use Illuminate\Support\Facades\File;
use Intervention\Image\Facades\Image;

    private function make_thumb($file){
        $file_path = storage_path('/app/media' . $file);
        //logg(file_exists($file_path));
        //logg($file_path);

        $img = Image::make($file_path);
        $img->resize(600, null, function ($constraint) {
            $constraint->aspectRatio();
        });

        $thumb_dir = storage_path('/app/pcat_thumb' . dirname($file));
        if(file_exists($thumb_dir) == false){
            File::makeDirectory($thumb_dir, 0777, true, true);
        }

        $thumb = storage_path('/app/pcat_thumb' . $file);
        $img->save($thumb);
    }