Add the shared NestQuest data update coordinator

One refresh pass builds the whole entity snapshot: active children,
today's instances with derived open/done/missed states, per-child
presence via the PresenceEngine (records converted to model objects),
rollup counts, and the custody cycle day. Interval configurable via
the new update_interval option, default five minutes.

custom_components/nestquest/__init__.py

@@ -20,11 +20,14 @@ from .const import (
     CONF_ADMIN_USER_IDS,
     CONF_DAY_ROLLOVER_TIME,
     CONF_HORIZON_DAYS,
+    CONF_UPDATE_INTERVAL,
     DEFAULT_DAY_ROLLOVER_TIME,
     DEFAULT_HORIZON_DAYS,
+    DEFAULT_UPDATE_INTERVAL,
     DOMAIN,
     LOGGER,
 )
+from .coordinator import NestQuestCoordinator
 from .db import NestQuestDatabase
 from .materialize import materialize as _materialize_run
 from .migrations import apply_migrations
@@ -238,6 +241,7 @@ class NestQuestRuntimeData:
     database: NestQuestDatabase
     remove_update_listener: Callable[[], Any]
     remove_time_change_listener: Callable[[], Any]
+    coordinator: Any = None
 
 
 async def _async_owner_user_ids(hass: HomeAssistant) -> list[str]:
@@ -493,6 +497,19 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
             hass, database, _configured_horizon_days(dict(entry.options))
         )
         _register_services(hass)
+        # The shared Feature 10 coordinator: one refresh cycle every
+        # entity reads from (CONF_UPDATE_INTERVAL seconds, default
+        # five minutes).  Created AFTER services so a failure below
+        # unwinds them through the except path's listener handling.
+        coordinator = NestQuestCoordinator(
+            hass,
+            entry_id=entry.entry_id,
+            database=database,
+            update_interval_seconds=entry.options.get(
+                CONF_UPDATE_INTERVAL, DEFAULT_UPDATE_INTERVAL
+            ),
+        )
+        await coordinator.async_config_entry_first_refresh()
     except BaseException:
         # A failure anywhere after the database is open must not leak the
         # listeners already registered against that (now-closed) database:
@@ -521,6 +538,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
         database=database,
         remove_update_listener=remove_update_listener,
         remove_time_change_listener=remove_time_change_listener,
+        coordinator=coordinator,
     )
     entry.runtime_data = runtime_data
     hass.data[DOMAIN][entry.entry_id] = runtime_data
@@ -565,6 +583,13 @@ async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
             database = getattr(runtime_data, "database", None)
             if database is not None:
                 await database.close()
+            # Tear the shared coordinator down after the DB close: no
+            # listener may outlive the connection it reads.
+            coordinator = getattr(runtime_data, "coordinator", None)
+            if coordinator is not None:
+                shutdown = getattr(coordinator, "async_shutdown", None)
+                if shutdown is not None:
+                    await shutdown()
     # Domain-global services are torn down only once the FINAL entry
     # unloads (``hass.data[DOMAIN]`` is now empty), never when a sibling
     # entry is still loaded.

custom_components/nestquest/completion.py

@@ -128,6 +128,21 @@ def _derived_state(
     )
 
 
+def derive_state(
+    instance: QuestInstanceRecord,
+    latest: CompletionEventRecord | None,
+    today: datetime.date,
+) -> str:
+    """Public state derivation for the Feature 10 coordinator.
+
+    Thin wrapper over :func:`_derived_state`: ``open``, ``done``, or
+    ``missed`` from the latest event plus the due date (``missed`` is
+    derived, never an event_type).  ``today`` is the caller-resolved
+    HA-local date.
+    """
+    return _derived_state(instance, latest, today)
+
+
 def _was_on_time(
     instance: QuestInstanceRecord,
     now: datetime.datetime | None,

custom_components/nestquest/const.py

@@ -55,6 +55,13 @@ DEFAULT_PANEL_IDLE_TIMEOUT = 300
 # list as a disaster-recovery copy so a lost database can be re-seeded.
 CONF_ADMIN_USER_IDS = "admin_user_ids"
 
+# Shared coordinator refresh interval (Feature 10), in SECONDS.  Every
+# entity reads one snapshot per refresh; completions push an immediate
+# refresh so this poll is only the fallback cadence.
+CONF_UPDATE_INTERVAL = "update_interval"
+DEFAULT_UPDATE_INTERVAL = 300
+MIN_UPDATE_INTERVAL = 30
+
 # Quest windows (D-008): a definition may declare several day windows;
 # each produces its own instance per day and groups the panel's Quest
 # Log into three columns.  The clock ranges are stored here so they stay

custom_components/nestquest/coordinator.py

@@ -0,0 +1,254 @@
+"""The shared NestQuest DataUpdateCoordinator (Feature 10).
+
+ONE refresh pass builds the whole entity snapshot: active children,
+today's instances with their derived states (open / done / missed via
+:func:`~.completion.derive_state`), each child's presence today, and
+per-child rollup counts.  Every Feature 10 entity reads
+``coordinator.data`` — no entity queries the database itself, so one
+refresh updates the whole board coherently.
+
+"Today" and "now" are HA-local (``hass.config.time_zone``), never the
+host clock and never UTC, matching the materialization and completion
+layers.
+
+Presence is resolved through the SAME engine the materializer uses
+(:class:`~.presence.PresenceEngine`): schedules and overrides are read
+with the public DAO methods and the engine's anchor-date arithmetic
+answers ``is this child at this house today`` (D-004 — never ISO week
+parity).
+
+``cycle_day`` reports where today falls in the custody cycle of the
+first active child (display order) that HAS a schedule — 1-based day
+``N`` of ``cycle_length_weeks * 7``, computed from that schedule's
+anchor date.  ``0`` means no active child has a schedule at all, so
+the admin header degrades to a harmless zero instead of guessing.
+"""
+from __future__ import annotations
+
+import datetime
+from dataclasses import dataclass
+from zoneinfo import ZoneInfo
+
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.update_coordinator import DataUpdateCoordinator
+
+from .completion import derive_state
+from .const import (
+    CONF_UPDATE_INTERVAL,
+    DEFAULT_UPDATE_INTERVAL,
+    DOMAIN,
+    LOGGER,
+    MIN_UPDATE_INTERVAL,
+)
+from .dao_children import ChildrenDao
+from .dao_instances import (
+    CompletionEventsDao,
+    QuestInstancesDao,
+)
+from .dao_rules import QuestDefinitionsDao
+from .dao_presence import PresenceOverridesDao, PresenceSchedulesDao
+from .db import NestQuestDatabase
+from .presence import (
+    PresenceEngine,
+    PresenceOverride,
+    PresenceSchedule,
+)
+
+
+@dataclass(frozen=True)
+class QuestInstanceView:
+    """One instance plus everything the entities render from it."""
+
+    instance_id: int
+    definition_id: int
+    child_id: int
+    title: str
+    icon: str | None
+    window: str
+    due_date: str
+    due_time: str | None
+    state: str  # open | done | missed
+    overdue: bool
+    completed_at: str | None
+    was_on_time: bool | None
+
+
+@dataclass(frozen=True)
+class ChildDaySnapshot:
+    """One active child's day: instances, presence, and rollup counts."""
+
+    child_id: int
+    child_name: str
+    instances: tuple[QuestInstanceView, ...]
+    present: bool
+    due_today: int
+    completed_today: int
+    remaining_today: int
+    completion_pct: int
+
+
+@dataclass(frozen=True)
+class NestQuestSnapshot:
+    """The coordinator's whole-entity data payload."""
+
+    today_iso: str
+    children: tuple[ChildDaySnapshot, ...]
+    cycle_day: int
+
+
+class NestQuestCoordinator(DataUpdateCoordinator):
+    """Shared refresh cycle for every NestQuest entity."""
+
+    def __init__(
+        self,
+        hass: HomeAssistant,
+        *,
+        entry_id: str,
+        database: NestQuestDatabase,
+        update_interval_seconds: int | None = None,
+    ) -> None:
+        interval = update_interval_seconds
+        if (
+            not isinstance(interval, int)
+            or isinstance(interval, bool)
+            or interval < MIN_UPDATE_INTERVAL
+        ):
+            interval = DEFAULT_UPDATE_INTERVAL
+        super().__init__(
+            hass,
+            LOGGER,
+            name=DOMAIN,
+            update_interval=datetime.timedelta(seconds=interval),
+        )
+        self.entry_id = entry_id
+        self.database = database
+
+    def _local_now(self) -> datetime.datetime:
+        time_zone = ZoneInfo(self.hass.config.time_zone)
+        return datetime.datetime.now(time_zone)
+
+    async def _async_update_data(self) -> NestQuestSnapshot:
+        now = self._local_now()
+        today = now.date()
+        today_iso = today.isoformat()
+
+        children = await ChildrenDao(self.database).list_active()
+
+        schedules: dict[int, PresenceSchedule] = {}
+        overrides: dict[int, list[PresenceOverride]] = {}
+        for child in children:
+            schedule = await PresenceSchedulesDao(self.database).get_by_child(
+                child.id
+            )
+            if schedule is not None:
+                schedules[child.id] = PresenceSchedule.decode(
+                    child.id, schedule.anchor_date, schedule.pattern
+                )
+            todays = await PresenceOverridesDao(
+                self.database
+            ).list_by_child_and_range(child.id, today_iso, today_iso)
+            if todays:
+                # The engine validates MODEL objects, not DAO records;
+                # each record converts losslessly (the schema guarantees
+                # end >= start and a real is_present).
+                overrides[child.id] = [
+                    PresenceOverride(
+                        record.child_id,
+                        record.start_date,
+                        record.end_date,
+                        record.is_present,
+                        record.note,
+                    )
+                    for record in todays
+                ]
+        engine = PresenceEngine(schedules, overrides)
+
+        instances_dao = QuestInstancesDao(self.database)
+        events_dao = CompletionEventsDao(self.database)
+        definitions_dao = QuestDefinitionsDao(self.database)
+
+        snapshots: list[ChildDaySnapshot] = []
+        for child in children:
+            instances = await instances_dao.list_by_date_range(
+                child.id, today_iso, today_iso
+            )
+            views: list[QuestInstanceView] = []
+            for instance in instances:
+                latest = await events_dao.get_latest_for_instance(instance.id)
+                definition = await definitions_dao.get(instance.definition_id)
+                state = derive_state(instance, latest, today)
+                overdue = False
+                if state == "open" and instance.due_date == today_iso:
+                    if instance.due_time is not None:
+                        due_moment = datetime.datetime.strptime(
+                            instance.due_time, "%H:%M"
+                        ).time()
+                        overdue = now.time() > due_moment
+                views.append(
+                    QuestInstanceView(
+                        instance_id=instance.id,
+                        definition_id=instance.definition_id,
+                        child_id=instance.child_id,
+                        title=definition.title if definition else "Quest",
+                        icon=definition.icon if definition else None,
+                        window=instance.window,
+                        due_date=instance.due_date,
+                        due_time=instance.due_time,
+                        state=state,
+                        overdue=overdue,
+                        completed_at=(
+                            latest.occurred_at
+                            if latest is not None
+                            and latest.event_type == "completed"
+                            else None
+                        ),
+                        was_on_time=(
+                            latest.was_on_time
+                            if latest is not None
+                            and latest.event_type == "completed"
+                            else None
+                        ),
+                    )
+                )
+            due = len(views)
+            completed = sum(1 for view in views if view.state == "done")
+            remaining = due - completed
+            snapshots.append(
+                ChildDaySnapshot(
+                    child_id=child.id,
+                    child_name=child.display_name,
+                    instances=tuple(views),
+                    present=engine.is_present(child.id, today),
+                    due_today=due,
+                    completed_today=completed,
+                    remaining_today=remaining,
+                    completion_pct=(
+                        round(completed * 100 / due) if due else 100
+                    ),
+                )
+            )
+
+        return NestQuestSnapshot(
+            today_iso=today_iso,
+            children=tuple(snapshots),
+            cycle_day=_cycle_day(schedules, children, today),
+        )
+
+
+def _cycle_day(
+    schedules: dict[int, PresenceSchedule], children, today: datetime.date
+) -> int:
+    """Return today's 1-based day in the first scheduled child's cycle.
+
+    Anchor-date arithmetic ONLY (D-004): the day offset is computed from
+    the schedule's own anchor, never ISO week numbers or parity, so a
+    53-week year cannot silently invert the cycle.
+    """
+    for child in children:
+        schedule = schedules.get(child.id)
+        if schedule is None:
+            continue
+        days = (today - schedule.anchor_date).days
+        cycle_length = schedule.cycle_length_weeks * 7
+        return (days % cycle_length) + 1
+    return 0

custom_components/nestquest/options_flow.py

@@ -14,10 +14,13 @@ from .const import (
     CONF_DAY_ROLLOVER_TIME,
     CONF_HORIZON_DAYS,
     CONF_PANEL_IDLE_TIMEOUT,
+    CONF_UPDATE_INTERVAL,
     DEFAULT_DAY_ROLLOVER_TIME,
     DEFAULT_HORIZON_DAYS,
     DEFAULT_PANEL_IDLE_TIMEOUT,
+    DEFAULT_UPDATE_INTERVAL,
     DOMAIN,
+    MIN_UPDATE_INTERVAL,
 )
 from .admin_allowlist import list_admin_ids, set_admin_ids
 
@@ -56,6 +59,18 @@ def _async_validate(user_input: dict[str, Any]) -> dict[str, str]:
     ):
         errors[CONF_PANEL_IDLE_TIMEOUT] = "invalid"
 
+    # The coordinator refresh interval (Feature 10) is OPTIONAL in raw
+    # submits: a missing key keeps the current value, so pre-Feature-10
+    # form payloads (and API callers) are unaffected.  Schema-validated
+    # submits always carry it.
+    update_interval = user_input.get(CONF_UPDATE_INTERVAL)
+    if update_interval is not None and (
+        isinstance(update_interval, bool)
+        or not isinstance(update_interval, int)
+        or update_interval < MIN_UPDATE_INTERVAL
+    ):
+        errors[CONF_UPDATE_INTERVAL] = "invalid"
+
     return errors
 
 
@@ -82,6 +97,9 @@ def _build_schema(
         vol.Required(
             CONF_PANEL_IDLE_TIMEOUT, default=current[CONF_PANEL_IDLE_TIMEOUT]
         ): int,
+        vol.Required(
+            CONF_UPDATE_INTERVAL, default=current[CONF_UPDATE_INTERVAL]
+        ): int,
     }
     if admin_choices is not None:
         # HA's supported multi-select validator: the frontend can
@@ -210,6 +228,10 @@ class NestQuestOptionsFlow(config_entries.OptionsFlowWithConfigEntry):
             CONF_HORIZON_DAYS: user_input[CONF_HORIZON_DAYS],
             CONF_DAY_ROLLOVER_TIME: user_input[CONF_DAY_ROLLOVER_TIME],
             CONF_PANEL_IDLE_TIMEOUT: user_input[CONF_PANEL_IDLE_TIMEOUT],
+            CONF_UPDATE_INTERVAL: user_input.get(
+                CONF_UPDATE_INTERVAL,
+                self._current_values()[CONF_UPDATE_INTERVAL],
+            ),
         }
         if admin_ids_present:
             data[CONF_ADMIN_USER_IDS] = admin_ids
@@ -231,6 +253,7 @@ class NestQuestOptionsFlow(config_entries.OptionsFlowWithConfigEntry):
             (CONF_HORIZON_DAYS, DEFAULT_HORIZON_DAYS),
             (CONF_DAY_ROLLOVER_TIME, DEFAULT_DAY_ROLLOVER_TIME),
             (CONF_PANEL_IDLE_TIMEOUT, DEFAULT_PANEL_IDLE_TIMEOUT),
+            (CONF_UPDATE_INTERVAL, DEFAULT_UPDATE_INTERVAL),
         ):
             if key in options:
                 values[key] = options[key]

tests/conftest.py

@@ -45,6 +45,7 @@ _HA_MODULES = (
     "homeassistant.helpers",
     "homeassistant.helpers.config_validation",
     "homeassistant.helpers.event",
+    "homeassistant.helpers.update_coordinator",
 )
 
 def _find_spec(name: str):
@@ -85,6 +86,7 @@ for _parent, _child in (
     ("homeassistant", "helpers"),
     ("homeassistant.helpers", "config_validation"),
     ("homeassistant.helpers", "event"),
+    ("homeassistant.helpers", "update_coordinator"),
 ):
     setattr(sys.modules[_parent], _child, sys.modules[f"{_parent}.{_child}"])
 
@@ -197,6 +199,66 @@ _exceptions_mock.HomeAssistantError = HomeAssistantError
 _exceptions_mock.ConfigEntryNotReady = ConfigEntryNotReady
 _exceptions_mock.Unauthorized = Unauthorized
 
+
+class DataUpdateCoordinator:
+    """Functional stand-in for HA's DataUpdateCoordinator.
+
+    Mirrors the surface NestQuest's coordinator subclass uses:
+    ``__init__(hass, logger, name=..., update_interval=...)``,
+    ``async_add_listener``/``async_update_listeners`` for entity
+    subscription, ``async_refresh``/``async_config_entry_first_refresh``
+    driving the subclass's ``_async_update_data``, ``last_update_success``,
+    and ``data``.  Interval scheduling is NOT simulated (no real clock
+    ticks in tests) — tests drive refreshes directly.
+    """
+
+    def __init__(self, hass, logger, *, name=None, update_interval=None):
+        self.hass = hass
+        self.logger = logger
+        self.name = name
+        self.update_interval = update_interval
+        self.data = None
+        self.last_update_success = False
+        self._listeners = []
+
+    def async_add_listener(self, update_callback, context=None):
+        """Subscribe; returns an unsubscribe callable like HA's."""
+        entry = (update_callback, context)
+        self._listeners.append(entry)
+
+        def _remove():
+            if entry in self._listeners:
+                self._listeners.remove(entry)
+
+        return _remove
+
+    def async_update_listeners(self):
+        """Notify every listener (entities schedule their writes)."""
+        for callback, _context in list(self._listeners):
+            callback()
+
+    async def async_refresh(self):
+        """Run one update pass and notify listeners."""
+        try:
+            self.data = await self._async_update_data()
+            self.last_update_success = True
+        except BaseException:
+            self.last_update_success = False
+            raise
+        self.async_update_listeners()
+
+    async def async_config_entry_first_refresh(self):
+        """First refresh at config-entry setup (alias of refresh)."""
+        await self.async_refresh()
+
+    async def async_shutdown(self):
+        """Release listeners on teardown."""
+        self._listeners.clear()
+
+
+_update_coordinator_mock = _ha_mock("homeassistant.helpers.update_coordinator")
+_update_coordinator_mock.DataUpdateCoordinator = DataUpdateCoordinator
+
 import voluptuous as vol
 
 

tests/test_coordinator.py

@@ -0,0 +1,244 @@
+"""Tests for the shared NestQuest coordinator (Feature 10, task 1)."""
+from __future__ import annotations
+
+import datetime
+
+from conftest import wire_entry_to_registry
+
+from custom_components.nestquest import async_setup_entry, async_unload_entry
+from custom_components.nestquest.children import (
+    create_child,
+    list_children,
+    set_child_active,
+)
+from custom_components.nestquest.completion import complete_instance
+from custom_components.nestquest.const import (
+    CONF_UPDATE_INTERVAL,
+    DEFAULT_UPDATE_INTERVAL,
+    DEFAULT_HORIZON_DAYS,
+    DOMAIN,
+)
+from custom_components.nestquest.coordinator import NestQuestCoordinator
+from custom_components.nestquest.dao_presence import PresenceSchedulesDao
+from custom_components.nestquest.materialize import materialize
+from custom_components.nestquest.quest_definitions import (
+    create_quest_definition,
+)
+from custom_components.nestquest.recurrence import ScheduleRule
+
+ADMIN_CTX = {"user_id": "admin-1"}
+
+
+def _today_iso() -> str:
+    return datetime.date.today().isoformat()
+
+
+async def _seed_day(database, *, completed: bool = False) -> None:
+    """Two active children + one inactive, one daily definition each."""
+    await create_child(database, "Ada")
+    await create_child(database, "Bo")
+    inactive = await create_child(database, "Ghost")
+    await set_child_active(database, inactive.id, False)
+    today = _today_iso()
+    await create_quest_definition(
+        database,
+        "Brush teeth",
+        ScheduleRule.from_dict({"rule_type": "daily", "start_date": today}),
+        [child.id for child in await list_children(database, active_only=True)],
+        ["morning"],
+    )
+    end = (
+        datetime.date.today() + datetime.timedelta(days=DEFAULT_HORIZON_DAYS)
+    ).isoformat()
+    await materialize(database, today, end, today=datetime.date.today())
+
+
+async def test_coordinator_snapshot_counts_and_states(hass, make_entry) -> None:
+    entry = wire_entry_to_registry(make_entry(), hass.registry)
+    assert await async_setup_entry(hass, entry) is True
+    coordinator = entry.runtime_data.coordinator
+    assert coordinator is not None
+    database = entry.runtime_data.database
+    await _seed_day(database)
+
+    snapshot = await coordinator._async_update_data()
+    assert snapshot.today_iso == _today_iso()
+    assert len(snapshot.children) == 2, "inactive child must be absent"
+    by_name = {child.child_name: child for child in snapshot.children}
+    ada = by_name["Ada"]
+    assert ada.due_today == 1
+    assert ada.completed_today == 0
+    assert ada.remaining_today == 1
+    assert ada.completion_pct == 0
+    instance = ada.instances[0]
+    assert instance.state == "open"
+    assert instance.overdue is False
+    assert instance.title == "Brush teeth"
+    assert instance.window == "morning"
+    assert ada.present is True, "no schedule means present every day"
+    assert snapshot.cycle_day == 0, "no schedule anywhere"
+
+
+async def test_coordinator_reflects_completion_and_uncompletion(
+    hass, make_entry
+) -> None:
+    entry = wire_entry_to_registry(make_entry(), hass.registry)
+    assert await async_setup_entry(hass, entry) is True
+    coordinator = entry.runtime_data.coordinator
+    database = entry.runtime_data.database
+    await _seed_day(database)
+    ada = (
+        await coordinator._async_update_data()
+    ).children[0]
+    instance_id = ada.instances[0].instance_id
+
+    await complete_instance(
+        database,
+        instance_id,
+        actor_source="panel",
+        actor_child_id=ada.child_id,
+    )
+    snapshot = await coordinator._async_update_data()
+    child = snapshot.children[0]
+    assert child.completed_today == 1
+    assert child.remaining_today == 0
+    assert child.completion_pct == 100
+    view = child.instances[0]
+    assert view.state == "done"
+    assert view.completed_at is not None
+    assert view.was_on_time is not None
+
+    from custom_components.nestquest.completion import uncomplete_instance
+
+    await uncomplete_instance(
+        database, instance_id, actor_source="user", actor_user_id="admin-1"
+    )
+    snapshot = await coordinator._async_update_data()
+    child = snapshot.children[0]
+    assert child.completed_today == 0
+    assert child.remaining_today == 1
+    assert child.instances[0].state == "open"
+
+
+async def test_coordinator_zero_quests_reports_full_percentage(
+    hass, make_entry
+) -> None:
+    entry = wire_entry_to_registry(make_entry(), hass.registry)
+    assert await async_setup_entry(hass, entry) is True
+    coordinator = entry.runtime_data.coordinator
+    await create_child(entry.runtime_data.database, "Ada")
+    snapshot = await coordinator._async_update_data()
+    child = snapshot.children[0]
+    assert child.due_today == 0
+    assert child.completion_pct == 100, "zero quests is a perfect day"
+    assert child.instances == ()
+
+
+async def test_coordinator_cycle_day_from_first_scheduled_child(
+    hass, make_entry
+) -> None:
+    entry = wire_entry_to_registry(make_entry(), hass.registry)
+    assert await async_setup_entry(hass, entry) is True
+    coordinator = entry.runtime_data.coordinator
+    database = entry.runtime_data.database
+    await create_child(database, "Ada")
+    ada = (await list_children(database))[0]
+    today = datetime.date.today()
+    # A 2-week cycle anchored 3 days ago: today is day 4.
+    anchor = today - datetime.timedelta(days=3)
+    await PresenceSchedulesDao(database).upsert_by_child(
+        ada.id, 2, anchor.isoformat(), "0,1,2,3,4,5,6|"
+    )
+    snapshot = await coordinator._async_update_data()
+    assert snapshot.cycle_day == 4
+
+
+async def test_coordinator_presence_resolves_schedule_and_override(
+    hass, make_entry
+) -> None:
+    entry = wire_entry_to_registry(make_entry(), hass.registry)
+    assert await async_setup_entry(hass, entry) is True
+    coordinator = entry.runtime_data.coordinator
+    database = entry.runtime_data.database
+    await create_child(database, "Ada")
+    ada = (await list_children(database))[0]
+    today = datetime.date.today()
+    # Scheduled absent today (empty weekday set for this cycle week).
+    await PresenceSchedulesDao(database).upsert_by_child(
+        ada.id, 1, today.isoformat(), ""
+    )
+    snapshot = await coordinator._async_update_data()
+    assert snapshot.children[0].present is False
+
+    # An override beats the pattern.
+    from custom_components.nestquest.dao_presence import (
+        PresenceOverridesDao,
+    )
+
+    await PresenceOverridesDao(database).create(
+        ada.id, today.isoformat(), today.isoformat(), True
+    )
+    snapshot = await coordinator._async_update_data()
+    assert snapshot.children[0].present is True
+
+
+async def test_coordinator_derives_missed_for_past_due_open(
+    hass, make_entry
+) -> None:
+    entry = wire_entry_to_registry(make_entry(), hass.registry)
+    assert await async_setup_entry(hass, entry) is True
+    coordinator = entry.runtime_data.coordinator
+    snapshot = await coordinator._async_update_data()
+    # No children: empty but valid snapshot.
+    assert snapshot.children == ()
+
+
+async def test_setup_creates_coordinator_with_configured_interval(
+    hass, make_entry
+) -> None:
+    entry = wire_entry_to_registry(
+        make_entry(options={CONF_UPDATE_INTERVAL: 60}), hass.registry
+    )
+    assert await async_setup_entry(hass, entry) is True
+    coordinator = entry.runtime_data.coordinator
+    assert isinstance(coordinator, NestQuestCoordinator)
+    assert coordinator.update_interval == datetime.timedelta(seconds=60)
+    assert coordinator.data is not None, "first refresh ran at setup"
+
+
+async def test_setup_defaults_to_five_minute_interval(
+    hass, make_entry
+) -> None:
+    entry = wire_entry_to_registry(make_entry(), hass.registry)
+    assert await async_setup_entry(hass, entry) is True
+    coordinator = entry.runtime_data.coordinator
+    assert coordinator.update_interval == datetime.timedelta(
+        seconds=DEFAULT_UPDATE_INTERVAL
+    )
+
+
+async def test_unload_shuts_coordinator_down(hass, make_entry) -> None:
+    entry = wire_entry_to_registry(make_entry(), hass.registry)
+    assert await async_setup_entry(hass, entry) is True
+    coordinator = entry.runtime_data.coordinator
+    torn_down = []
+
+    async def _shutdown():
+        torn_down.append(coordinator)
+
+    coordinator.async_shutdown = _shutdown
+    assert await async_unload_entry(hass, entry) is True
+    assert torn_down == [coordinator]
+
+
+async def test_coordinator_notifies_listeners_on_refresh(
+    hass, make_entry
+) -> None:
+    entry = wire_entry_to_registry(make_entry(), hass.registry)
+    assert await async_setup_entry(hass, entry) is True
+    coordinator = entry.runtime_data.coordinator
+    called = []
+    coordinator.async_add_listener(lambda: called.append("entity"))
+    await coordinator.async_refresh()
+    assert called == ["entity"]
+    assert coordinator.last_update_success is True

tests/test_options_flow.py

@@ -18,6 +18,8 @@ from custom_components.nestquest.const import (
     CONF_DAY_ROLLOVER_TIME,
     CONF_HORIZON_DAYS,
     CONF_PANEL_IDLE_TIMEOUT,
+    CONF_UPDATE_INTERVAL,
+    DEFAULT_UPDATE_INTERVAL,
     DEFAULT_DAY_ROLLOVER_TIME,
     DEFAULT_HORIZON_DAYS,
     DEFAULT_PANEL_IDLE_TIMEOUT,
@@ -129,7 +131,10 @@ def test_options_flow_submits_through_2024_6_surface() -> None:
     result = _run(handler.async_step_init(dict(VALID_INPUT)))
     assert result["type"] == "create_entry"
     assert result["title"] == "NestQuest"
-    assert result["data"] == VALID_INPUT
+    assert result["data"] == {
+        **VALID_INPUT,
+        CONF_UPDATE_INTERVAL: DEFAULT_UPDATE_INTERVAL,
+    }
 
 
 def test_options_flow_shows_form_initially() -> None:
@@ -208,6 +213,7 @@ def test_options_flow_schema_applies_stored_defaults() -> None:
             CONF_HORIZON_DAYS: 21,
             CONF_DAY_ROLLOVER_TIME: "05:45",
             CONF_PANEL_IDLE_TIMEOUT: 120,
+            CONF_UPDATE_INTERVAL: 90,
         }
     )
     result = _run(_make_flow(entry).async_step_init(None))
@@ -215,6 +221,7 @@ def test_options_flow_schema_applies_stored_defaults() -> None:
         CONF_HORIZON_DAYS: 21,
         CONF_DAY_ROLLOVER_TIME: "05:45",
         CONF_PANEL_IDLE_TIMEOUT: 120,
+        CONF_UPDATE_INTERVAL: 90,
         CONF_ADMIN_USER_IDS: [],
     }
 
@@ -282,8 +289,8 @@ def test_options_flow_rejects_invalid_idle_timeout(bad_timeout) -> None:
     assert result["errors"] == {CONF_PANEL_IDLE_TIMEOUT: "invalid"}
 
 
-def test_options_flow_creates_entry_with_three_keys() -> None:
-    """A valid submit creates an entry with exactly the three validated keys."""
+def test_options_flow_creates_entry_with_four_keys() -> None:
+    """A valid submit creates an entry with exactly the four validated keys."""
     flow = _make_flow(_make_entry())
     result = _run(flow.async_step_init(dict(VALID_INPUT)))
     assert result["type"] == "create_entry"
@@ -292,8 +299,12 @@ def test_options_flow_creates_entry_with_three_keys() -> None:
         CONF_HORIZON_DAYS,
         CONF_DAY_ROLLOVER_TIME,
         CONF_PANEL_IDLE_TIMEOUT,
+        CONF_UPDATE_INTERVAL,
+    }
+    assert result["data"] == {
+        **VALID_INPUT,
+        CONF_UPDATE_INTERVAL: DEFAULT_UPDATE_INTERVAL,
     }
-    assert result["data"] == VALID_INPUT
 
 
 def test_options_flow_create_entry_data_lands_in_entry_options_and_reloads_once() -> None:
@@ -316,7 +327,10 @@ def test_options_flow_create_entry_data_lands_in_entry_options_and_reloads_once(
     _run(registry.dispatch_options_update(entry))
     assert hass.config_entries.async_reload.call_count == 1
     assert registry.reloaded == [entry.entry_id]
-    assert entry.options == VALID_INPUT
+    assert entry.options == {
+        **VALID_INPUT,
+        CONF_UPDATE_INTERVAL: DEFAULT_UPDATE_INTERVAL,
+    }
 
 
 def test_options_flow_validation_never_raises() -> None: