core/homeassistant/components/velbus/sensor.py

70 lines
2.2 KiB
Python

"""Support for Velbus sensors."""
import logging
from homeassistant.const import DEVICE_CLASS_POWER, ENERGY_KILO_WATT_HOUR
from . import VelbusEntity
from .const import DOMAIN
_LOGGER = logging.getLogger(__name__)
async def async_setup_entry(hass, entry, async_add_entities):
"""Set up Velbus sensor based on config_entry."""
cntrl = hass.data[DOMAIN][entry.entry_id]["cntrl"]
modules_data = hass.data[DOMAIN][entry.entry_id]["sensor"]
entities = []
for address, channel in modules_data:
module = cntrl.get_module(address)
entities.append(VelbusSensor(module, channel))
if module.get_class(channel) == "counter":
entities.append(VelbusSensor(module, channel, True))
async_add_entities(entities)
class VelbusSensor(VelbusEntity):
"""Representation of a sensor."""
def __init__(self, module, channel, counter=False):
"""Initialize a sensor Velbus entity."""
super().__init__(module, channel)
self._is_counter = counter
@property
def unique_id(self):
"""Return unique ID for counter sensors."""
unique_id = super().unique_id
if self._is_counter:
unique_id = f"{unique_id}-counter"
return unique_id
@property
def device_class(self):
"""Return the device class of the sensor."""
if self._module.get_class(self._channel) == "counter" and not self._is_counter:
if self._module.get_counter_unit(self._channel) == ENERGY_KILO_WATT_HOUR:
return DEVICE_CLASS_POWER
return None
return self._module.get_class(self._channel)
@property
def state(self):
"""Return the state of the sensor."""
if self._is_counter:
return self._module.get_counter_state(self._channel)
return self._module.get_state(self._channel)
@property
def unit_of_measurement(self):
"""Return the unit this state is expressed in."""
if self._is_counter:
return self._module.get_counter_unit(self._channel)
return self._module.get_unit(self._channel)
@property
def icon(self):
"""Icon to use in the frontend."""
if self._is_counter:
return "mdi:counter"
return None