public function cacheFile($type = 'jpg', $quality = 80, $actual = false, $extras = [])
    {
        if ($type === 'guess') {
            $type = $this->guessType();
        }

        if (!$this->forceCache && !count($this->operations) && $type === $this->guessType()) {
            return $this->getFilename($this->getFilePath());
        }

        // Computes the hash
        $this->hash = $this->getHash($type, $quality, $extras);

        // Seo friendly image names
        $seofriendly = Grav::instance()['config']->get('system.images.seofriendly', false);

        if ($seofriendly) {
            $mini_hash = substr($this->hash, 0, 4) . substr($this->hash, -4);
            $cacheFile = "{$this->prettyName}-{$mini_hash}";
        } else {
            $cacheFile = "{$this->hash}-{$this->prettyName}";
        }

        $cacheFile .= '.' . $type;

        // If the files does not exists, save it
        $image = $this;

        // Target file should be younger than all the current image
        // dependencies
        $conditions = array(
            'younger-than' => $this->getDependencies()
        );

        // The generating function
        $generate = function ($target) use ($image, $type, $quality) {
            $result = $image->save($target, $type, $quality);

            if ($result !== $target) {
                throw new GenerationError($result);
            }

            Grav::instance()->fireEvent('onImageMediumSaved', new Event(['image' => $target]));
        };

        // Asking the cache for the cacheFile
        try {
            $perms = Grav::instance()['config']->get('system.images.cache_perms', '0755');
            $perms = octdec($perms);
            $file = $this->getCacheSystem()->setDirectoryMode($perms)->getOrCreateFile($cacheFile, $conditions, $generate, $actual);
        } catch (GenerationError $e) {
            $file = $e->getNewFile();
        }

        // Nulling the resource
        $this->getAdapter()->setSource(new Source\File($file));
        $this->getAdapter()->deinit();

        if ($actual) {
            return $file;
        }

        return $this->getFilename($file);
    }