<?php

namespace App\Http\Middleware;

use App\Services\PublicSearchMetrics;
use Closure;
use Illuminate\Http\Request;
use Symfony\Component\HttpFoundation\Response;

final class CollectPublicSearchMetrics
{
    public function handle(Request $request, Closure $next): Response
    {
        $response = $next($request);
        $candidate = $request->attributes->get(PublicSearchMetrics::ATTRIBUTE);
        $request->attributes->remove(PublicSearchMetrics::ATTRIBUTE);
        $prefetch = str_contains(strtolower($request->header('Purpose', '').' '.$request->header('Sec-Purpose', '')), 'prefetch') || $request->header('X-Inertia-Prefetch') === 'true';
        $privacySignal = $request->header('DNT') === '1' || $request->header('Sec-GPC') === '1';
        if ($request->isMethod('GET') && $response->getStatusCode() === 200 && ! $prefetch && ! $privacySignal && is_array($candidate) && isset($candidate['channel'], $candidate['empty']) && is_string($candidate['channel']) && is_bool($candidate['empty'])) {
            app(PublicSearchMetrics::class)->record($candidate['channel'], $candidate['empty']);
        }

        return $response;
    }
}