private (bool success, ResolvedStop to, IncludedAssociation association) AssociationComesFrom(Station origin, Time arrivalTime, ResolvedServiceWithAssociations service)
{
foreach (var association in service.Associations.Where(a => !a.IsCancelled))
{
if (association.IsJoin)
{
var foundInAssociated = JoinComesFrom(association);
if (foundInAssociated.success)
{
return(foundInAssociated);
}
}
if (association.IsSplit)
{
var foundInAssociated = SplitComesFrom(association);
if (foundInAssociated.success)
{
return(foundInAssociated);
}
}
}
return(false, null, IncludedAssociation.NoAssociation);
(bool success, ResolvedStop to, IncludedAssociation association) JoinComesFrom(ResolvedAssociation association)
{
if (association.IsAssociated(Service.TimetableUid))
{
return(false, null, null); // We're already on the join so cannot come from main
}
var main = association.Details.Main;
var joinStop = Service.GetStop(main.AtLocation, main.Sequence);
if (joinStop.IsAfter(arrivalTime, true))
{
return(false, null, null); // We're past the join stop
}
var lastStop = association.AssociatedService.Destination;
var joinArrives = lastStop.StopArrival;
var(success, to) = lastStop.ComesFrom(origin, joinArrives.Time);
return(success,
to,
success ? new IncludedAssociation(association.AssociatedService.TimetableUid) : IncludedAssociation.NoAssociation);
}
(bool success, ResolvedStop to, IncludedAssociation association) SplitComesFrom(ResolvedAssociation association)
{
if (association.IsMain(Service.TimetableUid))
{
return(false, null, null); // We're on the main, fail as split not possible
}
var main = association.Details.Main;
var splitStop = association.AssociatedService.GetStop(main.AtLocation, main.Sequence);
var splitArrival = splitStop.StopArrival;
var(success, to) = splitStop.ComesFrom(origin, splitArrival.Time);
return(success,
to,
success ? new IncludedAssociation(association.AssociatedService.TimetableUid) : IncludedAssociation.NoAssociation);
}
}
private (bool success, ResolvedStop to, IncludedAssociation association) AssociationGoesTo(Station destination, Time departureTime, ResolvedServiceWithAssociations service)
{
foreach (var association in service.Associations.Where(a => !a.IsCancelled))
{
if (association.IsJoin)
{
var foundInAssociated = JoinGoesTo(association);
if (foundInAssociated.success)
{
return(foundInAssociated);
}
}
if (association.IsSplit)
{
var foundInAssociated = SplitGoesTo(association);
if (foundInAssociated.success)
{
return(foundInAssociated);
}
}
}
return(false, null, IncludedAssociation.NoAssociation);
(bool success, ResolvedStop to, IncludedAssociation association) JoinGoesTo(ResolvedAssociation association)
{
if (association.IsMain(Service.TimetableUid))
{
return(false, null, null); // We're on the main, fail as join not possible
}
var main = association.Details.Main;
var joinStop = association.AssociatedService.GetStop(main.AtLocation, main.Sequence);
var joinDeparture = joinStop.StopDeparture;
var(success, to) = joinStop.GoesTo(destination, joinDeparture.Time);
return(success,
to,
success ? new IncludedAssociation(association.AssociatedService.TimetableUid) : IncludedAssociation.NoAssociation);
}
(bool success, ResolvedStop to, IncludedAssociation association) SplitGoesTo(ResolvedAssociation association)
{
if (!association.IsMain(Service.TimetableUid))
{
return(false, null, null); // We're already on the split so cannot go to the main
}
var main = association.Details.Main;
var splitStop = Service.GetStop(main.AtLocation, main.Sequence);
if (splitStop.IsBefore(departureTime, true))
{
return(false, null, null); // We're past the split stop
}
var firstStop = association.AssociatedService.Origin;
var splitDeparture = firstStop.StopDeparture;
var(success, to) = firstStop.GoesTo(destination, splitDeparture.Time);
return(success,
to,
success ? new IncludedAssociation(association.AssociatedService.TimetableUid) : IncludedAssociation.NoAssociation);
}
}