//AddIntermediate(): Allows another station to be added to Intermediates
public static bool AddIntermediate(this IIntermediate train, string intermediate)
{
if (!stations.Contains(intermediate) || train.Intermediates.Contains(intermediate))
{
return(false);
}
train.Intermediates.Add(intermediate);
return(true);
}
//IntermediateValidation(): Exception thrown if a list of string contains invalid station values
public static void IntermediateValidation(this IIntermediate train, List <string> value)
{
foreach (var station in value)
{
if (!stations.Contains(station))
{
throw new ArgumentOutOfRangeException("Intermediates are not valid.");
}
}
}
//IString(): Returns the list of intermediates as a single string joined by a hyphen
public static string IString(this IIntermediate train) => string.Join("-", train.Intermediates.ToArray());
public Outer(IIntermediate intermediate)
{
_intermediate = intermediate;
}