<?php

namespace App\Filters;

use CodeIgniter\Filters\FilterInterface;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;

class AuthFilter implements FilterInterface
{
    /**
     * Check if user is authenticated
     *
     * @param RequestInterface $request
     * @param array|null       $arguments
     *
     * @return RequestInterface|ResponseInterface|string|void
     */
    public function before(RequestInterface $request, $arguments = null)
    {
        // Check if user is authenticated
        if (!defined('AUTHENTICATED') || AUTHENTICATED === false) {
            // Check if this is an AJAX request
            if ($request->isAJAX()) {
                return \Config\Services::response()
                    ->setStatusCode(401)
                    ->setJSON(['error' => 'Unauthorized']);
            }

            // Redirect to login page
            return redirect()->to('/');
        }
    }

    /**
     * Allows After filters to inspect and modify the response
     * object as needed.
     *
     * @param RequestInterface  $request
     * @param ResponseInterface $response
     * @param array|null        $arguments
     *
     * @return ResponseInterface|void
     */
    public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
    {
        // No action needed after request
    }
}