class ErrorPresenter extends Presenter
{

    /**
     * @var \Monolog\Logger
     * @inject
     */
    public $logger;

    /**
     * @param \Exception $exception
     * @return void
     */
    public function renderDefault($exception)
    {
        if ($exception instanceof Nette\Application\BadRequestException) {
            if ($exception instanceof Nette\Application\ForbiddenRequestException && $this->isFromAdmin()) {
                $this->setView('403');
            } else {
                $this->setView('4xx');
            }

            $this->template->statusCode = $exception->getCode();
            $this->accessLog($exception);

        } elseif ($exception instanceof Kdyby\Redis\SessionHandlerException) {
            if (!$this->getHttpResponse()->isSent()) {
                $this->getHttpResponse()->setCode(429); // 429 Too Many Requests
            }

            $this->setView('429');
            $this->accessLog($exception, 429);

        } else {
            $this->setView('500'); // load template 500.latte
            Debugger::log($exception, Debugger::ERROR); // and log exception
        }

        if ($this->isAjax()) { // AJAX request? Just note this error in payload.
            $this->payload->error = TRUE;
            $this->terminate();
        }
    }



    protected function accessLog(\Exception $exception, $code = NULL)
    {
        $projectRoot = dirname(dirname(dirname(__DIR__))) . '/';

        // log to access.log
        $this->logger->addInfo(
            sprintf('HTTP code %d: %s in %s:%d at %s',
                $code ?: $exception->getCode(),
                $exception->getMessage(),
                str_replace($projectRoot, '', $exception->getFile()),
                $exception->getLine(),
                (string) $this->getHttpRequest()->getUrl()
            ),
            [
                'referer' => (string) $this->getHttpRequest()->getReferer(),
                'channel' => 'access',
            ]
        );
    }