mirror of
https://github.com/home-assistant/core
synced 2024-08-28 03:36:46 +02:00
126 lines
3.9 KiB
Python
126 lines
3.9 KiB
Python
"""Reproduce an Fan state."""
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from __future__ import annotations
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import asyncio
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from collections.abc import Iterable
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import logging
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from typing import Any
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from homeassistant.const import (
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ATTR_ENTITY_ID,
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SERVICE_TURN_OFF,
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SERVICE_TURN_ON,
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STATE_OFF,
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STATE_ON,
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)
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from homeassistant.core import Context, HomeAssistant, State
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from . import (
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ATTR_DIRECTION,
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ATTR_OSCILLATING,
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ATTR_PERCENTAGE,
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ATTR_PRESET_MODE,
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DOMAIN,
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SERVICE_OSCILLATE,
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SERVICE_SET_DIRECTION,
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SERVICE_SET_PERCENTAGE,
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SERVICE_SET_PRESET_MODE,
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)
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_LOGGER = logging.getLogger(__name__)
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VALID_STATES = {STATE_ON, STATE_OFF}
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# These are used as parameters to fan.turn_on service.
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SPEED_AND_MODE_ATTRIBUTES = {
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ATTR_PERCENTAGE: SERVICE_SET_PERCENTAGE,
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ATTR_PRESET_MODE: SERVICE_SET_PRESET_MODE,
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}
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SIMPLE_ATTRIBUTES = { # attribute: service
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ATTR_DIRECTION: SERVICE_SET_DIRECTION,
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ATTR_OSCILLATING: SERVICE_OSCILLATE,
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}
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async def _async_reproduce_state(
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hass: HomeAssistant,
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state: State,
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*,
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context: Context | None = None,
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reproduce_options: dict[str, Any] | None = None,
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) -> None:
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"""Reproduce a single state."""
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if (cur_state := hass.states.get(state.entity_id)) is None:
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_LOGGER.warning("Unable to find entity %s", state.entity_id)
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return
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if state.state not in VALID_STATES:
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_LOGGER.warning(
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"Invalid state specified for %s: %s", state.entity_id, state.state
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)
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return
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service_calls: dict[str, dict[str, Any]] = {}
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if state.state == STATE_ON:
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# The fan should be on
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if cur_state.state != STATE_ON:
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# Turn on the fan with all the speed and modes attributes.
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# The `turn_on` method will figure out in which mode to
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# turn the fan on.
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service_calls[SERVICE_TURN_ON] = {
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attr: state.attributes.get(attr)
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for attr in SPEED_AND_MODE_ATTRIBUTES
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if state.attributes.get(attr) is not None
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}
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else:
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# If the fan is already on, we need to set speed or mode
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# based on the state.
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#
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# Speed and preset mode are mutually exclusive, so one of
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# them is always going to be stored as None. If we were to
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# try to set it, it will raise an error. So instead we
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# only update the one that is non-None.
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for attr, service in SPEED_AND_MODE_ATTRIBUTES.items():
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value = state.attributes.get(attr)
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if value is not None and value != cur_state.attributes.get(attr):
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service_calls[service] = {attr: value}
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# The simple attributes are copied directly. They can only be
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# None if the fan does not support the feature in the first
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# place, so the equality check ensures we don't call the
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# services with invalid parameters.
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for attr, service in SIMPLE_ATTRIBUTES.items():
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if (value := state.attributes.get(attr)) != cur_state.attributes.get(attr):
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service_calls[service] = {attr: value}
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elif state.state == STATE_OFF and cur_state.state != state.state:
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service_calls[SERVICE_TURN_OFF] = {}
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for service, data in service_calls.items():
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await hass.services.async_call(
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DOMAIN,
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service,
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{ATTR_ENTITY_ID: state.entity_id, **data},
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context=context,
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blocking=True,
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)
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async def async_reproduce_states(
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hass: HomeAssistant,
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states: Iterable[State],
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*,
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context: Context | None = None,
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reproduce_options: dict[str, Any] | None = None,
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) -> None:
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"""Reproduce Fan states."""
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await asyncio.gather(
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*(
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_async_reproduce_state(
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hass, state, context=context, reproduce_options=reproduce_options
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)
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for state in states
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)
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)
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