public Task <Result> Execute(CommandMetadata metadata, double value, string from, string to)
{
Converter fromConverter = ParentPlugin.FindConverter(from);
Converter toConverter = ParentPlugin.FindConverter(to);
if (fromConverter != null && toConverter != null)
{
value = toConverter.FromSI(toConverter.ToSI(value));
return(TaskResult(value, ParentPlugin.GetConversionString(value, fromConverter, toConverter)));
}
else if (fromConverter == null)
{
throw new InvalidOperationException("Cannot convert from unit type " + from);
}
else if (toConverter == null)
{
throw new InvalidOperationException("Cannot convert to unit type " + to);
}
else
{
throw new InvalidOperationException("You shouldn't be able to get this error message, if you do I'll give you a hug.");
}
}
