86 lines
2.7 KiB
Python
86 lines
2.7 KiB
Python
"""Support for OpenTherm Gateway sensors."""
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import logging
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from homeassistant.components.sensor import ENTITY_ID_FORMAT
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from homeassistant.core import callback
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from homeassistant.helpers.dispatcher import async_dispatcher_connect
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from homeassistant.helpers.entity import Entity, async_generate_entity_id
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from .const import DATA_GATEWAYS, DATA_OPENTHERM_GW, SENSOR_INFO
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_LOGGER = logging.getLogger(__name__)
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async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
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"""Set up the OpenTherm Gateway sensors."""
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if discovery_info is None:
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return
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gw_dev = hass.data[DATA_OPENTHERM_GW][DATA_GATEWAYS][discovery_info]
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sensors = []
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for var, info in SENSOR_INFO.items():
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device_class = info[0]
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unit = info[1]
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friendly_name_format = info[2]
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sensors.append(
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OpenThermSensor(gw_dev, var, device_class, unit, friendly_name_format)
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)
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async_add_entities(sensors)
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class OpenThermSensor(Entity):
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"""Representation of an OpenTherm Gateway sensor."""
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def __init__(self, gw_dev, var, device_class, unit, friendly_name_format):
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"""Initialize the OpenTherm Gateway sensor."""
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self.entity_id = async_generate_entity_id(
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ENTITY_ID_FORMAT, "{}_{}".format(var, gw_dev.gw_id), hass=gw_dev.hass
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)
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self._gateway = gw_dev
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self._var = var
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self._value = None
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self._device_class = device_class
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self._unit = unit
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self._friendly_name = friendly_name_format.format(gw_dev.name)
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async def async_added_to_hass(self):
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"""Subscribe to updates from the component."""
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_LOGGER.debug("Added OpenTherm Gateway sensor %s", self._friendly_name)
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async_dispatcher_connect(
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self.hass, self._gateway.update_signal, self.receive_report
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)
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@callback
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def receive_report(self, status):
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"""Handle status updates from the component."""
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value = status.get(self._var)
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if isinstance(value, float):
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value = "{:2.1f}".format(value)
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self._value = value
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self.async_schedule_update_ha_state()
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@property
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def name(self):
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"""Return the friendly name of the sensor."""
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return self._friendly_name
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@property
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def device_class(self):
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"""Return the device class."""
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return self._device_class
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@property
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def state(self):
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"""Return the state of the device."""
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return self._value
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@property
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def unit_of_measurement(self):
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"""Return the unit of measurement."""
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return self._unit
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@property
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def should_poll(self):
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"""Return False because entity pushes its state."""
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return False
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