Integrate SearchWP with JetSmartFilters search using JetEngine Listing Grid to display results

searchwp-customizations.php

<?php

// Integrate SearchWP with JetSmartFilters search using
// JetEngine Listing Grid to display results.
add_action( 'pre_get_posts', function( $wp_query ) {
	if (
		! isset( $wp_query->query['jet_smart_filters' ] )
		|| empty( $wp_query->query['s'] )
	) {
		return;
	}

	$swp_query = new \SWP_Query( array(
		'engine'   => 'default',
		's'        => $wp_query->query['s'],
		'fields'   => 'ids',
		'nopaging' => true
	) );

	$results = ! empty( $swp_query->posts ) ? $swp_query->posts : array( 0 );

	$wp_query->set( 'post__in', $results );
	$wp_query->set( 'post_type', 'any' );
	$wp_query->set( 'post_status', 'any' );
	$wp_query->set( 'orderby', 'post__in' );
	$wp_query->set( 'order', 'DESC' );
	$wp_query->set( 's', false );
}, 9999 );

Thanks a trillion!