Constrain selections to active work areas

backend/app/services/temporal_analysis_service.py

@@ -111,6 +111,13 @@ class TemporalAnalysisService:
 
         bbox = payload.bbox.model_dump()
         selection_area = TemporalAnalysisService._get_selection_area(db, project_id, payload.area_id)
+        selection_geometry = None
+        selection_covers_full_area = False
+        if selection_area is not None:
+            selection_geometry, selection_covers_full_area = VectorFeatureService.constrain_bbox_to_area(
+                bbox,
+                selection_area.geometry,
+            )
         summaries: dict[UUID, dict[str, Any]] = {}
 
         def summarize(dataset: Dataset) -> dict[str, Any]:
@@ -119,10 +126,13 @@ class TemporalAnalysisService:
                 return cached
             kwargs: dict[str, Any] = {"dataset": dataset, "bbox": bbox}
             if selection_area is not None:
-                kwargs["selection_geometry"] = selection_area.geometry
-                kwargs["full_dataset_area"] = VectorFeatureService.can_use_full_area_fast_path(
-                    dataset,
-                    selection_area.id,
+                kwargs["selection_geometry"] = selection_geometry
+                kwargs["full_dataset_area"] = (
+                    selection_covers_full_area
+                    and VectorFeatureService.can_use_full_area_fast_path(
+                        dataset,
+                        selection_area.id,
+                    )
                 )
             summary = VectorFeatureService.summarize_features_by_bbox(db, **kwargs)
             summaries[dataset.id] = summary
@@ -154,14 +164,16 @@ class TemporalAnalysisService:
             later=later,
             bbox=bbox,
             preview_limit=payload.preview_limit,
-            selection_geometry=selection_area.geometry if selection_area is not None else None,
+            selection_geometry=selection_geometry,
             earlier_full_dataset_area=(
-                VectorFeatureService.can_use_full_area_fast_path(earlier, selection_area.id)
+                selection_covers_full_area
+                and VectorFeatureService.can_use_full_area_fast_path(earlier, selection_area.id)
                 if selection_area is not None
                 else False
             ),
             later_full_dataset_area=(
-                VectorFeatureService.can_use_full_area_fast_path(later, selection_area.id)
+                selection_covers_full_area
+                and VectorFeatureService.can_use_full_area_fast_path(later, selection_area.id)
                 if selection_area is not None
                 else False
             ),