<?php

namespace App\Filters;

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

class RateLimitFilter implements FilterInterface
{

    public function before(RequestInterface $request, $arguments = null)
    {
        $throttler = service('throttler');

        // sanitize IP for cache
        $key = preg_replace('/[^a-zA-Z0-9_]/', '_', $request->getIPAddress());

        if ($throttler->check($key, 25, MINUTE) === false) {
            return service('response')
                ->setStatusCode(429)
                ->setJSON([
                    'status'  => 'error',
                    'message' => 'Too many requests. Try again later.'
                ]);
        }
    }


    public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
    {
        // nothing
    }
}