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using Costasdev.Busurbano.Backend.GraphClient.App;
using Costasdev.Busurbano.Backend.Types.Arrivals;
using Costasdev.VigoTransitApi;
namespace Costasdev.Busurbano.Backend.Services.Processors;
public class VitrasaRealTimeProcessor : IArrivalsProcessor
{
private readonly VigoTransitApiClient _api;
private readonly FeedService _feedService;
private readonly ILogger<VitrasaRealTimeProcessor> _logger;
public VitrasaRealTimeProcessor(HttpClient http, FeedService feedService, ILogger<VitrasaRealTimeProcessor> logger)
{
_api = new VigoTransitApiClient(http);
_feedService = feedService;
_logger = logger;
}
public 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
{
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;
_logger.LogInformation("Matched Vitrasa real-time for line {Line}: {Scheduled}m -> {RealTime}m (diff: {Diff}m)",
arrival.Route.ShortName, arrival.Estimate.Minutes, estimate.Minutes, bestMatch.TimeDiff);
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 };
}
// Prefer real-time headsign if available and different
if (!string.IsNullOrWhiteSpace(estimate.Route))
{
arrival.Headsign.Destination = estimate.Route;
}
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
{
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);
}
}
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