added land

api/app/services/landcover.py

@@ -1,7 +1,35 @@
-from app.models.landcover import LandcoverPathRequest, LandcoverPathResponse
+from app.config import get_settings
+from app.core.geo import GeoPoint, sample_path
+from app.core.landcover import LandcoverNotConfiguredError, landcover_path
+from app.models.landcover import LandcoverPathRequest, LandcoverPathResponse, LandcoverSegment
 
 
 def path_landcover(request: LandcoverPathRequest) -> LandcoverPathResponse:
-    raise NotImplementedError(
-        "Landcover and canopy raster sampling is implemented in a later stage"
+    settings = get_settings()
+    points = sample_path(
+        GeoPoint(lat=request.start.lat, lon=request.start.lon),
+        GeoPoint(lat=request.end.lat, lon=request.end.lon),
+        request.samples,
+    )
+    try:
+        result = landcover_path(
+            points,
+            landcover_path_dir=settings.landcover_path,
+            canopy_path_dir=settings.canopy_path,
+        )
+    except LandcoverNotConfiguredError as exc:
+        raise NotImplementedError(str(exc)) from exc
+
+    return LandcoverPathResponse(
+        segments=[
+            LandcoverSegment(
+                from_m=segment.from_m,
+                to_m=segment.to_m,
+                class_name=segment.class_name,
+                forest_type=segment.forest_type,
+                canopy_height_m=segment.canopy_height_m,
+            )
+            for segment in result.segments
+        ],
+        vegetation_depth_m=result.vegetation_depth_m,
     )