fix: error checking id exists

internal/modules/inventory/adjustments/services/adjustment.service.go

@@ -739,25 +739,26 @@ func (s *adjustmentService) AdjustmentHistory(c *fiber.Ctx, query *validation.Qu
 	}
 	offset := (query.Page - 1) * query.Limit
 
-	var isProductsExist bool
-	isWarehousesExist, err := s.WarehouseRepo.IdExists(c.Context(), uint(query.WarehouseID))
-
+	if query.WarehouseID > 0 {
+		isWarehouseExist, err := s.WarehouseRepo.IdExists(c.Context(), query.WarehouseID)
 		if err != nil {
 			return nil, 0, fiber.NewError(fiber.StatusInternalServerError, "Failed to validate warehouse")
 		}
-	if query.WarehouseID > 0 && !isWarehousesExist {
+		if !isWarehouseExist {
 			return nil, 0, fiber.NewError(fiber.StatusNotFound, "Warehouse not found")
 		}
+	}
 
-	isProductsExist, err = s.ProductRepo.IdExists(c.Context(), uint(query.ProductID))
-
+	if query.ProductID > 0 {
+		isProductExist, err := s.ProductRepo.IdExists(c.Context(), query.ProductID)
 		if err != nil {
 			s.Log.Errorf("Failed to check product existence: %+v", err)
 			return nil, 0, fiber.NewError(fiber.StatusInternalServerError, "Failed to validate product")
 		}
-	if query.ProductID > 0 && !isProductsExist {
+		if !isProductExist {
 			return nil, 0, fiber.NewError(fiber.StatusNotFound, "Product not found")
 		}
+	}
 
 	scope, scopeErr := m.ResolveLocationScope(c, s.AdjustmentStockRepository.DB())
 	if scopeErr != nil {