && t.gallery.hasClass('pausedck')){
						rad = rad;
					} else {
						clearInterval(loader);
						if(!t.gallery.hasClass('pausedck')) {
							resetAutoplay();
							next();
						}
					}
				}
			, opts.time*radSum);
		}
	
		function resetAutoplay() {
			clearInterval(loader);
			rad = 0;
		}

		// return instance
		return t;
	}
	window.PBCK_gallery = PBCK_gallery;
})(jQuery);

// function used in the interface when creating a new gallery
function pbck_gallery_init(galleryId) {
	new PBCK_gallery(document.getElementById(galleryId));
}

function pbck_gallery_show(control) {
	// B/C to avoid JS errors on click on the controls
}

jQuery(document).ready(function(){
	// Loop though all gallerys to initialise them
	jQuery('.pbck_gallery').each(function() {
		new PBCK_gallery(this);
	});
});