Implement basic real time information for Renfe

1 files changed, 66 insertions, 0 deletions

diff --git a/src/Enmarcha.Backend/Services/Processors/VitrasaUsageProcessor.cs b/src/Enmarcha.Backend/Services/Processors/VitrasaUsageProcessor.cs
new file mode 100644
index 0000000..a2f90d3
--- /dev/null
+++ b/src/Enmarcha.Backend/Services/Processors/VitrasaUsageProcessor.cs
@@ -0,0 +1,66 @@
+using System.Text.Json;
+using Enmarcha.Backend.Types.Arrivals;
+using Microsoft.Extensions.Caching.Memory;
+
+namespace Enmarcha.Backend.Services.Processors;
+
+public class VitrasaUsageProcessor : IArrivalsProcessor
+{
+    private readonly HttpClient _httpClient;
+    private readonly IMemoryCache _cache;
+    private readonly ILogger<VitrasaUsageProcessor> _logger;
+    private readonly FeedService _feedService;
+
+    public VitrasaUsageProcessor(
+        HttpClient httpClient,
+        IMemoryCache cache,
+        ILogger<VitrasaUsageProcessor> logger,
+        FeedService feedService)
+    {
+        _httpClient = httpClient;
+        _cache = cache;
+        _logger = logger;
+        _feedService = feedService;
+    }
+
+    public async Task ProcessAsync(ArrivalsContext context)
+    {
+        if (!context.StopId.StartsWith("vitrasa:") || context.IsReduced || context.IsNano) return;
+
+        var normalizedCode = _feedService.NormalizeStopCode("vitrasa", context.StopCode);
+
+        var cacheKey = $"vigo_usage_{normalizedCode}";
+        if (_cache.TryGetValue(cacheKey, out List<BusStopUsagePoint>? cachedUsage))
+        {
+            context.Usage = cachedUsage;
+            return;
+        }
+
+        try
+        {
+            using var activity = Telemetry.Source.StartActivity("FetchVigoUsage");
+            var url = $"https://datos.vigo.org/vci_api_app/api2.jsp?tipo=TRANSPORTE_PARADA_HORAS_USO&parada={normalizedCode}";
+            var response = await _httpClient.GetAsync(url);
+
+            if (response.IsSuccessStatusCode)
+            {
+                var json = await response.Content.ReadAsStringAsync();
+                var usage = JsonSerializer.Deserialize<List<BusStopUsagePoint>>(json);
+
+                if (usage != null)
+                {
+                    _cache.Set(cacheKey, usage, TimeSpan.FromDays(7));
+                    context.Usage = usage;
+                }
+            }
+            else
+            {
+                _logger.LogWarning("Failed to fetch usage data for stop {StopCode}, status: {Status}", normalizedCode, response.StatusCode);
+            }
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Error fetching usage data for Vigo stop {StopCode}", normalizedCode);
+        }
+    }
+}