public IList <Card> AddCards(IList <Card> cards, int userId)
{
if (cards == null || !cards.Any())
{
throw new ArgumentNullException("Invalid cards");
}
if (IsAnAdmin(userId))
{
if (CardAlreadyExist(cards))
{
throw new InvalidOperationException("Duplicate cards are not allowed to be added");
}
foreach (var card in cards)
{
card.LinkToCatalog(Id);
}
var addedCards = _catalogRepository.AddCards(cards);
addedCards.ToList().ForEach(d => _cardEventHandler.Raise(new CardLinkedEvent(Id, d.Id, d.Version)));
return(cards);
}
return(null);
}
