public IEnumerable<ApplicationEvent> Process(BankOperationProcessorCommand command)
{
Argument.NotNull(command, "command");
var operation = command.BankOperation;
if (operation.Status == ProcessStatus.Failed)
{
Logger.Warn("Operation #{0} has been already failed.", operation.Id);
return Enumerable.Empty<ApplicationEvent>();
}
if (operation.Status == ProcessStatus.Completed)
{
Logger.Warn("Operation #{0} has been already completed.", operation.Id);
return Enumerable.Empty<ApplicationEvent>();
}
var postponeDate = PostponeDateOrNull(operation);
if (postponeDate != null)
{
var operationModel = command.BankOperation.ToModel<BankOperation, BankOperationModel>();
var @event = new OperationProgressEvent(command.OperationId, operationModel);
return new List<ApplicationEvent>
{
new PostponedEvent(@event, postponeDate.Value)
};
}
return ProcessPending(command);
}
protected override IEnumerable<ApplicationEvent> ProcessPending(BankOperationProcessorCommand command)
{
var transfer = (Transfer) command.BankOperation;
var appOperationId = command.OperationId;
if (transfer.Withdrawal != null &&
transfer.Withdrawal.Status == ProcessStatus.Pending &&
transfer.Deposit == null)
{
return WhenWithdrawalPending(appOperationId, transfer);
}
if (transfer.Withdrawal != null &&
transfer.Deposit == null &&
transfer.Withdrawal.Status == ProcessStatus.Failed)
{
return WhenWithdrawalFailed(appOperationId, transfer);
}
if (transfer.Withdrawal != null &&
transfer.Deposit == null &&
transfer.Withdrawal.Status == ProcessStatus.Completed)
{
return WhenWithdrawalCompleted(appOperationId, transfer);
}
if (transfer.Deposit != null &&
transfer.Deposit.Status == ProcessStatus.Failed)
{
return WhenDepositFailed(appOperationId, transfer);
}
if (transfer.Deposit != null &&
transfer.Deposit.Status == ProcessStatus.Completed)
{
return WhenDepositCompleted(appOperationId, transfer);
}
return WhenStateIsInvalid(appOperationId, transfer);
}
protected abstract IEnumerable<ApplicationEvent> ProcessPending(BankOperationProcessorCommand command);
