164 lines
4.9 KiB
Python
164 lines
4.9 KiB
Python
"""Component to interface with switches that can be controlled remotely."""
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from __future__ import annotations
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from dataclasses import dataclass
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from datetime import timedelta
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import logging
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from typing import Any, final
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import voluptuous as vol
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from homeassistant.backports.enum import StrEnum
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from homeassistant.config_entries import ConfigEntry
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from homeassistant.const import (
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CONF_ENTITY_ID,
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SERVICE_TOGGLE,
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SERVICE_TURN_OFF,
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SERVICE_TURN_ON,
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STATE_ON,
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Platform,
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)
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from homeassistant.core import HomeAssistant
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from homeassistant.helpers import entity_registry as er
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from homeassistant.helpers.config_validation import ( # noqa: F401
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PLATFORM_SCHEMA,
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PLATFORM_SCHEMA_BASE,
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)
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from homeassistant.helpers.entity import ToggleEntity, ToggleEntityDescription
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from homeassistant.helpers.entity_component import EntityComponent
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from homeassistant.helpers.typing import ConfigType
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from homeassistant.loader import bind_hass
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from .const import DOMAIN
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SCAN_INTERVAL = timedelta(seconds=30)
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ENTITY_ID_FORMAT = DOMAIN + ".{}"
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ATTR_TODAY_ENERGY_KWH = "today_energy_kwh"
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ATTR_CURRENT_POWER_W = "current_power_w"
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MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
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PROP_TO_ATTR = {
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"current_power_w": ATTR_CURRENT_POWER_W,
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"today_energy_kwh": ATTR_TODAY_ENERGY_KWH,
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}
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_LOGGER = logging.getLogger(__name__)
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class SwitchDeviceClass(StrEnum):
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"""Device class for switches."""
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OUTLET = "outlet"
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SWITCH = "switch"
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DEVICE_CLASSES_SCHEMA = vol.All(vol.Lower, vol.Coerce(SwitchDeviceClass))
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# DEVICE_CLASS* below are deprecated as of 2021.12
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# use the SwitchDeviceClass enum instead.
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DEVICE_CLASSES = [cls.value for cls in SwitchDeviceClass]
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DEVICE_CLASS_OUTLET = SwitchDeviceClass.OUTLET.value
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DEVICE_CLASS_SWITCH = SwitchDeviceClass.SWITCH.value
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PLATFORMS: list[Platform] = [Platform.LIGHT]
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@bind_hass
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def is_on(hass: HomeAssistant, entity_id: str) -> bool:
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"""Return if the switch is on based on the statemachine.
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Async friendly.
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"""
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return hass.states.is_state(entity_id, STATE_ON)
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async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
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"""Track states and offer events for switches."""
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component = hass.data[DOMAIN] = EntityComponent(
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_LOGGER, DOMAIN, hass, SCAN_INTERVAL
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)
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await component.async_setup(config)
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component.async_register_entity_service(SERVICE_TURN_OFF, {}, "async_turn_off")
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component.async_register_entity_service(SERVICE_TURN_ON, {}, "async_turn_on")
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component.async_register_entity_service(SERVICE_TOGGLE, {}, "async_toggle")
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return True
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async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
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"""Set up a config entry."""
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if entry.domain == DOMAIN:
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registry = er.async_get(hass)
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try:
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er.async_validate_entity_id(registry, entry.options[CONF_ENTITY_ID])
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except vol.Invalid:
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# The entity is identified by an unknown entity registry ID
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_LOGGER.error(
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"Failed to setup light switch for unknown entity %s",
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entry.options[CONF_ENTITY_ID],
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)
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return False
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hass.config_entries.async_setup_platforms(entry, PLATFORMS)
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return True
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component: EntityComponent = hass.data[DOMAIN]
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return await component.async_setup_entry(entry)
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async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
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"""Unload a config entry."""
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component: EntityComponent = hass.data[DOMAIN]
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return await component.async_unload_entry(entry)
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@dataclass
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class SwitchEntityDescription(ToggleEntityDescription):
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"""A class that describes switch entities."""
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device_class: SwitchDeviceClass | str | None = None
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class SwitchEntity(ToggleEntity):
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"""Base class for switch entities."""
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entity_description: SwitchEntityDescription
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_attr_current_power_w: float | None = None
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_attr_device_class: SwitchDeviceClass | str | None
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_attr_today_energy_kwh: float | None = None
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@property
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def current_power_w(self) -> float | None:
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"""Return the current power usage in W."""
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return self._attr_current_power_w
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@property
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def device_class(self) -> SwitchDeviceClass | str | None:
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"""Return the class of this entity."""
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if hasattr(self, "_attr_device_class"):
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return self._attr_device_class
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if hasattr(self, "entity_description"):
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return self.entity_description.device_class
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return None
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@property
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def today_energy_kwh(self) -> float | None:
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"""Return the today total energy usage in kWh."""
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return self._attr_today_energy_kwh
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@final
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@property
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def state_attributes(self) -> dict[str, Any] | None:
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"""Return the optional state attributes."""
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data = {}
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for prop, attr in PROP_TO_ATTR.items():
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if (value := getattr(self, prop)) is not None:
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data[attr] = value
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return data
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