Unhiding hidden categories in the event manage view @see #1126 (#1138)

Author: Viburnum

backend/app/Services/Application/Handlers/Product/GetProductsHandler.php

@@ -28,6 +28,7 @@ public function handle(int $eventId, QueryParamsDTO $queryParamsDTO): LengthAwar
         $filteredProducts = $this->productFilterService->filter(
             productsCategories: $productPaginator->getCollection(),
             hideSoldOutProducts: false,
+            hideHiddenCategories: false,
         );
 
         $productPaginator->setCollection($filteredProducts);

backend/app/Services/Application/Handlers/ProductCategory/GetProductCategoriesHandler.php

@@ -51,6 +51,7 @@ public function handle(int $eventId): Collection
         return $this->productFilterService->filter(
             productsCategories: $categories,
             hideSoldOutProducts: false,
+            hideHiddenCategories: false,
         );
     }
 }

backend/app/Services/Domain/Product/ProductFilterService.php

@@ -41,12 +41,14 @@ public function __construct(
      * @param Collection<ProductCategoryDomainObject> $productsCategories
      * @param PromoCodeDomainObject|null $promoCode
      * @param bool $hideSoldOutProducts
+     * @param bool $hideHiddenCategories
      * @return Collection<ProductCategoryDomainObject>
      */
     public function filter(
         Collection             $productsCategories,
         ?PromoCodeDomainObject $promoCode = null,
         bool                   $hideSoldOutProducts = true,
+        bool                   $hideHiddenCategories = true,
     ): Collection
     {
         if ($productsCategories->isEmpty()) {
@@ -57,8 +59,9 @@ public function filter(
             ->flatMap(fn(ProductCategoryDomainObject $category) => $category->getProducts());
 
         if ($products->isEmpty()) {
-            return $productsCategories
-                ->reject(fn(ProductCategoryDomainObject $category) => $category->getIsHidden());
+            return $hideHiddenCategories
+                ? $productsCategories->reject(fn(ProductCategoryDomainObject $category) => $category->getIsHidden())
+                : $productsCategories;
         }
 
         $eventId = $products->first()->getEventId();
@@ -73,8 +76,11 @@ public function filter(
             ->reject(fn(ProductDomainObject $product) => $this->filterProduct($product, $promoCode, $hideSoldOutProducts))
             ->each(fn(ProductDomainObject $product) => $this->processProductPrices($product, $hideSoldOutProducts));
 
-        return $productsCategories
-            ->reject(fn(ProductCategoryDomainObject $category) => $category->getIsHidden())
+        $filteredCategories = $hideHiddenCategories
+            ? $productsCategories->reject(fn(ProductCategoryDomainObject $category) => $category->getIsHidden())
+            : $productsCategories;
+
+        return $filteredCategories
             ->each(fn(ProductCategoryDomainObject $category) => $category->setProducts(
                 $filteredProducts->where(
                     static fn(ProductDomainObject $product) => $product->getProductCategoryId() === $category->getId()