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device_tracker.py
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device_tracker.py
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"""Support for the GPSLogger device tracking."""
from homeassistant.components.device_tracker import SourceType, TrackerEntity
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import (
ATTR_BATTERY_LEVEL,
ATTR_GPS_ACCURACY,
ATTR_LATITUDE,
ATTR_LONGITUDE,
)
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers import device_registry as dr
from homeassistant.helpers.device_registry import DeviceInfo
from homeassistant.helpers.dispatcher import async_dispatcher_connect
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.restore_state import RestoreEntity
from . import DOMAIN as GPL_DOMAIN, TRACKER_UPDATE
from .const import (
ATTR_ACTIVITY,
ATTR_ALTITUDE,
ATTR_DIRECTION,
ATTR_PROVIDER,
ATTR_SPEED,
)
async def async_setup_entry(
hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
) -> None:
"""Configure a dispatcher connection based on a config entry."""
@callback
def _receive_data(device, gps, battery, accuracy, attrs):
"""Receive set location."""
if device in hass.data[GPL_DOMAIN]["devices"]:
return
hass.data[GPL_DOMAIN]["devices"].add(device)
async_add_entities([GPSLoggerEntity(device, gps, battery, accuracy, attrs)])
hass.data[GPL_DOMAIN]["unsub_device_tracker"][entry.entry_id] = (
async_dispatcher_connect(hass, TRACKER_UPDATE, _receive_data)
)
# Restore previously loaded devices
dev_reg = dr.async_get(hass)
dev_ids = {
identifier[1]
for device in dev_reg.devices.get_devices_for_config_entry_id(entry.entry_id)
for identifier in device.identifiers
}
if not dev_ids:
return
entities = []
for dev_id in dev_ids:
hass.data[GPL_DOMAIN]["devices"].add(dev_id)
entity = GPSLoggerEntity(dev_id, None, None, None, None)
entities.append(entity)
async_add_entities(entities)
class GPSLoggerEntity(TrackerEntity, RestoreEntity):
"""Represent a tracked device."""
_attr_has_entity_name = True
_attr_name = None
def __init__(self, device, location, battery, accuracy, attributes):
"""Set up GPSLogger entity."""
self._accuracy = accuracy
self._attributes = attributes
self._name = device
self._battery = battery
self._location = location
self._unsub_dispatcher = None
self._unique_id = device
@property
def battery_level(self):
"""Return battery value of the device."""
return self._battery
@property
def extra_state_attributes(self):
"""Return device specific attributes."""
return self._attributes
@property
def latitude(self):
"""Return latitude value of the device."""
return self._location[0]
@property
def longitude(self):
"""Return longitude value of the device."""
return self._location[1]
@property
def location_accuracy(self):
"""Return the gps accuracy of the device."""
return self._accuracy
@property
def unique_id(self):
"""Return the unique ID."""
return self._unique_id
@property
def device_info(self) -> DeviceInfo:
"""Return the device info."""
return DeviceInfo(
identifiers={(GPL_DOMAIN, self._unique_id)},
name=self._name,
)
@property
def source_type(self) -> SourceType:
"""Return the source type, eg gps or router, of the device."""
return SourceType.GPS
async def async_added_to_hass(self) -> None:
"""Register state update callback."""
await super().async_added_to_hass()
self._unsub_dispatcher = async_dispatcher_connect(
self.hass, TRACKER_UPDATE, self._async_receive_data
)
# don't restore if we got created with data
if self._location is not None:
return
if (state := await self.async_get_last_state()) is None:
self._location = (None, None)
self._accuracy = None
self._attributes = {
ATTR_ALTITUDE: None,
ATTR_ACTIVITY: None,
ATTR_DIRECTION: None,
ATTR_PROVIDER: None,
ATTR_SPEED: None,
}
self._battery = None
return
attr = state.attributes
self._location = (attr.get(ATTR_LATITUDE), attr.get(ATTR_LONGITUDE))
self._accuracy = attr.get(ATTR_GPS_ACCURACY)
self._attributes = {
ATTR_ALTITUDE: attr.get(ATTR_ALTITUDE),
ATTR_ACTIVITY: attr.get(ATTR_ACTIVITY),
ATTR_DIRECTION: attr.get(ATTR_DIRECTION),
ATTR_PROVIDER: attr.get(ATTR_PROVIDER),
ATTR_SPEED: attr.get(ATTR_SPEED),
}
self._battery = attr.get(ATTR_BATTERY_LEVEL)
async def async_will_remove_from_hass(self) -> None:
"""Clean up after entity before removal."""
await super().async_will_remove_from_hass()
self._unsub_dispatcher()
@callback
def _async_receive_data(self, device, location, battery, accuracy, attributes):
"""Mark the device as seen."""
if device != self._name:
return
self._location = location
self._battery = battery
self._accuracy = accuracy
self._attributes.update(attributes)
self.async_write_ha_state()