Added comments

1 files changed, 24 insertions, 3 deletions

diff --git a/src/GNU-taler-payment/class-wc-gnutaler-gateway.php b/src/GNU-taler-payment/class-wc-gnutaler-gateway.php
index 04d394f..cbb90b5 100644
--- a/src/GNU-taler-payment/class-wc-gnutaler-gateway.php
+++ b/src/GNU-taler-payment/class-wc-gnutaler-gateway.php
@@ -193,16 +193,35 @@ function gnutaler_init_gateway_class()
             );
         }
 
+        /**
+         * Callback is called, when the payment succeeds.
+         *
+         * Is called on successful payment process.
+         * User is then being forwarded to the order details page.
+         *
+         * @since 0.6.0
+         */
+
         public function callback_handler(): void
         {
 
+            if ( is_user_logged_in() )
+            {
+                $user_id = WC()->customer->get_id();
+            }
+            else
+            {
+                $user_id = 'Guest';
+            }
+
             if ( isset( $_GET['order_id'] ) ) {
 
+                //Gets the order id from the fulfillment url
                 $order_id_backend = $_GET['order_id'];
-                $order_id_array = explode('-', $order_id_backend);
+                $order_id_array = explode( '-', $order_id_backend );
                 $order_id_name = $order_id_array[0];
                 $order_id = $order_id_array[1];
-                $wc_order = wc_get_order($order_id_name);
+                $wc_order = wc_get_order( $order_id_name );
 
                 //Completes the order
                 $wc_order->payment_complete();
@@ -210,7 +229,9 @@ function gnutaler_init_gateway_class()
                 //Empties the shopping cart
                 WC()->cart->empty_cart();
 
-                wp_redirect(get_home_url() . '/checkout/order-received/' . $order_id . '/?key=' . $order_id_name);
+                $this->add_log_entry('transaction', 'Userid: ' . $user_id . ' - Orderid: ' . $order_id . ' - Payment succeeded and the user was forwarded to the order confirmed page' );
+
+                wp_redirect( get_home_url() . '/checkout/order-received/' . $order_id . '/?key=' . $order_id_name );
                 exit;
             }
         }