(function($){

	FLBuilder.registerModuleHelper('accordion', {

		rules: {
			item_spacing: {
				required: true,
				number: true
			}
		},

		init: function()
		{
			var form        = $( '.fl-builder-settings' ),
				labelSize   = form.find( 'select[name=label_size]' ),
				itemSpacing = form.find( 'input[name=item_spacing]' );

			labelSize.on( 'change', this._previewLabelSize );
			itemSpacing.on( 'keyup', this._previewItemSpacing );
		},

		_previewLabelSize: function()
		{
			var size = $( '.fl-builder-settings select[name=label_size]' ).val(),
				wrap = FLBuilder.preview.elements.node.find( '.fl-accordion' );

			wrap.removeClass( 'fl-accordion-small' );
			wrap.removeClass( 'fl-accordion-medium' );
			wrap.removeClass( 'fl-accordion-large' );
			wrap.addClass( 'fl-accordion-' + size );
		},

		_previewItemSpacing: function()
		{
			var spacing = parseInt( $( '.fl-builder-settings input[name=item_spacing]' ).val(), 10 ),
				items   = FLBuilder.preview.elements.node.find( '.fl-accordion-item' );

			items.attr( 'style', '' );

			if (isNaN( spacing ) || spacing === 0) {
				items.css( 'margin-bottom', '0px' );
				items.not( ':last-child' ).css( 'border-bottom', 'none' );
			} else {
				items.css( 'margin-bottom', spacing + 'px' );
			}
		}
	});

})(jQuery);