feat: infinity scroll, load more, resore scroll

module/oc_telegram_shop/upload/oc_telegram_shop/src/Handlers/ProductsHandler.php

@@ -13,6 +13,7 @@ use Openguru\OpenCartFramework\ImageTool\ImageToolInterface;
 use Openguru\OpenCartFramework\QueryBuilder\Builder;
 use Openguru\OpenCartFramework\QueryBuilder\JoinClause;
 use Openguru\OpenCartFramework\Support\Arr;
+use Openguru\OpenCartFramework\Support\PaginationHelper;
 
 class ProductsHandler
 {
@@ -43,7 +44,7 @@ class ProductsHandler
     {
         $languageId = 1;
         $page = $request->get('page', 1);
-        $perPage = $request->get('perPage', 10);
+        $perPage = 10;
         $categoryId = (int) $request->get('categoryId', 0);
         $categoryName = '';
 
@@ -59,7 +60,7 @@ class ProductsHandler
                 ->value('name');
         }
 
-        $products = $this->queryBuilder->newQuery()
+        $productsQuery = $this->queryBuilder->newQuery()
             ->select([
                 'products.product_id' => 'product_id',
                 'products.quantity' => 'product_quantity',
@@ -84,7 +85,13 @@ class ProductsHandler
                             ->where('product_to_category.category_id', '=', $categoryId);
                     }
                 );
-            })
+            });
+
+        $total = $productsQuery->count();
+        $lastPage = PaginationHelper::calculateLastPage($total, $perPage);
+        $hasMore = $page + 1 <= $lastPage;
+
+        $products = $productsQuery
             ->forPage($page, $perPage)
             ->orderBy('date_added', 'DESC')
             ->get();
@@ -152,6 +159,7 @@ class ProductsHandler
 
             'meta' => [
                 'currentCategoryName' => $categoryName,
+                'hasMore' => $hasMore,
             ]
         ]);
     }