From 91f7d7dd5a4ca8453cfdbc9a3beeb216b6638ef7 Mon Sep 17 00:00:00 2001
From: Ariel Costas Guerrero <ariel@costas.dev>
Date: Mon, 22 Dec 2025 14:13:45 +0100
Subject: Implement fetching scheduled arrivals for stop

---
 .../Controllers/ArrivalsController.cs              | 52 ++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 src/Costasdev.Busurbano.Backend/Controllers/ArrivalsController.cs

(limited to 'src/Costasdev.Busurbano.Backend/Controllers/ArrivalsController.cs')

diff --git a/src/Costasdev.Busurbano.Backend/Controllers/ArrivalsController.cs b/src/Costasdev.Busurbano.Backend/Controllers/ArrivalsController.cs
new file mode 100644
index 0000000..eb81784
--- /dev/null
+++ b/src/Costasdev.Busurbano.Backend/Controllers/ArrivalsController.cs
@@ -0,0 +1,52 @@
+using Costasdev.Busurbano.Backend.GraphClient;
+using Costasdev.Busurbano.Backend.GraphClient.App;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Caching.Memory;
+
+namespace Costasdev.Busurbano.Backend.Controllers;
+
+[ApiController]
+[Route("api")]
+public class ArrivalsController : ControllerBase
+{
+    private readonly ILogger<ArrivalsController> _logger;
+    private readonly IMemoryCache _cache;
+    private readonly HttpClient _httpClient;
+
+    public ArrivalsController(
+        ILogger<ArrivalsController> logger,
+        IMemoryCache cache,
+        HttpClient httpClient
+    )
+    {
+        _logger = logger;
+        _cache = cache;
+        _httpClient = httpClient;
+    }
+
+    [HttpGet("arrivals")]
+    public async Task<IActionResult> GetArrivals(string id)
+    {
+        var requestContent = ArrivalsAtStopContent.Query(id);
+        var request = new HttpRequestMessage(HttpMethod.Post, "http://100.67.54.115:3957/otp/gtfs/v1");
+        request.Content = JsonContent.Create(new GraphClientRequest
+        {
+            Query = requestContent
+        });
+
+        var response = await _httpClient.SendAsync(request);
+        var responseBody = await response.Content.ReadFromJsonAsync<GraphClientResponse<ArrivalsAtStopResponse>>();
+
+        if (responseBody is not { IsSuccess: true })
+        {
+            _logger.LogError(
+                "Error fetching stop data, received {StatusCode} {ResponseBody}",
+                response.StatusCode,
+                await response.Content.ReadAsStringAsync()
+            );
+            return StatusCode(500, "Error fetching stop data");
+        }
+
+        return Ok(responseBody.Data?.Stop);
+    }
+}
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