feat: add governed DSAR workflow

src/govoplan_core/celery_app.py

@@ -18,7 +18,9 @@ from celery.signals import (
 
 from govoplan_core.core.campaigns import (
     CAPABILITY_CAMPAIGNS_DELIVERY_TASKS,
+    CAPABILITY_CAMPAIGNS_SCHEDULES,
     CampaignDeliveryTaskProvider,
+    CampaignScheduleProvider,
 )
 from govoplan_core.core.calendar import (
     CAPABILITY_CALENDAR_OUTBOX,
@@ -100,6 +102,7 @@ celery.conf.update(
     task_routes={
         "govoplan.campaigns.send_email": {"queue": "send_email"},
         "govoplan.campaigns.append_sent": {"queue": "append_sent"},
+        "govoplan.campaigns.dispatch_schedules": {"queue": "default"},
         "govoplan.notifications.deliver": {"queue": "notifications"},
         "govoplan.notifications.deliver_pending": {"queue": "notifications"},
         "govoplan.mail.dispatch_outbox": {"queue": "mail"},
@@ -132,6 +135,11 @@ celery.conf.update(
             "schedule": 60.0,
             "args": (None, 100),
         },
+        "campaign-schedules-every-minute": {
+            "task": "govoplan.campaigns.dispatch_schedules",
+            "schedule": 60.0,
+            "args": (None, 50),
+        },
         "mail-outbox-every-five-seconds": {
             "task": "govoplan.mail.dispatch_outbox",
             "schedule": 5.0,
@@ -555,6 +563,18 @@ def _campaign_delivery_tasks(
     return capability
 
 
+def _campaign_schedules(
+    registry: PlatformRegistry | None = None,
+) -> CampaignScheduleProvider | None:
+    registry = registry or _platform_registry()
+    if not registry.has_capability(CAPABILITY_CAMPAIGNS_SCHEDULES):
+        return None
+    capability = registry.require_capability(CAPABILITY_CAMPAIGNS_SCHEDULES)
+    if not isinstance(capability, CampaignScheduleProvider):
+        raise RuntimeError("Campaign schedule capability is invalid")
+    return capability
+
+
 def _notification_dispatch(
     registry: PlatformRegistry | None = None,
 ) -> NotificationDispatchProvider:
@@ -699,6 +719,52 @@ def _idm_assignment_lifecycle(
     return capability
 
 
+@celery.task(
+    name="govoplan.campaigns.dispatch_schedules",
+    bind=True,
+    max_retries=0,
+)
+def dispatch_campaign_schedules(
+    self,
+    tenant_id: str | None = None,
+    limit: int = 50,
+):
+    """Prepare due campaign drafts; delivery always remains a separate action."""
+
+    from govoplan_core.db.session import get_database
+
+    with get_database().SessionLocal() as session:
+        registry = _platform_registry()
+        defaults = {
+            "selected": 0,
+            "prepared": 0,
+            "failed": 0,
+            "completed": 0,
+            "coalesced": 0,
+            "campaign_ids": [],
+            "operator_actions": [],
+        }
+        if not registry.has_capability(CAPABILITY_CAMPAIGNS_SCHEDULES):
+            return defaults
+        result = _run_tenant_worker_batches(
+            registry,
+            session,
+            capability_name=CAPABILITY_CAMPAIGNS_SCHEDULES,
+            tenant_id=tenant_id,
+            operation=lambda effective_tenant_id: _campaign_schedules(
+                registry
+            ).dispatch_due(  # type: ignore[union-attr]
+                session,
+                tenant_id=effective_tenant_id,
+                limit=limit,
+            ),
+            defaults=defaults,
+            work_state="new",
+        )
+        session.commit()
+        return result
+
+
 @celery.task(name="govoplan.campaigns.send_email", bind=True, max_retries=0)
 def send_email(self, job_id: str):
     """Send one explicitly queued campaign job.