Prepare GeoIntel for public release

backend/app/services/demo_workflow_service.py

@@ -10,6 +10,12 @@ from uuid import UUID, uuid4
 from geoalchemy2.shape import from_shape
 from sqlalchemy.orm import Session
 
+from app.core.errors import AppError
+from app.core.public_demo import (
+    PUBLIC_DEMO_PROJECT_ID,
+    PUBLIC_DEMO_PROJECT_MARKER,
+    PUBLIC_DEMO_PROJECT_NAME,
+)
 from app.models import Area, Dataset, DatasetVersion, Metric, Project, QualityCheck
 from app.schemas.demo import DemoWorkflowResponse
 from app.services.derived_dataset_governance_service import DerivedDatasetGovernanceService
@@ -23,7 +29,8 @@ from app.utils.geometry import area_m2, geometry_bbox_polygon, normalize_to_mult
 
 
 class DemoWorkflowService:
-    PROJECT_NAME = "GeoIntel Demo - Building QA"
+    PROJECT_ID = PUBLIC_DEMO_PROJECT_ID
+    PROJECT_NAME = PUBLIC_DEMO_PROJECT_NAME
     AREA_NAME = "Demo AOI - Geel buildings"
     REFERENCE_FILENAME = "demo_reference_buildings.geojson"
     CANDIDATE_FILENAME = "demo_predicted_buildings.geojson"
@@ -91,17 +98,19 @@ class DemoWorkflowService:
 
     @staticmethod
     def _find_existing_project(db: Session) -> Project | None:
-        projects = (
-            db.query(Project)
-            .filter(Project.name == DemoWorkflowService.PROJECT_NAME)
-            .filter(Project.status != "deleted")
-            .order_by(Project.created_at.asc())
-            .all()
-        )
-        for project in projects:
-            if DemoWorkflowService._has_complete_demo_state(db, project.id):
-                return project
-        return projects[0] if projects else None
+        project = db.get(Project, DemoWorkflowService.PROJECT_ID)
+        if project is None:
+            return None
+        if (
+            project.name != DemoWorkflowService.PROJECT_NAME
+            or project.description != PUBLIC_DEMO_PROJECT_MARKER
+        ):
+            raise AppError(
+                code="PUBLIC_DEMO_IDENTITY_CONFLICT",
+                message="The reserved public-demo project identity is already in use.",
+                status_code=409,
+            )
+        return project
 
     @staticmethod
     def _activate_explicit_demo_project(db: Session, project: Project | None) -> Project | None:
@@ -487,9 +496,9 @@ class DemoWorkflowService:
             created = True
         else:
             project = Project(
-                id=uuid4(),
+                id=DemoWorkflowService.PROJECT_ID,
                 name=DemoWorkflowService.PROJECT_NAME,
-                description="Offline fixture workflow: reference buildings, predicted buildings and persisted QA metrics.",
+                description=PUBLIC_DEMO_PROJECT_MARKER,
                 region="Kempen",
                 status="active",
             )