Add admin-only versus open service policy registry

One mapping in service_policy.py: complete_quest is open, every other
registered nestquest service is admin_only.

custom_components/nestquest/service_policy.py

@@ -0,0 +1,46 @@
+"""Explicit admin-only versus open service registry (Feature 09).
+
+One mapping, one file: every registered ``nestquest`` service name is
+either ``open`` or ``admin_only``.  The permission decorator (later
+Feature 09 tasks) reads this table; it does not take per-handler
+policy arguments.
+"""
+from __future__ import annotations
+
+from .const import (
+    DOMAIN_SERVICES,
+    SERVICE_COMPLETE_QUEST,
+    SERVICE_CREATE_PRESENCE_OVERRIDE,
+    SERVICE_CREATE_QUEST_DEFINITION,
+    SERVICE_DELETE_PRESENCE_OVERRIDE,
+    SERVICE_EXPORT_HISTORY_CSV,
+    SERVICE_MANAGE_CHILD,
+    SERVICE_REGENERATE,
+    SERVICE_SET_PRESENCE_PATTERN,
+    SERVICE_SET_QUEST_DEFINITION_ACTIVE,
+    SERVICE_UNCOMPLETE_QUEST,
+    SERVICE_UPDATE_QUEST_DEFINITION,
+)
+
+OPEN = "open"
+ADMIN_ONLY = "admin_only"
+
+SERVICE_POLICY: dict[str, str] = {
+    SERVICE_COMPLETE_QUEST: OPEN,
+    SERVICE_UNCOMPLETE_QUEST: ADMIN_ONLY,
+    SERVICE_CREATE_QUEST_DEFINITION: ADMIN_ONLY,
+    SERVICE_UPDATE_QUEST_DEFINITION: ADMIN_ONLY,
+    SERVICE_SET_QUEST_DEFINITION_ACTIVE: ADMIN_ONLY,
+    SERVICE_SET_PRESENCE_PATTERN: ADMIN_ONLY,
+    SERVICE_CREATE_PRESENCE_OVERRIDE: ADMIN_ONLY,
+    SERVICE_DELETE_PRESENCE_OVERRIDE: ADMIN_ONLY,
+    SERVICE_EXPORT_HISTORY_CSV: ADMIN_ONLY,
+    SERVICE_MANAGE_CHILD: ADMIN_ONLY,
+    SERVICE_REGENERATE: ADMIN_ONLY,
+}
+
+if frozenset(SERVICE_POLICY) != frozenset(DOMAIN_SERVICES):
+    raise RuntimeError(
+        "SERVICE_POLICY must name exactly the registered nestquest services, "
+        f"got {sorted(SERVICE_POLICY)} vs {list(DOMAIN_SERVICES)}"
+    )

tests/test_service_policy.py

@@ -0,0 +1,32 @@
+"""Tests for the Feature 09 admin-only versus open service registry."""
+from __future__ import annotations
+
+from custom_components.nestquest.const import (
+    DOMAIN_SERVICES,
+    SERVICE_COMPLETE_QUEST,
+)
+from custom_components.nestquest.service_policy import (
+    ADMIN_ONLY,
+    OPEN,
+    SERVICE_POLICY,
+)
+
+
+def test_policy_covers_exactly_the_registered_services() -> None:
+    assert frozenset(SERVICE_POLICY) == frozenset(DOMAIN_SERVICES)
+
+
+def test_only_complete_quest_is_open() -> None:
+    open_services = {
+        name for name, access in SERVICE_POLICY.items() if access == OPEN
+    }
+    assert open_services == {SERVICE_COMPLETE_QUEST}
+    assert all(
+        access == ADMIN_ONLY
+        for name, access in SERVICE_POLICY.items()
+        if name != SERVICE_COMPLETE_QUEST
+    )
+
+
+def test_policy_values_are_only_open_or_admin_only() -> None:
+    assert set(SERVICE_POLICY.values()) <= {OPEN, ADMIN_ONLY}