Merge branch 'WP-188' into 'main'

fix: type of vat sum and ignore set vat to product if tax is null

See merge request ecommerce_modules/cms/wordpress/wordpress!77

Author: DEMAxx

src/Actions/OrderCreateAction.php

@@ -364,9 +364,11 @@ private function buildItemData(
                                 $shouldConvert,
                             );
 
-                        if($taxCost > 0){
-                            $payment['vat_sum'] = (int)(($shouldPay / 100) * $taxCost);
-                            $payment['vat_rate'] = Tax::getTax($product->get_tax_class());
+                        $tax = Tax::getTax($product->get_tax_class());
+
+                        if($taxCost > 0 && $tax !== null){
+                            $payment['vat_sum'] = (float)(($shouldPay / 100) * $taxCost);
+                            $payment['vat_rate'] = $tax;
                         }else{
                             $payment['vat_sum'] = 0;
                             $payment['vat_rate'] = 0;