Calculating paperclip attachment url

calculate-paperclip-attachment-url.php

    /**
     * https://www.rubydoc.info/github/thoughtbot/paperclip/Paperclip%2FInterpolations:id_partition
     */
    protected function calculateIdPartition(int $modelId): string
    {
        $idString = $this->convertIntegerToString($modelId);
        $zeroPaddedString = str_pad($idString, 9, "0", STR_PAD_LEFT);
        $parts = str_split($zeroPaddedString, 3);
        return implode('/', $parts);
    }

    /**
     * https://www.rubydoc.info/gems/paperclip/Paperclip%2FClassMethods:has_attached_file
     *
     * The default value is “/system/:class/:attachment/:id_partition/:style/:filename
     *
     * Ruby class name would just be the base class name e.g. NewsArticle not App/Models/NewsArticle
     * It looks like the attachment is pluralized
     * For style we'll use original to get the original uploaded image
     */
    protected function calculateAttachmentUrl(string $rubyClassName, string $attachmentName, int $modelId, string $filename): string
    {
        $pluralizedClassName = Str::plural(Str::snake($rubyClassName));
        $idPartition = $this->calculateIdPartition($modelId);
        $pluralizedAttachementName = Str::plural($attachmentName);
        $filename = urlencode($filename);
        $parts = [
            'https://orbit.brightbox.com/v1/acc-jqzwj/Marquis-Leisure',
            $pluralizedClassName,
            $pluralizedAttachementName,
            $idPartition,
            'original',
            $filename,
        ];

        return implode('/', $parts);
    }