public async Task <bool> HandleAsync(AddItemToShoppingListCommand command, CancellationToken cancellationToken)
{
if (command == null)
{
throw new ArgumentNullException(nameof(command));
}
var list = await shoppingListRepository.FindByAsync(command.ShoppingListId, cancellationToken);
if (list == null)
{
throw new DomainException(new ShoppingListNotFoundReason(command.ShoppingListId));
}
cancellationToken.ThrowIfCancellationRequested();
if (command.ItemId.IsActualId)
{
var actualId = new ItemId(command.ItemId.ActualId.Value);
await addItemToShoppingListService.AddItemToShoppingList(list, actualId, command.SectionId, command.Quantity,
cancellationToken);
}
else
{
var temporaryId = new TemporaryItemId(command.ItemId.OfflineId.Value);
await addItemToShoppingListService.AddItemToShoppingList(list, temporaryId, command.SectionId,
command.Quantity, cancellationToken);
}
cancellationToken.ThrowIfCancellationRequested();
await shoppingListRepository.StoreAsync(list, cancellationToken);
return(true);
}
public async Task ExchangeItemAsync(ItemId oldItemId, IStoreItem newItem, CancellationToken cancellationToken)
{
if (oldItemId is null)
{
throw new System.ArgumentNullException(nameof(oldItemId));
}
if (newItem is null)
{
throw new System.ArgumentNullException(nameof(newItem));
}
var shoppingListsWithOldItem = (await shoppingListRepository
.FindActiveByAsync(oldItemId, cancellationToken))
.ToList();
foreach (var list in shoppingListsWithOldItem)
{
IShoppingListItem oldListItem = list.Items
.First(i => i.Id == oldItemId);
list.RemoveItem(oldListItem.Id);
if (newItem.IsAvailableInStore(list.StoreId))
{
var sectionId = newItem.GetDefaultSectionIdForStore(list.StoreId);
await addItemToShoppingListService.AddItemToShoppingList(list, newItem.Id, sectionId,
oldListItem.Quantity, cancellationToken);
if (oldListItem.IsInBasket)
{
list.PutItemInBasket(newItem.Id);
}
}
await shoppingListRepository.StoreAsync(list, cancellationToken);
}
}