MediaCollectorLibary/app/Http/Middleware/AuthMiddleware.php

<?php

namespace App\Http\Middleware;

use App\Services\AuthService;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;

class AuthMiddleware implements MiddlewareInterface
{
    private AuthService $auth;

    public function __construct(AuthService $auth)
    {
        $this->auth = $auth;
    }

    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        // Check if user is logged in
        if (!$this->auth->isLoggedIn()) {
            $response = new \Slim\Psr7\Response();
            return $response->withStatus(302)->withHeader('Location', '/login');
        }

        // Add user to request attributes
        $request = $request->withAttribute('user', $this->auth->getCurrentUser());

        return $handler->handle($request);
    }
}