Prefer governed orthophoto editions in source status

backend/app/services/source_freshness_service.py

@@ -4,6 +4,7 @@ from collections import defaultdict
 from dataclasses import dataclass
 from datetime import datetime, timedelta, timezone
 from pathlib import Path
+import re
 from typing import Iterable
 from uuid import UUID
 
@@ -51,6 +52,7 @@ SOURCE_POLICIES: dict[str, SourcePolicy] = {
 }
 
 DEFAULT_POLICY = SourcePolicy("Niet-geclassificeerde bron", "edition")
+_ORTHOPHOTO_EDITION = re.compile(r"^20\d{2}\.\d{2}$")
 
 
 def _as_utc(value: datetime | None) -> datetime | None:
@@ -81,10 +83,16 @@ def _latest_dataset(datasets: list[Dataset]) -> Dataset:
     )
 
 
-def _latest_source_version(policy: SourcePolicy, datasets: list[Dataset]) -> str | None:
+def _latest_source_version(source_name: str, policy: SourcePolicy, datasets: list[Dataset]) -> str | None:
     versioned = [item for item in datasets if item.source_version]
     if not versioned:
         return None
+    if source_name == "digitaal_vlaanderen_orthophoto":
+        official_editions = [
+            item for item in versioned if _ORTHOPHOTO_EDITION.fullmatch((item.source_version or "").strip())
+        ]
+        if official_editions:
+            return _latest_dataset(official_editions).source_version
     if policy.refresh_policy == "rolling_snapshot":
         named_current = [
             item
@@ -258,7 +266,7 @@ class SourceFreshnessService:
                     version_count=sum(len(versions_by_dataset.get(item.id, [])) for item in source_datasets),
                     latest_imported_at=_latest_datetime(item.imported_at for item in source_datasets),
                     latest_observed_at=_latest_datetime(item.observed_at for item in source_datasets),
-                    latest_source_version=_latest_source_version(policy, source_datasets),
+                    latest_source_version=_latest_source_version(source_name, policy, source_datasets),
                     refresh_policy=policy.refresh_policy,
                     review_interval_days=policy.review_interval_days,
                     next_review_at=next_review_at,