public OrderingMediator(IAttendant attendant, IStorageService storage)
{
_attendant = attendant;
_storage = storage;
_attendant.OnOrderOpened += (sender, e) => _storage.AddOrderEvent(OrderAction.Open, e.Order);
_attendant.OnOrderCompleted += (sender, e) => _storage.AddOrderEvent(OrderAction.Complete, e.Order);
_attendant.OnIncomePayment += (sender, e) => _storage.AddOrderEvent(_attendant.Order.Number, OrderAction.MoneyIncome, e);
_attendant.OnMoneyAcceptanceIsOver += (sender, e) => _storage.AddOrderEvent(_attendant.Order.Number, OrderAction.MoneyAccepted, e);;
_attendant.OnSlipPrinted += (sender, e) => _storage.AddOrderEvent(e.Order, OrderAction.PrintSlip, e);
}
