public void ToGetInLineToCashbox(Guid cashboxId, Guid buyerId, IQueuedObjectSubscriber subscriber)
{
if (subscriber == null)
{
throw new ArgumentNullException(nameof(subscriber));
}
if (!_buyers.TryGetValue(buyerId, out var buyer))
{
throw new BuyerIsNotInSupermarketException();
}
var queuedCashbox = _queuedCashboxes.FirstOrDefault(s => s.Object.Id == cashboxId);
if (queuedCashbox == null)
{
throw new WorkerObjectNotFoundException();
}
queuedCashbox.Availabled += subscriber.OnQueuedObjectAvailabled;
queuedCashbox.ToGetInLine(buyer);
}
public Receipt BuyProducts(Guid cashboxId, Guid buyerId, IQueuedObjectSubscriber subscriber)
{
if (subscriber == null)
{
throw new ArgumentNullException(nameof(subscriber));
}
if (!_buyers.TryGetValue(buyerId, out var buyer))
{
throw new BuyerIsNotInSupermarketException();
}
var queuedCashbox = _queuedCashboxes.FirstOrDefault(c => c.Object.Id == cashboxId);
if (queuedCashbox == null)
{
throw new WorkerObjectNotFoundException();
}
queuedCashbox.Availabled -= subscriber.OnQueuedObjectAvailabled;
return(queuedCashbox.MakePurchases(buyerId));
}
public IReadOnlyCollection <Product> TakeProductsFromShelf(Guid shelfId, Guid buyerId, int count, IQueuedObjectSubscriber subscriber)
{
if (subscriber == null)
{
throw new ArgumentNullException(nameof(subscriber));
}
if (!_buyers.TryGetValue(buyerId, out _))
{
throw new BuyerIsNotInSupermarketException();
}
var queuedShelf = _queuedShelves.FirstOrDefault(s => s.Object.Id == shelfId);
if (queuedShelf == null)
{
throw new WorkerObjectNotFoundException();
}
queuedShelf.Availabled -= subscriber.OnQueuedObjectAvailabled;
return(queuedShelf.TakeAnyProducts(buyerId, count));
}
