Query CDSE catalogue for single point geometry

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Removed
 
 ### Fixed
+Fixed bug where `s1_area_per_orbitstate_vvvh` failed for FeatureCollections containing a single point
 
 ## [0.2.0] - 2024-10-10
 

src/openeo_gfmap/utils/catalogue.py

@@ -8,7 +8,7 @@
 from pyproj.crs import CRS
 from rasterio.warp import transform_bounds
 from requests import adapters
-from shapely.geometry import box, shape
+from shapely.geometry import Point, box, shape
 from shapely.ops import unary_union
 
 from openeo_gfmap import (
@@ -204,8 +204,14 @@ def s1_area_per_orbitstate_vvvh(
         shapely_geometries = [
             shape(feature["geometry"]) for feature in spatial_extent["features"]
         ]
-        geometry = unary_union(shapely_geometries)
-        bounds = geometry.bounds
+        if len(shapely_geometries) == 1 and isinstance(shapely_geometries[0], Point):
+            point = shapely_geometries[0]
+            buffer_size = 0.0001
+            buffered_geometry = point.buffer(buffer_size)
+            bounds = buffered_geometry.bounds
+        else:
+            geometry = unary_union(shapely_geometries)
+            bounds = geometry.bounds
         epsg = 4326
     elif isinstance(spatial_extent, BoundingBoxExtent):
         bounds = [