private void ProcessTakeProducts()
{
while (!Buyer.ShoppingList.IsCompleted)
{
var shelf = _shelfSelectionAlgorithm.PickUp(Supermarket, Buyer.ShoppingList);
_manualResetEvent.Reset();
Supermarket.ToGetInLineToShelf(shelf.Id, Buyer.Id, this);
_manualResetEvent.WaitOne();
var products = Supermarket.TakeProductsFromShelf(shelf.Id, Buyer.Id, Buyer.ShoppingList.GetProductsCount(shelf.ProductSpecification), this);
Buyer.AddToBasket(products);
Buyer.CompletePosition(shelf.ProductSpecification);
}
}