Option to send currency in Google Adwords when using dynamic value

app/code/Magento/GoogleAdwords/Helper/Data.php

@@ -35,6 +35,11 @@ class Data extends \Magento\Framework\App\Helper\AbstractHelper
      */
     const CONVERSION_VALUE_REGISTRY_NAME = 'google_adwords_conversion_value';
 
+    /**
+     * Google AdWords registry name for conversion value currency
+     */
+    const CONVERSION_VALUE_CURRENCY_REGISTRY_NAME = 'google_adwords_conversion_value_currency';
+
     /**
      * Default value for conversion value
      */
@@ -59,6 +64,11 @@ class Data extends \Magento\Framework\App\Helper\AbstractHelper
 
     const XML_PATH_CONVERSION_VALUE = 'google/adwords/conversion_value';
 
+    /**
+     * Google Adwords send order conversion value currency when using dynamic value
+     */
+    const XML_PATH_SEND_CURRENCY = 'google/adwords/send_currency';
+
     /**#@-*/
 
     /**#@+
@@ -264,4 +274,30 @@ public function getConversionValue()
         }
         return empty($conversionValue) ? self::CONVERSION_VALUE_DEFAULT : $conversionValue;
     }
+
+    /**
+     * Get send order currency to Google Adwords
+     *
+     * @return boolean
+     */
+    public function hasSendConversionValueCurrency()
+    {
+        return $this->scopeConfig->isSetFlag(
+            self::XML_PATH_SEND_CURRENCY,
+            \Magento\Store\Model\ScopeInterface::SCOPE_STORE
+        );
+    }
+
+    /**
+     * Get Google AdWords conversion value currency
+     *
+     * @return string|false
+     */
+    public function getConversionValueCurrency()
+    {
+        if ($this->hasSendConversionValueCurrency()) {
+            return (string) $this->_registry->registry(self::CONVERSION_VALUE_CURRENCY_REGISTRY_NAME);
+        }
+        return false;
+    }
 }

app/code/Magento/GoogleAdwords/Observer/SetConversionValueObserver.php

@@ -58,11 +58,19 @@ public function execute(\Magento\Framework\Event\Observer $observer)
             return $this;
         }
         $this->_collection->addFieldToFilter('entity_id', ['in' => $orderIds]);
+
         $conversionValue = 0;
-        /** @var $order \Magento\Sales\Model\Order */
+        $conversionCurrency = false;
+        $sendOrderCurrency = $this->_helper->hasSendConversionValueCurrency();
         foreach ($this->_collection as $order) {
-            $conversionValue += $order->getBaseGrandTotal();
+            /** @var $order \Magento\Sales\Api\Data\OrderInterface */
+            $conversionValue += $sendOrderCurrency ? $order->getGrandTotal() : $order->getBaseGrandTotal();
+            $conversionCurrency = $sendOrderCurrency ? $order->getOrderCurrencyCode() : false;
         }
+        $this->_registry->register(
+            \Magento\GoogleAdwords\Helper\Data::CONVERSION_VALUE_CURRENCY_REGISTRY_NAME,
+            $conversionCurrency
+        );
         $this->_registry->register(
             \Magento\GoogleAdwords\Helper\Data::CONVERSION_VALUE_REGISTRY_NAME,
             $conversionValue

app/code/Magento/GoogleAdwords/Test/Unit/Helper/DataTest.php

@@ -171,7 +171,7 @@ public function dataProviderForTestStoreConfig()
             ['getConversionColor', \Magento\GoogleAdwords\Helper\Data::XML_PATH_CONVERSION_COLOR, 'ffffff'],
             ['getConversionLabel', \Magento\GoogleAdwords\Helper\Data::XML_PATH_CONVERSION_LABEL, 'Label'],
             ['getConversionValueType', \Magento\GoogleAdwords\Helper\Data::XML_PATH_CONVERSION_VALUE_TYPE, '1'],
-            ['getConversionValueConstant', \Magento\GoogleAdwords\Helper\Data::XML_PATH_CONVERSION_VALUE, '0']
+            ['getConversionValueConstant', \Magento\GoogleAdwords\Helper\Data::XML_PATH_CONVERSION_VALUE, '0'],
         ];
     }
 
@@ -196,6 +196,13 @@ public function testGetStoreConfigValue($method, $xmlPath, $returnValue)
         $this->assertEquals($returnValue, $this->_helper->{$method}());
     }
 
+    public function testHasSendConversionValueCurrency()
+    {
+        $this->_scopeConfigMock->expects($this->once())->method('isSetFlag')->willReturn(true);
+
+        $this->assertTrue($this->_helper->hasSendConversionValueCurrency());
+    }
+
     public function testGetConversionValueDynamic()
     {
         $returnValue = 4.1;
@@ -221,6 +228,23 @@ public function testGetConversionValueDynamic()
         $this->assertEquals($returnValue, $this->_helper->getConversionValue());
     }
 
+    public function testGetConversionValueCurrency()
+    {
+        $returnValueCurrency = 'USD';
+        $this->_scopeConfigMock->expects($this->once())->method('isSetFlag')->willReturn(true);
+        $this->_registryMock->expects(
+            $this->once()
+        )->method(
+            'registry'
+        )->with(
+            \Magento\GoogleAdwords\Helper\Data::CONVERSION_VALUE_CURRENCY_REGISTRY_NAME
+        )->will(
+            $this->returnValue($returnValueCurrency)
+        );
+
+        $this->assertEquals($returnValueCurrency, $this->_helper->getConversionValueCurrency());
+    }
+
     /**
      * @return array
      */

app/code/Magento/GoogleAdwords/Test/Unit/Observer/SetConversionValueObserverTest.php

@@ -5,6 +5,8 @@
  */
 namespace Magento\GoogleAdwords\Test\Unit\Observer;
 
+use Magento\GoogleAdwords\Helper\Data;
+
 class SetConversionValueObserverTest extends \PHPUnit\Framework\TestCase
 {
     /**
@@ -122,8 +124,11 @@ public function testSetConversionValueWhenAdwordsActiveWithOrdersIds()
     {
         $ordersIds = [1, 2, 3];
         $conversionValue = 0;
+        $conversionCurrency = 'USD';
         $this->_helperMock->expects($this->once())->method('isGoogleAdwordsActive')->will($this->returnValue(true));
         $this->_helperMock->expects($this->once())->method('isDynamicConversionValue')->will($this->returnValue(true));
+        $this->_helperMock->expects($this->once())->method('hasSendConversionValueCurrency')
+            ->will($this->returnValue(true));
         $this->_eventMock->expects($this->once())->method('getOrderIds')->will($this->returnValue($ordersIds));
         $this->_eventObserverMock->expects(
             $this->once()
@@ -133,7 +138,10 @@ public function testSetConversionValueWhenAdwordsActiveWithOrdersIds()
             $this->returnValue($this->_eventMock)
         );
 
-        $iteratorMock = $this->createMock(\Iterator::class);
+        $orderMock = $this->createMock(\Magento\Sales\Api\Data\OrderInterface::class);
+        $orderMock->expects($this->once())->method('getOrderCurrencyCode')->willReturn($conversionCurrency);
+
+        $iteratorMock = new \ArrayIterator([$orderMock]);
         $this->_collectionMock->expects($this->any())->method('getIterator')->will($this->returnValue($iteratorMock));
         $this->_collectionMock->expects(
             $this->once()
@@ -144,12 +152,18 @@ public function testSetConversionValueWhenAdwordsActiveWithOrdersIds()
             ['in' => $ordersIds]
         );
         $this->_registryMock->expects(
-            $this->once()
+            $this->atLeastOnce()
         )->method(
             'register'
-        )->with(
-            \Magento\GoogleAdwords\Helper\Data::CONVERSION_VALUE_REGISTRY_NAME,
-            $conversionValue
+        )->withConsecutive(
+            [
+                Data::CONVERSION_VALUE_CURRENCY_REGISTRY_NAME,
+                $conversionCurrency
+            ],
+            [
+                Data::CONVERSION_VALUE_REGISTRY_NAME,
+                $conversionValue,
+            ]
         );
 
         $this->assertSame($this->_model, $this->_model->execute($this->_eventObserverMock));

app/code/Magento/GoogleAdwords/etc/adminhtml/system.xml

@@ -61,6 +61,14 @@
                         <field id="*/*/conversion_value_type">0</field>
                     </depends>
                 </field>
+                <field id="send_currency" translate="label" type="select" sortOrder="18" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
+                    <label>Send Order Currency</label>
+                    <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
+                    <depends>
+                        <field id="*/*/active">1</field>
+                        <field id="*/*/conversion_value_type">1</field>
+                    </depends>
+                </field>
             </group>
         </section>
     </system>

app/code/Magento/GoogleAdwords/etc/config.xml

@@ -15,6 +15,7 @@
                 <conversion_color>FFFFFF</conversion_color>
                 <conversion_value_type>1</conversion_value_type>
                 <conversion_value>0</conversion_value>
+                <send_currency>0</send_currency>
                 <languages>
                     <ar>ar</ar>
                     <bg>bg</bg>

app/code/Magento/GoogleAdwords/view/frontend/templates/code.phtml

@@ -18,6 +18,9 @@
     var google_conversion_color = "<?= /* @escapeNotVerified */ $block->getHelper()->getConversionColor() ?>";
     var google_conversion_label = "<?= /* @escapeNotVerified */ $block->getHelper()->getConversionLabel() ?>";
     var google_conversion_value = <?= /* @escapeNotVerified */ $block->getHelper()->getConversionValue() ?>;
+    <?php if($block->getHelper()->hasSendConversionValueCurrency() && $block->getHelper()->getConversionValueCurrency()): ?>
+    var google_conversion_currency = "<?= /* @escapeNotVerified */ $block->getHelper()->getConversionValueCurrency() ?>";
+    <?php endif; ?>
     /* ]]> */
 </script>
 <script src="<?= /* @escapeNotVerified */ $block->getHelper()->getConversionJsSrc() ?>"></script>