<?php

declare(strict_types=1);

namespace App\Support\Http;

use Illuminate\Http\Request;
use Inertia\Ssr\Gateway;
use Inertia\Ssr\HttpGateway;
use Inertia\Ssr\Response;

/**
 * Times the existing Inertia SSR HTTP round-trip. Does not change SSR behavior.
 */
final class TimedInertiaSsrGateway implements Gateway
{
    public function __construct(private readonly HttpGateway $inner)
    {
    }

    public function dispatch(array $page): ?Response
    {
        $started = hrtime(true);
        $response = $this->inner->dispatch($page);
        $durationMs = (hrtime(true) - $started) / 1_000_000;

        $request = request();
        if ($request instanceof Request) {
            $request->attributes->set('http.ssr_ms', round($durationMs, 1));
        }

        return $response;
    }
}