/**
  * Intercepts the data about to be passed to KISSMetrics, replacing the order
  * totals with their counterpart in base currency.
  *
  * @param array kissmetrics_properties The data to be passed to KISSMetrics.
  * @return array
  */
 public function wc_kissmetrics_completed_purchase_properties($kissmetrics_properties)
 {
     $order_id = get_value('order_id', $kissmetrics_properties);
     if (!empty($order_id)) {
         $order = new Aelia_Order($order_id);
         $kissmetrics_properties['order_total'] = $order->get_total_in_base_currency();
         $kissmetrics_properties['shipping_total'] = $order->get_shipping_in_base_currency();
     }
     return $kissmetrics_properties;
 }