public override CommandResult Run()
{
if (!Add && !Remove && !Shuffle && !OrderList)
return new CommandResult(CommandStatus.Failure, "Missing one of -a -r -s -o required flag");
if (Input == null)
return new CommandResult(CommandStatus.Failure, Constants.Messages.MissingRequiredParameter.FormatWith("input"));
if (string.IsNullOrEmpty(Delimiter))
return new CommandResult(CommandStatus.Failure, Constants.Messages.MissingRequiredParameter.FormatWith("delimiter"));
if (string.IsNullOrEmpty(Element) && !Shuffle && !OrderList)
return new CommandResult(CommandStatus.Failure, Constants.Messages.MissingRequiredParameter.FormatWith("element"));
if (Shuffle && OrderList)
return new CommandResult(CommandStatus.Failure, "Cannot use -s and -o together");
var elements = new List<string>();
elements.AddRange(Input.Split(new[] { Delimiter }, StringSplitOptions.RemoveEmptyEntries));
if (Add)
{
if (!elements.Contains(Element))
elements.Add(Element);
}
else if (Remove)
{
if (elements.Contains(Element))
elements.Remove(Element);
}
else if (Shuffle)
{
System.Random random;
if(_randomSeed != null)
random = new System.Random(_randomSeed.Value);
else
random = new System.Random();
elements = (from element in elements
orderby random.Next()
select element).ToList();
}
else if (OrderList)
{
elements = (from element in elements
orderby element
select element).ToList();
}
else
return new CommandResult(CommandStatus.Failure, "Unknown operation");
if (ReverseOrder)
elements.Reverse();
return new CommandResult(CommandStatus.Success, string.Join(Delimiter, elements.ToArray()));
}