core/homeassistant/components/esphome/light.py

393 lines
14 KiB
Python

"""Support for ESPHome lights."""
from __future__ import annotations
from typing import Any, cast
from aioesphomeapi import APIVersion, LightColorCapability, LightInfo, LightState
from homeassistant.components.light import (
ATTR_BRIGHTNESS,
ATTR_COLOR_TEMP,
ATTR_EFFECT,
ATTR_FLASH,
ATTR_RGB_COLOR,
ATTR_RGBW_COLOR,
ATTR_RGBWW_COLOR,
ATTR_TRANSITION,
ATTR_WHITE,
COLOR_MODE_BRIGHTNESS,
COLOR_MODE_COLOR_TEMP,
COLOR_MODE_ONOFF,
COLOR_MODE_RGB,
COLOR_MODE_RGBW,
COLOR_MODE_RGBWW,
COLOR_MODE_UNKNOWN,
COLOR_MODE_WHITE,
FLASH_LONG,
FLASH_SHORT,
SUPPORT_EFFECT,
SUPPORT_FLASH,
SUPPORT_TRANSITION,
LightEntity,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from . import EsphomeEntity, esphome_state_property, platform_async_setup_entry
FLASH_LENGTHS = {FLASH_SHORT: 2, FLASH_LONG: 10}
async def async_setup_entry(
hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
) -> None:
"""Set up ESPHome lights based on a config entry."""
await platform_async_setup_entry(
hass,
entry,
async_add_entities,
component_key="light",
info_type=LightInfo,
entity_type=EsphomeLight,
state_type=LightState,
)
_COLOR_MODE_MAPPING = {
COLOR_MODE_ONOFF: [
LightColorCapability.ON_OFF,
],
COLOR_MODE_BRIGHTNESS: [
LightColorCapability.ON_OFF | LightColorCapability.BRIGHTNESS,
# for compatibility with older clients (2021.8.x)
LightColorCapability.BRIGHTNESS,
],
COLOR_MODE_COLOR_TEMP: [
LightColorCapability.ON_OFF
| LightColorCapability.BRIGHTNESS
| LightColorCapability.COLOR_TEMPERATURE,
LightColorCapability.ON_OFF
| LightColorCapability.BRIGHTNESS
| LightColorCapability.COLD_WARM_WHITE,
],
COLOR_MODE_RGB: [
LightColorCapability.ON_OFF
| LightColorCapability.BRIGHTNESS
| LightColorCapability.RGB,
],
COLOR_MODE_RGBW: [
LightColorCapability.ON_OFF
| LightColorCapability.BRIGHTNESS
| LightColorCapability.RGB
| LightColorCapability.WHITE,
],
COLOR_MODE_RGBWW: [
LightColorCapability.ON_OFF
| LightColorCapability.BRIGHTNESS
| LightColorCapability.RGB
| LightColorCapability.WHITE
| LightColorCapability.COLOR_TEMPERATURE,
LightColorCapability.ON_OFF
| LightColorCapability.BRIGHTNESS
| LightColorCapability.RGB
| LightColorCapability.COLD_WARM_WHITE,
],
COLOR_MODE_WHITE: [
LightColorCapability.ON_OFF
| LightColorCapability.BRIGHTNESS
| LightColorCapability.WHITE
],
}
def _color_mode_to_ha(mode: int) -> str:
"""Convert an esphome color mode to a HA color mode constant.
Choses the color mode that best matches the feature-set.
"""
candidates = []
for ha_mode, cap_lists in _COLOR_MODE_MAPPING.items():
for caps in cap_lists:
if caps == mode:
# exact match
return ha_mode
if (mode & caps) == caps:
# all requirements met
candidates.append((ha_mode, caps))
if not candidates:
return COLOR_MODE_UNKNOWN
# choose the color mode with the most bits set
candidates.sort(key=lambda key: bin(key[1]).count("1"))
return candidates[-1][0]
def _filter_color_modes(
supported: list[int], features: LightColorCapability
) -> list[int]:
"""Filter the given supported color modes, excluding all values that don't have the requested features."""
return [mode for mode in supported if mode & features]
# https://github.com/PyCQA/pylint/issues/3150 for all @esphome_state_property
# pylint: disable=invalid-overridden-method
class EsphomeLight(EsphomeEntity[LightInfo, LightState], LightEntity):
"""A light implementation for ESPHome."""
@property
def _supports_color_mode(self) -> bool:
"""Return whether the client supports the new color mode system natively."""
return self._api_version >= APIVersion(1, 6)
@esphome_state_property
def is_on(self) -> bool | None: # type: ignore[override]
"""Return true if the light is on."""
return self._state.state
async def async_turn_on(self, **kwargs: Any) -> None:
"""Turn the entity on."""
data: dict[str, Any] = {"key": self._static_info.key, "state": True}
# The list of color modes that would fit this service call
color_modes = self._native_supported_color_modes
try_keep_current_mode = True
# rgb/brightness input is in range 0-255, but esphome uses 0-1
if (brightness_ha := kwargs.get(ATTR_BRIGHTNESS)) is not None:
data["brightness"] = brightness_ha / 255
color_modes = _filter_color_modes(
color_modes, LightColorCapability.BRIGHTNESS
)
if (rgb_ha := kwargs.get(ATTR_RGB_COLOR)) is not None:
rgb = tuple(x / 255 for x in rgb_ha)
color_bri = max(rgb)
# normalize rgb
data["rgb"] = tuple(x / (color_bri or 1) for x in rgb)
data["color_brightness"] = color_bri
color_modes = _filter_color_modes(color_modes, LightColorCapability.RGB)
try_keep_current_mode = False
if (rgbw_ha := kwargs.get(ATTR_RGBW_COLOR)) is not None:
# pylint: disable=invalid-name
*rgb, w = tuple(x / 255 for x in rgbw_ha) # type: ignore[assignment]
color_bri = max(rgb)
# normalize rgb
data["rgb"] = tuple(x / (color_bri or 1) for x in rgb)
data["white"] = w
data["color_brightness"] = color_bri
color_modes = _filter_color_modes(
color_modes, LightColorCapability.RGB | LightColorCapability.WHITE
)
try_keep_current_mode = False
if (rgbww_ha := kwargs.get(ATTR_RGBWW_COLOR)) is not None:
# pylint: disable=invalid-name
*rgb, cw, ww = tuple(x / 255 for x in rgbww_ha) # type: ignore[assignment]
color_bri = max(rgb)
# normalize rgb
data["rgb"] = tuple(x / (color_bri or 1) for x in rgb)
color_modes = _filter_color_modes(color_modes, LightColorCapability.RGB)
if _filter_color_modes(color_modes, LightColorCapability.COLD_WARM_WHITE):
# Device supports setting cwww values directly
data["cold_white"] = cw
data["warm_white"] = ww
color_modes = _filter_color_modes(
color_modes, LightColorCapability.COLD_WARM_WHITE
)
else:
# need to convert cw+ww part to white+color_temp
white = data["white"] = max(cw, ww)
if white != 0:
min_ct = self.min_mireds
max_ct = self.max_mireds
ct_ratio = ww / (cw + ww)
data["color_temperature"] = min_ct + ct_ratio * (max_ct - min_ct)
color_modes = _filter_color_modes(
color_modes,
LightColorCapability.COLOR_TEMPERATURE | LightColorCapability.WHITE,
)
try_keep_current_mode = False
data["color_brightness"] = color_bri
if (flash := kwargs.get(ATTR_FLASH)) is not None:
data["flash_length"] = FLASH_LENGTHS[flash]
if (transition := kwargs.get(ATTR_TRANSITION)) is not None:
data["transition_length"] = transition
if (color_temp := kwargs.get(ATTR_COLOR_TEMP)) is not None:
data["color_temperature"] = color_temp
if _filter_color_modes(color_modes, LightColorCapability.COLOR_TEMPERATURE):
color_modes = _filter_color_modes(
color_modes, LightColorCapability.COLOR_TEMPERATURE
)
else:
color_modes = _filter_color_modes(
color_modes, LightColorCapability.COLD_WARM_WHITE
)
try_keep_current_mode = False
if (effect := kwargs.get(ATTR_EFFECT)) is not None:
data["effect"] = effect
if (white_ha := kwargs.get(ATTR_WHITE)) is not None:
# ESPHome multiplies brightness and white together for final brightness
# HA only sends `white` in turn_on, and reads total brightness through brightness property
data["brightness"] = white_ha / 255
data["white"] = 1.0
color_modes = _filter_color_modes(
color_modes,
LightColorCapability.BRIGHTNESS | LightColorCapability.WHITE,
)
try_keep_current_mode = False
if self._supports_color_mode and color_modes:
if (
try_keep_current_mode
and self._state is not None
and self._state.color_mode in color_modes
):
# if possible, stay with the color mode that is already set
data["color_mode"] = self._state.color_mode
else:
# otherwise try the color mode with the least complexity (fewest capabilities set)
# popcount with bin() function because it appears to be the best way: https://stackoverflow.com/a/9831671
color_modes.sort(key=lambda mode: bin(mode).count("1"))
data["color_mode"] = color_modes[0]
await self._client.light_command(**data)
async def async_turn_off(self, **kwargs: Any) -> None:
"""Turn the entity off."""
data: dict[str, Any] = {"key": self._static_info.key, "state": False}
if ATTR_FLASH in kwargs:
data["flash_length"] = FLASH_LENGTHS[kwargs[ATTR_FLASH]]
if ATTR_TRANSITION in kwargs:
data["transition_length"] = kwargs[ATTR_TRANSITION]
await self._client.light_command(**data)
@esphome_state_property
def brightness(self) -> int | None:
"""Return the brightness of this light between 0..255."""
return round(self._state.brightness * 255)
@esphome_state_property
def color_mode(self) -> str | None:
"""Return the color mode of the light."""
if not self._supports_color_mode:
if not (supported := self.supported_color_modes):
return None
return next(iter(supported))
return _color_mode_to_ha(self._state.color_mode)
@esphome_state_property
def rgb_color(self) -> tuple[int, int, int] | None:
"""Return the rgb color value [int, int, int]."""
if not self._supports_color_mode:
return (
round(self._state.red * 255),
round(self._state.green * 255),
round(self._state.blue * 255),
)
return (
round(self._state.red * self._state.color_brightness * 255),
round(self._state.green * self._state.color_brightness * 255),
round(self._state.blue * self._state.color_brightness * 255),
)
@esphome_state_property
def rgbw_color(self) -> tuple[int, int, int, int] | None:
"""Return the rgbw color value [int, int, int, int]."""
white = round(self._state.white * 255)
rgb = cast("tuple[int, int, int]", self.rgb_color)
return (*rgb, white)
@esphome_state_property
def rgbww_color(self) -> tuple[int, int, int, int, int] | None:
"""Return the rgbww color value [int, int, int, int, int]."""
rgb = cast("tuple[int, int, int]", self.rgb_color)
if not _filter_color_modes(
self._native_supported_color_modes, LightColorCapability.COLD_WARM_WHITE
):
# Try to reverse white + color temp to cwww
min_ct = self._static_info.min_mireds
max_ct = self._static_info.max_mireds
color_temp = min(max(self._state.color_temperature, min_ct), max_ct)
white = self._state.white
ww_frac = (color_temp - min_ct) / (max_ct - min_ct)
cw_frac = 1 - ww_frac
return (
*rgb,
round(white * cw_frac / max(cw_frac, ww_frac) * 255),
round(white * ww_frac / max(cw_frac, ww_frac) * 255),
)
return (
*rgb,
round(self._state.cold_white * 255),
round(self._state.warm_white * 255),
)
@esphome_state_property
def color_temp(self) -> float | None: # type: ignore[override]
"""Return the CT color value in mireds."""
return self._state.color_temperature
@esphome_state_property
def effect(self) -> str | None:
"""Return the current effect."""
return self._state.effect
@property
def _native_supported_color_modes(self) -> list[int]:
return self._static_info.supported_color_modes_compat(self._api_version)
@property
def supported_features(self) -> int:
"""Flag supported features."""
flags = SUPPORT_FLASH
# All color modes except UNKNOWN,ON_OFF support transition
modes = self._native_supported_color_modes
if any(m not in (0, LightColorCapability.ON_OFF) for m in modes):
flags |= SUPPORT_TRANSITION
if self._static_info.effects:
flags |= SUPPORT_EFFECT
return flags
@property
def supported_color_modes(self) -> set[str] | None:
"""Flag supported color modes."""
supported = set(map(_color_mode_to_ha, self._native_supported_color_modes))
if COLOR_MODE_ONOFF in supported and len(supported) > 1:
supported.remove(COLOR_MODE_ONOFF)
if COLOR_MODE_BRIGHTNESS in supported and len(supported) > 1:
supported.remove(COLOR_MODE_BRIGHTNESS)
if COLOR_MODE_WHITE in supported and len(supported) == 1:
supported.remove(COLOR_MODE_WHITE)
return supported
@property
def effect_list(self) -> list[str]:
"""Return the list of supported effects."""
return self._static_info.effects
@property
def min_mireds(self) -> float: # type: ignore[override]
"""Return the coldest color_temp that this light supports."""
return self._static_info.min_mireds
@property
def max_mireds(self) -> float: # type: ignore[override]
"""Return the warmest color_temp that this light supports."""
return self._static_info.max_mireds