public function translateMetric($metric, $idSite, $apiMethodUniqueId)
    {
        $report = $this->getReportMetadataByUniqueId($idSite, $apiMethodUniqueId);

        if (empty($report)) {
            return;
        }

        $properties = array('metrics', 'processedMetrics', 'processedMetricsGoal');

        foreach ($properties as $prop) {
            if (!empty($report[$prop]) && is_array($report[$prop]) && array_key_exists($metric, $report[$prop])) {
                return $report[$prop][$metric];
            }
        }
    }