<?php
/**
 * TEMPORARY test probe for the 2meet-DO integration test (2026-09-26). Delete after testing.
 * Only active when the request carries header "X-S36-Probe: 1".
 */
if ( empty( $_SERVER['HTTP_X_S36_PROBE'] ) ) {
	return;
}
add_action(
	'template_redirect',
	function () {
		global $wp_query, $wpdb;
		$ids = wp_list_pluck( (array) $wp_query->posts, 'ID' );
		header( 'X-S36-Found: ' . (int) $wp_query->found_posts );
		header( 'X-S36-Ids: ' . implode( ',', array_map( 'intval', $ids ) ) );
		header( 'X-S36-Queries: ' . (int) $wpdb->num_queries );
		header( 'X-S36-Routed: ' . ( false !== strpos( (string) $wp_query->request, 'wpdo' ) ? 1 : 0 ) );
		header( 'X-S36-Sql: ' . substr( preg_replace( '/\s+/', ' ', (string) $wp_query->request ), 0, 1500 ) );
		header( 'X-S36-Ms: ' . round( ( microtime( true ) - $_SERVER['REQUEST_TIME_FLOAT'] ) * 1000 ) );
	},
	0
);