Fire the documented bus events from the completion service paths

quest_completed and quest_uncompleted fire on actual transitions with
documented payloads; child_day_complete fires when a completion clears
the child's day; quest_missed is defined as Feature 11's contract.
Payloads documented in the README for automation authors.

custom_components/nestquest/const.py

@@ -11,6 +11,15 @@ LOGGER = logging.getLogger(LOGGER_NAME)
 # sensors and binary sensors.
 PLATFORMS: list[str] = ["sensor", "binary_sensor"]
 
+# Home Assistant bus events (design/ENTITIES-AND-SERVICES.md §3).  The
+# panel and admin cards listen for these; Feature 10 fires completed,
+# uncompleted, and child_day_complete from the service paths, and
+# Feature 11's nightly sweep fires quest_missed.
+EVENT_QUEST_COMPLETED = "nestquest_quest_completed"
+EVENT_QUEST_UNCOMPLETED = "nestquest_quest_uncompleted"
+EVENT_QUEST_MISSED = "nestquest_quest_missed"
+EVENT_CHILD_DAY_COMPLETE = "nestquest_child_day_complete"
+
 #: Canonical domain-global service names (design/ENTITIES-AND-SERVICES.md §2
 #: plus the existing Feature 07 regenerate service).
 SERVICE_COMPLETE_QUEST = "complete_quest"

custom_components/nestquest/events.py

@@ -0,0 +1,124 @@
+"""HA bus events fired by the NestQuest service paths (Feature 10).
+
+The four documented events (design/ENTITIES-AND-SERVICES.md §3, names
+in :mod:`~.const`): ``nestquest_quest_completed`` and
+``nestquest_quest_uncompleted`` fire from the completion service
+handlers on an actual transition (a no-op re-complete or re-uncomplete
+fires nothing), and ``nestquest_child_day_complete`` fires when a
+completion clears the child's whole day (quests were owed and none
+remain — a zero-quest day can never fire it, matching the all-done
+binary sensor's rule).  ``nestquest_quest_missed`` is the documented
+contract Feature 11's nightly sweep fires; nothing here fires it.
+
+Payload policy: one dict carrying ``child_id``, ``child_name``,
+``instance_id``, ``quest_title``, the instance's ``window``/
+``due_date``/``due_time`` so automation authors can filter without a
+database lookup, and ``occurred_at`` — the event's own strict UTC
+ISO-8601 timestamp.  Completion payloads additionally carry
+``was_on_time``.  No other personal data: names and titles are the
+household's own records, and nothing beyond them leaks.
+"""
+from __future__ import annotations
+
+import datetime
+from zoneinfo import ZoneInfo
+
+from .completion import derive_state
+from .const import (
+    EVENT_CHILD_DAY_COMPLETE,
+    EVENT_QUEST_COMPLETED,
+    EVENT_QUEST_UNCOMPLETED,
+)
+from .dao_children import ChildrenDao
+from .dao_instances import CompletionEventsDao, QuestInstancesDao
+from .dao_rules import QuestDefinitionsDao
+from .db import NestQuestDatabase
+
+#: Strict UTC ISO-8601 timestamp (the DAO layers' policy): one shape,
+#: explicit offset, second precision.
+_UTC_TIMESTAMP_FORMAT = "%Y-%m-%dT%H:%M:%S+00:00"
+
+
+def _now_stamp() -> str:
+    return datetime.datetime.now(datetime.timezone.utc).strftime(
+        _UTC_TIMESTAMP_FORMAT
+    )
+
+
+async def _instance_payload(
+    database: NestQuestDatabase, instance_id: int, now_stamp: str
+) -> dict:
+    """Build the shared event payload for one quest instance."""
+    instance = await QuestInstancesDao(database).get_by_id(instance_id)
+    if instance is None:
+        raise ValueError(
+            f"instance_id: quest instance {instance_id} does not exist"
+        )
+    child = await ChildrenDao(database).get(instance.child_id)
+    definition = await QuestDefinitionsDao(database).get(
+        instance.definition_id
+    )
+    return {
+        "child_id": instance.child_id,
+        "child_name": child.display_name if child else None,
+        "instance_id": instance.id,
+        "quest_title": definition.title if definition else None,
+        "window": instance.window,
+        "due_date": instance.due_date,
+        "due_time": instance.due_time,
+        "occurred_at": now_stamp,
+    }
+
+
+async def fire_quest_completed(
+    hass, database: NestQuestDatabase, instance_id: int
+) -> None:
+    """Fire ``nestquest_quest_completed`` and, when the completion
+    cleared the child's whole day, ``nestquest_child_day_complete``.
+
+    Called by the complete_quest service handler AFTER an actual
+    completion transition; a no-op re-complete never reaches here.
+    """
+    now_stamp = _now_stamp()
+    payload = await _instance_payload(database, instance_id, now_stamp)
+    latest = await CompletionEventsDao(database).get_latest_for_instance(
+        instance_id
+    )
+    payload["was_on_time"] = (
+        latest.was_on_time if latest is not None else None
+    )
+    hass.bus.async_fire(EVENT_QUEST_COMPLETED, payload)
+
+    # Day-complete: quests were owed today and none remain (the same
+    # rule as the all-done binary sensor; a zero-quest day never fires).
+    today = datetime.datetime.now(ZoneInfo(hass.config.time_zone)).date()
+    instances = await QuestInstancesDao(database).list_by_date_range(
+        payload["child_id"], today.isoformat(), today.isoformat()
+    )
+    events = CompletionEventsDao(database)
+    remaining = 0
+    for instance in instances:
+        latest_for_instance = await events.get_latest_for_instance(
+            instance.id
+        )
+        if derive_state(instance, latest_for_instance, today) != "done":
+            remaining += 1
+    if instances and remaining == 0:
+        hass.bus.async_fire(
+            EVENT_CHILD_DAY_COMPLETE,
+            {
+                "child_id": payload["child_id"],
+                "child_name": payload["child_name"],
+                "quests_due": len(instances),
+                "quests_completed": len(instances),
+                "occurred_at": now_stamp,
+            },
+        )
+
+
+async def fire_quest_uncompleted(
+    hass, database: NestQuestDatabase, instance_id: int
+) -> None:
+    """Fire ``nestquest_quest_uncompleted`` for an actual reversal."""
+    payload = await _instance_payload(database, instance_id, _now_stamp())
+    hass.bus.async_fire(EVENT_QUEST_UNCOMPLETED, payload)

custom_components/nestquest/services.py

@@ -42,6 +42,7 @@ from .const import (
     SERVICE_UPDATE_QUEST_DEFINITION,
 )
 from .dao_presence import PresenceOverridesDao, PresenceSchedulesDao
+from .events import fire_quest_completed, fire_quest_uncompleted
 from .materialize import regenerate_for_child
 from .permissions import permission_gate
 from .presence import PresenceSchedule
@@ -293,11 +294,19 @@ def _complete_quest(
 ) -> ServiceHandler:
     async def _handler(call: Any) -> None:
         database = _require_runtime(hass, find_runtime).database
+        instance_id = call.data["instance_id"]
+        # Events fire on an ACTUAL transition only: an already-done
+        # instance is a no-op below and must not re-announce itself.
+        state_before = await completion_layer.instance_state(
+            database, instance_id
+        )
         await completion_layer.complete_instance(
             database,
-            call.data["instance_id"],
+            instance_id,
             **_actor_kwargs(call),
         )
+        if state_before != "done":
+            await fire_quest_completed(hass, database, instance_id)
 
     return _with_errors(_handler)
 
@@ -307,11 +316,17 @@ def _uncomplete_quest(
 ) -> ServiceHandler:
     async def _handler(call: Any) -> None:
         database = _require_runtime(hass, find_runtime).database
+        instance_id = call.data["instance_id"]
+        state_before = await completion_layer.instance_state(
+            database, instance_id
+        )
         await completion_layer.uncomplete_instance(
             database,
-            call.data["instance_id"],
+            instance_id,
             **_actor_kwargs(call),
         )
+        if state_before == "done":
+            await fire_quest_uncompleted(hass, database, instance_id)
 
     return _with_errors(_handler)