Files
core/homeassistant/helpers/condition.py
2025-10-09 08:48:41 +02:00

1283 lines
41 KiB
Python

"""Offer reusable conditions."""
from __future__ import annotations
import abc
from collections import deque
from collections.abc import Callable, Container, Coroutine, Generator, Iterable
from contextlib import contextmanager
from dataclasses import dataclass
from datetime import datetime, time as dt_time, timedelta
import functools as ft
import inspect
import logging
import re
import sys
from typing import TYPE_CHECKING, Any, Protocol, cast
import voluptuous as vol
from homeassistant.const import (
ATTR_DEVICE_CLASS,
CONF_ABOVE,
CONF_AFTER,
CONF_ATTRIBUTE,
CONF_BEFORE,
CONF_BELOW,
CONF_CONDITION,
CONF_DEVICE_ID,
CONF_ENABLED,
CONF_ENTITY_ID,
CONF_FOR,
CONF_ID,
CONF_MATCH,
CONF_OPTIONS,
CONF_SELECTOR,
CONF_STATE,
CONF_TARGET,
CONF_VALUE_TEMPLATE,
CONF_WEEKDAY,
ENTITY_MATCH_ALL,
ENTITY_MATCH_ANY,
STATE_UNAVAILABLE,
STATE_UNKNOWN,
WEEKDAYS,
)
from homeassistant.core import HomeAssistant, State, callback
from homeassistant.exceptions import (
ConditionError,
ConditionErrorContainer,
ConditionErrorIndex,
ConditionErrorMessage,
HomeAssistantError,
TemplateError,
)
from homeassistant.loader import (
Integration,
IntegrationNotFound,
async_get_integration,
async_get_integrations,
)
from homeassistant.util import dt as dt_util
from homeassistant.util.async_ import run_callback_threadsafe
from homeassistant.util.hass_dict import HassKey
from homeassistant.util.yaml import load_yaml_dict
from . import config_validation as cv, entity_registry as er, selector
from .automation import get_absolute_description_key, get_relative_description_key
from .integration_platform import async_process_integration_platforms
from .selector import TargetSelector
from .template import Template, render_complex
from .trace import (
TraceElement,
trace_append_element,
trace_path,
trace_path_get,
trace_stack_cv,
trace_stack_pop,
trace_stack_push,
trace_stack_top,
)
from .typing import ConfigType, TemplateVarsType
ASYNC_FROM_CONFIG_FORMAT = "async_{}_from_config"
FROM_CONFIG_FORMAT = "{}_from_config"
VALIDATE_CONFIG_FORMAT = "{}_validate_config"
_LOGGER = logging.getLogger(__name__)
_PLATFORM_ALIASES: dict[str | None, str | None] = {
"and": None,
"device": "device_automation",
"not": None,
"numeric_state": None,
"or": None,
"state": None,
"template": None,
"time": None,
"trigger": None,
}
INPUT_ENTITY_ID = re.compile(
r"^input_(?:select|text|number|boolean|datetime)\.(?!.+__)(?!_)[\da-z_]+(?<!_)$"
)
CONDITION_DESCRIPTION_CACHE: HassKey[dict[str, dict[str, Any] | None]] = HassKey(
"condition_description_cache"
)
CONDITION_PLATFORM_SUBSCRIPTIONS: HassKey[
list[Callable[[set[str]], Coroutine[Any, Any, None]]]
] = HassKey("condition_platform_subscriptions")
CONDITIONS: HassKey[dict[str, str]] = HassKey("conditions")
# Basic schemas to sanity check the condition descriptions,
# full validation is done by hassfest.conditions
_FIELD_DESCRIPTION_SCHEMA = vol.Schema(
{
vol.Optional(CONF_SELECTOR): selector.validate_selector,
},
extra=vol.ALLOW_EXTRA,
)
_CONDITION_DESCRIPTION_SCHEMA = vol.Schema(
{
vol.Optional("target"): TargetSelector.CONFIG_SCHEMA,
vol.Optional("fields"): vol.Schema({str: _FIELD_DESCRIPTION_SCHEMA}),
},
extra=vol.ALLOW_EXTRA,
)
def starts_with_dot(key: str) -> str:
"""Check if key starts with dot."""
if not key.startswith("."):
raise vol.Invalid("Key does not start with .")
return key
_CONDITIONS_DESCRIPTION_SCHEMA = vol.Schema(
{
vol.Remove(vol.All(str, starts_with_dot)): object,
cv.underscore_slug: vol.Any(None, _CONDITION_DESCRIPTION_SCHEMA),
}
)
async def async_setup(hass: HomeAssistant) -> None:
"""Set up the condition helper."""
hass.data[CONDITION_DESCRIPTION_CACHE] = {}
hass.data[CONDITION_PLATFORM_SUBSCRIPTIONS] = []
hass.data[CONDITIONS] = {}
await async_process_integration_platforms(
hass, "condition", _register_condition_platform, wait_for_platforms=True
)
@callback
def async_subscribe_platform_events(
hass: HomeAssistant,
on_event: Callable[[set[str]], Coroutine[Any, Any, None]],
) -> Callable[[], None]:
"""Subscribe to condition platform events."""
condition_platform_event_subscriptions = hass.data[CONDITION_PLATFORM_SUBSCRIPTIONS]
def remove_subscription() -> None:
condition_platform_event_subscriptions.remove(on_event)
condition_platform_event_subscriptions.append(on_event)
return remove_subscription
async def _register_condition_platform(
hass: HomeAssistant, integration_domain: str, platform: ConditionProtocol
) -> None:
"""Register a condition platform."""
new_conditions: set[str] = set()
if hasattr(platform, "async_get_conditions"):
for condition_key in await platform.async_get_conditions(hass):
condition_key = get_absolute_description_key(
integration_domain, condition_key
)
hass.data[CONDITIONS][condition_key] = integration_domain
new_conditions.add(condition_key)
else:
_LOGGER.debug(
"Integration %s does not provide condition support, skipping",
integration_domain,
)
return
# We don't use gather here because gather adds additional overhead
# when wrapping each coroutine in a task, and we expect our listeners
# to call condition.async_get_all_descriptions which will only yield
# the first time it's called, after that it returns cached data.
for listener in hass.data[CONDITION_PLATFORM_SUBSCRIPTIONS]:
try:
await listener(new_conditions)
except Exception:
_LOGGER.exception("Error while notifying condition platform listener")
_CONDITION_SCHEMA = vol.Schema(
{
**cv.CONDITION_BASE_SCHEMA,
vol.Required(CONF_CONDITION): str,
vol.Optional(CONF_OPTIONS): object,
vol.Optional(CONF_TARGET): cv.TARGET_FIELDS,
}
)
class Condition(abc.ABC):
"""Condition class."""
@classmethod
async def async_validate_complete_config(
cls, hass: HomeAssistant, complete_config: ConfigType
) -> ConfigType:
"""Validate complete config.
The complete config includes fields that are generic to all conditions,
such as the alias.
This method should be overridden by conditions that need to migrate
from the old-style config.
"""
complete_config = _CONDITION_SCHEMA(complete_config)
specific_config: ConfigType = {}
for key in (CONF_OPTIONS, CONF_TARGET):
if key in complete_config:
specific_config[key] = complete_config.pop(key)
specific_config = await cls.async_validate_config(hass, specific_config)
for key in (CONF_OPTIONS, CONF_TARGET):
if key in specific_config:
complete_config[key] = specific_config[key]
return complete_config
@classmethod
@abc.abstractmethod
async def async_validate_config(
cls, hass: HomeAssistant, config: ConfigType
) -> ConfigType:
"""Validate config."""
def __init__(self, hass: HomeAssistant, config: ConditionConfig) -> None:
"""Initialize condition."""
@abc.abstractmethod
async def async_get_checker(self) -> ConditionCheckerType:
"""Get the condition checker."""
class ConditionProtocol(Protocol):
"""Define the format of condition modules."""
async def async_get_conditions(
self, hass: HomeAssistant
) -> dict[str, type[Condition]]:
"""Return the conditions provided by this integration."""
@dataclass(slots=True)
class ConditionConfig:
"""Condition config."""
options: dict[str, Any] | None = None
target: dict[str, Any] | None = None
type ConditionCheckerType = Callable[[HomeAssistant, TemplateVarsType], bool | None]
def condition_trace_append(variables: TemplateVarsType, path: str) -> TraceElement:
"""Append a TraceElement to trace[path]."""
trace_element = TraceElement(variables, path)
trace_append_element(trace_element)
return trace_element
def condition_trace_set_result(result: bool, **kwargs: Any) -> None:
"""Set the result of TraceElement at the top of the stack."""
node = trace_stack_top(trace_stack_cv)
# The condition function may be called directly, in which case tracing
# is not setup
if not node:
return
node.set_result(result=result, **kwargs)
def condition_trace_update_result(**kwargs: Any) -> None:
"""Update the result of TraceElement at the top of the stack."""
node = trace_stack_top(trace_stack_cv)
# The condition function may be called directly, in which case tracing
# is not setup
if not node:
return
node.update_result(**kwargs)
@contextmanager
def trace_condition(variables: TemplateVarsType) -> Generator[TraceElement]:
"""Trace condition evaluation."""
should_pop = True
trace_element = trace_stack_top(trace_stack_cv)
if trace_element and trace_element.reuse_by_child:
should_pop = False
trace_element.reuse_by_child = False
else:
trace_element = condition_trace_append(variables, trace_path_get())
trace_stack_push(trace_stack_cv, trace_element)
try:
yield trace_element
except Exception as ex:
trace_element.set_error(ex)
raise
finally:
if should_pop:
trace_stack_pop(trace_stack_cv)
def trace_condition_function(condition: ConditionCheckerType) -> ConditionCheckerType:
"""Wrap a condition function to enable basic tracing."""
@ft.wraps(condition)
def wrapper(hass: HomeAssistant, variables: TemplateVarsType = None) -> bool | None:
"""Trace condition."""
with trace_condition(variables):
result = condition(hass, variables)
condition_trace_update_result(result=result)
return result
return wrapper
async def _async_get_condition_platform(
hass: HomeAssistant, condition_key: str
) -> tuple[str, ConditionProtocol | None]:
platform_and_sub_type = condition_key.split(".")
platform: str | None = platform_and_sub_type[0]
platform = _PLATFORM_ALIASES.get(platform, platform)
if platform is None:
return "", None
try:
integration = await async_get_integration(hass, platform)
except IntegrationNotFound:
raise HomeAssistantError(
f'Invalid condition "{condition_key}" specified'
) from None
try:
return platform, await integration.async_get_platform("condition")
except ImportError:
raise HomeAssistantError(
f"Integration '{platform}' does not provide condition support"
) from None
async def async_from_config(
hass: HomeAssistant,
config: ConfigType,
) -> ConditionCheckerType:
"""Turn a condition configuration into a method.
Should be run on the event loop.
"""
# Check if condition is not enabled
if CONF_ENABLED in config:
enabled = config[CONF_ENABLED]
if isinstance(enabled, Template):
try:
enabled = enabled.async_render(limited=True)
except TemplateError as err:
raise HomeAssistantError(
f"Error rendering condition enabled template: {err}"
) from err
if not enabled:
@trace_condition_function
def disabled_condition(
hass: HomeAssistant, variables: TemplateVarsType = None
) -> bool | None:
"""Condition not enabled, will act as if it didn't exist."""
return None
return disabled_condition
condition_key: str = config[CONF_CONDITION]
factory: Any = None
platform_domain, platform = await _async_get_condition_platform(hass, condition_key)
if platform is not None:
condition_descriptors = await platform.async_get_conditions(hass)
relative_condition_key = get_relative_description_key(
platform_domain, condition_key
)
condition_cls = condition_descriptors[relative_condition_key]
condition = condition_cls(
hass,
ConditionConfig(
options=config.get(CONF_OPTIONS),
target=config.get(CONF_TARGET),
),
)
return await condition.async_get_checker()
for fmt in (ASYNC_FROM_CONFIG_FORMAT, FROM_CONFIG_FORMAT):
factory = getattr(sys.modules[__name__], fmt.format(condition_key), None)
if factory:
break
# Check for partials to properly determine if coroutine function
check_factory = factory
while isinstance(check_factory, ft.partial):
check_factory = check_factory.func
if inspect.iscoroutinefunction(check_factory):
return cast(ConditionCheckerType, await factory(hass, config))
return cast(ConditionCheckerType, factory(config))
async def async_and_from_config(
hass: HomeAssistant, config: ConfigType
) -> ConditionCheckerType:
"""Create multi condition matcher using 'AND'."""
checks = [await async_from_config(hass, entry) for entry in config["conditions"]]
@trace_condition_function
def if_and_condition(
hass: HomeAssistant, variables: TemplateVarsType = None
) -> bool:
"""Test and condition."""
errors = []
for index, check in enumerate(checks):
try:
with trace_path(["conditions", str(index)]):
if check(hass, variables) is False:
return False
except ConditionError as ex:
errors.append(
ConditionErrorIndex("and", index=index, total=len(checks), error=ex)
)
# Raise the errors if no check was false
if errors:
raise ConditionErrorContainer("and", errors=errors)
return True
return if_and_condition
async def async_or_from_config(
hass: HomeAssistant, config: ConfigType
) -> ConditionCheckerType:
"""Create multi condition matcher using 'OR'."""
checks = [await async_from_config(hass, entry) for entry in config["conditions"]]
@trace_condition_function
def if_or_condition(
hass: HomeAssistant, variables: TemplateVarsType = None
) -> bool:
"""Test or condition."""
errors = []
for index, check in enumerate(checks):
try:
with trace_path(["conditions", str(index)]):
if check(hass, variables) is True:
return True
except ConditionError as ex:
errors.append(
ConditionErrorIndex("or", index=index, total=len(checks), error=ex)
)
# Raise the errors if no check was true
if errors:
raise ConditionErrorContainer("or", errors=errors)
return False
return if_or_condition
async def async_not_from_config(
hass: HomeAssistant, config: ConfigType
) -> ConditionCheckerType:
"""Create multi condition matcher using 'NOT'."""
checks = [await async_from_config(hass, entry) for entry in config["conditions"]]
@trace_condition_function
def if_not_condition(
hass: HomeAssistant, variables: TemplateVarsType = None
) -> bool:
"""Test not condition."""
errors = []
for index, check in enumerate(checks):
try:
with trace_path(["conditions", str(index)]):
if check(hass, variables):
return False
except ConditionError as ex:
errors.append(
ConditionErrorIndex("not", index=index, total=len(checks), error=ex)
)
# Raise the errors if no check was true
if errors:
raise ConditionErrorContainer("not", errors=errors)
return True
return if_not_condition
def numeric_state(
hass: HomeAssistant,
entity: str | State | None,
below: float | str | None = None,
above: float | str | None = None,
value_template: Template | None = None,
variables: TemplateVarsType = None,
) -> bool:
"""Test a numeric state condition."""
return run_callback_threadsafe(
hass.loop,
async_numeric_state,
hass,
entity,
below,
above,
value_template,
variables,
).result()
def async_numeric_state(
hass: HomeAssistant,
entity: str | State | None,
below: float | str | None = None,
above: float | str | None = None,
value_template: Template | None = None,
variables: TemplateVarsType = None,
attribute: str | None = None,
) -> bool:
"""Test a numeric state condition."""
if entity is None:
raise ConditionErrorMessage("numeric_state", "no entity specified")
if isinstance(entity, str):
entity_id = entity
if (entity := hass.states.get(entity)) is None:
raise ConditionErrorMessage("numeric_state", f"unknown entity {entity_id}")
else:
entity_id = entity.entity_id
if attribute is not None and attribute not in entity.attributes:
condition_trace_set_result(
False,
message=f"attribute '{attribute}' of entity {entity_id} does not exist",
)
return False
value: Any = None
if value_template is None:
if attribute is None:
value = entity.state
else:
value = entity.attributes.get(attribute)
else:
variables = dict(variables or {})
variables["state"] = entity
try:
value = value_template.async_render(variables)
except TemplateError as ex:
raise ConditionErrorMessage(
"numeric_state", f"template error: {ex}"
) from ex
# Known states or attribute values that never match the numeric condition
if value in (None, STATE_UNAVAILABLE, STATE_UNKNOWN):
condition_trace_set_result(
False,
message=f"value '{value}' is non-numeric and treated as False",
)
return False
try:
fvalue = float(value)
except (ValueError, TypeError) as ex:
raise ConditionErrorMessage(
"numeric_state",
f"entity {entity_id} state '{value}' cannot be processed as a number",
) from ex
if below is not None:
if isinstance(below, str):
if not (below_entity := hass.states.get(below)):
raise ConditionErrorMessage(
"numeric_state", f"unknown 'below' entity {below}"
)
if below_entity.state in (
STATE_UNAVAILABLE,
STATE_UNKNOWN,
):
return False
try:
if fvalue >= float(below_entity.state):
condition_trace_set_result(
False,
state=fvalue,
wanted_state_below=float(below_entity.state),
)
return False
except (ValueError, TypeError) as ex:
raise ConditionErrorMessage(
"numeric_state",
(
f"the 'below' entity {below} state '{below_entity.state}'"
" cannot be processed as a number"
),
) from ex
elif fvalue >= below:
condition_trace_set_result(False, state=fvalue, wanted_state_below=below)
return False
if above is not None:
if isinstance(above, str):
if not (above_entity := hass.states.get(above)):
raise ConditionErrorMessage(
"numeric_state", f"unknown 'above' entity {above}"
)
if above_entity.state in (
STATE_UNAVAILABLE,
STATE_UNKNOWN,
):
return False
try:
if fvalue <= float(above_entity.state):
condition_trace_set_result(
False,
state=fvalue,
wanted_state_above=float(above_entity.state),
)
return False
except (ValueError, TypeError) as ex:
raise ConditionErrorMessage(
"numeric_state",
(
f"the 'above' entity {above} state '{above_entity.state}'"
" cannot be processed as a number"
),
) from ex
elif fvalue <= above:
condition_trace_set_result(False, state=fvalue, wanted_state_above=above)
return False
condition_trace_set_result(True, state=fvalue)
return True
def async_numeric_state_from_config(config: ConfigType) -> ConditionCheckerType:
"""Wrap action method with state based condition."""
entity_ids = config.get(CONF_ENTITY_ID, [])
attribute = config.get(CONF_ATTRIBUTE)
below = config.get(CONF_BELOW)
above = config.get(CONF_ABOVE)
value_template = config.get(CONF_VALUE_TEMPLATE)
@trace_condition_function
def if_numeric_state(
hass: HomeAssistant, variables: TemplateVarsType = None
) -> bool:
"""Test numeric state condition."""
errors = []
for index, entity_id in enumerate(entity_ids):
try:
with trace_path(["entity_id", str(index)]), trace_condition(variables):
if not async_numeric_state(
hass,
entity_id,
below,
above,
value_template,
variables,
attribute,
):
return False
except ConditionError as ex:
errors.append(
ConditionErrorIndex(
"numeric_state", index=index, total=len(entity_ids), error=ex
)
)
# Raise the errors if no check was false
if errors:
raise ConditionErrorContainer("numeric_state", errors=errors)
return True
return if_numeric_state
def state(
hass: HomeAssistant,
entity: str | State | None,
req_state: Any,
for_period: timedelta | None = None,
attribute: str | None = None,
variables: TemplateVarsType = None,
) -> bool:
"""Test if state matches requirements.
Async friendly.
"""
if entity is None:
raise ConditionErrorMessage("state", "no entity specified")
if isinstance(entity, str):
entity_id = entity
if (entity := hass.states.get(entity)) is None:
raise ConditionErrorMessage("state", f"unknown entity {entity_id}")
else:
entity_id = entity.entity_id
if attribute is not None and attribute not in entity.attributes:
condition_trace_set_result(
False,
message=f"attribute '{attribute}' of entity {entity_id} does not exist",
)
return False
assert isinstance(entity, State)
if attribute is None:
value: Any = entity.state
else:
value = entity.attributes.get(attribute)
if not isinstance(req_state, list):
req_state = [req_state]
is_state = False
for req_state_value in req_state:
state_value = req_state_value
if (
isinstance(req_state_value, str)
and INPUT_ENTITY_ID.match(req_state_value) is not None
):
if not (state_entity := hass.states.get(req_state_value)):
raise ConditionErrorMessage(
"state", f"the 'state' entity {req_state_value} is unavailable"
)
state_value = state_entity.state
is_state = value == state_value
if is_state:
break
if for_period is None or not is_state:
condition_trace_set_result(is_state, state=value, wanted_state=state_value)
return is_state
try:
for_period = cv.positive_time_period(render_complex(for_period, variables))
except TemplateError as ex:
raise ConditionErrorMessage("state", f"template error: {ex}") from ex
except vol.Invalid as ex:
raise ConditionErrorMessage("state", f"schema error: {ex}") from ex
duration = dt_util.utcnow() - cast(timedelta, for_period)
duration_ok = duration > entity.last_changed
condition_trace_set_result(duration_ok, state=value, duration=duration)
return duration_ok
def state_from_config(config: ConfigType) -> ConditionCheckerType:
"""Wrap action method with state based condition."""
entity_ids = config.get(CONF_ENTITY_ID, [])
req_states: str | list[str] = config.get(CONF_STATE, [])
for_period = config.get(CONF_FOR)
attribute = config.get(CONF_ATTRIBUTE)
match = config.get(CONF_MATCH, ENTITY_MATCH_ALL)
if not isinstance(req_states, list):
req_states = [req_states]
@trace_condition_function
def if_state(hass: HomeAssistant, variables: TemplateVarsType = None) -> bool:
"""Test if condition."""
errors = []
result: bool = match != ENTITY_MATCH_ANY
for index, entity_id in enumerate(entity_ids):
try:
with trace_path(["entity_id", str(index)]), trace_condition(variables):
if state(
hass, entity_id, req_states, for_period, attribute, variables
):
result = True
elif match == ENTITY_MATCH_ALL:
return False
except ConditionError as ex:
errors.append(
ConditionErrorIndex(
"state", index=index, total=len(entity_ids), error=ex
)
)
# Raise the errors if no check was false
if errors:
raise ConditionErrorContainer("state", errors=errors)
return result
return if_state
def template(
hass: HomeAssistant, value_template: Template, variables: TemplateVarsType = None
) -> bool:
"""Test if template condition matches."""
return run_callback_threadsafe(
hass.loop, async_template, hass, value_template, variables
).result()
def async_template(
hass: HomeAssistant,
value_template: Template,
variables: TemplateVarsType = None,
trace_result: bool = True,
) -> bool:
"""Test if template condition matches."""
try:
info = value_template.async_render_to_info(variables, parse_result=False)
value = info.result()
except TemplateError as ex:
raise ConditionErrorMessage("template", str(ex)) from ex
result = value.lower() == "true"
if trace_result:
condition_trace_set_result(result, entities=list(info.entities))
return result
def async_template_from_config(config: ConfigType) -> ConditionCheckerType:
"""Wrap action method with state based condition."""
value_template = cast(Template, config.get(CONF_VALUE_TEMPLATE))
@trace_condition_function
def template_if(hass: HomeAssistant, variables: TemplateVarsType = None) -> bool:
"""Validate template based if-condition."""
return async_template(hass, value_template, variables)
return template_if
def time(
hass: HomeAssistant,
before: dt_time | str | None = None,
after: dt_time | str | None = None,
weekday: str | Container[str] | None = None,
) -> bool:
"""Test if local time condition matches.
Handle the fact that time is continuous and we may be testing for
a period that crosses midnight. In that case it is easier to test
for the opposite. "(23:59 <= now < 00:01)" would be the same as
"not (00:01 <= now < 23:59)".
"""
from homeassistant.components.sensor import SensorDeviceClass # noqa: PLC0415
now = dt_util.now()
now_time = now.time()
if after is None:
after = dt_time(0)
elif isinstance(after, str):
if not (after_entity := hass.states.get(after)):
raise ConditionErrorMessage("time", f"unknown 'after' entity {after}")
if after_entity.domain == "input_datetime":
after = dt_time(
after_entity.attributes.get("hour", 23),
after_entity.attributes.get("minute", 59),
after_entity.attributes.get("second", 59),
)
elif after_entity.domain == "time" and after_entity.state not in (
STATE_UNAVAILABLE,
STATE_UNKNOWN,
):
after = datetime.strptime(after_entity.state, "%H:%M:%S").time()
elif (
after_entity.attributes.get(ATTR_DEVICE_CLASS)
== SensorDeviceClass.TIMESTAMP
) and after_entity.state not in (
STATE_UNAVAILABLE,
STATE_UNKNOWN,
):
after_datetime = dt_util.parse_datetime(after_entity.state)
if after_datetime is None:
return False
after = dt_util.as_local(after_datetime).time()
else:
return False
if before is None:
before = dt_time(23, 59, 59, 999999)
elif isinstance(before, str):
if not (before_entity := hass.states.get(before)):
raise ConditionErrorMessage("time", f"unknown 'before' entity {before}")
if before_entity.domain == "input_datetime":
before = dt_time(
before_entity.attributes.get("hour", 23),
before_entity.attributes.get("minute", 59),
before_entity.attributes.get("second", 59),
)
elif before_entity.domain == "time":
try:
before = datetime.strptime(before_entity.state, "%H:%M:%S").time()
except ValueError:
return False
elif (
before_entity.attributes.get(ATTR_DEVICE_CLASS)
== SensorDeviceClass.TIMESTAMP
) and before_entity.state not in (
STATE_UNAVAILABLE,
STATE_UNKNOWN,
):
before_timedatime = dt_util.parse_datetime(before_entity.state)
if before_timedatime is None:
return False
before = dt_util.as_local(before_timedatime).time()
else:
return False
if after < before:
condition_trace_update_result(after=after, now_time=now_time, before=before)
if not after <= now_time < before:
return False
else:
condition_trace_update_result(after=after, now_time=now_time, before=before)
if before <= now_time < after:
return False
if weekday is not None:
now_weekday = WEEKDAYS[now.weekday()]
# Check if weekday is an entity_id
if isinstance(weekday, str) and weekday.startswith("input_weekday."):
if (weekday_state := hass.states.get(weekday)) is None:
condition_trace_update_result(weekday=weekday, now_weekday=now_weekday)
return False
entity_weekdays = weekday_state.attributes.get("weekdays", [])
condition_trace_update_result(
weekday=weekday,
now_weekday=now_weekday,
entity_weekdays=entity_weekdays,
)
if now_weekday not in entity_weekdays:
return False
else:
condition_trace_update_result(weekday=weekday, now_weekday=now_weekday)
if (
isinstance(weekday, str) and weekday != now_weekday
) or now_weekday not in weekday:
return False
return True
def time_from_config(config: ConfigType) -> ConditionCheckerType:
"""Wrap action method with time based condition."""
before = config.get(CONF_BEFORE)
after = config.get(CONF_AFTER)
weekday = config.get(CONF_WEEKDAY)
@trace_condition_function
def time_if(hass: HomeAssistant, variables: TemplateVarsType = None) -> bool:
"""Validate time based if-condition."""
return time(hass, before, after, weekday)
return time_if
async def async_trigger_from_config(
hass: HomeAssistant, config: ConfigType
) -> ConditionCheckerType:
"""Test a trigger condition."""
trigger_id = config[CONF_ID]
@trace_condition_function
def trigger_if(hass: HomeAssistant, variables: TemplateVarsType = None) -> bool:
"""Validate trigger based if-condition."""
return (
variables is not None
and "trigger" in variables
and variables["trigger"].get("id") in trigger_id
)
return trigger_if
def numeric_state_validate_config(
hass: HomeAssistant, config: ConfigType
) -> ConfigType:
"""Validate numeric_state condition config."""
registry = er.async_get(hass)
config = dict(config)
config[CONF_ENTITY_ID] = er.async_validate_entity_ids(
registry, cv.entity_ids_or_uuids(config[CONF_ENTITY_ID])
)
return config
def state_validate_config(hass: HomeAssistant, config: ConfigType) -> ConfigType:
"""Validate state condition config."""
registry = er.async_get(hass)
config = dict(config)
config[CONF_ENTITY_ID] = er.async_validate_entity_ids(
registry, cv.entity_ids_or_uuids(config[CONF_ENTITY_ID])
)
return config
async def async_validate_condition_config(
hass: HomeAssistant, config: ConfigType
) -> ConfigType:
"""Validate config."""
condition_key: str = config[CONF_CONDITION]
if condition_key in ("and", "not", "or"):
conditions = []
for sub_cond in config["conditions"]:
sub_cond = await async_validate_condition_config(hass, sub_cond)
conditions.append(sub_cond)
config["conditions"] = conditions
return config
platform_domain, platform = await _async_get_condition_platform(hass, condition_key)
if platform is not None:
condition_descriptors = await platform.async_get_conditions(hass)
relative_condition_key = get_relative_description_key(
platform_domain, condition_key
)
if not (condition_class := condition_descriptors.get(relative_condition_key)):
raise vol.Invalid(f"Invalid condition '{condition_key}' specified")
return await condition_class.async_validate_complete_config(hass, config)
if condition_key in ("numeric_state", "state"):
validator = cast(
Callable[[HomeAssistant, ConfigType], ConfigType],
getattr(
sys.modules[__name__], VALIDATE_CONFIG_FORMAT.format(condition_key)
),
)
return validator(hass, config)
return config
async def async_validate_conditions_config(
hass: HomeAssistant, conditions: list[ConfigType]
) -> list[ConfigType | Template]:
"""Validate config."""
# No gather here because async_validate_condition_config is unlikely
# to suspend and the overhead of creating many tasks is not worth it
return [await async_validate_condition_config(hass, cond) for cond in conditions]
async def async_conditions_from_config(
hass: HomeAssistant,
condition_configs: list[ConfigType],
logger: logging.Logger,
name: str,
) -> Callable[[TemplateVarsType], bool]:
"""AND all conditions."""
checks: list[ConditionCheckerType] = [
await async_from_config(hass, condition_config)
for condition_config in condition_configs
]
def check_conditions(variables: TemplateVarsType = None) -> bool:
"""AND all conditions."""
errors: list[ConditionErrorIndex] = []
for index, check in enumerate(checks):
try:
with trace_path(["condition", str(index)]):
if check(hass, variables) is False:
return False
except ConditionError as ex:
errors.append(
ConditionErrorIndex(
"condition", index=index, total=len(checks), error=ex
)
)
if errors:
logger.warning(
"Error evaluating condition in '%s':\n%s",
name,
ConditionErrorContainer("condition", errors=errors),
)
return False
return True
return check_conditions
@callback
def async_extract_entities(config: ConfigType | Template) -> set[str]:
"""Extract entities from a condition."""
referenced: set[str] = set()
to_process = deque([config])
while to_process:
config = to_process.popleft()
if isinstance(config, Template):
continue
condition = config[CONF_CONDITION]
if condition in ("and", "not", "or"):
to_process.extend(config["conditions"])
continue
entity_ids = config.get(CONF_ENTITY_ID)
if isinstance(entity_ids, str):
entity_ids = [entity_ids]
if entity_ids is not None:
referenced.update(entity_ids)
return referenced
@callback
def async_extract_devices(config: ConfigType | Template) -> set[str]:
"""Extract devices from a condition."""
referenced = set()
to_process = deque([config])
while to_process:
config = to_process.popleft()
if isinstance(config, Template):
continue
condition = config[CONF_CONDITION]
if condition in ("and", "not", "or"):
to_process.extend(config["conditions"])
continue
if condition != "device":
continue
if (device_id := config.get(CONF_DEVICE_ID)) is not None:
referenced.add(device_id)
return referenced
def _load_conditions_file(integration: Integration) -> dict[str, Any]:
"""Load conditions file for an integration."""
try:
return cast(
dict[str, Any],
_CONDITIONS_DESCRIPTION_SCHEMA(
load_yaml_dict(str(integration.file_path / "conditions.yaml"))
),
)
except FileNotFoundError:
_LOGGER.warning(
"Unable to find conditions.yaml for the %s integration", integration.domain
)
return {}
except (HomeAssistantError, vol.Invalid) as ex:
_LOGGER.warning(
"Unable to parse conditions.yaml for the %s integration: %s",
integration.domain,
ex,
)
return {}
def _load_conditions_files(
integrations: Iterable[Integration],
) -> dict[str, dict[str, Any]]:
"""Load condition files for multiple integrations."""
return {
integration.domain: {
get_absolute_description_key(integration.domain, key): value
for key, value in _load_conditions_file(integration).items()
}
for integration in integrations
}
async def async_get_all_descriptions(
hass: HomeAssistant,
) -> dict[str, dict[str, Any] | None]:
"""Return descriptions (i.e. user documentation) for all conditions."""
descriptions_cache = hass.data[CONDITION_DESCRIPTION_CACHE]
conditions = hass.data[CONDITIONS]
# See if there are new conditions not seen before.
# Any condition that we saw before already has an entry in description_cache.
all_conditions = set(conditions)
previous_all_conditions = set(descriptions_cache)
# If the conditions are the same, we can return the cache
if previous_all_conditions == all_conditions:
return descriptions_cache
# Files we loaded for missing descriptions
new_conditions_descriptions: dict[str, dict[str, Any]] = {}
# We try to avoid making a copy in the event the cache is good,
# but now we must make a copy in case new conditions get added
# while we are loading the missing ones so we do not
# add the new ones to the cache without their descriptions
conditions = conditions.copy()
if missing_conditions := all_conditions.difference(descriptions_cache):
domains_with_missing_conditions = {
conditions[missing_condition] for missing_condition in missing_conditions
}
ints_or_excs = await async_get_integrations(
hass, domains_with_missing_conditions
)
integrations: list[Integration] = []
for domain, int_or_exc in ints_or_excs.items():
if type(int_or_exc) is Integration and int_or_exc.has_conditions:
integrations.append(int_or_exc)
continue
if TYPE_CHECKING:
assert isinstance(int_or_exc, Exception)
_LOGGER.debug(
"Failed to load conditions.yaml for integration: %s",
domain,
exc_info=int_or_exc,
)
if integrations:
new_conditions_descriptions = await hass.async_add_executor_job(
_load_conditions_files, integrations
)
# Make a copy of the old cache and add missing descriptions to it
new_descriptions_cache = descriptions_cache.copy()
for missing_condition in missing_conditions:
domain = conditions[missing_condition]
if (
yaml_description := new_conditions_descriptions.get(domain, {}).get(
missing_condition
)
) is None:
_LOGGER.debug(
"No condition descriptions found for condition %s, skipping",
missing_condition,
)
new_descriptions_cache[missing_condition] = None
continue
description = {"fields": yaml_description.get("fields", {})}
new_descriptions_cache[missing_condition] = description
hass.data[CONDITION_DESCRIPTION_CACHE] = new_descriptions_cache
return new_descriptions_cache