private void updateLine(TransitLine updatedLine, TransitStopViewModel stopToUpdate = null)
{
if (stopToUpdate == null)
{
stopToUpdate = Stops.Single(stop => stop.Direction == updatedLine.Direction && stop.StopName == updatedLine.StopName);
}
// Remove arrivals that are not there in the model
// .ToList() makes a copy of the collection to iterate over
foreach (var existingArrival in stopToUpdate.Arrivals.Where(a => a.RouteName == updatedLine.RouteName).ToList())
{
if (!updatedLine.Arrivals.Contains(existingArrival.ArrivalTime))
{
stopToUpdate.Arrivals.Remove(existingArrival);
}
}
// Add arrivals that are not there in the viewmodel
foreach (var arrivalInModel in updatedLine.Arrivals)
{
if (!stopToUpdate.Arrivals.Any(a => a.RouteName == updatedLine.RouteName && a.ArrivalTime == arrivalInModel))
{
var newArrival = getNewArrival(updatedLine.RouteName, arrivalInModel, updatedLine.WalkTime);
if (newArrival.WhenINeedToLeave < BUS_CUTOFF)
{
continue;
}
var insertionPoint = stopToUpdate.Arrivals.Count(a => a.ArrivalTime < arrivalInModel);
stopToUpdate.Arrivals.Insert(insertionPoint, newArrival);
}
}
updateTimestamp();
}
/// <summary>
/// The first time a viewmodel is hooked up to the model,
/// populate the Lines collection with lines from the model
/// </summary>
private void updateLines()
{
var newStops = new ObservableCollection <TransitStopViewModel>();
foreach (var line in model.Lines)
{
var matchingStop = newStops.FirstOrDefault(s => s.ServesLine(line));
if (matchingStop == null)
{
matchingStop = new TransitStopViewModel()
{
StopName = line.StopName,
Direction = line.Direction,
Arrivals = new ObservableCollection <ArrivalViewModel>(),
};
newStops.Add(matchingStop);
}
updateLine(line, matchingStop);
}
Stops = new ObservableCollection <TransitStopViewModel>(newStops.OrderBy(s => s.Direction).OrderBy(s => s.StopName));
updateTimestamp();
}
/// <summary>
/// The first time a viewmodel is hooked up to the model,
/// populate the Lines collection with lines from the model
/// </summary>
private void updateLines()
{
var newStops = new ObservableCollection<TransitStopViewModel>();
foreach (var line in model.Lines)
{
var matchingStop = newStops.FirstOrDefault(s => s.ServesLine(line));
if (matchingStop == null)
{
matchingStop = new TransitStopViewModel()
{
StopName = line.StopName,
Direction = line.Direction,
Arrivals = new ObservableCollection<ArrivalViewModel>(),
};
newStops.Add(matchingStop);
}
updateLine(line, matchingStop);
}
Stops = new ObservableCollection<TransitStopViewModel>(newStops.OrderBy(s => s.Direction).OrderBy(s => s.StopName));
updateTimestamp();
}
private void updateLine(TransitLine updatedLine, TransitStopViewModel stopToUpdate = null)
{
if (stopToUpdate == null)
stopToUpdate = Stops.Single(stop => stop.Direction == updatedLine.Direction && stop.StopName == updatedLine.StopName);
// Remove arrivals that are not there in the model
// .ToList() makes a copy of the collection to iterate over
foreach (var existingArrival in stopToUpdate.Arrivals.Where(a => a.RouteName == updatedLine.RouteName).ToList())
{
if (!updatedLine.Arrivals.Contains(existingArrival.ArrivalTime))
{
stopToUpdate.Arrivals.Remove(existingArrival);
}
}
// Add arrivals that are not there in the viewmodel
foreach (var arrivalInModel in updatedLine.Arrivals)
{
if (!stopToUpdate.Arrivals.Any(a => a.RouteName == updatedLine.RouteName && a.ArrivalTime == arrivalInModel))
{
var newArrival = getNewArrival(updatedLine.RouteName, arrivalInModel, updatedLine.WalkTime);
if (newArrival.WhenINeedToLeave < BUS_CUTOFF)
{
continue;
}
var insertionPoint = stopToUpdate.Arrivals.Count(a => a.ArrivalTime < arrivalInModel);
stopToUpdate.Arrivals.Insert(insertionPoint, newArrival);
}
}
updateTimestamp();
}
