(function($) {

	FLBuilderAccordion = function( settings )
	{
		this.settings  = settings;
		this.nodeClass = '.fl-node-' + settings.id;
		this._init();
	};

	FLBuilderAccordion.prototype = {

		settings	: {},
		nodeClass   : '',

		_init: function()
		{
			$( this.nodeClass + ' .fl-accordion-button' ).on( 'click', $.proxy( this._buttonClick, this ) );

			FLBuilderLayout.preloadAudio( this.nodeClass + ' .fl-accordion-content' );

			this._openDefaultItem();
		},

		_buttonClick: function( e )
		{
			var button     = $( e.target ).closest( '.fl-accordion-button' ),
				accordion  = button.closest( '.fl-accordion' ),
				item       = button.closest( '.fl-accordion-item' ),
				allContent = accordion.find( '.fl-accordion-content' ),
				allIcons   = accordion.find( '.fl-accordion-button i.fl-accordion-button-icon' ),
				content    = button.siblings( '.fl-accordion-content' ),
				icon       = button.find( 'i.fl-accordion-button-icon' );

			if (accordion.hasClass( 'fl-accordion-collapse' )) {
				accordion.find( '.fl-accordion-item-active' ).removeClass( 'fl-accordion-item-active' );
				allContent.slideUp( 'normal' );
				allIcons.removeClass( 'fa-minus' );
				allIcons.addClass( 'fa-plus' );
			}

			if (content.is( ':hidden' )) {
				item.addClass( 'fl-accordion-item-active' );
				content.slideDown( 'normal', this._slideDownComplete );
				icon.addClass( 'fa-minus' );
				icon.removeClass( 'fa-plus' );
			} else {
				item.removeClass( 'fl-accordion-item-active' );
				content.slideUp( 'normal', this._slideUpComplete );
				icon.addClass( 'fa-plus' );
				icon.removeClass( 'fa-minus' );
			}
		},

		_slideUpComplete: function()
		{
			var content   = $( this ),
				accordion = content.closest( '.fl-accordion' );

			accordion.trigger( 'fl-builder.fl-accordion-toggle-complete' );
		},

		_slideDownComplete: function()
		{
			var content   = $( this ),
				accordion = content.closest( '.fl-accordion' ),
				item      = content.parent(),
				win       = $( window );

			FLBuilderLayout.refreshGalleries( content );

			// Grid layout support (uses Masonry)
			FLBuilderLayout.refreshGridLayout( content );

			// Post Carousel support (uses BxSlider)
			FLBuilderLayout.reloadSlider( content );

			// WP audio shortcode support
			FLBuilderLayout.resizeAudio( content );

			if ( item.offset().top < win.scrollTop() + 100 ) {
				$( 'html, body' ).animate({
					scrollTop: item.offset().top - 100
				}, 500, 'swing');
			}

			accordion.trigger( 'fl-builder.fl-accordion-toggle-complete' );
		},

		_openDefaultItem: function()
		{
			if (typeof this.settings.defaultItem !== 'undefined') {
				var item = $.isNumeric( this.settings.defaultItem ) ? (this.settings.defaultItem - 1) : null;

				if (item !== null) {
					$( this.nodeClass + ' .fl-accordion-button' ).eq( item ).trigger( 'click' );
				}
			}
		}
	};

})(jQuery);