315 lines
10 KiB
Python
315 lines
10 KiB
Python
"""
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Support for Nest devices.
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For more details about this component, please refer to the documentation at
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https://home-assistant.io/components/nest/
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"""
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from concurrent.futures import ThreadPoolExecutor
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import logging
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import socket
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from datetime import datetime, timedelta
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import voluptuous as vol
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from homeassistant.const import (
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CONF_STRUCTURE, CONF_FILENAME, CONF_BINARY_SENSORS, CONF_SENSORS,
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CONF_MONITORED_CONDITIONS,
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EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
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from homeassistant.helpers import config_validation as cv
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from homeassistant.helpers.dispatcher import async_dispatcher_send, \
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async_dispatcher_connect
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from homeassistant.helpers.entity import Entity
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from .const import DOMAIN
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from . import local_auth
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REQUIREMENTS = ['python-nest==4.0.3']
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_CONFIGURING = {}
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_LOGGER = logging.getLogger(__name__)
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DATA_NEST = 'nest'
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DATA_NEST_CONFIG = 'nest_config'
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SIGNAL_NEST_UPDATE = 'nest_update'
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NEST_CONFIG_FILE = 'nest.conf'
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CONF_CLIENT_ID = 'client_id'
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CONF_CLIENT_SECRET = 'client_secret'
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ATTR_HOME_MODE = 'home_mode'
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ATTR_STRUCTURE = 'structure'
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ATTR_TRIP_ID = 'trip_id'
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ATTR_ETA = 'eta'
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ATTR_ETA_WINDOW = 'eta_window'
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HOME_MODE_AWAY = 'away'
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HOME_MODE_HOME = 'home'
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SENSOR_SCHEMA = vol.Schema({
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vol.Optional(CONF_MONITORED_CONDITIONS): vol.All(cv.ensure_list)
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})
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AWAY_SCHEMA = vol.Schema({
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vol.Required(ATTR_HOME_MODE): vol.In([HOME_MODE_AWAY, HOME_MODE_HOME]),
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vol.Optional(ATTR_STRUCTURE): vol.All(cv.ensure_list, cv.string),
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vol.Optional(ATTR_TRIP_ID): cv.string,
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vol.Optional(ATTR_ETA): cv.time_period,
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vol.Optional(ATTR_ETA_WINDOW): cv.time_period
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})
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CONFIG_SCHEMA = vol.Schema({
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DOMAIN: vol.Schema({
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vol.Required(CONF_CLIENT_ID): cv.string,
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vol.Required(CONF_CLIENT_SECRET): cv.string,
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vol.Optional(CONF_STRUCTURE): vol.All(cv.ensure_list, cv.string),
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vol.Optional(CONF_SENSORS): SENSOR_SCHEMA,
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vol.Optional(CONF_BINARY_SENSORS): SENSOR_SCHEMA
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})
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}, extra=vol.ALLOW_EXTRA)
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async def async_nest_update_event_broker(hass, nest):
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"""
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Dispatch SIGNAL_NEST_UPDATE to devices when nest stream API received data.
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nest.update_event.wait will block the thread in most of time,
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so specific an executor to save default thread pool.
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"""
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_LOGGER.debug("listening nest.update_event")
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with ThreadPoolExecutor(max_workers=1) as executor:
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while True:
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await hass.loop.run_in_executor(executor, nest.update_event.wait)
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if hass.is_running:
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nest.update_event.clear()
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_LOGGER.debug("dispatching nest data update")
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async_dispatcher_send(hass, SIGNAL_NEST_UPDATE)
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else:
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_LOGGER.debug("stop listening nest.update_event")
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return
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async def async_setup(hass, config):
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"""Set up Nest components."""
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if DOMAIN not in config:
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return
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conf = config[DOMAIN]
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local_auth.initialize(hass, conf[CONF_CLIENT_ID], conf[CONF_CLIENT_SECRET])
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filename = config.get(CONF_FILENAME, NEST_CONFIG_FILE)
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access_token_cache_file = hass.config.path(filename)
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hass.async_add_job(hass.config_entries.flow.async_init(
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DOMAIN, source='import', data={
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'nest_conf_path': access_token_cache_file,
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}
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))
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# Store config to be used during entry setup
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hass.data[DATA_NEST_CONFIG] = conf
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return True
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async def async_setup_entry(hass, entry):
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"""Setup Nest from a config entry."""
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from nest import Nest
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nest = Nest(access_token=entry.data['tokens']['access_token'])
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_LOGGER.debug("proceeding with setup")
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conf = hass.data.get(DATA_NEST_CONFIG, {})
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hass.data[DATA_NEST] = NestDevice(hass, conf, nest)
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if not await hass.async_add_job(hass.data[DATA_NEST].initialize):
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return False
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for component in 'climate', 'camera', 'sensor', 'binary_sensor':
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hass.async_create_task(hass.config_entries.async_forward_entry_setup(
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entry, component))
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def set_mode(service):
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"""
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Set the home/away mode for a Nest structure.
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You can set optional eta information when set mode to away.
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"""
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if ATTR_STRUCTURE in service.data:
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structures = service.data[ATTR_STRUCTURE]
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else:
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structures = hass.data[DATA_NEST].local_structure
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for structure in nest.structures:
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if structure.name in structures:
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_LOGGER.info("Setting mode for %s", structure.name)
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structure.away = service.data[ATTR_HOME_MODE]
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if service.data[ATTR_HOME_MODE] == HOME_MODE_AWAY \
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and ATTR_ETA in service.data:
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now = datetime.utcnow()
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eta_begin = now + service.data[ATTR_ETA]
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eta_window = service.data.get(ATTR_ETA_WINDOW,
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timedelta(minutes=1))
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eta_end = eta_begin + eta_window
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trip_id = service.data.get(
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ATTR_TRIP_ID, "trip_{}".format(int(now.timestamp())))
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_LOGGER.info("Setting eta for %s, eta window starts at "
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"%s ends at %s", trip_id, eta_begin, eta_end)
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structure.set_eta(trip_id, eta_begin, eta_end)
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else:
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_LOGGER.error("Invalid structure %s",
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service.data[ATTR_STRUCTURE])
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hass.services.async_register(
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DOMAIN, 'set_mode', set_mode, schema=AWAY_SCHEMA)
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def start_up(event):
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"""Start Nest update event listener."""
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hass.async_add_job(async_nest_update_event_broker, hass, nest)
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hass.bus.async_listen_once(EVENT_HOMEASSISTANT_START, start_up)
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def shut_down(event):
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"""Stop Nest update event listener."""
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if nest:
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nest.update_event.set()
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hass.bus.async_listen_once(EVENT_HOMEASSISTANT_STOP, shut_down)
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_LOGGER.debug("async_setup_nest is done")
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return True
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class NestDevice:
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"""Structure Nest functions for hass."""
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def __init__(self, hass, conf, nest):
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"""Init Nest Devices."""
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self.hass = hass
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self.nest = nest
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self.local_structure = conf.get(CONF_STRUCTURE)
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def initialize(self):
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"""Initialize Nest."""
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from nest.nest import AuthorizationError, APIError
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try:
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# Do not optimize next statement, it is here for initialize
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# persistence Nest API connection.
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structure_names = [s.name for s in self.nest.structures]
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if self.local_structure is None:
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self.local_structure = structure_names
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except (AuthorizationError, APIError, socket.error) as err:
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_LOGGER.error(
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"Connection error while access Nest web service: %s", err)
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return False
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return True
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def structures(self):
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"""Generate a list of structures."""
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from nest.nest import AuthorizationError, APIError
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try:
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for structure in self.nest.structures:
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if structure.name not in self.local_structure:
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_LOGGER.debug("Ignoring structure %s, not in %s",
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structure.name, self.local_structure)
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continue
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yield structure
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except (AuthorizationError, APIError, socket.error) as err:
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_LOGGER.error(
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"Connection error while access Nest web service: %s", err)
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def thermostats(self):
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"""Generate a list of thermostats."""
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return self._devices('thermostats')
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def smoke_co_alarms(self):
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"""Generate a list of smoke co alarms."""
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return self._devices('smoke_co_alarms')
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def cameras(self):
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"""Generate a list of cameras."""
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return self._devices('cameras')
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def _devices(self, device_type):
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"""Generate a list of Nest devices."""
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from nest.nest import AuthorizationError, APIError
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try:
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for structure in self.nest.structures:
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if structure.name not in self.local_structure:
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_LOGGER.debug("Ignoring structure %s, not in %s",
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structure.name, self.local_structure)
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continue
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for device in getattr(structure, device_type, []):
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try:
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# Do not optimize next statement,
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# it is here for verify Nest API permission.
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device.name_long
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except KeyError:
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_LOGGER.warning("Cannot retrieve device name for [%s]"
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", please check your Nest developer "
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"account permission settings.",
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device.serial)
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continue
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yield (structure, device)
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except (AuthorizationError, APIError, socket.error) as err:
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_LOGGER.error(
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"Connection error while access Nest web service: %s", err)
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class NestSensorDevice(Entity):
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"""Representation of a Nest sensor."""
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def __init__(self, structure, device, variable):
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"""Initialize the sensor."""
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self.structure = structure
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self.variable = variable
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if device is not None:
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# device specific
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self.device = device
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self._name = "{} {}".format(self.device.name_long,
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self.variable.replace('_', ' '))
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else:
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# structure only
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self.device = structure
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self._name = "{} {}".format(self.structure.name,
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self.variable.replace('_', ' '))
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self._state = None
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self._unit = None
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@property
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def name(self):
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"""Return the name of the nest, if any."""
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return self._name
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@property
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def unit_of_measurement(self):
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"""Return the unit the value is expressed in."""
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return self._unit
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@property
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def should_poll(self):
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"""Do not need poll thanks using Nest streaming API."""
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return False
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def update(self):
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"""Do not use NestSensorDevice directly."""
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raise NotImplementedError
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async def async_added_to_hass(self):
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"""Register update signal handler."""
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async def async_update_state():
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"""Update sensor state."""
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await self.async_update_ha_state(True)
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async_dispatcher_connect(self.hass, SIGNAL_NEST_UPDATE,
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async_update_state)
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