core/homeassistant/components/loopenergy/sensor.py

151 lines
4.1 KiB
Python

"""Support for Loop Energy sensors."""
import logging
import pyloopenergy
import voluptuous as vol
from homeassistant.components.sensor import PLATFORM_SCHEMA
from homeassistant.const import (
CONF_UNIT_SYSTEM_IMPERIAL,
CONF_UNIT_SYSTEM_METRIC,
EVENT_HOMEASSISTANT_STOP,
)
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.entity import Entity
_LOGGER = logging.getLogger(__name__)
CONF_ELEC = "electricity"
CONF_GAS = "gas"
CONF_ELEC_SERIAL = "electricity_serial"
CONF_ELEC_SECRET = "electricity_secret"
CONF_GAS_SERIAL = "gas_serial"
CONF_GAS_SECRET = "gas_secret"
CONF_GAS_CALORIFIC = "gas_calorific"
CONF_GAS_TYPE = "gas_type"
DEFAULT_CALORIFIC = 39.11
DEFAULT_UNIT = "kW"
ELEC_SCHEMA = vol.Schema(
{
vol.Required(CONF_ELEC_SERIAL): cv.string,
vol.Required(CONF_ELEC_SECRET): cv.string,
}
)
GAS_TYPE_SCHEMA = vol.In([CONF_UNIT_SYSTEM_METRIC, CONF_UNIT_SYSTEM_IMPERIAL])
GAS_SCHEMA = vol.Schema(
{
vol.Required(CONF_GAS_SERIAL): cv.string,
vol.Required(CONF_GAS_SECRET): cv.string,
vol.Optional(CONF_GAS_TYPE, default=CONF_UNIT_SYSTEM_METRIC): GAS_TYPE_SCHEMA,
vol.Optional(CONF_GAS_CALORIFIC, default=DEFAULT_CALORIFIC): vol.Coerce(float),
}
)
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
{vol.Required(CONF_ELEC): ELEC_SCHEMA, vol.Optional(CONF_GAS): GAS_SCHEMA}
)
def setup_platform(hass, config, add_entities, discovery_info=None):
"""Set up the Loop Energy sensors."""
elec_config = config.get(CONF_ELEC)
gas_config = config.get(CONF_GAS, {})
controller = pyloopenergy.LoopEnergy(
elec_config.get(CONF_ELEC_SERIAL),
elec_config.get(CONF_ELEC_SECRET),
gas_config.get(CONF_GAS_SERIAL),
gas_config.get(CONF_GAS_SECRET),
gas_config.get(CONF_GAS_TYPE),
gas_config.get(CONF_GAS_CALORIFIC),
)
def stop_loopenergy(event):
"""Shutdown loopenergy thread on exit."""
_LOGGER.info("Shutting down loopenergy")
controller.terminate()
hass.bus.listen_once(EVENT_HOMEASSISTANT_STOP, stop_loopenergy)
sensors = [LoopEnergyElec(controller)]
if gas_config.get(CONF_GAS_SERIAL):
sensors.append(LoopEnergyGas(controller))
add_entities(sensors)
class LoopEnergyDevice(Entity):
"""Implementation of an Loop Energy base sensor."""
def __init__(self, controller):
"""Initialize the sensor."""
self._state = None
self._unit_of_measurement = DEFAULT_UNIT
self._controller = controller
self._name = None
@property
def name(self):
"""Return the name of the sensor."""
return self._name
@property
def state(self):
"""Return the state of the sensor."""
return self._state
@property
def should_poll(self):
"""No polling needed."""
return False
@property
def unit_of_measurement(self):
"""Return the unit of measurement of this entity, if any."""
return self._unit_of_measurement
def _callback(self):
self.schedule_update_ha_state(True)
class LoopEnergyElec(LoopEnergyDevice):
"""Implementation of an Loop Energy Electricity sensor."""
def __init__(self, controller):
"""Initialize the sensor."""
super().__init__(controller)
self._name = "Power Usage"
async def async_added_to_hass(self):
"""Subscribe to updates."""
self._controller.subscribe_elecricity(self._callback)
def update(self):
"""Get the cached Loop energy reading."""
self._state = round(self._controller.electricity_useage, 2)
class LoopEnergyGas(LoopEnergyDevice):
"""Implementation of an Loop Energy Gas sensor."""
def __init__(self, controller):
"""Initialize the sensor."""
super().__init__(controller)
self._name = "Gas Usage"
async def async_added_to_hass(self):
"""Subscribe to updates."""
self._controller.subscribe_gas(self._callback)
def update(self):
"""Get the cached Loop gas reading."""
self._state = round(self._controller.gas_useage, 2)