private async Task HandleTradingDisabled(ProductContract product, string username)
{
if (product.IsTradingDisabled)
{
_log.WriteInfo(nameof(ProductChangedProjection), nameof(HandleTradingDisabled),
$"Trading disabled for product {product.ProductId}");
var allRfq = await RetrieveAllRfq(product.ProductId, canBePaused : true);
_log.WriteInfo(nameof(ProductChangedProjection), nameof(HandleTradingDisabled),
$"Found rfqs to pause: {allRfq.Select(x => x.Id).ToJson()}");
foreach (var rfq in allRfq)
{
_log.WriteInfo(nameof(ProductChangedProjection), nameof(HandleTradingDisabled),
$"Trying to pause rfq: {rfq.Id}");
await _rfqPauseService.AddAsync(rfq.Id,
PauseSource.TradingDisabled,
username);
}
}
else
{
_log.WriteInfo(nameof(ProductChangedProjection), nameof(HandleTradingDisabled),
$"Trading enabled for product {product.ProductId}");
var allRfq = await RetrieveAllRfq(product.ProductId, canBeResumed : true, canBeStopped : true);
_log.WriteInfo(nameof(ProductChangedProjection), nameof(HandleTradingDisabled),
$"Found rfqs to resume or stop: {allRfq.Select(x => x.Id).ToJson()}");
foreach (var rfq in allRfq)
{
if (rfq.PauseSummary?.CanBeResumed ?? false)
{
_log.WriteInfo(nameof(ProductChangedProjection), nameof(HandleTradingDisabled),
$"Trying to resume rfq: {rfq.Id}");
await _rfqPauseService.ResumeAsync(rfq.Id,
PauseCancellationSource.TradingEnabled,
username);
}
else if (rfq.PauseSummary?.CanBeStopped ?? false)
{
_log.WriteInfo(nameof(ProductChangedProjection), nameof(HandleTradingDisabled),
$"Trying to stop pending pause for rfq: {rfq.Id}");
await _rfqPauseService.StopPendingAsync(rfq.Id,
PauseCancellationSource.TradingEnabled,
username);
}
else
{
_log.WriteWarning(nameof(ProductChangedProjection), nameof(HandleTradingDisabled),
$"Unexpected state for rfq: {rfq.Id}, {rfq.ToJson()}");
}
}
}
}
private async Task Handle(PriceForSpecialLiquidationCalculatedEvent e, ICommandSender sender)
{
var executionInfo = await _operationExecutionInfoRepository.GetAsync <SpecialLiquidationOperationData>(
operationName : OperationName,
id : e.OperationId);
if (executionInfo?.Data == null)
{
return;
}
var pause = await _rfqPauseService.GetCurrentAsync(e.OperationId);
if (pause?.State == PauseState.Active)
{
return;
}
if (executionInfo.Data.SwitchState(SpecialLiquidationOperationState.PriceRequested,
SpecialLiquidationOperationState.PriceReceived))
{
//validate that volume didn't changed to peek either to execute order or request the price again
var currentVolume = GetNetPositionCloseVolume(executionInfo.Data.PositionIds, executionInfo.Data.AccountId);
if (currentVolume != 0 && currentVolume != executionInfo.Data.Volume)
{
// if RFQ is paused we will not continue
var pauseAcknowledged = await _rfqPauseService.AcknowledgeAsync(e.OperationId);
if (pauseAcknowledged)
{
return;
}
executionInfo.Data.RequestNumber++;
executionInfo.Data.Volume = currentVolume;
RequestPrice(sender, executionInfo);
await _operationExecutionInfoRepository.Save(executionInfo);
return;//wait for the new price
}
await _rfqPauseService.StopPendingAsync(e.OperationId, PauseCancellationSource.PriceReceived, nameof(SpecialLiquidationSaga));
executionInfo.Data.Price = e.Price;
//execute order in Gavel by API
sender.SendCommand(new ExecuteSpecialLiquidationOrderCommand
{
OperationId = e.OperationId,
CreationTime = _dateService.Now(),
Instrument = executionInfo.Data.Instrument,
Volume = executionInfo.Data.Volume,
Price = e.Price,
}, _cqrsContextNamesSettings.TradingEngine);
_chaosKitty.Meow(e.OperationId);
await _operationExecutionInfoRepository.Save(executionInfo);
}
}