public async Task HandleAsync(StocksTakedOffFromWalletEvent message)
{
var orderProcessManager = await _processManagerRepository.FindAsync(message.OrderId);
try
{
orderProcessManager.When(message);
}
catch (StocqresException e)
{
orderProcessManager.When(new SellOrderCancelledEvent(e.Message));
}
await _processManagerRepository.Save(orderProcessManager);
}
public void When(StocksTakedOffFromWalletEvent message)
{
switch (State)
{
case SellOrderProcessManagerState.OrderPlaced:
CompanyId = message.CompanyId;
StockQuantity = message.Quantity;
State = SellOrderProcessManagerState.StocksTakedOffFromWallet;
ProcessCommand(new AddStocksToCompanyCommand(CompanyId, message.AggregateId, message.Quantity,
StockCode));
break;
// idempotence - same message sent twice
case SellOrderProcessManagerState.StocksTakedOffFromWallet:
break;
default:
throw new StocqresException("Invalid state for this message");
}
}
private void Apply(StocksTakedOffFromWalletEvent @event)
{
var stock = StockList.First(s => s.CompanyId == @event.CompanyId);
stock.Quantity -= @event.Quantity;
}
