core/homeassistant/components/person/__init__.py

532 lines
17 KiB
Python

"""Support for tracking people."""
from collections import OrderedDict
from itertools import chain
import logging
from typing import Optional
import uuid
import voluptuous as vol
from homeassistant.components import websocket_api
from homeassistant.components.device_tracker import (
DOMAIN as DEVICE_TRACKER_DOMAIN,
ATTR_SOURCE_TYPE,
SOURCE_TYPE_GPS,
)
from homeassistant.const import (
ATTR_ID,
ATTR_LATITUDE,
ATTR_LONGITUDE,
ATTR_GPS_ACCURACY,
CONF_ID,
CONF_NAME,
EVENT_HOMEASSISTANT_START,
STATE_UNKNOWN,
STATE_UNAVAILABLE,
STATE_HOME,
STATE_NOT_HOME,
)
from homeassistant.core import callback, Event, State
from homeassistant.auth import EVENT_USER_REMOVED
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.entity_component import EntityComponent
from homeassistant.helpers.event import async_track_state_change
from homeassistant.helpers.restore_state import RestoreEntity
from homeassistant.helpers.storage import Store
from homeassistant.helpers.typing import ConfigType, HomeAssistantType
from homeassistant.loader import bind_hass
_LOGGER = logging.getLogger(__name__)
ATTR_EDITABLE = "editable"
ATTR_SOURCE = "source"
ATTR_USER_ID = "user_id"
CONF_DEVICE_TRACKERS = "device_trackers"
CONF_USER_ID = "user_id"
DOMAIN = "person"
STORAGE_KEY = DOMAIN
STORAGE_VERSION = 1
SAVE_DELAY = 10
# Device tracker states to ignore
IGNORE_STATES = (STATE_UNKNOWN, STATE_UNAVAILABLE)
PERSON_SCHEMA = vol.Schema(
{
vol.Required(CONF_ID): cv.string,
vol.Required(CONF_NAME): cv.string,
vol.Optional(CONF_USER_ID): cv.string,
vol.Optional(CONF_DEVICE_TRACKERS, default=[]): vol.All(
cv.ensure_list, cv.entities_domain(DEVICE_TRACKER_DOMAIN)
),
}
)
CONFIG_SCHEMA = vol.Schema(
{vol.Optional(DOMAIN): vol.All(cv.ensure_list, cv.remove_falsy, [PERSON_SCHEMA])},
extra=vol.ALLOW_EXTRA,
)
_UNDEF = object()
@bind_hass
async def async_create_person(hass, name, *, user_id=None, device_trackers=None):
"""Create a new person."""
await hass.data[DOMAIN].async_create_person(
name=name, user_id=user_id, device_trackers=device_trackers
)
class PersonManager:
"""Manage person data."""
def __init__(
self, hass: HomeAssistantType, component: EntityComponent, config_persons
):
"""Initialize person storage."""
self.hass = hass
self.component = component
self.store = Store(hass, STORAGE_VERSION, STORAGE_KEY)
self.storage_data = None
config_data = self.config_data = OrderedDict()
for conf in config_persons:
person_id = conf[CONF_ID]
if person_id in config_data:
_LOGGER.error("Found config user with duplicate ID: %s", person_id)
continue
config_data[person_id] = conf
@property
def storage_persons(self):
"""Iterate over persons stored in storage."""
return list(self.storage_data.values())
@property
def config_persons(self):
"""Iterate over persons stored in config."""
return list(self.config_data.values())
async def async_initialize(self):
"""Get the person data."""
raw_storage = await self.store.async_load()
if raw_storage is None:
raw_storage = {"persons": []}
storage_data = self.storage_data = OrderedDict()
for person in raw_storage["persons"]:
storage_data[person[CONF_ID]] = person
entities = []
seen_users = set()
for person_conf in self.config_data.values():
person_id = person_conf[CONF_ID]
user_id = person_conf.get(CONF_USER_ID)
if user_id is not None:
if await self.hass.auth.async_get_user(user_id) is None:
_LOGGER.error("Invalid user_id detected for person %s", person_id)
continue
if user_id in seen_users:
_LOGGER.error(
"Duplicate user_id %s detected for person %s",
user_id,
person_id,
)
continue
seen_users.add(user_id)
entities.append(Person(person_conf, False))
# To make sure IDs don't overlap between config/storage
seen_persons = set(self.config_data)
for person_conf in storage_data.values():
person_id = person_conf[CONF_ID]
user_id = person_conf[CONF_USER_ID]
if person_id in seen_persons:
_LOGGER.error(
"Skipping adding person from storage with same ID as"
" configuration.yaml entry: %s",
person_id,
)
continue
if user_id is not None and user_id in seen_users:
_LOGGER.error(
"Duplicate user_id %s detected for person %s", user_id, person_id
)
continue
# To make sure all users have just 1 person linked.
seen_users.add(user_id)
entities.append(Person(person_conf, True))
if entities:
await self.component.async_add_entities(entities)
self.hass.bus.async_listen(EVENT_USER_REMOVED, self._user_removed)
async def async_create_person(self, *, name, device_trackers=None, user_id=None):
"""Create a new person."""
if not name:
raise ValueError("Name is required")
if user_id is not None:
await self._validate_user_id(user_id)
person = {
CONF_ID: uuid.uuid4().hex,
CONF_NAME: name,
CONF_USER_ID: user_id,
CONF_DEVICE_TRACKERS: device_trackers or [],
}
self.storage_data[person[CONF_ID]] = person
self._async_schedule_save()
await self.component.async_add_entities([Person(person, True)])
return person
async def async_update_person(
self, person_id, *, name=_UNDEF, device_trackers=_UNDEF, user_id=_UNDEF
):
"""Update person."""
current = self.storage_data.get(person_id)
if current is None:
raise ValueError("Invalid person specified.")
changes = {
key: value
for key, value in (
(CONF_NAME, name),
(CONF_DEVICE_TRACKERS, device_trackers),
(CONF_USER_ID, user_id),
)
if value is not _UNDEF and current[key] != value
}
if CONF_USER_ID in changes and user_id is not None:
await self._validate_user_id(user_id)
self.storage_data[person_id].update(changes)
self._async_schedule_save()
for entity in self.component.entities:
if entity.unique_id == person_id:
entity.person_updated()
break
return self.storage_data[person_id]
async def async_delete_person(self, person_id):
"""Delete person."""
if person_id not in self.storage_data:
raise ValueError("Invalid person specified.")
self.storage_data.pop(person_id)
self._async_schedule_save()
ent_reg = await self.hass.helpers.entity_registry.async_get_registry()
for entity in self.component.entities:
if entity.unique_id == person_id:
await entity.async_remove()
ent_reg.async_remove(entity.entity_id)
break
@callback
def _async_schedule_save(self) -> None:
"""Schedule saving the area registry."""
self.store.async_delay_save(self._data_to_save, SAVE_DELAY)
@callback
def _data_to_save(self) -> dict:
"""Return data of area registry to store in a file."""
return {"persons": list(self.storage_data.values())}
async def _validate_user_id(self, user_id):
"""Validate the used user_id."""
if await self.hass.auth.async_get_user(user_id) is None:
raise ValueError("User does not exist")
if any(
person
for person in chain(self.storage_data.values(), self.config_data.values())
if person.get(CONF_USER_ID) == user_id
):
raise ValueError("User already taken")
async def _user_removed(self, event: Event):
"""Handle event that a person is removed."""
user_id = event.data["user_id"]
for person in self.storage_data.values():
if person[CONF_USER_ID] == user_id:
await self.async_update_person(person_id=person[CONF_ID], user_id=None)
async def async_setup(hass: HomeAssistantType, config: ConfigType):
"""Set up the person component."""
component = EntityComponent(_LOGGER, DOMAIN, hass)
conf_persons = config.get(DOMAIN, [])
manager = hass.data[DOMAIN] = PersonManager(hass, component, conf_persons)
await manager.async_initialize()
websocket_api.async_register_command(hass, ws_list_person)
websocket_api.async_register_command(hass, ws_create_person)
websocket_api.async_register_command(hass, ws_update_person)
websocket_api.async_register_command(hass, ws_delete_person)
return True
class Person(RestoreEntity):
"""Represent a tracked person."""
def __init__(self, config, editable):
"""Set up person."""
self._config = config
self._editable = editable
self._latitude = None
self._longitude = None
self._gps_accuracy = None
self._source = None
self._state = None
self._unsub_track_device = None
@property
def name(self):
"""Return the name of the entity."""
return self._config[CONF_NAME]
@property
def should_poll(self):
"""Return True if entity has to be polled for state.
False if entity pushes its state to HA.
"""
return False
@property
def state(self):
"""Return the state of the person."""
return self._state
@property
def state_attributes(self):
"""Return the state attributes of the person."""
data = {ATTR_EDITABLE: self._editable, ATTR_ID: self.unique_id}
if self._latitude is not None:
data[ATTR_LATITUDE] = self._latitude
if self._longitude is not None:
data[ATTR_LONGITUDE] = self._longitude
if self._gps_accuracy is not None:
data[ATTR_GPS_ACCURACY] = self._gps_accuracy
if self._source is not None:
data[ATTR_SOURCE] = self._source
user_id = self._config.get(CONF_USER_ID)
if user_id is not None:
data[ATTR_USER_ID] = user_id
return data
@property
def unique_id(self):
"""Return a unique ID for the person."""
return self._config[CONF_ID]
async def async_added_to_hass(self):
"""Register device trackers."""
await super().async_added_to_hass()
state = await self.async_get_last_state()
if state:
self._parse_source_state(state)
if self.hass.is_running:
# Update person now if hass is already running.
self.person_updated()
else:
# Wait for hass start to not have race between person
# and device trackers finishing setup.
@callback
def person_start_hass(now):
self.person_updated()
self.hass.bus.async_listen_once(
EVENT_HOMEASSISTANT_START, person_start_hass
)
@callback
def person_updated(self):
"""Handle when the config is updated."""
if self._unsub_track_device is not None:
self._unsub_track_device()
self._unsub_track_device = None
trackers = self._config.get(CONF_DEVICE_TRACKERS)
if trackers:
_LOGGER.debug("Subscribe to device trackers for %s", self.entity_id)
self._unsub_track_device = async_track_state_change(
self.hass, trackers, self._async_handle_tracker_update
)
self._update_state()
@callback
def _async_handle_tracker_update(self, entity, old_state, new_state):
"""Handle the device tracker state changes."""
self._update_state()
@callback
def _update_state(self):
"""Update the state."""
latest_non_gps_home = latest_not_home = latest_gps = latest = None
for entity_id in self._config.get(CONF_DEVICE_TRACKERS, []):
state = self.hass.states.get(entity_id)
if not state or state.state in IGNORE_STATES:
continue
if state.attributes.get(ATTR_SOURCE_TYPE) == SOURCE_TYPE_GPS:
latest_gps = _get_latest(latest_gps, state)
elif state.state == STATE_HOME:
latest_non_gps_home = _get_latest(latest_non_gps_home, state)
elif state.state == STATE_NOT_HOME:
latest_not_home = _get_latest(latest_not_home, state)
if latest_non_gps_home:
latest = latest_non_gps_home
elif latest_gps:
latest = latest_gps
else:
latest = latest_not_home
if latest:
self._parse_source_state(latest)
else:
self._state = None
self._source = None
self._latitude = None
self._longitude = None
self._gps_accuracy = None
self.async_schedule_update_ha_state()
@callback
def _parse_source_state(self, state):
"""Parse source state and set person attributes.
This is a device tracker state or the restored person state.
"""
self._state = state.state
self._source = state.entity_id
self._latitude = state.attributes.get(ATTR_LATITUDE)
self._longitude = state.attributes.get(ATTR_LONGITUDE)
self._gps_accuracy = state.attributes.get(ATTR_GPS_ACCURACY)
@websocket_api.websocket_command({vol.Required("type"): "person/list"})
def ws_list_person(
hass: HomeAssistantType, connection: websocket_api.ActiveConnection, msg
):
"""List persons."""
manager: PersonManager = hass.data[DOMAIN]
connection.send_result(
msg["id"],
{"storage": manager.storage_persons, "config": manager.config_persons},
)
@websocket_api.websocket_command(
{
vol.Required("type"): "person/create",
vol.Required("name"): vol.All(str, vol.Length(min=1)),
vol.Optional("user_id"): vol.Any(str, None),
vol.Optional("device_trackers", default=[]): vol.All(
cv.ensure_list, cv.entities_domain(DEVICE_TRACKER_DOMAIN)
),
}
)
@websocket_api.require_admin
@websocket_api.async_response
async def ws_create_person(
hass: HomeAssistantType, connection: websocket_api.ActiveConnection, msg
):
"""Create a person."""
manager: PersonManager = hass.data[DOMAIN]
try:
person = await manager.async_create_person(
name=msg["name"],
user_id=msg.get("user_id"),
device_trackers=msg["device_trackers"],
)
connection.send_result(msg["id"], person)
except ValueError as err:
connection.send_error(
msg["id"], websocket_api.const.ERR_INVALID_FORMAT, str(err)
)
@websocket_api.websocket_command(
{
vol.Required("type"): "person/update",
vol.Required("person_id"): str,
vol.Required("name"): vol.All(str, vol.Length(min=1)),
vol.Optional("user_id"): vol.Any(str, None),
vol.Optional(CONF_DEVICE_TRACKERS, default=[]): vol.All(
cv.ensure_list, cv.entities_domain(DEVICE_TRACKER_DOMAIN)
),
}
)
@websocket_api.require_admin
@websocket_api.async_response
async def ws_update_person(
hass: HomeAssistantType, connection: websocket_api.ActiveConnection, msg
):
"""Update a person."""
manager: PersonManager = hass.data[DOMAIN]
changes = {}
for key in ("name", "user_id", "device_trackers"):
if key in msg:
changes[key] = msg[key]
try:
person = await manager.async_update_person(msg["person_id"], **changes)
connection.send_result(msg["id"], person)
except ValueError as err:
connection.send_error(
msg["id"], websocket_api.const.ERR_INVALID_FORMAT, str(err)
)
@websocket_api.websocket_command(
{vol.Required("type"): "person/delete", vol.Required("person_id"): str}
)
@websocket_api.require_admin
@websocket_api.async_response
async def ws_delete_person(
hass: HomeAssistantType, connection: websocket_api.ActiveConnection, msg
):
"""Delete a person."""
manager: PersonManager = hass.data[DOMAIN]
await manager.async_delete_person(msg["person_id"])
connection.send_result(msg["id"])
def _get_latest(prev: Optional[State], curr: State):
"""Get latest state."""
if prev is None or curr.last_updated > prev.last_updated:
return curr
return prev