core/homeassistant/components/esphome/sensor.py

132 lines
4.1 KiB
Python

"""Support for esphome sensors."""
from __future__ import annotations
from datetime import datetime
import math
from aioesphomeapi import (
SensorInfo,
SensorState,
SensorStateClass as EsphomeSensorStateClass,
TextSensorInfo,
TextSensorState,
)
from aioesphomeapi.model import LastResetType
from homeassistant.components.sensor import (
DEVICE_CLASSES,
SensorDeviceClass,
SensorEntity,
SensorStateClass,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.util import dt
from . import (
EsphomeEntity,
EsphomeEnumMapper,
esphome_state_property,
platform_async_setup_entry,
)
async def async_setup_entry(
hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
) -> None:
"""Set up esphome sensors based on a config entry."""
await platform_async_setup_entry(
hass,
entry,
async_add_entities,
component_key="sensor",
info_type=SensorInfo,
entity_type=EsphomeSensor,
state_type=SensorState,
)
await platform_async_setup_entry(
hass,
entry,
async_add_entities,
component_key="text_sensor",
info_type=TextSensorInfo,
entity_type=EsphomeTextSensor,
state_type=TextSensorState,
)
# https://github.com/PyCQA/pylint/issues/3150 for all @esphome_state_property
# pylint: disable=invalid-overridden-method
_STATE_CLASSES: EsphomeEnumMapper[
EsphomeSensorStateClass, SensorStateClass | None
] = EsphomeEnumMapper(
{
EsphomeSensorStateClass.NONE: None,
EsphomeSensorStateClass.MEASUREMENT: SensorStateClass.MEASUREMENT,
EsphomeSensorStateClass.TOTAL_INCREASING: SensorStateClass.TOTAL_INCREASING,
}
)
class EsphomeSensor(EsphomeEntity[SensorInfo, SensorState], SensorEntity):
"""A sensor implementation for esphome."""
@property
def force_update(self) -> bool:
"""Return if this sensor should force a state update."""
return self._static_info.force_update
@esphome_state_property
def native_value(self) -> datetime | str | None:
"""Return the state of the entity."""
if math.isnan(self._state.state):
return None
if self._state.missing_state:
return None
if self.device_class == SensorDeviceClass.TIMESTAMP:
return dt.utc_from_timestamp(self._state.state)
return f"{self._state.state:.{self._static_info.accuracy_decimals}f}"
@property
def native_unit_of_measurement(self) -> str | None:
"""Return the unit the value is expressed in."""
if not self._static_info.unit_of_measurement:
return None
return self._static_info.unit_of_measurement
@property
def device_class(self) -> str | None:
"""Return the class of this device, from component DEVICE_CLASSES."""
if self._static_info.device_class not in DEVICE_CLASSES:
return None
return self._static_info.device_class
@property
def state_class(self) -> SensorStateClass | None:
"""Return the state class of this entity."""
if not self._static_info.state_class:
return None
state_class = self._static_info.state_class
reset_type = self._static_info.last_reset_type
if (
state_class == EsphomeSensorStateClass.MEASUREMENT
and reset_type == LastResetType.AUTO
):
# Legacy, last_reset_type auto was the equivalent to the TOTAL_INCREASING state class
return SensorStateClass.TOTAL_INCREASING
return _STATE_CLASSES.from_esphome(self._static_info.state_class)
class EsphomeTextSensor(EsphomeEntity[TextSensorInfo, TextSensorState], SensorEntity):
"""A text sensor implementation for ESPHome."""
@esphome_state_property
def native_value(self) -> str | None:
"""Return the state of the entity."""
if self._state.missing_state:
return None
return self._state.state