コード例 #1
0
        public async Task <PurchaseOrderResponse> Handle(PurchaseOrderRequest request, CancellationToken cancellationToken)
        {
            if (!await balanceValidationService.HasEnoughFunds(httpContextReader.CurrentUserId, request.TotalAmount))
            {
                throw new PaymentException("Insufficient funds to complete transaction");
            }

            var order = await orderService.PurchaseOrder(request);

            var orderOfferItems = order.Items.Where(i => i.Type == OrderType.Offer);
            var offersData      = orderOfferItems.Select(i => new { OwnerId = i.OptionalData, Amount = (decimal)i.Amount / Constants.MoneyMultiplier });

            foreach (var item in orderOfferItems)
            {
                var notification = await notifier.Push(NotificationMessages.OfferBoughtMessage(order.User.UserName, item.ProductName), item.OptionalData);

                await hubManager.Invoke(SignalrActions.NOTIFICATION_RECEIVED, item.OptionalData, mapper.Map <NotificationDto>(notification));
            }

            var premiumOrder = order.Items.FirstOrDefault(i => i.Type == OrderType.Premium);

            if (premiumOrder != null && !await rolesManager.AdmitRole(RoleName.Premium, order.User))
            {
                throw new PaymentException("Upgrading account to premium status failed");
            }

            if (order != null)
            {
                foreach (var offerData in offersData)
                {
                    await balanceService.AddBalance(offerData.OwnerId, offerData.Amount);

                    await balanceService.AddBalance(order.UserId, -offerData.Amount);
                }

                string token = default(string);

                if (premiumOrder != null)
                {
                    await balanceService.AddBalance(order.UserId, -(decimal)premiumOrder.Amount / Constants.MoneyMultiplier);

                    token = await jwtAuthorizationTokenGenerator.GenerateToken(order.User);
                }

                return(new PurchaseOrderResponse {
                    Order = mapper.Map <OrderDto>(order), Token = token
                });
            }

            throw new PaymentException("Purchasing order failed");
        }