public void AddToCard(string userId, int productId, int quantity)
{
var card = _cardDal.GetCardByUserId(userId);
if (card != null)
{
var index = card.CardItems.FindIndex(x => x.ProductId == productId);
if (index < 0)
{
card.CardItems.Add(new CardItem()
{
ProductId = productId,
Quantity = quantity,
CardId = card.Id,
});
}
else
{
card.CardItems[index].Quantity += quantity;
}
_cardDal.Update(card);
}
}
