core/homeassistant/components/sma/sensor.py

125 lines
3.9 KiB
Python

"""SMA Solar Webconnect interface."""
from __future__ import annotations
from typing import TYPE_CHECKING
import pysma
from homeassistant.components.sensor import (
SensorDeviceClass,
SensorEntity,
SensorStateClass,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import UnitOfEnergy, UnitOfPower
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity import DeviceInfo
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.typing import StateType
from homeassistant.helpers.update_coordinator import (
CoordinatorEntity,
DataUpdateCoordinator,
)
from .const import DOMAIN, PYSMA_COORDINATOR, PYSMA_DEVICE_INFO, PYSMA_SENSORS
async def async_setup_entry(
hass: HomeAssistant,
config_entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up SMA sensors."""
sma_data = hass.data[DOMAIN][config_entry.entry_id]
coordinator = sma_data[PYSMA_COORDINATOR]
used_sensors = sma_data[PYSMA_SENSORS]
device_info = sma_data[PYSMA_DEVICE_INFO]
if TYPE_CHECKING:
assert config_entry.unique_id
entities = []
for sensor in used_sensors:
entities.append(
SMAsensor(
coordinator,
config_entry.unique_id,
device_info,
sensor,
)
)
async_add_entities(entities)
class SMAsensor(CoordinatorEntity, SensorEntity):
"""Representation of a SMA sensor."""
def __init__(
self,
coordinator: DataUpdateCoordinator,
config_entry_unique_id: str,
device_info: DeviceInfo,
pysma_sensor: pysma.sensor.Sensor,
) -> None:
"""Initialize the sensor."""
super().__init__(coordinator)
self._sensor = pysma_sensor
self._enabled_default = self._sensor.enabled
self._config_entry_unique_id = config_entry_unique_id
self._attr_device_info = device_info
if self.native_unit_of_measurement == UnitOfEnergy.KILO_WATT_HOUR:
self._attr_state_class = SensorStateClass.TOTAL_INCREASING
self._attr_device_class = SensorDeviceClass.ENERGY
if self.native_unit_of_measurement == UnitOfPower.WATT:
self._attr_state_class = SensorStateClass.MEASUREMENT
self._attr_device_class = SensorDeviceClass.POWER
# Set sensor enabled to False.
# Will be enabled by async_added_to_hass if actually used.
self._sensor.enabled = False
@property
def name(self) -> str:
"""Return the name of the sensor."""
if self._attr_device_info is None or not (
name_prefix := self._attr_device_info.get("name")
):
name_prefix = "SMA"
return f"{name_prefix} {self._sensor.name}"
@property
def native_value(self) -> StateType:
"""Return the state of the sensor."""
return self._sensor.value
@property
def native_unit_of_measurement(self) -> str | None:
"""Return the unit the value is expressed in."""
return self._sensor.unit
@property
def unique_id(self) -> str:
"""Return a unique identifier for this sensor."""
return (
f"{self._config_entry_unique_id}-{self._sensor.key}_{self._sensor.key_idx}"
)
@property
def entity_registry_enabled_default(self) -> bool:
"""Return if the entity should be enabled when first added to the entity registry."""
return self._enabled_default
async def async_added_to_hass(self) -> None:
"""Run when entity about to be added to hass."""
await super().async_added_to_hass()
self._sensor.enabled = True
async def async_will_remove_from_hass(self) -> None:
"""Run when entity will be removed from hass."""
await super().async_will_remove_from_hass()
self._sensor.enabled = False