core/homeassistant/components/airnow/sensor.py

119 lines
3.1 KiB
Python

"""Support for the AirNow sensor service."""
from homeassistant.const import (
ATTR_ATTRIBUTION,
ATTR_DEVICE_CLASS,
ATTR_ICON,
CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
CONCENTRATION_PARTS_PER_MILLION,
)
from homeassistant.helpers.update_coordinator import CoordinatorEntity
from .const import (
ATTR_API_AQI,
ATTR_API_AQI_DESCRIPTION,
ATTR_API_AQI_LEVEL,
ATTR_API_O3,
ATTR_API_PM25,
DOMAIN,
SENSOR_AQI_ATTR_DESCR,
SENSOR_AQI_ATTR_LEVEL,
)
ATTRIBUTION = "Data provided by AirNow"
ATTR_LABEL = "label"
ATTR_UNIT = "unit"
PARALLEL_UPDATES = 1
SENSOR_TYPES = {
ATTR_API_AQI: {
ATTR_DEVICE_CLASS: None,
ATTR_ICON: "mdi:blur",
ATTR_LABEL: ATTR_API_AQI,
ATTR_UNIT: "aqi",
},
ATTR_API_PM25: {
ATTR_DEVICE_CLASS: None,
ATTR_ICON: "mdi:blur",
ATTR_LABEL: ATTR_API_PM25,
ATTR_UNIT: CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
},
ATTR_API_O3: {
ATTR_DEVICE_CLASS: None,
ATTR_ICON: "mdi:blur",
ATTR_LABEL: ATTR_API_O3,
ATTR_UNIT: CONCENTRATION_PARTS_PER_MILLION,
},
}
async def async_setup_entry(hass, config_entry, async_add_entities):
"""Set up AirNow sensor entities based on a config entry."""
coordinator = hass.data[DOMAIN][config_entry.entry_id]
sensors = []
for sensor in SENSOR_TYPES:
sensors.append(AirNowSensor(coordinator, sensor))
async_add_entities(sensors, False)
class AirNowSensor(CoordinatorEntity):
"""Define an AirNow sensor."""
def __init__(self, coordinator, kind):
"""Initialize."""
super().__init__(coordinator)
self.kind = kind
self._device_class = None
self._state = None
self._icon = None
self._unit_of_measurement = None
self._attrs = {ATTR_ATTRIBUTION: ATTRIBUTION}
@property
def name(self):
"""Return the name."""
return f"AirNow {SENSOR_TYPES[self.kind][ATTR_LABEL]}"
@property
def state(self):
"""Return the state."""
self._state = self.coordinator.data[self.kind]
return self._state
@property
def extra_state_attributes(self):
"""Return the state attributes."""
if self.kind == ATTR_API_AQI:
self._attrs[SENSOR_AQI_ATTR_DESCR] = self.coordinator.data[
ATTR_API_AQI_DESCRIPTION
]
self._attrs[SENSOR_AQI_ATTR_LEVEL] = self.coordinator.data[
ATTR_API_AQI_LEVEL
]
return self._attrs
@property
def icon(self):
"""Return the icon."""
self._icon = SENSOR_TYPES[self.kind][ATTR_ICON]
return self._icon
@property
def device_class(self):
"""Return the device_class."""
return SENSOR_TYPES[self.kind][ATTR_DEVICE_CLASS]
@property
def unique_id(self):
"""Return a unique_id for this entity."""
return f"{self.coordinator.latitude}-{self.coordinator.longitude}-{self.kind.lower()}"
@property
def unit_of_measurement(self):
"""Return the unit the value is expressed in."""
return SENSOR_TYPES[self.kind][ATTR_UNIT]