public ExchangeExtPriceSettings Add(string assetPairId, string exchangeName, string reason)
{
var newExchange = GetDefaultExchange();
Update(assetPairId, old => AssetPairExtPriceSettings.Change(old,
old.Exchanges.Add(exchangeName, newExchange)), reason);
return(newExchange);
}
public void Delete(string assetPairId, string exchangeName, string reason)
{
if (TryGetExchange(assetPairId, exchangeName) == null)
{
throw new Exception($"Exchange {exchangeName} not exist for asset pair {assetPairId}");
}
Update(assetPairId, old => AssetPairExtPriceSettings.Change(old,
old.Exchanges.Remove(exchangeName)), reason);
}
private void UpdateExchanges(string assetPairId, IEnumerable <string> exchangeNames,
Func <ExchangeExtPriceSettings, ExchangeExtPriceSettings> changeFunc, string reason)
{
var exchangesHashSet = exchangeNames.ToImmutableHashSet();
Update(assetPairId, old =>
{
var newExchanges = old.Exchanges
.SetItems(old.Exchanges.Where(o => exchangesHashSet.Contains(o.Key))
.Select(s => KeyValuePair.Create(s.Key, changeFunc(s.Value))));
return(AssetPairExtPriceSettings.Change(old, newExchanges));
}, reason);
}
public void UpdateWithoutExchanges(string assetPairId, AssetPairExtPriceSettings setting, string reason)
{
Update(assetPairId, old => AssetPairExtPriceSettings.Change(setting, old.Exchanges), reason);
}