feat: update split-by-square to avoid creating tasks without any feat…

…ures in it

src/backend/app/projects/project_crud.py

@@ -398,7 +398,11 @@ async def create_tasks_from_geojson(
         raise HTTPException(e) from e
 
 
-async def preview_split_by_square(boundary: str, meters: int):
+async def preview_split_by_square(
+    boundary: str,
+    meters: int,
+    extract_geojson: Optional[FeatureCollection] = None,
+):
     """Preview split by square for a project boundary.
 
     Use a lambda function to remove the "z" dimension from each
@@ -409,6 +413,7 @@ async def preview_split_by_square(boundary: str, meters: int):
     return await run_in_threadpool(
         lambda: split_by_square(
             boundary,
+            osm_extract=extract_geojson,
             meters=meters,
         )
     )

src/backend/app/projects/project_routes.py

@@ -801,7 +801,9 @@ async def get_categories(current_user: AuthUser = Depends(login_required)):
 
 @router.post("/preview-split-by-square/")
 async def preview_split_by_square(
-    project_geojson: UploadFile = File(...), dimension: int = Form(100)
+    project_geojson: UploadFile = File(...),
+    extract_geojson: UploadFile = File(None),
+    dimension: int = Form(100),
 ):
     """Preview splitting by square.
 
@@ -820,9 +822,18 @@ async def preview_split_by_square(
 
     # Validatiing Coordinate Reference System
     await check_crs(boundary)
+    parsed_extract = None
+    if extract_geojson:
+        geojson_data = await extract_geojson.read()
+        parsed_extract = parse_and_filter_geojson(geojson_data, filter=False)
+        if parsed_extract:
+            await check_crs(parsed_extract)
+        else:
+            log.warning("Parsed geojson file contained no geometries")
 
-    result = await project_crud.preview_split_by_square(boundary, dimension)
-    return result
+    return await project_crud.preview_split_by_square(
+        boundary, dimension, parsed_extract
+    )
 
 
 @router.post("/generate-data-extract/")

src/frontend/src/components/createnewproject/SplitTasks.tsx

@@ -171,6 +171,7 @@ const SplitTasks = ({ flag, geojsonFile, setGeojsonFile, customDataExtractUpload
       dispatch(
         GetDividedTaskFromGeojson(`${import.meta.env.VITE_API_URL}/projects/preview-split-by-square/`, {
           geojson: drawnGeojsonFile,
+          extract_geojson: formValues.dataExtractWays === 'osm_data_extract' ? null : dataExtractFile,
           dimension: formValues?.dimension,
         }),
       );