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-rw-r--r--src/Enmarcha.Backend/Services/Processors/AbstractProcessor.cs56
-rw-r--r--src/Enmarcha.Backend/Services/Processors/CorunaRealTimeProcessor.cs181
-rw-r--r--src/Enmarcha.Backend/Services/Processors/FeedConfigProcessor.cs84
-rw-r--r--src/Enmarcha.Backend/Services/Processors/FilterAndSortProcessor.cs44
-rw-r--r--src/Enmarcha.Backend/Services/Processors/MarqueeProcessor.cs26
-rw-r--r--src/Enmarcha.Backend/Services/Processors/NextStopsProcessor.cs34
-rw-r--r--src/Enmarcha.Backend/Services/Processors/SantiagoRealTimeProcessor.cs88
-rw-r--r--src/Enmarcha.Backend/Services/Processors/ShapeProcessor.cs132
-rw-r--r--src/Enmarcha.Backend/Services/Processors/VitrasaRealTimeProcessor.cs254
9 files changed, 899 insertions, 0 deletions
diff --git a/src/Enmarcha.Backend/Services/Processors/AbstractProcessor.cs b/src/Enmarcha.Backend/Services/Processors/AbstractProcessor.cs
new file mode 100644
index 0000000..d6b420f
--- /dev/null
+++ b/src/Enmarcha.Backend/Services/Processors/AbstractProcessor.cs
@@ -0,0 +1,56 @@
+using Enmarcha.Backend.Services;
+
+public abstract class AbstractRealTimeProcessor : IArrivalsProcessor
+{
+ public abstract Task ProcessAsync(ArrivalsContext context);
+
+ protected static List<(double Lat, double Lon)> Decode(string encodedPoints)
+ {
+ if (string.IsNullOrEmpty(encodedPoints))
+ return new List<(double, double)>();
+
+ var poly = new List<(double, double)>();
+ char[] polylineChars = encodedPoints.ToCharArray();
+ int index = 0;
+
+ int currentLat = 0;
+ int currentLng = 0;
+ int next5bits;
+ int sum;
+ int shifter;
+
+ while (index < polylineChars.Length)
+ {
+ // calculate next latitude
+ sum = 0;
+ shifter = 0;
+ do
+ {
+ next5bits = (int)polylineChars[index++] - 63;
+ sum |= (next5bits & 31) << shifter;
+ shifter += 5;
+ } while (next5bits >= 32 && index < polylineChars.Length);
+
+ if (index >= polylineChars.Length)
+ break;
+
+ currentLat += (sum & 1) == 1 ? ~(sum >> 1) : (sum >> 1);
+
+ // calculate next longitude
+ sum = 0;
+ shifter = 0;
+ do
+ {
+ next5bits = (int)polylineChars[index++] - 63;
+ sum |= (next5bits & 31) << shifter;
+ shifter += 5;
+ } while (next5bits >= 32 && index < polylineChars.Length);
+
+ currentLng += (sum & 1) == 1 ? ~(sum >> 1) : (sum >> 1);
+
+ poly.Add((Convert.ToDouble(currentLat) / 100000.0, Convert.ToDouble(currentLng) / 100000.0));
+ }
+
+ return poly;
+ }
+}
diff --git a/src/Enmarcha.Backend/Services/Processors/CorunaRealTimeProcessor.cs b/src/Enmarcha.Backend/Services/Processors/CorunaRealTimeProcessor.cs
new file mode 100644
index 0000000..ca3f91d
--- /dev/null
+++ b/src/Enmarcha.Backend/Services/Processors/CorunaRealTimeProcessor.cs
@@ -0,0 +1,181 @@
+using Enmarcha.Sources.OpenTripPlannerGql.Queries;
+using Enmarcha.Sources.TranviasCoruna;
+using Enmarcha.Backend.Types;
+using Enmarcha.Backend.Types.Arrivals;
+using Arrival = Enmarcha.Backend.Types.Arrivals.Arrival;
+
+namespace Enmarcha.Backend.Services.Processors;
+
+public class CorunaRealTimeProcessor : AbstractRealTimeProcessor
+{
+ private readonly CorunaRealtimeEstimatesProvider _realtime;
+ private readonly FeedService _feedService;
+ private readonly ILogger<CorunaRealTimeProcessor> _logger;
+ private readonly ShapeTraversalService _shapeService;
+
+ public CorunaRealTimeProcessor(
+ HttpClient http,
+ FeedService feedService,
+ ILogger<CorunaRealTimeProcessor> logger,
+ ShapeTraversalService shapeService)
+ {
+ _realtime = new CorunaRealtimeEstimatesProvider(http);
+ _feedService = feedService;
+ _logger = logger;
+ _shapeService = shapeService;
+ }
+
+ public override async Task ProcessAsync(ArrivalsContext context)
+ {
+ if (!context.StopId.StartsWith("tranvias:")) return;
+
+ var normalizedCode = _feedService.NormalizeStopCode("tranvias", context.StopCode);
+ if (!int.TryParse(normalizedCode, out var numericStopId)) return;
+
+ try
+ {
+ Epsg25829? stopLocation = null;
+ if (context.StopLocation != null)
+ {
+ stopLocation = _shapeService.TransformToEpsg25829(context.StopLocation.Latitude, context.StopLocation.Longitude);
+ }
+
+ var realtime = await _realtime.GetEstimatesForStop(numericStopId);
+
+ var usedTripIds = new HashSet<string>();
+ var newArrivals = new List<Arrival>();
+
+ foreach (var estimate in realtime)
+ {
+ var bestMatch = context.Arrivals
+ .Where(a => !usedTripIds.Contains(a.TripId))
+ .Where(a => a.Route.RouteIdInGtfs.Trim() == estimate.RouteId.Trim())
+ .Select(a =>
+ {
+ return new
+ {
+ Arrival = a,
+ TimeDiff = estimate.Minutes - a.Estimate.Minutes, // RealTime - Schedule
+ RouteMatch = true
+ };
+ })
+ .Where(x => x.RouteMatch) // Strict route matching
+ .Where(x => x.TimeDiff >= -7 && x.TimeDiff <= 75) // Allow 7m early (RealTime < Schedule) or 75m late (RealTime > Schedule)
+ .OrderBy(x => Math.Abs(x.TimeDiff)) // Best time fit
+ .FirstOrDefault();
+
+ if (bestMatch == null)
+ {
+ continue;
+ }
+
+ var arrival = bestMatch.Arrival;
+
+ var scheduledMinutes = arrival.Estimate.Minutes;
+ arrival.Estimate.Minutes = estimate.Minutes;
+ arrival.Estimate.Precision = ArrivalPrecision.Confident;
+
+ // Calculate delay badge
+ var delayMinutes = estimate.Minutes - scheduledMinutes;
+ if (delayMinutes != 0)
+ {
+ arrival.Delay = new DelayBadge { Minutes = delayMinutes };
+ }
+
+ // Calculate position
+ if (stopLocation != null)
+ {
+ Position? currentPosition = null;
+ int? stopShapeIndex = null;
+
+ if (arrival.RawOtpTrip is ArrivalsAtStopResponse.Arrival otpArrival &&
+ otpArrival.Trip.Geometry?.Points != null)
+ {
+ var decodedPoints = Decode(otpArrival.Trip.Geometry.Points)
+ .Select(p => new Position { Latitude = p.Lat, Longitude = p.Lon })
+ .ToList();
+
+ var shape = _shapeService.CreateShapeFromWgs84(decodedPoints);
+
+ // Ensure meters is positive
+ var meters = Math.Max(0, estimate.Metres);
+ var result = _shapeService.GetBusPosition(shape, stopLocation, meters);
+
+ currentPosition = result.BusPosition;
+ stopShapeIndex = result.StopIndex;
+
+ if (currentPosition != null)
+ {
+ _logger.LogInformation("Calculated position from OTP geometry for trip {TripId}: {Lat}, {Lon}", arrival.TripId, currentPosition.Latitude, currentPosition.Longitude);
+ }
+
+ // Populate Shape GeoJSON
+ if (!context.IsReduced && currentPosition != null)
+ {
+ var features = new List<object>();
+ features.Add(new
+ {
+ type = "Feature",
+ geometry = new
+ {
+ type = "LineString",
+ coordinates = decodedPoints.Select(p => new[] { p.Longitude, p.Latitude }).ToList()
+ },
+ properties = new { type = "route" }
+ });
+
+ // Add stops if available
+ if (otpArrival.Trip.Stoptimes != null)
+ {
+ foreach (var stoptime in otpArrival.Trip.Stoptimes)
+ {
+ features.Add(new
+ {
+ type = "Feature",
+ geometry = new
+ {
+ type = "Point",
+ coordinates = new[] { stoptime.Stop.Lon, stoptime.Stop.Lat }
+ },
+ properties = new
+ {
+ type = "stop",
+ name = stoptime.Stop.Name
+ }
+ });
+ }
+ }
+
+ arrival.Shape = new
+ {
+ type = "FeatureCollection",
+ features = features
+ };
+ }
+ }
+
+ if (currentPosition != null)
+ {
+ arrival.CurrentPosition = currentPosition;
+ arrival.StopShapeIndex = stopShapeIndex;
+ }
+ }
+
+ usedTripIds.Add(arrival.TripId);
+
+ }
+
+ context.Arrivals.AddRange(newArrivals);
+ }
+ catch (Exception ex)
+ {
+ _logger.LogError(ex, "Error fetching Vitrasa real-time data for stop {StopId}", context.StopId);
+ }
+ }
+
+ private static bool IsRouteMatch(string a, string b)
+ {
+ return a == b || a.Contains(b) || b.Contains(a);
+ }
+
+}
diff --git a/src/Enmarcha.Backend/Services/Processors/FeedConfigProcessor.cs b/src/Enmarcha.Backend/Services/Processors/FeedConfigProcessor.cs
new file mode 100644
index 0000000..2d5f5d9
--- /dev/null
+++ b/src/Enmarcha.Backend/Services/Processors/FeedConfigProcessor.cs
@@ -0,0 +1,84 @@
+using Enmarcha.Backend.Helpers;
+using Enmarcha.Backend.Types.Arrivals;
+
+namespace Enmarcha.Backend.Services.Processors;
+
+public class FeedConfigProcessor : IArrivalsProcessor
+{
+ private readonly FeedService _feedService;
+
+ public FeedConfigProcessor(FeedService feedService)
+ {
+ _feedService = feedService;
+ }
+
+ public Task ProcessAsync(ArrivalsContext context)
+ {
+ var feedId = context.StopId.Split(':')[0];
+ var (fallbackColor, fallbackTextColor) = _feedService.GetFallbackColourForFeed(feedId);
+
+ foreach (var arrival in context.Arrivals)
+ {
+ arrival.Route.ShortName = _feedService.NormalizeRouteShortName(feedId, arrival.Route.ShortName);
+ arrival.Headsign.Destination = _feedService.NormalizeStopName(feedId, arrival.Headsign.Destination);
+
+ // Apply Vitrasa-specific line formatting
+ if (feedId == "vitrasa")
+ {
+ FormatVitrasaLine(arrival);
+ arrival.Shift = _feedService.GetShiftBadge(feedId, arrival.TripId);
+ }
+
+ if (string.IsNullOrEmpty(arrival.Route.Colour) || arrival.Route.Colour == "FFFFFF")
+ {
+ arrival.Route.Colour = fallbackColor;
+ arrival.Route.TextColour = fallbackTextColor;
+ }
+ else if (string.IsNullOrEmpty(arrival.Route.TextColour) || arrival.Route.TextColour == "000000")
+ {
+ arrival.Route.TextColour = ContrastHelper.GetBestTextColour(arrival.Route.Colour);
+ }
+ }
+
+ return Task.CompletedTask;
+ }
+
+ private static void FormatVitrasaLine(Arrival arrival)
+ {
+ arrival.Headsign.Destination = arrival.Headsign.Destination.Replace("*", "");
+
+ if (arrival.Headsign.Destination == "FORA DE SERVIZO.G.B.")
+ {
+ arrival.Headsign.Destination = "García Barbón, 7 (fora de servizo)";
+ return;
+ }
+
+ switch (arrival.Route.ShortName)
+ {
+ case "A" when arrival.Headsign.Destination.StartsWith("\"1\""):
+ arrival.Route.ShortName = "A1";
+ arrival.Headsign.Destination = arrival.Headsign.Destination.Replace("\"1\"", "");
+ break;
+ case "6":
+ arrival.Headsign.Destination = arrival.Headsign.Destination.Replace("\"", "");
+ break;
+ case "FUT":
+ if (arrival.Headsign.Destination == "CASTELAO-CAMELIAS-G.BARBÓN.M.GARRIDO")
+ {
+ arrival.Route.ShortName = "MAR";
+ arrival.Headsign.Destination = "MARCADOR ⚽: CASTELAO-CAMELIAS-G.BARBÓN.M.GARRIDO";
+ }
+ else if (arrival.Headsign.Destination == "P. ESPAÑA-T.VIGO-S.BADÍA")
+ {
+ arrival.Route.ShortName = "RIO";
+ arrival.Headsign.Destination = "RÍO ⚽: P. ESPAÑA-T.VIGO-S.BADÍA";
+ }
+ else if (arrival.Headsign.Destination == "NAVIA-BOUZAS-URZAIZ-G. ESPINO")
+ {
+ arrival.Route.ShortName = "GOL";
+ arrival.Headsign.Destination = "GOL ⚽: NAVIA-BOUZAS-URZAIZ-G. ESPINO";
+ }
+ break;
+ }
+ }
+}
diff --git a/src/Enmarcha.Backend/Services/Processors/FilterAndSortProcessor.cs b/src/Enmarcha.Backend/Services/Processors/FilterAndSortProcessor.cs
new file mode 100644
index 0000000..7df00fa
--- /dev/null
+++ b/src/Enmarcha.Backend/Services/Processors/FilterAndSortProcessor.cs
@@ -0,0 +1,44 @@
+using Enmarcha.Backend.Types.Arrivals;
+
+namespace Enmarcha.Backend.Services.Processors;
+
+/// <summary>
+/// Filters and sorts the arrivals based on the feed and the requested limit.
+/// This should run after real-time matching but before heavy enrichment (shapes, marquee).
+/// </summary>
+public class FilterAndSortProcessor : IArrivalsProcessor
+{
+ public Task ProcessAsync(ArrivalsContext context)
+ {
+ var feedId = context.StopId.Split(':')[0];
+
+ // 1. Sort by minutes
+ var sorted = context.Arrivals
+ .OrderBy(a => a.Estimate.Minutes)
+ .ToList();
+
+ // 2. Filter based on feed rules
+ var filtered = sorted.Where(a =>
+ {
+ if (feedId == "vitrasa")
+ {
+ // For Vitrasa, we hide past arrivals because we have real-time
+ // If a past arrival was matched to a real-time estimate, its Minutes will be >= 0
+ return a.Estimate.Minutes >= 0;
+ }
+
+ // For others, show up to 10 minutes ago
+ return a.Estimate.Minutes >= -10;
+ }).ToList();
+
+ // 3. Limit results
+ var limit = context.IsReduced ? 4 : 10;
+ var limited = filtered.Take(limit).ToList();
+
+ // Update the context list in-place
+ context.Arrivals.Clear();
+ context.Arrivals.AddRange(limited);
+
+ return Task.CompletedTask;
+ }
+}
diff --git a/src/Enmarcha.Backend/Services/Processors/MarqueeProcessor.cs b/src/Enmarcha.Backend/Services/Processors/MarqueeProcessor.cs
new file mode 100644
index 0000000..9e620c2
--- /dev/null
+++ b/src/Enmarcha.Backend/Services/Processors/MarqueeProcessor.cs
@@ -0,0 +1,26 @@
+namespace Enmarcha.Backend.Services.Processors;
+
+public class MarqueeProcessor : IArrivalsProcessor
+{
+ private readonly FeedService _feedService;
+
+ public MarqueeProcessor(FeedService feedService)
+ {
+ _feedService = feedService;
+ }
+
+ public Task ProcessAsync(ArrivalsContext context)
+ {
+ var feedId = context.StopId.Split(':')[0];
+
+ foreach (var arrival in context.Arrivals)
+ {
+ if (string.IsNullOrEmpty(arrival.Headsign.Marquee))
+ {
+ arrival.Headsign.Marquee = _feedService.GenerateMarquee(feedId, arrival.NextStops);
+ }
+ }
+
+ return Task.CompletedTask;
+ }
+}
diff --git a/src/Enmarcha.Backend/Services/Processors/NextStopsProcessor.cs b/src/Enmarcha.Backend/Services/Processors/NextStopsProcessor.cs
new file mode 100644
index 0000000..5d02066
--- /dev/null
+++ b/src/Enmarcha.Backend/Services/Processors/NextStopsProcessor.cs
@@ -0,0 +1,34 @@
+using Enmarcha.Sources.OpenTripPlannerGql.Queries;
+
+namespace Enmarcha.Backend.Services.Processors;
+
+public class NextStopsProcessor : IArrivalsProcessor
+{
+ private readonly FeedService _feedService;
+
+ public NextStopsProcessor(FeedService feedService)
+ {
+ _feedService = feedService;
+ }
+
+ public Task ProcessAsync(ArrivalsContext context)
+ {
+ var feedId = context.StopId.Split(':')[0];
+
+ foreach (var arrival in context.Arrivals)
+ {
+ if (arrival.RawOtpTrip is not ArrivalsAtStopResponse.Arrival otpArrival) continue;
+
+ // Filter stoptimes that are after the current stop's departure
+ var currentStopDeparture = otpArrival.ScheduledDepartureSeconds;
+
+ arrival.NextStops = otpArrival.Trip.Stoptimes
+ .Where(s => s.ScheduledDeparture > currentStopDeparture)
+ .OrderBy(s => s.ScheduledDeparture)
+ .Select(s => _feedService.NormalizeStopName(feedId, s.Stop.Name))
+ .ToList();
+ }
+
+ return Task.CompletedTask;
+ }
+}
diff --git a/src/Enmarcha.Backend/Services/Processors/SantiagoRealTimeProcessor.cs b/src/Enmarcha.Backend/Services/Processors/SantiagoRealTimeProcessor.cs
new file mode 100644
index 0000000..28b38a9
--- /dev/null
+++ b/src/Enmarcha.Backend/Services/Processors/SantiagoRealTimeProcessor.cs
@@ -0,0 +1,88 @@
+using Enmarcha.Sources.OpenTripPlannerGql.Queries;
+using Enmarcha.Sources.TranviasCoruna;
+using Enmarcha.Backend.Types;
+using Enmarcha.Backend.Types.Arrivals;
+using Enmarcha.Sources.Tussa;
+using Arrival = Enmarcha.Backend.Types.Arrivals.Arrival;
+
+namespace Enmarcha.Backend.Services.Processors;
+
+public class SantiagoRealTimeProcessor : AbstractRealTimeProcessor
+{
+ private readonly SantiagoRealtimeEstimatesProvider _realtime;
+ private readonly FeedService _feedService;
+ private readonly ILogger<SantiagoRealTimeProcessor> _logger;
+
+ public SantiagoRealTimeProcessor(
+ HttpClient http,
+ FeedService feedService,
+ ILogger<SantiagoRealTimeProcessor> logger)
+ {
+ _realtime = new SantiagoRealtimeEstimatesProvider(http);
+ _feedService = feedService;
+ _logger = logger;
+ }
+
+ public override async Task ProcessAsync(ArrivalsContext context)
+ {
+ if (!context.StopId.StartsWith("tussa:")) return;
+
+ var normalizedCode = _feedService.NormalizeStopCode("tussa", context.StopCode);
+ if (!int.TryParse(normalizedCode, out var numericStopId)) return;
+
+ try
+ {
+ var realtime = await _realtime.GetEstimatesForStop(numericStopId);
+
+ var usedTripIds = new HashSet<string>();
+ var newArrivals = new List<Arrival>();
+
+ foreach (var estimate in realtime)
+ {
+ var bestMatch = context.Arrivals
+ .Where(a => !usedTripIds.Contains(a.TripId))
+ .Where(a => a.Route.RouteIdInGtfs.Trim() == estimate.RouteId.Trim())
+ .Select(a =>
+ {
+ return new
+ {
+ Arrival = a,
+ TimeDiff = estimate.Minutes - a.Estimate.Minutes, // RealTime - Schedule
+ RouteMatch = true
+ };
+ })
+ .Where(x => x.RouteMatch) // Strict route matching
+ .Where(x => x.TimeDiff >= -7 && x.TimeDiff <= 75) // Allow 7m early (RealTime < Schedule) or 75m late (RealTime > Schedule)
+ .OrderBy(x => Math.Abs(x.TimeDiff)) // Best time fit
+ .FirstOrDefault();
+
+ if (bestMatch == null)
+ {
+ continue;
+ }
+
+ var arrival = bestMatch.Arrival;
+
+ var scheduledMinutes = arrival.Estimate.Minutes;
+ arrival.Estimate.Minutes = estimate.Minutes;
+ arrival.Estimate.Precision = ArrivalPrecision.Confident;
+
+ // Calculate delay badge
+ var delayMinutes = estimate.Minutes - scheduledMinutes;
+ if (delayMinutes != 0)
+ {
+ arrival.Delay = new DelayBadge { Minutes = delayMinutes };
+ }
+
+ usedTripIds.Add(arrival.TripId);
+ }
+
+ context.Arrivals.AddRange(newArrivals);
+ }
+ catch (Exception ex)
+ {
+ _logger.LogError(ex, "Error fetching Vitrasa real-time data for stop {StopId}", context.StopId);
+ }
+ }
+
+}
diff --git a/src/Enmarcha.Backend/Services/Processors/ShapeProcessor.cs b/src/Enmarcha.Backend/Services/Processors/ShapeProcessor.cs
new file mode 100644
index 0000000..f3af3a5
--- /dev/null
+++ b/src/Enmarcha.Backend/Services/Processors/ShapeProcessor.cs
@@ -0,0 +1,132 @@
+using Enmarcha.Sources.OpenTripPlannerGql.Queries;
+
+namespace Enmarcha.Backend.Services.Processors;
+
+public class ShapeProcessor : IArrivalsProcessor
+{
+ private readonly ILogger<ShapeProcessor> _logger;
+
+ public ShapeProcessor(ILogger<ShapeProcessor> logger)
+ {
+ _logger = logger;
+ }
+
+ public Task ProcessAsync(ArrivalsContext context)
+ {
+ if (context.IsReduced)
+ {
+ return Task.CompletedTask;
+ }
+
+ foreach (var arrival in context.Arrivals)
+ {
+ // If shape is already populated (e.g. by VitrasaRealTimeProcessor), skip
+ if (arrival.Shape != null) continue;
+
+ if (arrival.RawOtpTrip is not ArrivalsAtStopResponse.Arrival otpArrival) continue;
+
+ var encodedPoints = otpArrival.Trip.Geometry?.Points;
+ if (string.IsNullOrEmpty(encodedPoints))
+ {
+ _logger.LogDebug("No geometry found for trip {TripId}", arrival.TripId);
+ continue;
+ }
+
+ try
+ {
+ var points = Decode(encodedPoints);
+ if (points.Count == 0) continue;
+
+ var features = new List<object>();
+
+ // Route LineString
+ features.Add(new
+ {
+ type = "Feature",
+ geometry = new
+ {
+ type = "LineString",
+ coordinates = points.Select(p => new[] { p.Lon, p.Lat }).ToList()
+ },
+ properties = new { type = "route" }
+ });
+
+ // Stops
+ if (otpArrival.Trip.Stoptimes != null)
+ {
+ foreach (var stoptime in otpArrival.Trip.Stoptimes)
+ {
+ features.Add(new
+ {
+ type = "Feature",
+ geometry = new
+ {
+ type = "Point",
+ coordinates = new[] { stoptime.Stop.Lon, stoptime.Stop.Lat }
+ },
+ properties = new
+ {
+ type = "stop",
+ name = stoptime.Stop.Name
+ }
+ });
+ }
+ }
+
+ arrival.Shape = new
+ {
+ type = "FeatureCollection",
+ features = features
+ };
+ }
+ catch (Exception ex)
+ {
+ _logger.LogError(ex, "Error decoding shape for trip {TripId}", arrival.TripId);
+ }
+ }
+
+ return Task.CompletedTask;
+ }
+
+ private static List<(double Lat, double Lon)> Decode(string encodedPoints)
+ {
+ var poly = new List<(double, double)>();
+ char[] polylineChars = encodedPoints.ToCharArray();
+ int index = 0;
+
+ int currentLat = 0;
+ int currentLng = 0;
+ int next5bits;
+ int sum;
+ int shifter;
+
+ while (index < polylineChars.Length)
+ {
+ sum = 0;
+ shifter = 0;
+ do
+ {
+ next5bits = (int)polylineChars[index++] - 63;
+ sum |= (next5bits & 31) << shifter;
+ shifter += 5;
+ } while (next5bits >= 32 && index < polylineChars.Length);
+
+ currentLat += (sum & 1) == 1 ? ~(sum >> 1) : (sum >> 1);
+
+ sum = 0;
+ shifter = 0;
+ do
+ {
+ next5bits = (int)polylineChars[index++] - 63;
+ sum |= (next5bits & 31) << shifter;
+ shifter += 5;
+ } while (next5bits >= 32 && index < polylineChars.Length);
+
+ currentLng += (sum & 1) == 1 ? ~(sum >> 1) : (sum >> 1);
+
+ poly.Add((Convert.ToDouble(currentLat) / 100000.0, Convert.ToDouble(currentLng) / 100000.0));
+ }
+
+ return poly;
+ }
+}
diff --git a/src/Enmarcha.Backend/Services/Processors/VitrasaRealTimeProcessor.cs b/src/Enmarcha.Backend/Services/Processors/VitrasaRealTimeProcessor.cs
new file mode 100644
index 0000000..5d44995
--- /dev/null
+++ b/src/Enmarcha.Backend/Services/Processors/VitrasaRealTimeProcessor.cs
@@ -0,0 +1,254 @@
+using Enmarcha.Sources.OpenTripPlannerGql.Queries;
+using Costasdev.VigoTransitApi;
+using Enmarcha.Backend.Configuration;
+using Enmarcha.Backend.Types;
+using Enmarcha.Backend.Types.Arrivals;
+using Microsoft.Extensions.Options;
+
+namespace Enmarcha.Backend.Services.Processors;
+
+public class VitrasaRealTimeProcessor : AbstractRealTimeProcessor
+{
+ private readonly VigoTransitApiClient _api;
+ private readonly FeedService _feedService;
+ private readonly ILogger<VitrasaRealTimeProcessor> _logger;
+ private readonly ShapeTraversalService _shapeService;
+ private readonly AppConfiguration _configuration;
+
+ public VitrasaRealTimeProcessor(
+ HttpClient http,
+ FeedService feedService,
+ ILogger<VitrasaRealTimeProcessor> logger,
+ ShapeTraversalService shapeService,
+ IOptions<AppConfiguration> options)
+ {
+ _api = new VigoTransitApiClient(http);
+ _feedService = feedService;
+ _logger = logger;
+ _shapeService = shapeService;
+ _configuration = options.Value;
+ }
+
+ public override async Task ProcessAsync(ArrivalsContext context)
+ {
+ if (!context.StopId.StartsWith("vitrasa:")) return;
+
+ var normalizedCode = _feedService.NormalizeStopCode("vitrasa", context.StopCode);
+ if (!int.TryParse(normalizedCode, out var numericStopId)) return;
+
+ try
+ {
+ // Load schedule
+ var todayDate = context.NowLocal.Date.ToString("yyyy-MM-dd");
+
+ Epsg25829? stopLocation = null;
+ if (context.StopLocation != null)
+ {
+ stopLocation = _shapeService.TransformToEpsg25829(context.StopLocation.Latitude, context.StopLocation.Longitude);
+ }
+
+ var realtime = await _api.GetStopEstimates(numericStopId);
+ var estimates = realtime.Estimates
+ .Where(e => !string.IsNullOrWhiteSpace(e.Route) && !e.Route.Trim().EndsWith('*'))
+ .ToList();
+
+ var usedTripIds = new HashSet<string>();
+ var newArrivals = new List<Arrival>();
+
+ foreach (var estimate in estimates)
+ {
+ var estimateRouteNormalized = _feedService.NormalizeRouteNameForMatching(estimate.Route);
+
+ var bestMatch = context.Arrivals
+ .Where(a => !usedTripIds.Contains(a.TripId))
+ .Where(a => a.Route.ShortName.Trim() == estimate.Line.Trim())
+ .Select(a =>
+ {
+ var arrivalRouteNormalized = _feedService.NormalizeRouteNameForMatching(a.Headsign.Destination);
+ string? arrivalLongNameNormalized = null;
+ string? arrivalLastStopNormalized = null;
+
+ if (a.RawOtpTrip is ArrivalsAtStopResponse.Arrival otpArrival)
+ {
+ if (otpArrival.Trip.Route.LongName != null)
+ {
+ arrivalLongNameNormalized = _feedService.NormalizeRouteNameForMatching(otpArrival.Trip.Route.LongName);
+ }
+
+ var lastStop = otpArrival.Trip.Stoptimes.LastOrDefault();
+ if (lastStop != null)
+ {
+ arrivalLastStopNormalized = _feedService.NormalizeRouteNameForMatching(lastStop.Stop.Name);
+ }
+ }
+
+ // Strict route matching logic ported from VitrasaTransitProvider
+ // Check against Headsign, LongName, and LastStop
+ var routeMatch = IsRouteMatch(estimateRouteNormalized, arrivalRouteNormalized);
+
+ if (!routeMatch && arrivalLongNameNormalized != null)
+ {
+ routeMatch = IsRouteMatch(estimateRouteNormalized, arrivalLongNameNormalized);
+ }
+
+ if (!routeMatch && arrivalLastStopNormalized != null)
+ {
+ routeMatch = IsRouteMatch(estimateRouteNormalized, arrivalLastStopNormalized);
+ }
+
+ return new
+ {
+ Arrival = a,
+ TimeDiff = estimate.Minutes - a.Estimate.Minutes, // RealTime - Schedule
+ RouteMatch = routeMatch
+ };
+ })
+ .Where(x => x.RouteMatch) // Strict route matching
+ .Where(x => x.TimeDiff >= -7 && x.TimeDiff <= 75) // Allow 7m early (RealTime < Schedule) or 75m late (RealTime > Schedule)
+ .OrderBy(x => Math.Abs(x.TimeDiff)) // Best time fit
+ .FirstOrDefault();
+
+ if (bestMatch != null)
+ {
+ var arrival = bestMatch.Arrival;
+
+ var scheduledMinutes = arrival.Estimate.Minutes;
+ arrival.Estimate.Minutes = estimate.Minutes;
+ arrival.Estimate.Precision = ArrivalPrecision.Confident;
+
+ // Calculate delay badge
+ var delayMinutes = estimate.Minutes - scheduledMinutes;
+ arrival.Delay = new DelayBadge { Minutes = delayMinutes };
+
+ // Prefer real-time headsign if available and different
+ if (!string.IsNullOrWhiteSpace(estimate.Route))
+ {
+ arrival.Headsign.Destination = estimate.Route;
+ }
+
+ // Calculate position
+ if (stopLocation != null)
+ {
+ Position? currentPosition = null;
+ int? stopShapeIndex = null;
+
+ if (arrival.RawOtpTrip is ArrivalsAtStopResponse.Arrival otpArrival &&
+ otpArrival.Trip.Geometry?.Points != null)
+ {
+ var decodedPoints = Decode(otpArrival.Trip.Geometry.Points)
+ .Select(p => new Position { Latitude = p.Lat, Longitude = p.Lon })
+ .ToList();
+
+ var shape = _shapeService.CreateShapeFromWgs84(decodedPoints);
+
+ // Ensure meters is positive
+ var meters = Math.Max(0, estimate.Meters);
+ var result = _shapeService.GetBusPosition(shape, stopLocation, meters);
+
+ currentPosition = result.BusPosition;
+ stopShapeIndex = result.StopIndex;
+
+ if (currentPosition != null)
+ {
+ _logger.LogInformation("Calculated position from OTP geometry for trip {TripId}: {Lat}, {Lon}", arrival.TripId, currentPosition.Latitude, currentPosition.Longitude);
+ }
+
+ // Populate Shape GeoJSON
+ if (!context.IsReduced && currentPosition != null)
+ {
+ var features = new List<object>();
+ features.Add(new
+ {
+ type = "Feature",
+ geometry = new
+ {
+ type = "LineString",
+ coordinates = decodedPoints.Select(p => new[] { p.Longitude, p.Latitude }).ToList()
+ },
+ properties = new { type = "route" }
+ });
+
+ // Add stops if available
+ if (otpArrival.Trip.Stoptimes != null)
+ {
+ foreach (var stoptime in otpArrival.Trip.Stoptimes)
+ {
+ features.Add(new
+ {
+ type = "Feature",
+ geometry = new
+ {
+ type = "Point",
+ coordinates = new[] { stoptime.Stop.Lon, stoptime.Stop.Lat }
+ },
+ properties = new
+ {
+ type = "stop",
+ name = stoptime.Stop.Name
+ }
+ });
+ }
+ }
+
+ arrival.Shape = new
+ {
+ type = "FeatureCollection",
+ features = features
+ };
+ }
+ }
+
+ if (currentPosition != null)
+ {
+ arrival.CurrentPosition = currentPosition;
+ arrival.StopShapeIndex = stopShapeIndex;
+ }
+ }
+
+ usedTripIds.Add(arrival.TripId);
+ }
+ else
+ {
+ _logger.LogInformation("Adding unmatched Vitrasa real-time arrival for line {Line} in {Minutes}m",
+ estimate.Line, estimate.Minutes);
+
+ // Try to find a "template" arrival with the same line to copy colors from
+ var template = context.Arrivals
+ .FirstOrDefault(a => a.Route.ShortName.Trim() == estimate.Line.Trim());
+
+ newArrivals.Add(new Arrival
+ {
+ TripId = $"vitrasa:rt:{estimate.Line}:{estimate.Route}:{estimate.Minutes}",
+ Route = new RouteInfo
+ {
+ GtfsId = $"vitrasa:{estimate.Line}",
+ ShortName = estimate.Line,
+ Colour = template?.Route.Colour ?? "FFFFFF",
+ TextColour = template?.Route.TextColour ?? "000000",
+ },
+ Headsign = new HeadsignInfo
+ {
+ Destination = estimate.Route
+ },
+ Estimate = new ArrivalDetails
+ {
+ Minutes = estimate.Minutes,
+ Precision = ArrivalPrecision.Confident
+ }
+ });
+ }
+ }
+
+ context.Arrivals.AddRange(newArrivals);
+ }
+ catch (Exception ex)
+ {
+ _logger.LogError(ex, "Error fetching Vitrasa real-time data for stop {StopId}", context.StopId);
+ }
+ }
+
+ private static bool IsRouteMatch(string a, string b)
+ {
+ return a == b || a.Contains(b) || b.Contains(a);
+ }
+}