Files
ha-nvidia-shield/custom_components/nvidia_shield/__init__.py
T

109 lines
3.7 KiB
Python

"""The Nvidia Shield integration.
Phase 1 architecture (docs/MVP_PLAN.md §2): the entry owns a single
ShieldConnectionManager stored in ``entry.runtime_data`` — the persistent ADB
socket and all ADB-derived state live there, not on the entities. Entities are
thin callback-views over the manager's StateStore.
ADB is optional: a failed/absent ADB connection never blocks setup (no
ConfigEntryNotReady) — the manager retries in the background, or stays
passive until the user pairs via the Pair ADB button.
"""
import logging
import os
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import EVENT_HOMEASSISTANT_STOP, Platform
from homeassistant.core import HomeAssistant
from .adb_session import AdbMediaSessionPoller
from .connection import ShieldConnectionManager
from .const import CONF_ADB_ENABLED, DOMAIN
from .helpers import resolve_adb_config
_LOGGER = logging.getLogger(__name__)
PLATFORMS = [Platform.MEDIA_PLAYER, Platform.SENSOR, Platform.BUTTON]
async def _build_poller_factory(hass: HomeAssistant, entry: ConfigEntry):
"""Poller factory when ADB is configured AND usable today, else None.
Returning None leaves the manager passive: the entry still sets up, the
entities simply see no ADB state. The Pair ADB button / reconfigure
triggers a reload that re-evaluates this.
"""
if not entry.options.get(CONF_ADB_ENABLED, False):
return None
adb = resolve_adb_config(hass, entry)
if adb is None:
_LOGGER.warning(
"ADB enabled but no host resolvable for entry %s — continuing "
"without ADB state.",
entry.title,
)
return None
# Only auto-connect when a key already exists — an ADB handshake against
# an unpaired device is pointless noise (pairing happens via the Pair ADB
# button / config flow, untouched).
key_path_ready = await hass.async_add_executor_job(
os.path.exists, adb.key_path
)
if not key_path_ready:
_LOGGER.info(
"ADB key not found for entry %s — skipping auto-connect. "
"Use the Pair ADB button or reconfigure the integration.",
entry.title,
)
return None
return lambda: AdbMediaSessionPoller(adb.host, adb.port, adb.key_path)
async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
"""Set up Nvidia Shield from a config entry."""
hass.data.setdefault(DOMAIN, {})
hass.data[DOMAIN][entry.entry_id] = entry
manager = ShieldConnectionManager(
hass, entry, poller_factory=await _build_poller_factory(hass, entry)
)
entry.runtime_data = manager
await manager.async_start()
# Close the persistent socket on Home Assistant stop as well as unload.
async def _close_on_hass_stop(_event) -> None:
await manager.async_stop()
entry.async_on_unload(
hass.bus.async_listen_once(EVENT_HOMEASSISTANT_STOP, _close_on_hass_stop)
)
await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
entry.async_on_unload(entry.add_update_listener(_async_update_listener))
return True
async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
"""Unload a config entry."""
unload_ok = await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
if unload_ok:
manager = getattr(entry, "runtime_data", None)
if manager is not None:
await manager.async_stop()
entry.runtime_data = None
hass.data[DOMAIN].pop(entry.entry_id)
return unload_ok
async def _async_update_listener(hass: HomeAssistant, entry: ConfigEntry) -> None:
"""Handle options update."""
await hass.config_entries.async_reload(entry.entry_id)