From af498b3d870d5fc0b13360d2b23101a21ffccdd9 Mon Sep 17 00:00:00 2001
From: Josh Angell <josh@angell.io>
Date: Thu, 11 Mar 2021 13:08:04 +0000
Subject: [PATCH 1/2] Added logic to send the correct tax element on order
 level discounts.

---
 src/controllers/SettingsController.php | 14 +++++++++++++-
 src/models/Settings.php                | 10 ++++++++++
 src/services/Orders.php                | 11 ++++++++---
 3 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/src/controllers/SettingsController.php b/src/controllers/SettingsController.php
index bd1bfab..53587fa 100644
--- a/src/controllers/SettingsController.php
+++ b/src/controllers/SettingsController.php
@@ -257,6 +257,18 @@ public function actionSave(): Response
         $settings->vend_discountProductId = $request->getBodyParam('vend_discountProductId') ?? $settings->vend_discountProductId;
         $settings->vend_noTaxId = $request->getBodyParam('vend_noTaxId') ?? $settings->vend_noTaxId;
 
+        // If we have a discount product (which we should) then we need to fetch the tax info
+        if ($settings->vend_discountProductId) {
+
+            // Get the discount product from the API again
+            $discountProductResponse = Vend::$plugin->api->getResponse('products/'.$settings->vend_discountProductId);
+            if ($discountProductResponse && isset($discountProductResponse['products'])) {
+                $discountProduct = $discountProductResponse['products'][0];
+                $settings->vend_discountTaxId = $discountProduct['tax_id'];
+                $settings->vend_discountTaxRate = $discountProduct['tax_rate'];
+            }
+        }
+
         if (!$settings->validate()) {
             Craft::$app->getSession()->setError(Craft::t('vend', 'Couldn’t save settings.'));
             return $this->renderTemplate('vend/settings/general', compact('settings'));
@@ -583,4 +595,4 @@ public function actionFeedMe(): Response
         return $this->renderTemplate('vend/settings/feedme', $variables);
     }
 
-}
\ No newline at end of file
+}
diff --git a/src/models/Settings.php b/src/models/Settings.php
index fb6dbcc..aef2def 100644
--- a/src/models/Settings.php
+++ b/src/models/Settings.php
@@ -67,6 +67,16 @@ class Settings extends Model
      */
     public $vend_discountProductId;
 
+    /**
+     * @var string
+     */
+    public $vend_discountTaxId;
+
+    /**
+     * @var string
+     */
+    public $vend_discountTaxRate;
+
     /**
      * @var string
      */
diff --git a/src/services/Orders.php b/src/services/Orders.php
index 67c51c0..cecd17a 100644
--- a/src/services/Orders.php
+++ b/src/services/Orders.php
@@ -317,13 +317,18 @@ public function registerSale(int $orderId) {
         $totalDiscount = abs($order->getTotalDiscount());
         $orderDiscount = $totalDiscount - $totalLineItemsDiscount;
         if ($orderDiscount > 0) {
+
+            // Process the special discount product tax rate
+            $orderDiscountTaxAmount = bcmul($orderDiscount, $settings->vend_discountTaxRate, 5);
+            $orderDiscountWithoutTax = bcsub($orderDiscount, $orderDiscountTaxAmount, 5);
+
             $data['register_sale_products'][] = [
                 'product_id' => $settings->vend_discountProductId,
                 'quantity' => -1,
-                'price' => $orderDiscount,
+                'price' => $orderDiscountWithoutTax,
                 'price_set' => 1,
-                'tax' => 0,
-                'tax_id' => $settings->vend_noTaxId
+                'tax' => $orderDiscountTaxAmount,
+                'tax_id' => $settings->vend_discountTaxId
             ];
         }
 

From 8437e407ec35ea1ef2c83779871166dc755dfbf7 Mon Sep 17 00:00:00 2001
From: Josh Angell <josh@angell.io>
Date: Thu, 11 Mar 2021 13:08:59 +0000
Subject: [PATCH 2/2] Changelog

---
 CHANGELOG.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8df4da7..fb86d54 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,11 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 
 ## Unreleased
 
+## 2.5.6 - 2021-03-11
+
+### Fixed
+- Fixed an issue where order level discounts weren’t showing the tax inside them
+
 ## 2.5.5 - 2021-01-05
 
 ### Fixed