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1 files changed, 22 insertions, 7 deletions

diff --git a/plugin/GNU-Taler-Payment-Gateway/class-wc-gnutaler-gateway.php b/plugin/GNU-Taler-Payment-Gateway/class-wc-gnutaler-gateway.php
index c63b1e0..4eb61ab 100644
--- a/plugin/GNU-Taler-Payment-Gateway/class-wc-gnutaler-gateway.php
+++ b/plugin/GNU-Taler-Payment-Gateway/class-wc-gnutaler-gateway.php
@@ -113,7 +113,7 @@ function gnutaler_init_gateway_class()
 		{
 			$this->id = 'gnutaler'; // payment gateway plugin ID
 			$this->logger = new WC_logger ($this->id); // setup logging
-			$this->icon = $this->plugin_url() . '/assets/images/taler.png';
+			$this->icon = plugins_url ( '/assets/images/taler.png', __FILE__ );
 			$this->has_fields = false; // We cannot use custom fields to show the QR code / do the wallet integration as WC doesn't give us the order_id at that time. Bummer.
 			$this->method_title = 'GNU Taler Gateway';
 			$this->method_description = 'This plugin enables the payment via the GNU Taler payment system'; // will be displayed on the options page
@@ -216,12 +216,15 @@ function gnutaler_init_gateway_class()
                             return $text;
                         });
 
+                        // Modify WC canonical refund e-mail notifications to add link to order status page.
+                        // (according to https://www.businessbloomer.com/woocommerce-add-extra-content-order-email/)
+                        // NOTE: I didn't manage WC to send out ANY e-mail notifications for refunds, so this is
+                        // UNTESTED. We do send out our own e-mail on refund below. This is mostly an alternative.
+                        add_action( 'woocommerce_email_before_order_table',
+                                    array ($this, 'add_content_refund_email'),
+                                    20,
+                                    4 );
 
-                        // Add action to modify e-mail consumers receive on refunds with our details.
-                        //  add_filter( 'woocommerce_email_actions', function( $email_actions ) {
-                        //    $email_actions[] = 'class_wc_gnutaler_refund_mail'; // FIXME: what does this do?!?
-                        //    return $email_actions;
-                        // });
 
                         // make sure OIDC 'login' goes to WooCommerce
                         // (Note: this probably doesn't belong here, but maybe into the
@@ -235,12 +238,24 @@ function gnutaler_init_gateway_class()
                                        $checkout_url = $woocommerce->cart->wc_get_checkout_url ();
                                        wp_redirect( $checkout_url); // or admin_url( $checkout_url) )?;
                                        exit();
-                               }, 10, 2);
+                               },
+                               10,
+                               2);
                         $user = wp_get_current_user ();
                         $token_response = $user->get('openid-connect-generic-last-token-response');
 
 		}
 
+                function add_content_refund_email ( $wc_order, $sent_to_admin, $plain_text, $email ) {
+                        if ( $email->id == 'customer_refunded_order' ) {
+                     		$backend_url = $this->get_option( 'GNU_Taler_Backend_URL' );
+                   	        $wc_order_id = $wc_order->get_order_key() . '-' . $wc_order->get_order_number();
+                                $refund_url = $backend_url . '/orders/' . $wc_order_id;
+                                echo sprintf ( __( 'Refund granted. Visit %s to obtain the refund.'),
+                                               $refund_url);
+                        }
+                }
+
                 public function payment_fields () {
                        // We do not have any.
                 }