public async Task <int> CloneProductAsync(int productId, string newSku, string newName)
{
var productInOneLevel = await GetFirstOrDefaultAsync(productId);
if (productInOneLevel == null)
{
throw new Exception("Product not found!!!");
}
var newProduct = ProductFactory.CreateNewProductFromExistedProduct(productInOneLevel, newSku, newName, false);
ProductFactory.AddFeatures(await GetFirstOrDefaultWithIncludesAsync(productId), ref newProduct);
_context.Product.Add(newProduct);
await _context.SaveChangesAsync();
return(newProduct.Id);
}