public async Task <bool> AddCardToCollectionAsync(Guid collectionId, Guid cardId, Guid userId)
{
if (collectionId == Guid.Empty)
{
throw new AppException($"Поле {nameof(collectionId)} не указано");
}
if (cardId == Guid.Empty)
{
throw new AppException($"Поле {nameof(cardId)} не указано");
}
if (userId == Guid.Empty)
{
throw new AppException($"Поле {nameof(userId)} не указано");
}
var desiredCollection = await repository.FindByIdAsync(collectionId, userId);
if (desiredCollection.CardItems.Contains(cardId))
{
throw new AppException("В коллекции нет даной карты");
}
desiredCollection.CardItems.Add(cardId);
try
{
await repository.UpdateAsync(desiredCollection);
}
catch
{
return(false);
}
return(true);
}
