private static (IEnumerable <LogRowKey>, ExpressionParser.ParseResult) ParseExpression(IItemDatabase database, LogRowKey source)
{
ExpressionParser.ParseResult parseResult = ExpressionParser.ParseExpression(source.Data.User);
if (parseResult != null)
{
IEnumerable <string> triggerItems = ExpressionParser.FindItems(parseResult, database.Exists).Distinct();
return(database.FindClosestTriggerKeys(source.UniqueId, source.Data.CycleIndex, triggerItems), parseResult);
}
return(new LogRowKey[0], parseResult);
}