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mirror of https://github.com/home-assistant/core synced 2024-08-02 23:40:32 +02:00
ha-core/homeassistant/components/zha/switch.py
2021-03-18 15:08:35 +01:00

134 lines
4.5 KiB
Python

"""Switches on Zigbee Home Automation networks."""
from __future__ import annotations
import functools
from typing import Any
from zigpy.zcl.clusters.general import OnOff
from zigpy.zcl.foundation import Status
from homeassistant.components.switch import DOMAIN, SwitchEntity
from homeassistant.const import STATE_ON, STATE_UNAVAILABLE
from homeassistant.core import State, callback
from homeassistant.helpers.dispatcher import async_dispatcher_connect
from .core import discovery
from .core.const import (
CHANNEL_ON_OFF,
DATA_ZHA,
DATA_ZHA_DISPATCHERS,
SIGNAL_ADD_ENTITIES,
SIGNAL_ATTR_UPDATED,
)
from .core.registries import ZHA_ENTITIES
from .entity import ZhaEntity, ZhaGroupEntity
STRICT_MATCH = functools.partial(ZHA_ENTITIES.strict_match, DOMAIN)
GROUP_MATCH = functools.partial(ZHA_ENTITIES.group_match, DOMAIN)
async def async_setup_entry(hass, config_entry, async_add_entities):
"""Set up the Zigbee Home Automation switch from config entry."""
entities_to_create = hass.data[DATA_ZHA][DOMAIN]
unsub = async_dispatcher_connect(
hass,
SIGNAL_ADD_ENTITIES,
functools.partial(
discovery.async_add_entities, async_add_entities, entities_to_create
),
)
hass.data[DATA_ZHA][DATA_ZHA_DISPATCHERS].append(unsub)
class BaseSwitch(SwitchEntity):
"""Common base class for zha switches."""
def __init__(self, *args, **kwargs):
"""Initialize the ZHA switch."""
self._on_off_channel = None
self._state = None
super().__init__(*args, **kwargs)
@property
def is_on(self) -> bool:
"""Return if the switch is on based on the statemachine."""
if self._state is None:
return False
return self._state
async def async_turn_on(self, **kwargs) -> None:
"""Turn the entity on."""
result = await self._on_off_channel.on()
if not isinstance(result, list) or result[1] is not Status.SUCCESS:
return
self._state = True
self.async_write_ha_state()
async def async_turn_off(self, **kwargs) -> None:
"""Turn the entity off."""
result = await self._on_off_channel.off()
if not isinstance(result, list) or result[1] is not Status.SUCCESS:
return
self._state = False
self.async_write_ha_state()
@STRICT_MATCH(channel_names=CHANNEL_ON_OFF)
class Switch(BaseSwitch, ZhaEntity):
"""ZHA switch."""
def __init__(self, unique_id, zha_device, channels, **kwargs):
"""Initialize the ZHA switch."""
super().__init__(unique_id, zha_device, channels, **kwargs)
self._on_off_channel = self.cluster_channels.get(CHANNEL_ON_OFF)
@callback
def async_set_state(self, attr_id: int, attr_name: str, value: Any):
"""Handle state update from channel."""
self._state = bool(value)
self.async_write_ha_state()
async def async_added_to_hass(self) -> None:
"""Run when about to be added to hass."""
await super().async_added_to_hass()
self.async_accept_signal(
self._on_off_channel, SIGNAL_ATTR_UPDATED, self.async_set_state
)
@callback
def async_restore_last_state(self, last_state) -> None:
"""Restore previous state."""
self._state = last_state.state == STATE_ON
async def async_update(self) -> None:
"""Attempt to retrieve on off state from the switch."""
await super().async_update()
if self._on_off_channel:
state = await self._on_off_channel.get_attribute_value("on_off")
if state is not None:
self._state = state
@GROUP_MATCH()
class SwitchGroup(BaseSwitch, ZhaGroupEntity):
"""Representation of a switch group."""
def __init__(
self, entity_ids: list[str], unique_id: str, group_id: int, zha_device, **kwargs
) -> None:
"""Initialize a switch group."""
super().__init__(entity_ids, unique_id, group_id, zha_device, **kwargs)
self._available: bool = False
group = self.zha_device.gateway.get_group(self._group_id)
self._on_off_channel = group.endpoint[OnOff.cluster_id]
async def async_update(self) -> None:
"""Query all members and determine the light group state."""
all_states = [self.hass.states.get(x) for x in self._entity_ids]
states: list[State] = list(filter(None, all_states))
on_states = [state for state in states if state.state == STATE_ON]
self._state = len(on_states) > 0
self._available = any(state.state != STATE_UNAVAILABLE for state in states)