/**
 * Event handler for onCPayAfterPaymentStatusUpdateEvent, called each time an update occurs to the payment status of the payment basket
 *
 * Paypal status mappings:
 * CB Unified status				Paypal status
 * Completed				<--		Completed
 * Processed				<--		Processed, Canceled_Reversal
 * Denied					<--		Denied, Expired, Failed, Voided
 * Refunded					<--		Reversed, Refunded, Partially-Refunded
 * Pending					<--		Pending, In-Progress
 * RegistrationCancelled	<--		A new cb registration got cancelled by user (e.g. paypal cancel payment button)
 *
 * @param  UserTable           $user                   User paying the payment basket
 * @param  cbpaidPaymentBasket $paymentBasket          Payment basket
 * @param  cbpaidSomething[]   $subscriptions          Subscriptions in the basket
 * @param  string              $unifiedStatus          New Unified status (see above)
 * @param  string              $previousUnifiedStatus  Previous Unified status (see above)
 * @param  string              $eventType              type of event (paypal type): 'web_accept', 'subscr_payment', 'subscr_signup', 'subscr_modify', 'subscr_eot', 'subscr_cancel', 'subscr_failed'
 * @param  cbpaidPaymentNotification   $notification    notification object of the payment
 * @return void
 */
public function onCPayAfterPaymentStatusUpdateEvent( &$user, &$paymentBasket, &$subscriptions, $unifiedStatus, $previousUnifiedStatus, $eventType, &$notification ) {}