fix(phpstan): price calculation, logging, and file handling improvements

In this commit, several enhancements are made in the ajax price calculation PHP files including
more verbose error logging and minor refactoring of the calculation itself. Instead of adding an
error message in QUI, we now add detailed error handling using QUI\System\Log.

Additionally, we have improved file handling in `ajax/output/sendMail.php` by ensuring the file is
an instance of `QUI\Projects\Media\File` or `QUI\Projects\Media\Image` before attaching it.

Lastly, we added an option for parsing in method getCustomerFiles of the ErpEntityInterface. This
commit will make the scripts more efficient and robust against errors.

ajax/calcBruttoPrice.php

@@ -7,6 +7,7 @@
 use QUI\ERP\Tax\TaxEntry;
 use QUI\ERP\Tax\TaxType;
 use QUI\ERP\Tax\Utils as TaxUtils;
+use QUI\System\Log;
 
 /**
  * Calculate the netto price
@@ -20,18 +21,22 @@
 QUI::$Ajax->registerFunction(
     'package_quiqqer_erp_ajax_calcBruttoPrice',
     function ($price, $formatted, $vat) {
-        $price    = QUI\ERP\Money\Price::validatePrice($price);
+        $price = QUI\ERP\Money\Price::validatePrice($price);
         $Currency = QUI\ERP\Defaults::getCurrency();
 
         if (empty($vat)) {
-            $Area    = QUI\ERP\Defaults::getArea();
-            $TaxType = TaxUtils::getTaxTypeByArea($Area);
+            $Area = QUI\ERP\Defaults::getArea();
 
-            if ($TaxType instanceof TaxType) {
+            try {
+                $TaxType = TaxUtils::getTaxTypeByArea($Area);
                 $TaxEntry = TaxUtils::getTaxEntry($TaxType, $Area);
-            } elseif ($TaxType instanceof TaxEntry) {
-                $TaxEntry = $TaxType;
-            } else {
+            } catch (QUI\Exception $e) {
+                Log::addError($e->getMessage(), [
+                    'ajax' => 'package_quiqqer_erp_ajax_calcBruttoPrice',
+                    'price' => $price,
+                    'vat' => $vat
+                ]);
+
                 if (isset($formatted) && $formatted) {
                     return $Currency->format($price);
                 }

ajax/calcNettoPrice.php

@@ -7,6 +7,7 @@
 use QUI\ERP\Tax\TaxEntry;
 use QUI\ERP\Tax\TaxType;
 use QUI\ERP\Tax\Utils as TaxUtils;
+use QUI\System\Log;
 
 /**
  * Calculate the netto price
@@ -35,21 +36,15 @@ function ($price, $formatted, $vat) {
 
             try {
                 $TaxType = TaxUtils::getTaxTypeByArea($Area);
+                $TaxEntry = TaxUtils::getTaxEntry($TaxType, $Area);
             } catch (QUI\Exception $Exception) {
-                QUI::getMessagesHandler()->addError($Exception->getMessage());
-
-                if (isset($formatted) && $formatted) {
-                    return QUI\ERP\Defaults::getCurrency()->format($price);
-                }
+                Log::addError($Exception->getMessage(), [
+                    'price' => $price,
+                    'formatted' => $formatted,
+                    'vat' => $vat,
+                    'ajax' => 'package_quiqqer_erp_ajax_calcNettoPrice'
+                ]);
 
-                return $price;
-            }
-
-            if ($TaxType instanceof TaxType) {
-                $TaxEntry = TaxUtils::getTaxEntry($TaxType, $Area);
-            } elseif ($TaxType instanceof TaxEntry) {
-                $TaxEntry = $TaxType;
-            } else {
                 if (isset($formatted) && $formatted) {
                     return QUI\ERP\Defaults::getCurrency()->format($price);
                 }
@@ -68,7 +63,7 @@ function ($price, $formatted, $vat) {
         $precision = QUI\ERP\Defaults::getPrecision();
         $bruttoInput = round($price, $precision);
 
-        $decimalParts = explode('.', $bruttoInput);
+        $decimalParts = explode('.', (string)$bruttoInput);
         $inputPrecision = isset($decimalParts[1]) ? strlen($decimalParts[1]) : 0;
 
         $brutto = round($netto, $precision) * $vat;
@@ -80,7 +75,7 @@ function ($price, $formatted, $vat) {
 
             if ($brutto != $bruttoInput) {
                 for ($i = 0; $i < 10; $i++) {
-                    $nettoCheck = substr($netto, 0, -$precision);
+                    $nettoCheck = (float)substr((string)$netto, 0, -$precision);
                     $bruttoCheck = round($nettoCheck * $vat, $inputPrecision);
 
                     if ($bruttoCheck == $bruttoInput) {

ajax/customerFiles/getFiles.php

@@ -16,6 +16,7 @@
     'package_quiqqer_erp_ajax_customerFiles_getFiles',
     function ($hash) {
         $Entity = (new Processes())->getEntity($hash);
+
         return $Entity->getCustomerFiles(true);
     },
     ['hash']

ajax/output/sendMail.php

@@ -64,7 +64,11 @@ function (
                         }
 
                         try {
-                            $attachedMediaFiles[] = $Media->get((int)$fileId);
+                            $File = $Media->get((int)$fileId);
+
+                            if ($File instanceof QUI\Projects\Media\File || $File instanceof QUI\Projects\Media\Image) {
+                                $attachedMediaFiles[] = $File;
+                            }
                         } catch (Exception $Exception) {
                             QUI\System\Log::writeException($Exception);
                         }

src/QUI/ERP/ErpEntityInterface.php

@@ -117,5 +117,5 @@ public function addCustomerFile(string $fileHash, array $options = []): void;
 
     public function clearCustomerFiles(): void;
 
-    public function getCustomerFiles(): array;
+    public function getCustomerFiles(bool $parsing = false): array;
 }