Fix InvalidOperationException when stops have no real-time arrivals (#99)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: arielcostas <94913521+arielcostas@users.noreply.github.com>

2 files changed, 2 insertions, 5 deletions

diff --git a/src/Costasdev.Busurbano.Backend/Controllers/TrafficDataController.cs b/src/Costasdev.Busurbano.Backend/Controllers/TrafficDataController.cs
index 002d6b4..a3dc843 100644
--- a/src/Costasdev.Busurbano.Backend/Controllers/TrafficDataController.cs
+++ b/src/Costasdev.Busurbano.Backend/Controllers/TrafficDataController.cs
@@ -1,7 +1,5 @@
-using System.Globalization;
+using System.Globalization;
 using System.Text;
-using System.Text.Json;
-using Microsoft.AspNetCore.Http.HttpResults;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Caching.Memory;
 using NetTopologySuite.Features;
diff --git a/src/Costasdev.Busurbano.Backend/Controllers/VigoController.cs b/src/Costasdev.Busurbano.Backend/Controllers/VigoController.cs
index 05a3025..7cc3fcb 100644
--- a/src/Costasdev.Busurbano.Backend/Controllers/VigoController.cs
+++ b/src/Costasdev.Busurbano.Backend/Controllers/VigoController.cs
@@ -100,9 +100,8 @@ public class VigoController : ControllerBase
 
         var now = nowLocal.AddSeconds(60 - nowLocal.Second);
         // Define the scope end as the time of the last realtime arrival (no extra buffer)
-        var lastEstimateArrivalMinutes = realTimeEstimates.Max(e => e.Minutes);
         var scopeEnd = realTimeEstimates.Count > 0
-            ? now.AddMinutes(Math.Min(lastEstimateArrivalMinutes + 5, 75))
+            ? now.AddMinutes(Math.Min(realTimeEstimates.Max(e => e.Minutes) + 5, 75))
             : now.AddMinutes(60); // If no estimates, show next hour of scheduled only
 
         List<ConsolidatedCirculation> consolidatedCirculations = [];