core/homeassistant/components/owntracks/device_tracker.py

167 lines
4.5 KiB
Python

"""Device tracker platform that adds support for OwnTracks over MQTT."""
import logging
from homeassistant.core import callback
from homeassistant.const import (
ATTR_GPS_ACCURACY,
ATTR_LATITUDE,
ATTR_LONGITUDE,
ATTR_BATTERY_LEVEL,
)
from homeassistant.components.device_tracker.const import (
ENTITY_ID_FORMAT, ATTR_SOURCE_TYPE)
from homeassistant.components.device_tracker.config_entry import (
DeviceTrackerEntity
)
from homeassistant.helpers.restore_state import RestoreEntity
from homeassistant.helpers import device_registry
from . import DOMAIN as OT_DOMAIN
_LOGGER = logging.getLogger(__name__)
async def async_setup_entry(hass, entry, async_add_entities):
"""Set up OwnTracks based off an entry."""
@callback
def _receive_data(dev_id, **data):
"""Receive set location."""
entity = hass.data[OT_DOMAIN]['devices'].get(dev_id)
if entity is not None:
entity.update_data(data)
return
entity = hass.data[OT_DOMAIN]['devices'][dev_id] = OwnTracksEntity(
dev_id, data
)
async_add_entities([entity])
hass.data[OT_DOMAIN]['context'].async_see = _receive_data
# Restore previously loaded devices
dev_reg = await device_registry.async_get_registry(hass)
dev_ids = {
identifier[1]
for device in dev_reg.devices.values()
for identifier in device.identifiers
if identifier[0] == OT_DOMAIN
}
if not dev_ids:
return True
entities = []
for dev_id in dev_ids:
entity = hass.data[OT_DOMAIN]['devices'][dev_id] = OwnTracksEntity(
dev_id
)
entities.append(entity)
async_add_entities(entities)
return True
class OwnTracksEntity(DeviceTrackerEntity, RestoreEntity):
"""Represent a tracked device."""
def __init__(self, dev_id, data=None):
"""Set up OwnTracks entity."""
self._dev_id = dev_id
self._data = data or {}
self.entity_id = ENTITY_ID_FORMAT.format(dev_id)
@property
def unique_id(self):
"""Return the unique ID."""
return self._dev_id
@property
def battery_level(self):
"""Return the battery level of the device."""
return self._data.get('battery')
@property
def device_state_attributes(self):
"""Return device specific attributes."""
return self._data.get('attributes')
@property
def location_accuracy(self):
"""Return the gps accuracy of the device."""
return self._data.get('gps_accuracy')
@property
def latitude(self):
"""Return latitude value of the device."""
# Check with "get" instead of "in" because value can be None
if self._data.get('gps'):
return self._data['gps'][0]
return None
@property
def longitude(self):
"""Return longitude value of the device."""
# Check with "get" instead of "in" because value can be None
if self._data.get('gps'):
return self._data['gps'][1]
return None
@property
def location_name(self):
"""Return a location name for the current location of the device."""
return self._data.get('location_name')
@property
def name(self):
"""Return the name of the device."""
return self._data.get('host_name')
@property
def should_poll(self):
"""No polling needed."""
return False
@property
def source_type(self):
"""Return the source type, eg gps or router, of the device."""
return self._data.get('source_type')
@property
def device_info(self):
"""Return the device info."""
return {
'name': self.name,
'identifiers': {(OT_DOMAIN, self._dev_id)},
}
async def async_added_to_hass(self):
"""Call when entity about to be added to Home Assistant."""
await super().async_added_to_hass()
# Don't restore if we got set up with data.
if self._data:
return
state = await self.async_get_last_state()
if state is None:
return
attr = state.attributes
self._data = {
'host_name': state.name,
'gps': (attr[ATTR_LATITUDE], attr[ATTR_LONGITUDE]),
'gps_accuracy': attr[ATTR_GPS_ACCURACY],
'battery': attr[ATTR_BATTERY_LEVEL],
'source_type': attr[ATTR_SOURCE_TYPE],
}
@callback
def update_data(self, data):
"""Mark the device as seen."""
self._data = data
self.async_write_ha_state()