core/homeassistant/components/voip/switch.py

"""VoIP switch entities."""

from typing import Any

from homeassistant.components.switch import SwitchEntity, SwitchEntityDescription
from homeassistant.const import STATE_ON, EntityCategory
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers import restore_state
from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback

from . import VoipConfigEntry
from .devices import VoIPDevice
from .entity import VoIPEntity


async def async_setup_entry(
    hass: HomeAssistant,
    config_entry: VoipConfigEntry,
    async_add_entities: AddConfigEntryEntitiesCallback,
) -> None:
    """Set up VoIP switch entities."""
    domain_data = config_entry.runtime_data.domain_data

    @callback
    def async_add_device(device: VoIPDevice) -> None:
        """Add device."""
        async_add_entities([VoIPCallAllowedSwitch(device)])

    domain_data.devices.async_add_new_device_listener(async_add_device)

    async_add_entities(
        [VoIPCallAllowedSwitch(device) for device in domain_data.devices]
    )


class VoIPCallAllowedSwitch(VoIPEntity, restore_state.RestoreEntity, SwitchEntity):
    """Entity to represent voip is allowed."""

    entity_description = SwitchEntityDescription(
        key="allow_call",
        translation_key="allow_call",
        entity_category=EntityCategory.CONFIG,
    )

    async def async_added_to_hass(self) -> None:
        """Call when entity about to be added to hass."""
        await super().async_added_to_hass()

        state = await self.async_get_last_state()
        self._attr_is_on = state is not None and state.state == STATE_ON

    async def async_turn_on(self, **kwargs: Any) -> None:
        """Turn on."""
        self._attr_is_on = True
        self.async_write_ha_state()

    async def async_turn_off(self, **kwargs: Any) -> None:
        """Turn off."""
        self._attr_is_on = False
        self.async_write_ha_state()