Merge pull request PrestaShop#35902 from boherm/PrestaShop#35888-fix-…

…min-qty-in-front

controllers/front/ProductController.php

@@ -510,6 +510,11 @@ public function displayAjaxRefresh()
         $product = $this->getTemplateVarProduct();
         $minimalProductQuantity = $this->getProductMinimalQuantity($product);
 
+        // If the product is already in the cart, we can set the minimal quantity to 1
+        if ($product['cart_quantity'] >= $minimalProductQuantity) {
+            $minimalProductQuantity = 1;
+        }
+
         ob_end_clean();
         header('Content-Type: application/json');
         $this->ajaxRender(json_encode([
@@ -1199,6 +1204,7 @@ public function getTemplateVarProduct()
         $product['new'] = (int) $this->product->new;
         $product['id_product_attribute'] = $this->getIdProductAttributeByGroupOrRequestOrDefault();
         $product['minimal_quantity'] = $this->getProductMinimalQuantity($product);
+        $product['cart_quantity'] = $this->context->cart->getProductQuantity($product['id_product'], $product['id_product_attribute'])['quantity'];
         $product['quantity_wanted'] = $this->getRequiredQuantity($product);
         $product['extraContent'] = $extraContentFinder->addParams(['product' => $this->product])->present();
         $product['ecotax_tax_inc'] = $this->product->getEcotax(null, true, true);
@@ -1320,6 +1326,10 @@ protected function getRequiredQuantity($product)
             $requiredQuantity = $product['minimal_quantity'];
         }
 
+        if ($product['cart_quantity'] >= $requiredQuantity) {
+            return 0;
+        }
+
         return $requiredQuantity;
     }