From 580e86605c6766d682e94579d7e2b52179024e0b Mon Sep 17 00:00:00 2001
From: Jasper Briers <jasper@compubel.be>
Date: Thu, 25 Sep 2025 13:16:27 +0200
Subject: [PATCH] Improve LegalMonetaryTotal

cbc:AllowanceTotalAmount and cbc:ChargeTotalAmount shouldn't be required.
---
 src/LegalMonetaryTotal.php | 42 +++++++++++++++++++++++---------------
 1 file changed, 25 insertions(+), 17 deletions(-)

diff --git a/src/LegalMonetaryTotal.php b/src/LegalMonetaryTotal.php
index 0baecd8..4abcd76 100644
--- a/src/LegalMonetaryTotal.php
+++ b/src/LegalMonetaryTotal.php
@@ -14,8 +14,8 @@ class LegalMonetaryTotal implements XmlSerializable, XmlDeserializable
     private $lineExtensionAmount = 0;
     private $taxExclusiveAmount = 0;
     private $taxInclusiveAmount = 0;
-    private $allowanceTotalAmount = 0;
-    private $chargeTotalAmount = 0;
+    private $allowanceTotalAmount;
+    private $chargeTotalAmount;
     private $prepaidAmount;
     private $payableAmount = 0;
     private $payableRoundingAmount;
@@ -193,24 +193,32 @@ public function xmlSerialize(Writer $writer): void
                     'currencyID' => Generator::$currencyID
                 ]
 
-            ],
-            [
-                'name'       => Schema::CBC . 'AllowanceTotalAmount',
-                'value'      => NumberFormatter::format($this->allowanceTotalAmount,2),
-                'attributes' => [
-                    'currencyID' => Generator::$currencyID
-                ]
+            ]
+        ]);
 
-            ],
-            [
-                'name'       => Schema::CBC . 'ChargeTotalAmount',
-                'value'      => NumberFormatter::format($this->chargeTotalAmount, 2),
-                'attributes' => [
-                    'currencyID' => Generator::$currencyID
+        if ($this->allowanceTotalAmount !== null) {
+            $writer->write([
+                [
+                    'name'       => Schema::CBC . 'AllowanceTotalAmount',
+                    'value'      => NumberFormatter::format($this->allowanceTotalAmount, 2),
+                    'attributes' => [
+                        'currencyID' => Generator::$currencyID
+                    ]
                 ]
+            ]);
+        }
 
-            ]
-        ]);
+        if ($this->chargeTotalAmount !== null) {
+            $writer->write([
+                [
+                    'name'       => Schema::CBC . 'ChargeTotalAmount',
+                    'value'      => NumberFormatter::format($this->chargeTotalAmount, 2),
+                    'attributes' => [
+                        'currencyID' => Generator::$currencyID
+                    ]
+                ]
+            ]);
+        }
 
         if ($this->prepaidAmount !== null) {
             $writer->write([