core/homeassistant/components/elkm1/switch.py

"""Support for control of ElkM1 outputs (relays)."""
from homeassistant.components.switch import SwitchDevice

from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities


async def async_setup_platform(
        hass, config, async_add_entities, discovery_info=None):
    """Create the Elk-M1 switch platform."""
    if discovery_info is None:
        return
    elk = hass.data[ELK_DOMAIN]['elk']
    entities = create_elk_entities(hass, elk.outputs, 'output', ElkOutput, [])
    async_add_entities(entities, True)


class ElkOutput(ElkEntity, SwitchDevice):
    """Elk output as switch."""

    @property
    def is_on(self) -> bool:
        """Get the current output status."""
        return self._element.output_on

    async def async_turn_on(self, **kwargs):
        """Turn on the output."""
        self._element.turn_on(0)

    async def async_turn_off(self, **kwargs):
        """Turn off the output."""
        self._element.turn_off()