fix: consider empty invoice address + added new orderprocess step event api

src/QUI/ERP/Order/Controls/OrderProcess/Checkout.html

@@ -16,6 +16,7 @@ Order=$Order
     </div>
 
 
+    {if $InvoiceAddress}
     <div class="quiqqer-order-step-checkout-invoiceAddress">
         <h2>{locale group="quiqqer/order" var="ordering.step.checkout.billing.address"}</h2>
         {$InvoiceAddress->render(['tel' => false, 'mail' => false])}
@@ -32,6 +33,7 @@ Order=$Order
         {$DeliveryAddress->render(['tel' => false, 'mail' => false])}
     </div>
     {/if}
+    {/if}
 
     {if $comment}
     <div class="quiqqer-order-step-checkout-customerData-comment">

src/QUI/ERP/Order/Controls/OrderProcess/Checkout.php

@@ -124,9 +124,24 @@ public function getBody(): string
 
         $comment = trim($comment);
 
+
+        // invoice address
+        $InvoiceAddress = $Order->getInvoiceAddress();
+
+        if (
+            $InvoiceAddress->getName() === ''
+            && $InvoiceAddress->getPhone() === ''
+            && $InvoiceAddress->getAttribute('street_no') === false
+            && $InvoiceAddress->getAttribute('zip') === false
+            && $InvoiceAddress->getAttribute('city') === false
+            && $InvoiceAddress->getAttribute('country') === false
+        ) {
+            $InvoiceAddress = null;
+        }
+
         $Engine->assign([
             'User' => $Order->getCustomer(),
-            'InvoiceAddress' => $Order->getInvoiceAddress(),
+            'InvoiceAddress' => $InvoiceAddress,
             'DeliveryAddress' => $Order->getDeliveryAddress(),
             'Payment' => $Order->getPayment(),
             'Shipping' => $Order->getShipping(),

src/QUI/ERP/Order/OrderProcess.php

@@ -1400,6 +1400,8 @@ protected function parseSteps(): OrderProcessSteps
         $Order = $this->getOrder();
         $Basket = $this->Basket;
 
+        QUI::getEvents()->fireEvent('onQuiqqerOrderProcessStepsBegin', [$this, $Order, $Steps]);
+
         if (QUI::getUsers()->isNobodyUser(QUI::getUserBySession())) {
             $Steps->append(
                 new Controls\OrderProcess\Registration([
@@ -1409,6 +1411,8 @@ protected function parseSteps(): OrderProcessSteps
                 ])
             );
 
+            QUI::getEvents()->fireEvent('onQuiqqerOrderProcessStepsEnd', [$this, $Order, $Steps]);
+
             return $Steps;
         }
 
@@ -1424,14 +1428,18 @@ protected function parseSteps(): OrderProcessSteps
 
             $Steps->append($Finish);
 
+            QUI::getEvents()->fireEvent('onQuiqqerOrderProcessStepsEnd', [$this, $Order, $Steps]);
+
             return $Steps;
         }
 
+        /*
         $Registration = new Controls\OrderProcess\Registration([
             'Basket' => $Basket,
             'Order' => $Order,
             'priority' => 1
         ]);
+        */
 
         $Basket = new Controls\OrderProcess\Basket([
             'Basket' => $Basket,
@@ -1475,6 +1483,9 @@ protected function parseSteps(): OrderProcessSteps
 
         $this->sortSteps($Steps);
 
+
+        QUI::getEvents()->fireEvent('onQuiqqerOrderProcessStepsEnd', [$this, $Order, $Steps]);
+
         return $Steps;
     }