389 lines
12 KiB
Python
389 lines
12 KiB
Python
"""Provides functionality to interact with fans."""
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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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from enum import IntFlag
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import functools as ft
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import logging
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import math
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from typing import Any, final
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import voluptuous as vol
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from homeassistant.config_entries import ConfigEntry
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from homeassistant.const import (
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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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)
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from homeassistant.core import HomeAssistant
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import homeassistant.helpers.config_validation as cv
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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 homeassistant.util.percentage import (
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percentage_to_ranged_value,
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ranged_value_to_percentage,
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)
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_LOGGER = logging.getLogger(__name__)
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DOMAIN = "fan"
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SCAN_INTERVAL = timedelta(seconds=30)
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ENTITY_ID_FORMAT = DOMAIN + ".{}"
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class FanEntityFeature(IntFlag):
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"""Supported features of the fan entity."""
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SET_SPEED = 1
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OSCILLATE = 2
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DIRECTION = 4
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PRESET_MODE = 8
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# These SUPPORT_* constants are deprecated as of Home Assistant 2022.5.
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# Please use the FanEntityFeature enum instead.
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SUPPORT_SET_SPEED = 1
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SUPPORT_OSCILLATE = 2
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SUPPORT_DIRECTION = 4
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SUPPORT_PRESET_MODE = 8
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SERVICE_INCREASE_SPEED = "increase_speed"
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SERVICE_DECREASE_SPEED = "decrease_speed"
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SERVICE_OSCILLATE = "oscillate"
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SERVICE_SET_DIRECTION = "set_direction"
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SERVICE_SET_PERCENTAGE = "set_percentage"
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SERVICE_SET_PRESET_MODE = "set_preset_mode"
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DIRECTION_FORWARD = "forward"
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DIRECTION_REVERSE = "reverse"
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ATTR_PERCENTAGE = "percentage"
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ATTR_PERCENTAGE_STEP = "percentage_step"
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ATTR_OSCILLATING = "oscillating"
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ATTR_DIRECTION = "direction"
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ATTR_PRESET_MODE = "preset_mode"
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ATTR_PRESET_MODES = "preset_modes"
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# mypy: disallow-any-generics
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class NotValidPresetModeError(ValueError):
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"""Exception class when the preset_mode in not in the preset_modes list."""
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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 fans are on based on the statemachine."""
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entity = hass.states.get(entity_id)
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assert entity
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return entity.state == STATE_ON
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async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
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"""Expose fan control via statemachine and services."""
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component = hass.data[DOMAIN] = EntityComponent[FanEntity](
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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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# After the transition to percentage and preset_modes concludes,
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# switch this back to async_turn_on and remove async_turn_on_compat
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component.async_register_entity_service(
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SERVICE_TURN_ON,
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{
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vol.Optional(ATTR_PERCENTAGE): vol.All(
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vol.Coerce(int), vol.Range(min=0, max=100)
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),
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vol.Optional(ATTR_PRESET_MODE): cv.string,
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},
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"async_turn_on",
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)
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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_TOGGLE, {}, "async_toggle")
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component.async_register_entity_service(
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SERVICE_INCREASE_SPEED,
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{
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vol.Optional(ATTR_PERCENTAGE_STEP): vol.All(
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vol.Coerce(int), vol.Range(min=0, max=100)
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)
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},
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"async_increase_speed",
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[FanEntityFeature.SET_SPEED],
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)
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component.async_register_entity_service(
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SERVICE_DECREASE_SPEED,
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{
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vol.Optional(ATTR_PERCENTAGE_STEP): vol.All(
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vol.Coerce(int), vol.Range(min=0, max=100)
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)
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},
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"async_decrease_speed",
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[FanEntityFeature.SET_SPEED],
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)
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component.async_register_entity_service(
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SERVICE_OSCILLATE,
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{vol.Required(ATTR_OSCILLATING): cv.boolean},
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"async_oscillate",
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[FanEntityFeature.OSCILLATE],
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)
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component.async_register_entity_service(
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SERVICE_SET_DIRECTION,
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{vol.Optional(ATTR_DIRECTION): cv.string},
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"async_set_direction",
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[FanEntityFeature.DIRECTION],
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)
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component.async_register_entity_service(
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SERVICE_SET_PERCENTAGE,
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{
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vol.Required(ATTR_PERCENTAGE): vol.All(
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vol.Coerce(int), vol.Range(min=0, max=100)
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)
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},
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"async_set_percentage",
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[FanEntityFeature.SET_SPEED],
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)
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component.async_register_entity_service(
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SERVICE_SET_PRESET_MODE,
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{vol.Required(ATTR_PRESET_MODE): cv.string},
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"async_set_preset_mode",
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[FanEntityFeature.SET_SPEED, FanEntityFeature.PRESET_MODE],
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)
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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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component: EntityComponent[FanEntity] = 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[FanEntity] = hass.data[DOMAIN]
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return await component.async_unload_entry(entry)
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@dataclass
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class FanEntityDescription(ToggleEntityDescription):
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"""A class that describes fan entities."""
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class FanEntity(ToggleEntity):
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"""Base class for fan entities."""
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entity_description: FanEntityDescription
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_attr_current_direction: str | None = None
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_attr_oscillating: bool | None = None
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_attr_percentage: int | None
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_attr_preset_mode: str | None
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_attr_preset_modes: list[str] | None
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_attr_speed_count: int
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_attr_supported_features: FanEntityFeature = FanEntityFeature(0)
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def set_percentage(self, percentage: int) -> None:
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"""Set the speed of the fan, as a percentage."""
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raise NotImplementedError()
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async def async_set_percentage(self, percentage: int) -> None:
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"""Set the speed of the fan, as a percentage."""
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if percentage == 0:
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await self.async_turn_off()
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await self.hass.async_add_executor_job(self.set_percentage, percentage)
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async def async_increase_speed(self, percentage_step: int | None = None) -> None:
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"""Increase the speed of the fan."""
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await self._async_adjust_speed(1, percentage_step)
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async def async_decrease_speed(self, percentage_step: int | None = None) -> None:
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"""Decrease the speed of the fan."""
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await self._async_adjust_speed(-1, percentage_step)
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async def _async_adjust_speed(
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self, modifier: int, percentage_step: int | None
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) -> None:
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"""Increase or decrease the speed of the fan."""
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current_percentage = self.percentage or 0
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if percentage_step is not None:
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new_percentage = current_percentage + (percentage_step * modifier)
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else:
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speed_range = (1, self.speed_count)
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speed_index = math.ceil(
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percentage_to_ranged_value(speed_range, current_percentage)
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)
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new_percentage = ranged_value_to_percentage(
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speed_range, speed_index + modifier
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)
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new_percentage = max(0, min(100, new_percentage))
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await self.async_set_percentage(new_percentage)
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def set_preset_mode(self, preset_mode: str) -> None:
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"""Set new preset mode."""
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raise NotImplementedError()
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async def async_set_preset_mode(self, preset_mode: str) -> None:
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"""Set new preset mode."""
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await self.hass.async_add_executor_job(self.set_preset_mode, preset_mode)
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def _valid_preset_mode_or_raise(self, preset_mode: str) -> None:
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"""Raise NotValidPresetModeError on invalid preset_mode."""
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preset_modes = self.preset_modes
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if not preset_modes or preset_mode not in preset_modes:
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raise NotValidPresetModeError(
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f"The preset_mode {preset_mode} is not a valid preset_mode: {preset_modes}"
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)
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def set_direction(self, direction: str) -> None:
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"""Set the direction of the fan."""
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raise NotImplementedError()
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async def async_set_direction(self, direction: str) -> None:
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"""Set the direction of the fan."""
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await self.hass.async_add_executor_job(self.set_direction, direction)
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def turn_on(
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self,
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percentage: int | None = None,
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preset_mode: str | None = None,
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**kwargs: Any,
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) -> None:
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"""Turn on the fan."""
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raise NotImplementedError()
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async def async_turn_on(
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self,
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percentage: int | None = None,
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preset_mode: str | None = None,
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**kwargs: Any,
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) -> None:
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"""Turn on the fan."""
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await self.hass.async_add_executor_job(
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ft.partial(
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self.turn_on,
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percentage=percentage,
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preset_mode=preset_mode,
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**kwargs,
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)
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)
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def oscillate(self, oscillating: bool) -> None:
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"""Oscillate the fan."""
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raise NotImplementedError()
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async def async_oscillate(self, oscillating: bool) -> None:
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"""Oscillate the fan."""
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await self.hass.async_add_executor_job(self.oscillate, oscillating)
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@property
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def is_on(self) -> bool | None:
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"""Return true if the entity is on."""
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return (
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self.percentage is not None and self.percentage > 0
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) or self.preset_mode is not None
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@property
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def percentage(self) -> int | None:
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"""Return the current speed as a percentage."""
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if hasattr(self, "_attr_percentage"):
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return self._attr_percentage
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return 0
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@property
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def speed_count(self) -> int:
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"""Return the number of speeds the fan supports."""
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if hasattr(self, "_attr_speed_count"):
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return self._attr_speed_count
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return 100
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@property
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def percentage_step(self) -> float:
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"""Return the step size for percentage."""
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return 100 / self.speed_count
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@property
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def current_direction(self) -> str | None:
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"""Return the current direction of the fan."""
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return self._attr_current_direction
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@property
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def oscillating(self) -> bool | None:
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"""Return whether or not the fan is currently oscillating."""
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return self._attr_oscillating
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@property
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def capability_attributes(self) -> dict[str, list[str] | None]:
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"""Return capability attributes."""
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attrs = {}
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if (
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self.supported_features & FanEntityFeature.SET_SPEED
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or self.supported_features & FanEntityFeature.PRESET_MODE
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):
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attrs[ATTR_PRESET_MODES] = self.preset_modes
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return attrs
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@final
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@property
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def state_attributes(self) -> dict[str, float | str | None]:
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"""Return optional state attributes."""
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data: dict[str, float | str | None] = {}
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supported_features = self.supported_features
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if supported_features & FanEntityFeature.DIRECTION:
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data[ATTR_DIRECTION] = self.current_direction
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if supported_features & FanEntityFeature.OSCILLATE:
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data[ATTR_OSCILLATING] = self.oscillating
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if supported_features & FanEntityFeature.SET_SPEED:
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data[ATTR_PERCENTAGE] = self.percentage
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data[ATTR_PERCENTAGE_STEP] = self.percentage_step
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if (
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supported_features & FanEntityFeature.PRESET_MODE
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or supported_features & FanEntityFeature.SET_SPEED
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):
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data[ATTR_PRESET_MODE] = self.preset_mode
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return data
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@property
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def supported_features(self) -> FanEntityFeature:
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"""Flag supported features."""
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return self._attr_supported_features
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@property
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def preset_mode(self) -> str | None:
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"""Return the current preset mode, e.g., auto, smart, interval, favorite.
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Requires FanEntityFeature.SET_SPEED.
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"""
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if hasattr(self, "_attr_preset_mode"):
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return self._attr_preset_mode
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return None
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@property
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def preset_modes(self) -> list[str] | None:
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"""Return a list of available preset modes.
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Requires FanEntityFeature.SET_SPEED.
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"""
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if hasattr(self, "_attr_preset_modes"):
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return self._attr_preset_modes
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return None
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