public async Task <bool> CopyDeckAsync(Guid userId, Guid deckId)
{
var deck = await deckRepository.FindByIdAsync(deckId);
if (deck == null)
{
return(false);
}
var newDeck = new DeckEntity(userId, deck.Title);
var result = await deckRepository.InsertAsync(newDeck);
var cards = await cardRepository.GetCardsByDeckAsync(deck.Id);
if (result == null || cards == null)
{
return(false);
}
var tasks = cards.Select(c => Task.Run(() =>
cardRepository.InsertAsync(new CardEntity(result.Id, c.Question, c.Answer))
));
var results = await Task.WhenAll(tasks);
return(results.All(c => c != null));
}
public static async Task <bool> IsUsersDeckAsync(this IDeckRepository repository, Guid deckId, Guid userId)
{
var deck = await repository.FindByIdAsync(deckId).ConfigureAwait(false);
return(deck != null && deck.UserId == userId);
}
