Normalize workplan IDs and activate parents on task start

api/services/lifecycle.py

@@ -0,0 +1,50 @@
+from __future__ import annotations
+
+from typing import Any
+
+from api.workplan_status import normalize_workstream_status
+
+
+TASK_STARTED_STATUS = "in_progress"
+TASK_NOT_STARTED_STATUS = "todo"
+PARENT_ACTIVATION_STATUSES = {"proposed", "ready", "backlog"}
+
+
+def status_value(status: Any) -> str:
+    if hasattr(status, "value"):
+        status = status.value
+    return str(status or "").strip().lower()
+
+
+def should_activate_parent_for_task_start(
+    *,
+    previous_task_status: Any,
+    new_task_status: Any,
+    parent_workstream_status: Any,
+) -> bool:
+    """Return whether a task start should move its parent to active."""
+    return (
+        status_value(previous_task_status) == TASK_NOT_STARTED_STATUS
+        and status_value(new_task_status) == TASK_STARTED_STATUS
+        and normalize_workstream_status(parent_workstream_status)
+        in PARENT_ACTIVATION_STATUSES
+    )
+
+
+def activate_parent_for_task_start(
+    *,
+    previous_task_status: Any,
+    new_task_status: Any,
+    parent_workstream: Any,
+) -> bool:
+    """Activate a planning-state parent workstream when real task work starts."""
+    if parent_workstream is None:
+        return False
+    if not should_activate_parent_for_task_start(
+        previous_task_status=previous_task_status,
+        new_task_status=new_task_status,
+        parent_workstream_status=getattr(parent_workstream, "status", None),
+    ):
+        return False
+    parent_workstream.status = "active"
+    return True