Пример #1
0
 public bool Initialize(string vipno = null)
 {
     lock (_locker)
     {
         if (Wrapper.User == null)
         {
             return(Initialized = false);
         }
         ActivityLogService.Logger.LogFunctionCall();
         try
         {
             _vipno         = vipno;
             _previousSales = new List <SaleDiscount>();
             _shoppingBag   = new List <ShoppingItem>();
             SaleDiscount.ResetCounter();
             EngineRestarted?.Invoke();
             return(Initialized = true);
         }
         catch (Exception ex)
         {
             ActivityLogService.Logger.LogError(ex);
             return(Initialized = false);
         }
     }
 }
Пример #2
0
        private void evaluateChanges(List <SaleDiscount> newSales)
        {
            var previousSales = _previousSales;

            _previousSales = newSales;
            for (int i = 0; i < newSales.Count; i++)
            {
                SaleDiscount sd      = newSales[i];
                var          removed = previousSales.FindAll(s => s == sd);
                if (removed.Count == 0)
                {
                    sd.SetID();
                    SaleApplied?.Invoke(sd);
                }
                else if (removed.Count != 1)
                {
                    //### multiple equal sales
                }
                else // (removed.Count == 1)
                {
                    sd.SetID(removed[0].ID);
                    previousSales.RemoveAll(s => s == sd);
                }
            }
            for (int i = 0; i < previousSales.Count; i++)
            {
                SaleDiscount sd = previousSales[i];
                SaleCancelled?.Invoke(sd.ID);
            }
        }
Пример #3
0
 internal bool Add(SaleDiscount sd)
 {
     if (Title == sd.Title && Discount == sd.Discount)
     {
         Quantity += sd.Quantity;
         return(true);
     }
     return(false);
 }
Пример #4
0
 //### Testing purpose
 public bool InitializeForDebugging()
 {
     lock (_locker)
     {
         ActivityLogService.Logger.LogFunctionCall();
         try
         {
             _previousSales = new List <SaleDiscount>();
             AvailableSales = makeSalesForTester();
             _shoppingBag   = new List <ShoppingItem>();
             SaleDiscount.ResetCounter();
             EngineRestarted?.Invoke();
             return(Initialized = true);
         }
         catch (Exception ex)
         {
             ActivityLogService.Logger.LogError(ex);
             return(Initialized = false);
         }
     }
 }