var awrUtility =
( function( $ ) {
	var sidebar_selector = '.awr-row';

	/* Public function */
	function manage_amounts_of_widgets_and_rows() {
		$( sidebar_selector ).map( function() {
			$sidebar = $( this );
			manage_sidebar( $sidebar );
		} );
	}

	function manage_sidebar( $sidebar ) {
		hide_or_show_button_to_delete_sidebar( $sidebar );
		set_class_based_on_child_widgets( $sidebar );
		manage_number_of_sidebars_and_widgets( $sidebar );
	}

	function hide_or_show_button_to_delete_sidebar( $sidebar ) {
		if ( has_widgets( $sidebar ) && ( is_only_one_sidebar_on_page() ) ) {
			hide_button_to_delete_sidebar();
		}
		else {
			show_button_to_delete_sidebar();
		}
	}

	function has_widgets( $sidebar ) {
		if ( $sidebar.children( '.widget' ) ) {
			return ( $sidebar.children( '.widget' ).length > 0 );
		}
	}

	function is_only_one_sidebar_on_page() {
		return ( $( sidebar_selector ).length === 1 );
	}

	function hide_button_to_delete_sidebar() {
		$( '.awr-delete-sidebar' ).css( 'display' , 'none' );
	}

	function show_button_to_delete_sidebar() {
		$( '.awr-delete-sidebar' ).show();
	}

	function set_class_based_on_child_widgets( $sidebar ) {
		if ( has_widgets( $sidebar ) ) {
			set_has_child_widget( $sidebar );
		}
		else if ( ! has_widgets( $sidebar ) ) {
			set_no_child_widget( $sidebar );
		}
	}

	function set_has_child_widget( $sidebar ) {
		$sidebar.removeClass( 'awr-empty' );
	}

	function set_no_child_widget( $sidebar ) {
		$sidebar.addClass( 'awr-empty' );
	}

	function manage_number_of_sidebars_and_widgets( $sidebar ) {
		if ( ( ! has_widgets( $sidebar ) ) && ( is_only_one_sidebar_on_page() ) ) {
			set_only_sidebar_and_no_widget( $sidebar );
		}
		else {
			set_page_has_multiple_sidebars_or_widgets( $sidebar );
		}
	}

	function set_only_sidebar_and_no_widget( $sidebar ) {
		$sidebar.addClass( 'awr-only-sidebar' );
		$sidebar.find( '.awr-popover-add-new' ).click();
	}

	function set_page_has_multiple_sidebars_or_widgets( $sidebar ) {
		$sidebar.removeClass( 'awr-only-sidebar' );
	}

	return { manage_amounts_of_widgets_and_rows : manage_amounts_of_widgets_and_rows };

} )( jQuery );