protected function getIncomingFiles()
    {
        $fh = $this->app->make('helper/validation/file');
        $nh = $this->app->make('helper/number');
        $incoming = $this->app->make(Incoming::class);
        $files = $incoming->getIncomingFilesystem()->listContents($incoming->getIncomingPath());
        foreach (array_keys($files) as $index) {
            $files[$index]['allowed'] = $fh->extension($files[$index]['basename']);
            $files[$index]['thumbnail'] = FileTypeList::getType($files[$index]['extension'])->getThumbnail();
            $files[$index]['displaySize'] = $nh->formatSize($files[$index]['size'], 'KB');
        }

        return $files;
    }