core/homeassistant/components/switch/__init__.py

122 lines
3.2 KiB
Python

"""
Component to interface with various switches that can be controlled remotely.
For more details about this component, please refer to the documentation
at https://home-assistant.io/components/switch/
"""
from datetime import timedelta
import logging
import voluptuous as vol
from homeassistant.loader import bind_hass
from homeassistant.helpers.entity_component import EntityComponent
from homeassistant.helpers.entity import ToggleEntity
from homeassistant.helpers.config_validation import ( # noqa
PLATFORM_SCHEMA, PLATFORM_SCHEMA_BASE)
import homeassistant.helpers.config_validation as cv
from homeassistant.const import (
STATE_ON, SERVICE_TURN_ON, SERVICE_TURN_OFF, SERVICE_TOGGLE,
ATTR_ENTITY_ID)
from homeassistant.components import group
DOMAIN = 'switch'
DEPENDENCIES = ['group']
SCAN_INTERVAL = timedelta(seconds=30)
GROUP_NAME_ALL_SWITCHES = 'all switches'
ENTITY_ID_ALL_SWITCHES = group.ENTITY_ID_FORMAT.format('all_switches')
ENTITY_ID_FORMAT = DOMAIN + '.{}'
ATTR_TODAY_ENERGY_KWH = "today_energy_kwh"
ATTR_CURRENT_POWER_W = "current_power_w"
MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
PROP_TO_ATTR = {
'current_power_w': ATTR_CURRENT_POWER_W,
'today_energy_kwh': ATTR_TODAY_ENERGY_KWH,
}
SWITCH_SERVICE_SCHEMA = vol.Schema({
vol.Optional(ATTR_ENTITY_ID): cv.comp_entity_ids,
})
_LOGGER = logging.getLogger(__name__)
@bind_hass
def is_on(hass, entity_id=None):
"""Return if the switch is on based on the statemachine.
Async friendly.
"""
entity_id = entity_id or ENTITY_ID_ALL_SWITCHES
return hass.states.is_state(entity_id, STATE_ON)
async def async_setup(hass, config):
"""Track states and offer events for switches."""
component = hass.data[DOMAIN] = EntityComponent(
_LOGGER, DOMAIN, hass, SCAN_INTERVAL, GROUP_NAME_ALL_SWITCHES)
await component.async_setup(config)
component.async_register_entity_service(
SERVICE_TURN_OFF, SWITCH_SERVICE_SCHEMA,
'async_turn_off'
)
component.async_register_entity_service(
SERVICE_TURN_ON, SWITCH_SERVICE_SCHEMA,
'async_turn_on'
)
component.async_register_entity_service(
SERVICE_TOGGLE, SWITCH_SERVICE_SCHEMA,
'async_toggle'
)
return True
async def async_setup_entry(hass, entry):
"""Set up a config entry."""
return await hass.data[DOMAIN].async_setup_entry(entry)
async def async_unload_entry(hass, entry):
"""Unload a config entry."""
return await hass.data[DOMAIN].async_unload_entry(entry)
class SwitchDevice(ToggleEntity):
"""Representation of a switch."""
@property
def current_power_w(self):
"""Return the current power usage in W."""
return None
@property
def today_energy_kwh(self):
"""Return the today total energy usage in kWh."""
return None
@property
def is_standby(self):
"""Return true if device is in standby."""
return None
@property
def state_attributes(self):
"""Return the optional state attributes."""
data = {}
for prop, attr in PROP_TO_ATTR.items():
value = getattr(self, prop)
if value:
data[attr] = value
return data