public async Task <List <TradingInstrumentContract> > AssignCollection(string tradingConditionId,
[FromBody] string[] instruments)
{
var currentInstruments =
await _tradingInstrumentsRepository.GetByTradingConditionAsync(tradingConditionId);
if (currentInstruments.Any())
{
var toRemove = currentInstruments.Where(x => !instruments.Contains(x.Instrument)).ToArray();
var existingOrderGroups = await _tradingService.CheckActiveByTradingCondition(tradingConditionId);
if (existingOrderGroups.Any())
{
var errorMessage = existingOrderGroups.Aggregate(
"Unable to remove following instruments as they have active orders: ",
(current, @group) => current + $"{@group} orders) ");
throw new InvalidOperationException(errorMessage);
}
foreach (var pair in toRemove)
{
await _tradingInstrumentsRepository.DeleteAsync(pair.Instrument, pair.TradingConditionId);
}
}
var pairsToAdd = instruments.Where(x => currentInstruments.All(y => y.Instrument != x));
var addedPairs = await _tradingInstrumentsRepository.CreateDefaultTradingInstruments(tradingConditionId,
pairsToAdd, _defaultTradingInstrumentSettings);
await _eventSender.SendSettingsChangedEvent($"{Request.Path}", SettingsChangedSourceType.TradingInstrument);
return(addedPairs.Select(x => _convertService.Convert <ITradingInstrument, TradingInstrumentContract>(x))
.ToList());
}