public static (IEnumerable <IEnumerable <FlightSegment> > OJ, IEnumerable <FlightSegment> Other) AllOpenJaws(this FlightQuery flightQuery)
{
var allOpenJaws = AllOpenJawsInternal(flightQuery);
var allOpenJawsFlatten = allOpenJaws.SelectMany(x => x);
IEnumerable <FlightSegment> allSegments = flightQuery.FlightSegments;
return(allOpenJaws, allSegments.Except(allOpenJawsFlatten));
}
private static IEnumerable <IEnumerable <FlightSegment> > AllOpenJawsInternal(this FlightQuery flightQuery)
{
var head = flightQuery.FlightSegments.First();
var tail = flightQuery.FlightSegments.Skip(1).ToList();
if (tail.Count() >= 1)
{
// Modify this part to change the logic for the OpenJaw
var openJaw = tail.Where(elem => elem.Destination == head.Origin && elem.Departure > head.Departure).ToList();
if (openJaw.Any())
{
var theRest = tail.Except(openJaw).ToList();
return(new[] { openJaw.Prepend(head) }.Concat(
theRest.Any()
? new FlightQuery {
FlightSegments = theRest.ToArray()
}.AllOpenJawsInternal()
: new List <IEnumerable <FlightSegment> >().ToArray()));
}
else
{
return(new FlightQuery {
FlightSegments = tail.ToArray()
}.AllOpenJawsInternal());
}
}
return(new List <IEnumerable <FlightSegment> >().ToArray());
}