Moved VAT include info from pricedetail to orderdetail level

That makes implementing the form easier

src/Services/InfoProviderSystem/DTOs/PriceDTO.php

@@ -39,7 +39,9 @@ readonly class PriceDTO
         public string $price,
         /** @var string The currency of the used ISO code of this price detail */
         public ?string $currency_iso_code,
-        /** @var bool If the price includes tax */
+        /** @var bool If the price includes tax
+         * @deprecated Use the prices_include_vat property of the PurchaseInfoDTO instead, as this property is not reliable if there are multiple prices with different values for includes_tax
+         */
         public ?bool $includes_tax = true,
         /** @var float the price related quantity */
         public ?float $price_related_quantity = 1.0,

src/Services/InfoProviderSystem/DTOs/PurchaseInfoDTO.php

@@ -29,6 +29,9 @@ namespace App\Services\InfoProviderSystem\DTOs;
  */
 readonly class PurchaseInfoDTO
 {
+    /** @var bool|null If the prices contain VAT or not. Null if state is unknown. */
+    public ?bool $prices_include_vat;
+
     public function __construct(
         public string $distributor_name,
         public string $order_number,
@@ -36,6 +39,7 @@ readonly class PurchaseInfoDTO
         public array $prices,
         /** @var string|null An url to the product page of the vendor */
         public ?string $product_url = null,
+        ?bool $prices_include_vat = null,
     )
     {
         //Ensure that the prices are PriceDTO instances
@@ -44,5 +48,17 @@ readonly class PurchaseInfoDTO
                 throw new \InvalidArgumentException('The prices array must only contain PriceDTO instances');
             }
         }
+
+        //If no prices_include_vat information is given, try to deduct it from the prices
+        if ($prices_include_vat === null) {
+            $vatValues = array_unique(array_map(fn(PriceDTO $price) => $price->includes_tax, $this->prices));
+            if (count($vatValues) === 1) {
+                $this->prices_include_vat = $vatValues[0]; //Use the value of the prices if they are all the same
+            } else {
+                $this->prices_include_vat = null; //If there are different values for the prices, we cannot determine if the prices include VAT or not
+            }
+        } else {
+            $this->prices_include_vat = $prices_include_vat;
+        }
     }
 }

src/Services/InfoProviderSystem/DTOtoEntityConverter.php

@@ -100,8 +100,6 @@ final class DTOtoEntityConverter
             $entity->setCurrency(null);
         }
 
-        $entity->setIncludesVat($dto->includes_tax);
-
         return $entity;
     }
 
@@ -118,6 +116,8 @@ final class DTOtoEntityConverter
             $entity->addPricedetail($this->convertPrice($price));
         }
 
+        $entity->setPricesIncludesVAT($dto->prices_include_vat);
+
         return $entity;
     }