Initial deploy setup

apps/jobs/services/lifecycle.py

@@ -0,0 +1,30 @@
+from __future__ import annotations
+
+from datetime import timedelta
+
+from django.db.models import Q
+from django.utils import timezone
+
+from apps.jobs.models import JobPosting
+
+
+def update_lifecycle(
+    *, uncertain_after_days: int = 3, removed_after_days: int = 14
+) -> dict[str, int]:
+    now = timezone.now()
+    expired = JobPosting.objects.filter(
+        status__in=[JobPosting.Status.ACTIVE, JobPosting.Status.UNCERTAIN],
+        valid_through__lt=now,
+    ).update(status=JobPosting.Status.EXPIRED)
+    uncertain_cutoff = now - timedelta(days=uncertain_after_days)
+    uncertain = JobPosting.objects.filter(
+        status=JobPosting.Status.ACTIVE,
+        last_seen__lt=uncertain_cutoff,
+        valid_through__isnull=True,
+    ).update(status=JobPosting.Status.UNCERTAIN)
+    removed_cutoff = now - timedelta(days=removed_after_days)
+    removed = JobPosting.objects.filter(
+        Q(status=JobPosting.Status.UNCERTAIN),
+        last_seen__lt=removed_cutoff,
+    ).update(status=JobPosting.Status.REMOVED)
+    return {"expired": expired, "uncertain": uncertain, "removed": removed}