column if there's any.
		$column_end_pattern = '/(<\s*\/div[^>]*>\s*<!--\s*\/wp:column\s+[^>]*-->)/';
		if ( preg_match( $column_end_pattern, $block_content ) ) {
			return preg_replace( $column_end_pattern, "\n" . $search_block . "\n$1", $block_content, 1 );
		}

		// Place the search block on top of footer contents in the most inner group.
		$group_start_pattern = '/((<!--\s*wp:group\s[^>]*-->[.\s]*<\s*div[^>]*>\s*)+)/';
		if ( preg_match( $group_start_pattern, $block_content, $matches ) ) {
			return preg_replace( $group_start_pattern, "$1\n" . $search_block . "\n", $block_content, 1 );
		}

		return $block_content;
	}

	/**
	 * Autoconfig search by adding filter widgets
	 *
	 * @since  8.4.0
	 *
	 * @return array Array of config settings for search widget.
	 */
	protected function get_preconfig_widget_options() {
		$settings = array(
			'title'   => '',
			'filters' => array(),
		);

		$post_types = get_post_types(
			array(
				'public'   => true,
				'_builtin' => false,
			)
		);

		if ( ! empty( $post_types ) ) {
			$settings['filters'][] = array(
				'name'  => '',
				'type'  => 'post_type',
				'count' => 5,
			);
		}

		// Grab a maximum of 3 taxonomies.
		$taxonomies = array_slice(
			get_taxonomies(
				array(
					'public'   => true,
					'_builtin' => false,
				)
			),
			0,
			3
		);

		foreach ( $taxonomies as $t ) {
			$settings['filters'][] = array(
				'name'     => '',
				'type'     => 'taxonomy',
				'taxonomy' => $t,
				'count'    => 5,
			);
		}

		$settings['filters'][] = array(
			'name'     => '',
			'type'     => 'taxonomy',
			'taxonomy' => 'category',
			'count'    => 5,
		);

		$settings['filters'][] = array(
			'name'     => '',
			'type'     => 'taxonomy',
			'taxonomy' => 'post_tag',
			'count'    => 5,
		);

		$settings['filters'][] = array(
			'name'     => '',
			'type'     => 'date_histogram',
			'count'    => 5,
			'field'    => 'post_date',
			'interval' => 'year',
		);

		return $settings;
	}

	/**
	 * Automatically configure post types to exclude from one of the search widgets.
	 * Used primarily for backward compatibility with older Jetpack plugins, which used to store excluded post type configuration within the Jetpack Search plugin instead of as an option.
	 *
	 * @since  8.8.0
	 */
	public function auto_config_excluded_post_types() {
		// if `excluded_post_types` exists, then we do nothing.
		if ( false !== get_option( Options::OPTION_PREFIX . 'excluded_post_types', false ) ) {
			return;
		}
		$post_types         = get_post_types(
			array(
				'exclude_from_search' => false,
				'public'              => true,
			)
		);
		$enabled_post_types = array();
		$widget_options     = get_option( Helper::get_widget_option_name(), array() );

		// Prior to Jetpack 8.8, post types were enabled via Jetpack Search widgets rather than disabled via the Customizer.
		// To continue supporting post types set up in the old way, we iterate through each Jetpack Search
		// widget configuration and append each enabled post type to $enabled_post_types.
		foreach ( $widget_options as $widget_option ) {
			if ( isset( $widget_option['post_types'] ) && is_array( $widget_option['post_types'] ) ) {
				foreach ( $widget_option['post_types'] as $enabled_post_type ) {
					$enabled_post_types[ $enabled_post_type ] = $enabled_post_type;
				}
			}
		}

		if ( ! empty( $enabled_post_types ) ) {
			$post_types_to_disable = array_diff( $post_types, $enabled_post_types );
			// better to use `add_option` which wouldn't override option value if exists.
			add_option( Options::OPTION_PREFIX . 'excluded_post_types', implode( ',', $post_types_to_disable ) );
		}
	}

	/**
	 * Automatically set result format.
	 *
	 * @since  9.6.0
	 */
	public function auto_config_result_format() {
		$result_format_option_name = Options::OPTION_PREFIX . 'result_format';
		// Default format `expanded`.
		$result_format_option_value = Options::RESULT_FORMAT_EXPANDED;

		// Result format already set, skip.
		if ( get_option( $result_format_option_name, false ) ) {
			return;
		}

		// Check if WooCommerce plugin is active (based on https://docs.woocommerce.com/document/create-a-plugin/).
		if ( in_array(
			'woocommerce/woocommerce.php',
			apply_filters( 'active_plugins', Helper::get_active_plugins() ),
			true
		) ) {
			$result_format_option_value = Options::RESULT_FORMAT_PRODUCT;
		}

		update_option( $result_format_option_name, $result_format_option_value );
		return true;
	}

	/**
	 * Add current theme name as a body class for easier override
	 *
	 * @param string[] $classes An array of body class names.
	 *
	 * @return string[] The array of classes after filtering
	 */
	public function add_body_class( $classes ) {
		$classes[] = 'jps-theme-' . get_stylesheet();
		return $classes;
	}
}