From a1f0518d0cd123a791adde64f4f11bd8e44276c7 Mon Sep 17 00:00:00 2001
From: ivar <i@oiee.no>
Date: Mon, 20 Oct 2025 00:26:34 +0200
Subject: Initial commit

---
 api/WhatApi/Endpoints/GetPlacesEndpoint.cs | 57 ++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 api/WhatApi/Endpoints/GetPlacesEndpoint.cs

(limited to 'api/WhatApi/Endpoints/GetPlacesEndpoint.cs')

diff --git a/api/WhatApi/Endpoints/GetPlacesEndpoint.cs b/api/WhatApi/Endpoints/GetPlacesEndpoint.cs
new file mode 100644
index 0000000..5630229
--- /dev/null
+++ b/api/WhatApi/Endpoints/GetPlacesEndpoint.cs
@@ -0,0 +1,57 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using NetTopologySuite;
+using NetTopologySuite.Features;
+using NetTopologySuite.Geometries;
+using WhatApi.Tables;
+
+namespace WhatApi.Endpoints;
+
+public class GetPlacesEndpoint(Database db) : BaseEndpoint
+{
+    [HttpGet("~/places")]
+    public async Task<ActionResult> HandleAsync(string w, string s, string e, string n, CancellationToken ct = default) {
+        var north = double.Parse(n);
+        var east = double.Parse(e);
+        var south = double.Parse(s);
+        var west = double.Parse(w);
+
+        IQueryable<Place> resultingQuery;
+
+        if (west > east) {
+            resultingQuery = db.Places
+                .FromSqlInterpolated($"""
+                                              SELECT * FROM "Place"
+                                              WHERE ST_Intersects(
+                                                  "Location",
+                                                  ST_MakeEnvelope({west}, {south}, 180, {north}, {Constants.Wgs84SpatialReferenceId}) || ST_MakeEnvelope(-180, {south}, {east}, {north}, {Constants.Wgs84SpatialReferenceId})
+                                              )
+                                      """);
+        } else {
+            resultingQuery = db.Places
+                .FromSqlInterpolated($"""
+                                              SELECT * FROM "Place"
+                                              WHERE ST_Intersects(
+                                                  "Location",
+                                                  ST_MakeEnvelope({west}, {south}, {east}, {north}, {Constants.Wgs84SpatialReferenceId})
+                                              )
+                                      """);
+        }
+
+        var gf = NtsGeometryServices.Instance.CreateGeometryFactory(srid: Constants.Wgs84SpatialReferenceId);
+        var fc = new FeatureCollection();
+
+        await foreach (var p in resultingQuery.AsAsyncEnumerable().WithCancellation(ct)) {
+            var point = gf.CreatePoint(new Coordinate(p.Location.X, p.Location.Y));
+            fc.Add(new Feature(point, new AttributesTable {
+                {
+                    "id", p.Id
+                }, {
+                    "cid", p.ContentId
+                }
+            }));
+        }
+
+        return Ok(fc);
+    }
+}
\ No newline at end of file
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