From 95c51ecdcdeed8a5ab7110b3b6947eebfea13b67 Mon Sep 17 00:00:00 2001
From: Joel <joel@Joels-MacBook-Pro.local>
Date: Fri, 29 May 2020 13:25:03 -0500
Subject: [PATCH] Added support for void

---
 src/base/Gateway.php | 47 +++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 46 insertions(+), 1 deletion(-)

diff --git a/src/base/Gateway.php b/src/base/Gateway.php
index 928a0e1..333f783 100644
--- a/src/base/Gateway.php
+++ b/src/base/Gateway.php
@@ -111,6 +111,11 @@ abstract class Gateway extends BaseGateway
      */
     public $sendCartInfo = false;
 
+    /**
+     * @var int The amount of time in seconds a transaction can be voided after being captured.
+     */
+    public $voidWindow = 86400;
+
     /**
      * @var AbstractGateway
      */
@@ -148,6 +153,21 @@ public function capture(Transaction $transaction, string $reference): RequestRes
         return $this->performRequest($captureRequest, $transaction);
     }
 
+    /**
+     * @inheritdoc
+     */
+    public function void(Transaction $transaction, string $reference): RequestResponseInterface
+    {
+        if (!$this->supportsVoid()) {
+            throw new NotSupportedException(Craft::t('commerce', 'Voiding is not supported by this gateway'));
+        }
+
+        $request = $this->createRequest($transaction);
+        $captureRequest = $this->prepareVoidRequest($request, $reference);
+
+        return $this->performRequest($captureRequest, $transaction);
+    }
+
     /**
      * @inheritdoc
      */
@@ -314,7 +334,7 @@ public function deletePaymentSource($token): bool
      *
      * @param CreditCard            $card        The credit card to populate.
      * @param CreditCardPaymentForm $paymentForm The payment form.
-     *                                    
+     *
      * @return void
      */
     public function populateCard($card, CreditCardPaymentForm $paymentForm)
@@ -395,6 +415,14 @@ public function supportsCapture(): bool
         return $this->gateway()->supportsCapture();
     }
 
+    /**
+     * @inheritdoc
+     */
+    public function supportsVoid(): bool
+    {
+        return $this->gateway()->supportsVoid();
+    }
+
     /**
      * @inheritdoc
      */
@@ -800,6 +828,23 @@ protected function prepareCaptureRequest($request, string $reference): RequestIn
         return $captureRequest;
     }
 
+    /**
+     * Prepare a void request from request data and reference of the transaction being voided.
+     *
+     * @param array  $request
+     * @param string $reference
+     *
+     * @return RequestInterface
+     */
+    protected function prepareVoidRequest($request, string $reference): RequestInterface
+    {
+        /** @var AbstractRequest $captureRequest */
+        $captureRequest = $this->gateway()->void($request);
+        $captureRequest->setTransactionReference($reference);
+
+        return $captureRequest;
+    }
+
     /**
      * Prepare a purchase request from request data.
      *