add_action( 'wp_ajax_jeg_find_post', 'jeg_find_post' );

function jeg_find_post() {
	if ( isset( $_REQUEST['nonce'], $_REQUEST['query'] ) && wp_verify_nonce( sanitize_key( $_REQUEST['nonce'] ), 'jeg_find_post' ) ) {

		$query = sanitize_text_field( wp_unslash( $_REQUEST['query'] ) );

		if ( (bool) $query ) {
			add_filter(
				'posts_where',
				function ( $where ) use ( $query ) {
					global $wpdb;

					// if ( isset( $_REQUEST['string'] ) && ! empty( $_REQUEST['string'] ) ) {
					// 	$string = $_REQUEST['string'];

					$where .= $wpdb->prepare( "AND {$wpdb->posts}.post_title LIKE %s", '%' . $wpdb->esc_like( $query ) . '%' );
					// }

					return $where;
				}
			);
		}

		$query = new \WP_Query(
			[
				'post_type'      => 'post',
				'posts_per_page' => '15',
				'post_status'    => 'publish',
				'orderby'        => 'date',
				'order'          => 'DESC',
			]
		);

		$result = [];

		if ( $query->have_posts() ) {
			while ( $query->have_posts() ) {
				$query->the_post();

				$result[] = [
					'value' => get_the_ID(),
					'text'  => get_the_title(),
				];
			}
		}

		wp_reset_postdata();
		wp_send_json_success( $result );
	}
}