Harden V1 demo workflow smoke

backend/app/services/demo_workflow_service.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import json
+import os
 from datetime import datetime, timezone
 from pathlib import Path
 from uuid import UUID, uuid4
@@ -30,6 +31,16 @@ class DemoWorkflowService:
 
     @staticmethod
     def _fixture_path(filename: str) -> Path:
+        roots: list[Path] = []
+        if os.getenv("GEOINTEL_FIXTURES_ROOT"):
+            roots.append(Path(os.environ["GEOINTEL_FIXTURES_ROOT"]))
+        roots.extend(parent / "fixtures" / "golden" for parent in Path(__file__).resolve().parents)
+        roots.append(Path("/app/fixtures/golden"))
+
+        for root in roots:
+            path = root / filename
+            if path.exists():
+                return path
         return DemoWorkflowService._repo_root() / "fixtures" / "golden" / filename
 
     @staticmethod
@@ -194,6 +205,8 @@ class DemoWorkflowService:
     @staticmethod
     def seed(db: Session) -> DemoWorkflowResponse:
         existing = DemoWorkflowService._find_existing_project(db)
+        reference_payload, reference_raw = DemoWorkflowService._load_fixture("reference_buildings.geojson")
+        candidate_payload, candidate_raw = DemoWorkflowService._load_fixture("predicted_buildings.geojson")
         if existing:
             area = db.query(Area).filter(Area.project_id == existing.id).order_by(Area.created_at.asc()).first()
             reference = (
@@ -229,51 +242,59 @@ class DemoWorkflowService:
                     message="Demo workflow already exists.",
                     created=False,
                 )
+            project = existing
+            created = True
+        else:
+            project = Project(
+                id=uuid4(),
+                name=DemoWorkflowService.PROJECT_NAME,
+                description="Offline fixture workflow: reference buildings, predicted buildings and persisted QA metrics.",
+                region="Kempen",
+                status="active",
+            )
+            db.add(project)
+            db.commit()
+            db.refresh(project)
+            area = None
+            reference = None
+            candidate = None
+            quality_check = None
+            created = True
 
-        project = Project(
-            id=uuid4(),
-            name=DemoWorkflowService.PROJECT_NAME,
-            description="Offline fixture workflow: reference buildings, predicted buildings and persisted QA metrics.",
-            region="Kempen",
-            status="active",
-        )
-        db.add(project)
-        db.commit()
-        db.refresh(project)
-
-        area = DemoWorkflowService._create_area(db, project.id)
-        reference_payload, reference_raw = DemoWorkflowService._load_fixture("reference_buildings.geojson")
-        candidate_payload, candidate_raw = DemoWorkflowService._load_fixture("predicted_buildings.geojson")
-
-        reference = DemoWorkflowService._create_dataset(
-            db=db,
-            project_id=project.id,
-            area_id=area.id,
-            filename=DemoWorkflowService.REFERENCE_FILENAME,
-            payload=reference_payload,
-            raw=reference_raw,
-            role="reference",
-            source_name="fixture",
-            reference_layer_name="buildings",
-        )
-        candidate = DemoWorkflowService._create_dataset(
-            db=db,
-            project_id=project.id,
-            area_id=area.id,
-            filename=DemoWorkflowService.CANDIDATE_FILENAME,
-            payload=candidate_payload,
-            raw=candidate_raw,
-            role="source",
-            source_name="fixture",
-            reference_layer_name=None,
-        )
-        quality_check = DemoWorkflowService._persist_qa(
-            db=db,
-            project_id=project.id,
-            candidate_dataset_id=candidate.id,
-            reference_dataset_id=reference.id,
-            area_id=area.id,
-        )
+        if not area:
+            area = DemoWorkflowService._create_area(db, project.id)
+        if not reference:
+            reference = DemoWorkflowService._create_dataset(
+                db=db,
+                project_id=project.id,
+                area_id=area.id,
+                filename=DemoWorkflowService.REFERENCE_FILENAME,
+                payload=reference_payload,
+                raw=reference_raw,
+                role="reference",
+                source_name="fixture",
+                reference_layer_name="buildings",
+            )
+        if not candidate:
+            candidate = DemoWorkflowService._create_dataset(
+                db=db,
+                project_id=project.id,
+                area_id=area.id,
+                filename=DemoWorkflowService.CANDIDATE_FILENAME,
+                payload=candidate_payload,
+                raw=candidate_raw,
+                role="source",
+                source_name="fixture",
+                reference_layer_name=None,
+            )
+        if not quality_check:
+            quality_check = DemoWorkflowService._persist_qa(
+                db=db,
+                project_id=project.id,
+                candidate_dataset_id=candidate.id,
+                reference_dataset_id=reference.id,
+                area_id=area.id,
+            )
 
         return DemoWorkflowResponse(
             project_id=project.id,
@@ -284,5 +305,5 @@ class DemoWorkflowService:
             metric_count=6,
             status="ready",
             message="Demo workflow seeded from explicit local fixtures.",
-            created=True,
+            created=created,
         )