public function getBackups()
    {
        $backups = array_diff(scandir($this->backupPath), array('..', '.'));
        $output = [];

        foreach ($backups as $backup) {
            $filenamePrefix = preg_quote(self::BACKUP_FILENAME_PREFIX, '/');
            $filenameSuffix = preg_quote(self::BACKUP_FILENAME_SUFFIX, '/');
            $filenameRegex  = '/^' .$filenamePrefix. '(\d{4})_(\d{2})_(\d{2})_(\d{2})(\d{2})(\d{2})' .$filenameSuffix. '$/';

            $datetime = preg_replace($filenameRegex, '$1-$2-$3 $4:$5:$6', $backup);

            $data = [
                'filename'   => $backup,
                'filepath'   => $this->backupPath . $backup,
                'created_at' => $datetime,
            ];

            $output[] = $data;
        }

        return $output;
    }