public async Task <IActionResult> UpdateAsync(Guid id, DeckUpdateModel deckUpdateModel)
{
var deck = await decksService.FindAsync(id);
if (deck == null)
{
return(NotFound(id));
}
var userId = HttpContext.User.GetUserId();
var cards = deckUpdateModel.Cards ?? new List <CardUpdateModel>();
foreach (var card in cards.Where(card => card.Id.HasValue))
{
await cardsService.UpdateOrDoNothingAsync(userId, card.Id.Value, card.Question, card.Answer);
}
var newCards = await Task.WhenAll(cards.Where(card => card.Id == null)
.Select(newCard => cardsService.CreateAsync(userId, newCard.Question, newCard.Answer)));
deck = await decksService.GetAsync(id);
if (deckUpdateModel.Name != null)
{
deck.Name = deckUpdateModel.Name;
}
deck.CardsIds.AddRange(newCards.Select(card => card.Id));
deck.CardsIds.RemoveAll(cardId => deckUpdateModel.DeleteCards?.Contains(cardId) ?? false);
return(Ok(await decksService.UpdateAsync(deck.Id, deck)));
}
