From 77db871cded3ae59cb1827f494e28456181683cb Mon Sep 17 00:00:00 2001
From: woutersteen <wouter@steenmeijer.nu>
Date: Fri, 9 Jan 2026 10:34:14 +0100
Subject: [PATCH] Added value adjusted field in purchase DL

---
 Config/Config.php            | 10 ++++++++++
 DataLayer/Event/Purchase.php | 23 ++++++++++++++++++++++-
 etc/adminhtml/system.xml     |  8 ++++++++
 etc/config.xml               |  1 +
 4 files changed, 41 insertions(+), 1 deletion(-)

diff --git a/Config/Config.php b/Config/Config.php
index 307e07d1..9cfc4780 100644
--- a/Config/Config.php
+++ b/Config/Config.php
@@ -229,6 +229,16 @@ public function getOrderStatesForPurchaseEvent(): array
         return explode(',', (string)$this->getModuleConfigValue('order_states_for_purchase_event'));
     }
 
+    /**
+     * Get the maximum transaction value threshold
+     *
+     * @return float
+     */
+    public function getMaxTransactionValue(): float
+    {
+        return (float)$this->getModuleConfigValue('max_transaction_value', 0);
+    }
+
     /**
      * Return a configuration value
      *
diff --git a/DataLayer/Event/Purchase.php b/DataLayer/Event/Purchase.php
index 7cf489a9..da20c839 100644
--- a/DataLayer/Event/Purchase.php
+++ b/DataLayer/Event/Purchase.php
@@ -49,13 +49,17 @@ public function get(): array
             return [];
         }
 
+        $orderValue = $this->orderTotals->getValueTotal($order);
+        $valueAdjusted = $this->calculateValueAdjusted($orderValue);
+
         return [
             'event' => 'purchase',
             'ecommerce' => [
                 'transaction_id' => $order->getIncrementId(),
                 'affiliation' => $this->config->getStoreName(),
                 'currency' => $order->getOrderCurrencyCode(),
-                'value' => $this->priceFormatter->format($this->orderTotals->getValueTotal($order)),
+                'value' => $this->priceFormatter->format($orderValue),
+                'value_adjusted' => $this->priceFormatter->format($valueAdjusted),
                 'tax' => $this->priceFormatter->format((float)$order->getTaxAmount()),
                 'shipping' => $this->priceFormatter->format($this->orderTotals->getShippingTotal($order)),
                 'coupon' => $order->getCouponCode(),
@@ -107,4 +111,21 @@ private function getDefaultOrderStates(): array
             Order::STATE_COMPLETE,
         ];
     }
+
+    /**
+     * Calculate the adjusted transaction value based on the configured maximum
+     *
+     * @param float $orderValue
+     * @return float
+     */
+    private function calculateValueAdjusted(float $orderValue): float
+    {
+        $maxTransactionValue = $this->config->getMaxTransactionValue();
+
+        if ($maxTransactionValue <= 0) {
+            return $orderValue;
+        }
+
+        return min($orderValue, $maxTransactionValue);
+    }
 }
diff --git a/etc/adminhtml/system.xml b/etc/adminhtml/system.xml
index 076a1e5b..45afd32d 100644
--- a/etc/adminhtml/system.xml
+++ b/etc/adminhtml/system.xml
@@ -135,6 +135,14 @@
                         <field id="serverside_enabled">1</field>
                     </depends>
                 </field>
+                <field id="max_transaction_value" translate="label" sortOrder="33" showInDefault="1" showInWebsite="1" showInStore="1">
+                    <label>Maximum Transaction Value</label>
+                    <comment>Maximum transaction value for purchase events. When an order value exceeds this amount, the transaction_value_adjusted field will be capped at this value. Leave empty or 0 to disable.</comment>
+                    <validate>validate-number validate-zero-or-greater</validate>
+                    <depends>
+                        <field id="enabled">1</field>
+                    </depends>
+                </field>
             </group>
         </section>
     </system>
diff --git a/etc/config.xml b/etc/config.xml
index 5c6d9f0d..97c8ac4c 100644
--- a/etc/config.xml
+++ b/etc/config.xml
@@ -17,6 +17,7 @@
                 <serverside_enabled>0</serverside_enabled>
                 <serverside_gtm_url/>
                 <order_states_for_purchase_event>new,payment_review,pending_payment,holded,processing,complete</order_states_for_purchase_event>
+                <max_transaction_value>0</max_transaction_value>
             </settings>
         </googletagmanager2>
     </default>