131 lines
3.8 KiB
Python
131 lines
3.8 KiB
Python
"""Support for Luftdaten sensors."""
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import logging
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from homeassistant.const import (
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ATTR_ATTRIBUTION,
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ATTR_LATITUDE,
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ATTR_LONGITUDE,
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CONF_SHOW_ON_MAP,
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)
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from homeassistant.core import callback
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from homeassistant.helpers.dispatcher import async_dispatcher_connect
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from homeassistant.helpers.entity import Entity
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from . import (
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DATA_LUFTDATEN,
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DATA_LUFTDATEN_CLIENT,
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DEFAULT_ATTRIBUTION,
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DOMAIN,
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SENSORS,
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TOPIC_UPDATE,
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)
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from .const import ATTR_SENSOR_ID
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_LOGGER = logging.getLogger(__name__)
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async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
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"""Set up an Luftdaten sensor based on existing config."""
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pass
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async def async_setup_entry(hass, entry, async_add_entities):
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"""Set up a Luftdaten sensor based on a config entry."""
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luftdaten = hass.data[DOMAIN][DATA_LUFTDATEN_CLIENT][entry.entry_id]
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sensors = []
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for sensor_type in luftdaten.sensor_conditions:
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name, icon, unit = SENSORS[sensor_type]
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sensors.append(
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LuftdatenSensor(
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luftdaten, sensor_type, name, icon, unit, entry.data[CONF_SHOW_ON_MAP]
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)
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)
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async_add_entities(sensors, True)
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class LuftdatenSensor(Entity):
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"""Implementation of a Luftdaten sensor."""
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def __init__(self, luftdaten, sensor_type, name, icon, unit, show):
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"""Initialize the Luftdaten sensor."""
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self._async_unsub_dispatcher_connect = None
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self.luftdaten = luftdaten
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self._icon = icon
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self._name = name
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self._data = None
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self.sensor_type = sensor_type
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self._unit_of_measurement = unit
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self._show_on_map = show
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self._attrs = {}
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@property
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def icon(self):
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"""Return the icon."""
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return self._icon
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@property
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def state(self):
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"""Return the state of the device."""
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if self._data is not None:
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return self._data[self.sensor_type]
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@property
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def unit_of_measurement(self):
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"""Return the unit of measurement of this entity, if any."""
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return self._unit_of_measurement
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@property
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def should_poll(self):
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"""Disable polling."""
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return False
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@property
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def unique_id(self) -> str:
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"""Return a unique, friendly identifier for this entity."""
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if self._data is not None:
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return "{0}_{1}".format(self._data["sensor_id"], self.sensor_type)
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@property
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def device_state_attributes(self):
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"""Return the state attributes."""
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self._attrs[ATTR_ATTRIBUTION] = DEFAULT_ATTRIBUTION
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if self._data is not None:
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self._attrs[ATTR_SENSOR_ID] = self._data["sensor_id"]
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on_map = ATTR_LATITUDE, ATTR_LONGITUDE
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no_map = "lat", "long"
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lat_format, lon_format = on_map if self._show_on_map else no_map
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try:
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self._attrs[lon_format] = self._data["longitude"]
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self._attrs[lat_format] = self._data["latitude"]
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return self._attrs
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except KeyError:
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return
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async def async_added_to_hass(self):
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"""Register callbacks."""
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@callback
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def update():
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"""Update the state."""
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self.async_schedule_update_ha_state(True)
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self._async_unsub_dispatcher_connect = async_dispatcher_connect(
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self.hass, TOPIC_UPDATE, update
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)
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async def async_will_remove_from_hass(self):
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"""Disconnect dispatcher listener when removed."""
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if self._async_unsub_dispatcher_connect:
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self._async_unsub_dispatcher_connect()
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async def async_update(self):
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"""Get the latest data and update the state."""
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try:
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self._data = self.luftdaten.data[DATA_LUFTDATEN]
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except KeyError:
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return
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