public async Task <IEnumerable <IAccountAssetPair> > AssignInstruments(string tradingConditionId,
string baseAssetId, string[] instruments)
{
var defaults = _settings.DefaultAccountAssetsSettings ?? new AccountAssetsSettings();
var currentInstruments = (await _pairsRepository.GetAllAsync(tradingConditionId, baseAssetId)).ToArray();
if (currentInstruments.Any())
{
var toRemove = currentInstruments.Where(x => !instruments.Contains(x.Instrument)).ToArray();
var existingOrderGroups = _orderReader.GetAll()
.Where(o => o.TradingConditionId == tradingConditionId && o.AccountAssetId == baseAssetId)
.GroupBy(o => o.Instrument)
.Where(o => toRemove.Any(i => i.Instrument == o.Key))
.ToArray();
if (existingOrderGroups.Any())
{
var errorMessage = "Unable to remove following instruments as they have active orders: ";
foreach (var group in existingOrderGroups)
{
errorMessage += $"{group.Key}({group.Count()} orders) ";
}
throw new InvalidOperationException(errorMessage);
}
foreach (var pair in toRemove)
{
await _pairsRepository.Remove(pair.TradingConditionId, pair.BaseAssetId, pair.Instrument);
}
}
var pairsToAdd = instruments.Where(x => currentInstruments.All(y => y.Instrument != x));
var addedPairs = await _pairsRepository.AddAssetPairs(tradingConditionId, baseAssetId, pairsToAdd, defaults);
await UpdateAccountAssetsCache();
await _clientNotifyService.NotifyTradingConditionsChanged(tradingConditionId);
return(addedPairs);
}
public List <SummaryAssetInfo> GetAssetsInfo()
{
var result = new List <SummaryAssetInfo>();
var orders = _ordersReader.GetAll().ToList();
foreach (var order in orders)
{
var assetInfo = result.FirstOrDefault(item => item.AssetPairId == order.Instrument);
if (assetInfo == null)
{
result.Add(new SummaryAssetInfo
{
AssetPairId = order.Instrument,
PnL = order.GetFpl(),
VolumeLong = order.GetOrderType() == OrderDirection.Buy ? order.GetMatchedVolume() : 0,
VolumeShort = order.GetOrderType() == OrderDirection.Sell ? order.GetMatchedVolume() : 0
});
}
else
{
assetInfo.PnL += order.GetFpl();
if (order.GetOrderType() == OrderDirection.Buy)
{
assetInfo.VolumeLong += order.GetMatchedVolume();
}
else
{
assetInfo.VolumeShort += order.GetMatchedVolume();
}
}
}
return(result);
}