<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;
use Symfony\Component\HttpFoundation\Response;

class SecurityHeaders
{
    public function handle(Request $request, Closure $next): Response
    {
        $requestId = (string) $request->headers->get('X-Request-Id', '');
        if ($requestId !== '' && ! preg_match('/^[A-Za-z0-9._:-]{1,128}$/', $requestId)) {
            $response = response()->json(['message' => 'Invalid request id.'], 400);
            $this->applySecurityHeaders($request, $response);

            return $response;
        }

        /** @var Response $response */
        $response = $next($request);
        $this->applySecurityHeaders($request, $response);

        if ($requestId !== '') {
            $response->headers->set('X-Request-Id', $requestId);
        }

        return $response;
    }

    private function applySecurityHeaders(Request $request, Response $response): void
    {
        $headers = $response->headers;
        $headers->set('X-Content-Type-Options', 'nosniff');
        $headers->set('X-Frame-Options', 'DENY');
        $headers->set('Referrer-Policy', 'strict-origin-when-cross-origin');
        $headers->set('Permissions-Policy', 'camera=(), microphone=(), geolocation=()');

        if ($request->isSecure()) {
            $headers->set('Strict-Transport-Security', 'max-age=31536000; includeSubDomains');
        }
    }
}