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Convert template light to use async_track_template_result (#39045)

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* Convert template lock to use async_track_template_result

* Convert template switch to use async_track_template_result

* Convert template fan to use async_track_template_result

* Convert template binary_sensor to use async_track_template_result

Co-Authored-By: Penny Wood <Swamp-Ig@users.noreply.github.com>

* Convert template cover to use async_track_template_result

* Convert template light to use async_track_template_result

Co-authored-by: Penny Wood <Swamp-Ig@users.noreply.github.com>
This commit is contained in:
J. Nick Koston 2020-08-20 09:29:41 -05:00 committed by GitHub
parent e861957937
commit b4f0485be2
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1 changed files with 86 additions and 193 deletions
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279
homeassistant/components/template/light.py
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@ -23,8 +23,6 @@ from homeassistant.const import (
CONF_LIGHTS,
CONF_UNIQUE_ID,
CONF_VALUE_TEMPLATE,
EVENT_HOMEASSISTANT_START,
MATCH_ALL,
STATE_OFF,
STATE_ON,
)
@ -33,11 +31,10 @@ from homeassistant.exceptions import TemplateError
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.config_validation import PLATFORM_SCHEMA
from homeassistant.helpers.entity import async_generate_entity_id
from homeassistant.helpers.event import async_track_state_change_event
from homeassistant.helpers.script import Script
from . import extract_entities, initialise_templates
from .const import CONF_AVAILABILITY_TEMPLATE
from .template_entity import TemplateEntityWithAvailabilityAndImages
_LOGGER = logging.getLogger(__name__)
_VALID_STATES = [STATE_ON, STATE_OFF, "true", "false"]
@ -108,22 +105,6 @@ async def async_setup_platform(hass, config, async_add_entities, discovery_info=
white_value_action = device_config.get(CONF_WHITE_VALUE_ACTION)
white_value_template = device_config.get(CONF_WHITE_VALUE_TEMPLATE)
templates = {
CONF_VALUE_TEMPLATE: state_template,
CONF_ICON_TEMPLATE: icon_template,
CONF_ENTITY_PICTURE_TEMPLATE: entity_picture_template,
CONF_AVAILABILITY_TEMPLATE: availability_template,
CONF_LEVEL_TEMPLATE: level_template,
CONF_TEMPERATURE_TEMPLATE: temperature_template,
CONF_COLOR_TEMPLATE: color_template,
CONF_WHITE_VALUE_TEMPLATE: white_value_template,
}
initialise_templates(hass, templates)
entity_ids = extract_entities(
device, "light", device_config.get(CONF_ENTITY_ID), templates
)
lights.append(
LightTemplate(
hass,
@ -137,7 +118,6 @@ async def async_setup_platform(hass, config, async_add_entities, discovery_info=
off_action,
level_action,
level_template,
entity_ids,
temperature_action,
temperature_template,
color_action,
@ -151,7 +131,7 @@ async def async_setup_platform(hass, config, async_add_entities, discovery_info=
async_add_entities(lights)
class LightTemplate(LightEntity):
class LightTemplate(TemplateEntityWithAvailabilityAndImages, LightEntity):
"""Representation of a templated Light, including dimmable."""
def __init__(
@ -167,7 +147,6 @@ class LightTemplate(LightEntity):
off_action,
level_action,
level_template,
entity_ids,
temperature_action,
temperature_template,
color_action,
@ -177,15 +156,14 @@ class LightTemplate(LightEntity):
unique_id,
):
"""Initialize the light."""
self.hass = hass
super().__init__(
availability_template, icon_template, entity_picture_template,
)
self.entity_id = async_generate_entity_id(
ENTITY_ID_FORMAT, device_id, hass=hass
)
self._name = friendly_name
self._template = state_template
self._icon_template = icon_template
self._entity_picture_template = entity_picture_template
self._availability_template = availability_template
domain = __name__.split(".")[-2]
self._on_script = Script(hass, on_action, friendly_name, domain)
self._off_script = Script(hass, off_action, friendly_name, domain)
@ -211,14 +189,10 @@ class LightTemplate(LightEntity):
self._white_value_template = white_value_template
self._state = False
self._icon = None
self._entity_picture = None
self._brightness = None
self._temperature = None
self._color = None
self._white_value = None
self._entities = entity_ids
self._available = True
self._unique_id = unique_id
@property
@ -270,56 +244,46 @@ class LightTemplate(LightEntity):
"""Return true if device is on."""
return self._state
@property
def should_poll(self):
"""Return the polling state."""
return False
@property
def icon(self):
"""Return the icon to use in the frontend, if any."""
return self._icon
@property
def entity_picture(self):
"""Return the entity picture to use in the frontend, if any."""
return self._entity_picture
@property
def available(self) -> bool:
"""Return if the device is available."""
return self._available
async def async_added_to_hass(self):
"""Register callbacks."""
@callback
def template_light_state_listener(event):
"""Handle target device state changes."""
self.async_schedule_update_ha_state(True)
@callback
def template_light_startup(event):
"""Update template on startup."""
if (
self._template is not None
or self._level_template is not None
or self._temperature_template is not None
or self._color_template is not None
or self._white_value_template is not None
or self._availability_template is not None
):
if self._entities != MATCH_ALL:
# Track state change only for valid templates
async_track_state_change_event(
self.hass, self._entities, template_light_state_listener
)
self.async_schedule_update_ha_state(True)
self.hass.bus.async_listen_once(
EVENT_HOMEASSISTANT_START, template_light_startup
)
if self._template:
self.add_template_attribute(
"_state", self._template, None, self._update_state
)
if self._level_template:
self.add_template_attribute(
"_brightness",
self._level_template,
None,
self._update_brightness,
none_on_template_error=True,
)
if self._temperature_template:
self.add_template_attribute(
"_temperature",
self._temperature_template,
None,
self._update_temperature,
none_on_template_error=True,
)
if self._color_template:
self.add_template_attribute(
"_color",
self._color_template,
None,
self._update_color,
none_on_template_error=True,
)
if self._white_value_template:
self.add_template_attribute(
"_white_value",
self._white_value_template,
None,
self._update_white_value,
none_on_template_error=True,
)
await super().async_added_to_hass()
async def async_turn_on(self, **kwargs):
"""Turn the light on."""
@ -382,61 +346,10 @@ class LightTemplate(LightEntity):
self._state = False
self.async_write_ha_state()
async def async_update(self):
"""Update from templates."""
self.update_state()
self.update_brightness()
self.update_temperature()
self.update_color()
self.update_white_value()
for property_name, template in (
("_icon", self._icon_template),
("_entity_picture", self._entity_picture_template),
("_available", self._availability_template),
):
if template is None:
continue
try:
value = template.async_render()
if property_name == "_available":
value = value.lower() == "true"
setattr(self, property_name, value)
except TemplateError as ex:
friendly_property_name = property_name[1:].replace("_", " ")
if ex.args and ex.args[0].startswith(
"UndefinedError: 'None' has no attribute"
):
# Common during HA startup - so just a warning
_LOGGER.warning(
"Could not render %s template %s, the state is unknown",
friendly_property_name,
self._name,
)
return
try:
setattr(self, property_name, getattr(super(), property_name))
except AttributeError:
_LOGGER.error(
"Could not render %s template %s: %s",
friendly_property_name,
self._name,
ex,
)
@callback
def update_brightness(self):
def _update_brightness(self, brightness):
"""Update the brightness from the template."""
if self._level_template is None:
return
try:
brightness = self._level_template.async_render()
if brightness in ("None", ""):
self._brightness = None
return
@ -453,17 +366,11 @@ class LightTemplate(LightEntity):
exc_info=True,
)
self._brightness = None
except TemplateError:
_LOGGER.error("Invalid template", exc_info=True)
self._brightness = None
@callback
def update_white_value(self):
def _update_white_value(self, white_value):
"""Update the white value from the template."""
if self._white_value_template is None:
return
try:
white_value = self._white_value_template.async_render()
if white_value in ("None", ""):
self._white_value = None
return
@ -480,37 +387,34 @@ class LightTemplate(LightEntity):
exc_info=True,
)
self._white_value = None
except TemplateError as ex:
_LOGGER.error(ex)
self._state = None
@callback
def update_state(self):
def _update_state(self, result):
"""Update the state from the template."""
if self._template is None:
if isinstance(result, TemplateError):
# This behavior is legacy
self._state = False
if not self._availability_template:
self._available = True
return
try:
state = self._template.async_render().lower()
if state in _VALID_STATES:
self._state = state in ("true", STATE_ON)
else:
_LOGGER.error(
"Received invalid light is_on state: %s. Expected: %s",
state,
", ".join(_VALID_STATES),
)
self._state = None
except TemplateError as ex:
_LOGGER.error(ex)
state = str(result).lower()
if state in _VALID_STATES:
self._state = state in ("true", STATE_ON)
else:
_LOGGER.error(
"Received invalid light is_on state: %s. Expected: %s",
state,
", ".join(_VALID_STATES),
)
self._state = None
@callback
def update_temperature(self):
def _update_temperature(self, render):
"""Update the temperature from the template."""
if self._temperature_template is None:
return
try:
render = self._temperature_template.async_render()
if render in ("None", ""):
self._temperature = None
return
@ -530,41 +434,30 @@ class LightTemplate(LightEntity):
exc_info=True,
)
self._temperature = None
except TemplateError:
_LOGGER.error("Cannot evaluate temperature template", exc_info=True)
self._temperature = None
@callback
def update_color(self):
def _update_color(self, render):
"""Update the hs_color from the template."""
if self._color_template is None:
return
try:
render = self._color_template.async_render()
if render in ("None", ""):
self._color = None
return
h_str, s_str = map(
float, render.replace("(", "").replace(")", "").split(",", 1)
)
if (
h_str is not None
and s_str is not None
and 0 <= h_str <= 360
and 0 <= s_str <= 100
):
self._color = (h_str, s_str)
elif h_str is not None and s_str is not None:
_LOGGER.error(
"Received invalid hs_color : (%s, %s). Expected: (0-360, 0-100)",
h_str,
s_str,
)
self._color = None
else:
_LOGGER.error("Received invalid hs_color : (%s)", render)
self._color = None
except TemplateError:
_LOGGER.error("Cannot evaluate hs_color template", exc_info=True)
if render in ("None", ""):
self._color = None
return
h_str, s_str = map(
float, render.replace("(", "").replace(")", "").split(",", 1)
)
if (
h_str is not None
and s_str is not None
and 0 <= h_str <= 360
and 0 <= s_str <= 100
):
self._color = (h_str, s_str)
elif h_str is not None and s_str is not None:
_LOGGER.error(
"Received invalid hs_color : (%s, %s). Expected: (0-360, 0-100)",
h_str,
s_str,
)
self._color = None
else:
_LOGGER.error("Received invalid hs_color : (%s)", render)
self._color = None