Force SearchWP to perform a delta update of a post after it was edited

gistfile1.php

<?php

function my_batcache_searchwp_delta_update( $post_id ) {
	if ( class_exists( 'SearchWP' ) ) {
		if ( $post->post_type != 'revision' && get_post_status( $post_id ) == 'publish' ) {
			$searchwp = SearchWP::instance();
			$searchwp->purgePost( $post_id );
			$searchwp->triggerReindex();
		}
	}
}

add_action( 'clean_post_cache', 'my_batcache_searchwp_delta_update', 999 );