public async Task Handle(MarketStateChangedEvent e)
{
await _log.WriteInfoAsync(
nameof(MarketStateChangedProjection),
nameof(Handle),
e.ToJson(),
$"Handling new MarketStateChanged event.");
if (e.Id == PlatformScheduleMarketId && e.IsEnabled)
{
var tradingDay = e.EventTimestamp.Date;
await _taxFileMissingRepository.AddAsync(tradingDay);
await _log.WriteInfoAsync(
nameof(MarketStateChangedProjection),
nameof(Handle),
new { tradingDay }.ToJson(),
"Added new tax file missing day");
}
}
public async Task Handle(MarketStateChangedEvent e)
{
if (!e.IsPlatformClosureEvent())
{
return;
}
var tradingDay = e.EventTimestamp.Date;
await _log.WriteInfoAsync(nameof(PlatformClosureProjection), nameof(Handle), e.ToJson(),
$"Platform is being closed. Starting trading snapshot backup for [{tradingDay}]");
var result = await _snapshotService.MakeTradingDataSnapshot(e.EventTimestamp.Date,
_identityGenerator.GenerateGuid(),
SnapshotStatus.Draft);
await _log.WriteInfoAsync(nameof(PlatformClosureProjection),
nameof(Handle),
e.ToJson(),
result);
}
public Task Handle(MarketStateChangedEvent e, ICommandSender sender)
{
if (!e.IsEnabled)
{
return(Task.CompletedTask);
}
// resuming liquidations on corresponding accounts upon market open
_accountsCacheService.GetAll()
.Where(a => a.IsInLiquidation())
.SelectMany(a => _ordersCache.Positions.GetPositionsByAccountIds(a.Id))
.GroupBy(p => p.AccountId)
.Where(AnyAssetRelatesToMarket)
.ForEach(account => SendResumeCommand(account.Key));
return(Task.CompletedTask);
#region internal functions
bool AnyAssetRelatesToMarket(IGrouping <string, Position> positions) =>
positions
.Select(p => _assetPairsCache.GetAssetPairById(p.AssetPairId))
.Any(assetPair => assetPair.MarketId == e.Id);
void SendResumeCommand(string accountId)
{
var account = _accountsCacheService.Get(accountId);
sender.SendCommand(new ResumeLiquidationInternalCommand
{
OperationId = account.LiquidationOperationId,
CreationTime = DateTime.UtcNow,
IsCausedBySpecialLiquidation = false,
ResumeOnlyFailed = true,
Comment = "Trying to resume liquidation because market has been opened"
}, _cqrsContextNamesSettings.TradingEngine);
}
#endregion
}
public static bool IsPlatformClosureEvent(this MarketStateChangedEvent evt) => evt.Id == LykkeConstants.PlatformMarketIdentifier && !evt.IsEnabled;
