core/homeassistant/components/esphome/sensor.py

90 lines
2.6 KiB
Python

"""Support for esphome sensors."""
import logging
import math
from typing import TYPE_CHECKING, Optional
from homeassistant.config_entries import ConfigEntry
from homeassistant.helpers.typing import HomeAssistantType
from . import EsphomeEntity, platform_async_setup_entry, esphome_state_property
if TYPE_CHECKING:
# pylint: disable=unused-import
from aioesphomeapi import ( # noqa
SensorInfo, SensorState, TextSensorInfo, TextSensorState)
_LOGGER = logging.getLogger(__name__)
async def async_setup_entry(hass: HomeAssistantType,
entry: ConfigEntry, async_add_entities) -> None:
"""Set up esphome sensors based on a config entry."""
# pylint: disable=redefined-outer-name
from aioesphomeapi import ( # noqa
SensorInfo, SensorState, TextSensorInfo, TextSensorState)
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
)
class EsphomeSensor(EsphomeEntity):
"""A sensor implementation for esphome."""
@property
def _static_info(self) -> 'SensorInfo':
return super()._static_info
@property
def _state(self) -> Optional['SensorState']:
return super()._state
@property
def icon(self) -> str:
"""Return the icon."""
return self._static_info.icon
@esphome_state_property
def state(self) -> Optional[str]:
"""Return the state of the entity."""
if math.isnan(self._state.state):
return None
return '{:.{prec}f}'.format(
self._state.state, prec=self._static_info.accuracy_decimals)
@property
def unit_of_measurement(self) -> str:
"""Return the unit the value is expressed in."""
return self._static_info.unit_of_measurement
class EsphomeTextSensor(EsphomeEntity):
"""A text sensor implementation for ESPHome."""
@property
def _static_info(self) -> 'TextSensorInfo':
return super()._static_info
@property
def _state(self) -> Optional['TextSensorState']:
return super()._state
@property
def icon(self) -> str:
"""Return the icon."""
return self._static_info.icon
@esphome_state_property
def state(self) -> Optional[str]:
"""Return the state of the entity."""
return self._state.state