core/homeassistant/components/zwave/__init__.py

"""
Support for Z-Wave.

For more details about this component, please refer to the documentation at
https://home-assistant.io/components/zwave/
"""
import asyncio
import copy
import logging
import os.path
import time
from pprint import pprint

import voluptuous as vol

from homeassistant.core import CoreState
from homeassistant.loader import get_platform
from homeassistant.helpers import discovery
from homeassistant.helpers.entity_component import EntityComponent
from homeassistant.const import (
    ATTR_ENTITY_ID, EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
from homeassistant.helpers.entity_values import EntityValues
from homeassistant.helpers.event import track_time_change
from homeassistant.util import convert, slugify
import homeassistant.config as conf_util
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.dispatcher import (
    async_dispatcher_connect, async_dispatcher_send)
from homeassistant.components.frontend import register_built_in_panel

from . import const
from .const import DOMAIN
from .node_entity import ZWaveBaseEntity, ZWaveNodeEntity
from . import workaround
from .discovery_schemas import DISCOVERY_SCHEMAS
from .util import check_node_schema, check_value_schema, node_name

REQUIREMENTS = ['pydispatcher==2.0.5', 'python_openzwave==0.4.0.31']

_LOGGER = logging.getLogger(__name__)

CLASS_ID = 'class_id'
CONF_AUTOHEAL = 'autoheal'
CONF_DEBUG = 'debug'
CONF_POLLING_INTENSITY = 'polling_intensity'
CONF_POLLING_INTERVAL = 'polling_interval'
CONF_USB_STICK_PATH = 'usb_path'
CONF_CONFIG_PATH = 'config_path'
CONF_IGNORED = 'ignored'
CONF_INVERT_OPENCLOSE_BUTTONS = 'invert_openclose_buttons'
CONF_REFRESH_VALUE = 'refresh_value'
CONF_REFRESH_DELAY = 'delay'
CONF_DEVICE_CONFIG = 'device_config'
CONF_DEVICE_CONFIG_GLOB = 'device_config_glob'
CONF_DEVICE_CONFIG_DOMAIN = 'device_config_domain'

ATTR_POWER = 'power_consumption'

DEFAULT_CONF_AUTOHEAL = True
DEFAULT_CONF_USB_STICK_PATH = '/zwaveusbstick'
DEFAULT_POLLING_INTERVAL = 60000
DEFAULT_DEBUG = False
DEFAULT_CONF_IGNORED = False
DEFAULT_CONF_INVERT_OPENCLOSE_BUTTONS = False
DEFAULT_CONF_REFRESH_VALUE = False
DEFAULT_CONF_REFRESH_DELAY = 5

DATA_ZWAVE_DICT = 'zwave_devices'
ZWAVE_NETWORK = 'zwave_network'

RENAME_NODE_SCHEMA = vol.Schema({
    vol.Required(const.ATTR_NODE_ID): vol.Coerce(int),
    vol.Required(const.ATTR_NAME): cv.string,
})
SET_CONFIG_PARAMETER_SCHEMA = vol.Schema({
    vol.Required(const.ATTR_NODE_ID): vol.Coerce(int),
    vol.Required(const.ATTR_CONFIG_PARAMETER): vol.Coerce(int),
    vol.Required(const.ATTR_CONFIG_VALUE): vol.Coerce(int),
    vol.Optional(const.ATTR_CONFIG_SIZE): vol.Coerce(int)
})
PRINT_CONFIG_PARAMETER_SCHEMA = vol.Schema({
    vol.Required(const.ATTR_NODE_ID): vol.Coerce(int),
    vol.Required(const.ATTR_CONFIG_PARAMETER): vol.Coerce(int),
})

NODE_SERVICE_SCHEMA = vol.Schema({
    vol.Required(const.ATTR_NODE_ID): vol.Coerce(int),
})

REFRESH_ENTITY_SCHEMA = vol.Schema({
    vol.Required(ATTR_ENTITY_ID): cv.entity_id,
})

CHANGE_ASSOCIATION_SCHEMA = vol.Schema({
    vol.Required(const.ATTR_ASSOCIATION): cv.string,
    vol.Required(const.ATTR_NODE_ID): vol.Coerce(int),
    vol.Required(const.ATTR_TARGET_NODE_ID): vol.Coerce(int),
    vol.Required(const.ATTR_GROUP): vol.Coerce(int),
    vol.Optional(const.ATTR_INSTANCE, default=0x00): vol.Coerce(int)
})

SET_WAKEUP_SCHEMA = vol.Schema({
    vol.Required(const.ATTR_NODE_ID): vol.Coerce(int),
    vol.Required(const.ATTR_CONFIG_VALUE):
        vol.All(vol.Coerce(int), cv.positive_int),
})

DEVICE_CONFIG_SCHEMA_ENTRY = vol.Schema({
    vol.Optional(CONF_POLLING_INTENSITY): cv.positive_int,
    vol.Optional(CONF_IGNORED, default=DEFAULT_CONF_IGNORED): cv.boolean,
    vol.Optional(CONF_INVERT_OPENCLOSE_BUTTONS,
                 default=DEFAULT_CONF_INVERT_OPENCLOSE_BUTTONS): cv.boolean,
    vol.Optional(CONF_REFRESH_VALUE, default=DEFAULT_CONF_REFRESH_VALUE):
        cv.boolean,
    vol.Optional(CONF_REFRESH_DELAY, default=DEFAULT_CONF_REFRESH_DELAY):
        cv.positive_int
})

SIGNAL_REFRESH_ENTITY_FORMAT = 'zwave_refresh_entity_{}'

CONFIG_SCHEMA = vol.Schema({
    DOMAIN: vol.Schema({
        vol.Optional(CONF_AUTOHEAL, default=DEFAULT_CONF_AUTOHEAL): cv.boolean,
        vol.Optional(CONF_CONFIG_PATH): cv.string,
        vol.Optional(CONF_DEVICE_CONFIG, default={}):
            vol.Schema({cv.entity_id: DEVICE_CONFIG_SCHEMA_ENTRY}),
        vol.Optional(CONF_DEVICE_CONFIG_GLOB, default={}):
            vol.Schema({cv.string: DEVICE_CONFIG_SCHEMA_ENTRY}),
        vol.Optional(CONF_DEVICE_CONFIG_DOMAIN, default={}):
            vol.Schema({cv.string: DEVICE_CONFIG_SCHEMA_ENTRY}),
        vol.Optional(CONF_DEBUG, default=DEFAULT_DEBUG): cv.boolean,
        vol.Optional(CONF_POLLING_INTERVAL, default=DEFAULT_POLLING_INTERVAL):
            cv.positive_int,
        vol.Optional(CONF_USB_STICK_PATH, default=DEFAULT_CONF_USB_STICK_PATH):
            cv.string,
    }),
}, extra=vol.ALLOW_EXTRA)


def _obj_to_dict(obj):
    """Convert an object into a hash for debug."""
    return {key: getattr(obj, key) for key
            in dir(obj)
            if key[0] != '_' and not hasattr(getattr(obj, key), '__call__')}


def _value_name(value):
    """Return the name of the value."""
    return '{} {}'.format(node_name(value.node), value.label)


def _node_object_id(node):
    """Return the object_id of the node."""
    node_object_id = '{}_{}'.format(slugify(node_name(node)), node.node_id)
    return node_object_id


def object_id(value):
    """Return the object_id of the device value.

    The object_id contains node_id and value instance id
    to not collide with other entity_ids.
    """
    _object_id = "{}_{}_{}".format(slugify(_value_name(value)),
                                   value.node.node_id, value.index)

    # Add the instance id if there is more than one instance for the value
    if value.instance > 1:
        return '{}_{}'.format(_object_id, value.instance)
    return _object_id


def nice_print_node(node):
    """Print a nice formatted node to the output (debug method)."""
    node_dict = _obj_to_dict(node)
    node_dict['values'] = {value_id: _obj_to_dict(value)
                           for value_id, value in node.values.items()}

    print("\n\n\n")
    print("FOUND NODE", node.product_name)
    pprint(node_dict)
    print("\n\n\n")


def get_config_value(node, value_index, tries=5):
    """Return the current configuration value for a specific index."""
    try:
        for value in node.values.values():
            if (value.command_class == const.COMMAND_CLASS_CONFIGURATION
                    and value.index == value_index):
                return value.data
    except RuntimeError:
        # If we get an runtime error the dict has changed while
        # we was looking for a value, just do it again
        return None if tries <= 0 else get_config_value(
            node, value_index, tries=tries - 1)
    return None


@asyncio.coroutine
def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
    """Set up the Z-Wave platform (generic part)."""
    if discovery_info is None or ZWAVE_NETWORK not in hass.data:
        return False

    device = hass.data[DATA_ZWAVE_DICT].pop(
        discovery_info[const.DISCOVERY_DEVICE], None)
    if device is None:
        return False

    async_add_devices([device])
    return True


# pylint: disable=R0914
def setup(hass, config):
    """Set up Z-Wave.

    Will automatically load components to support devices found on the network.
    """
    descriptions = conf_util.load_yaml_config_file(
        os.path.join(os.path.dirname(__file__), 'services.yaml'))

    from pydispatch import dispatcher
    # pylint: disable=import-error
    from openzwave.option import ZWaveOption
    from openzwave.network import ZWaveNetwork
    from openzwave.group import ZWaveGroup

    # Load configuration
    use_debug = config[DOMAIN].get(CONF_DEBUG)
    autoheal = config[DOMAIN].get(CONF_AUTOHEAL)
    device_config = EntityValues(
        config[DOMAIN][CONF_DEVICE_CONFIG],
        config[DOMAIN][CONF_DEVICE_CONFIG_DOMAIN],
        config[DOMAIN][CONF_DEVICE_CONFIG_GLOB])

    # Setup options
    options = ZWaveOption(
        config[DOMAIN].get(CONF_USB_STICK_PATH),
        user_path=hass.config.config_dir,
        config_path=config[DOMAIN].get(CONF_CONFIG_PATH))

    options.set_console_output(use_debug)
    options.lock()

    network = hass.data[ZWAVE_NETWORK] = ZWaveNetwork(options, autostart=False)
    hass.data[DATA_ZWAVE_DICT] = {}

    if use_debug:  # pragma: no cover
        def log_all(signal, value=None):
            """Log all the signals."""
            print("")
            print("SIGNAL *****", signal)
            if value and signal in (ZWaveNetwork.SIGNAL_VALUE_CHANGED,
                                    ZWaveNetwork.SIGNAL_VALUE_ADDED,
                                    ZWaveNetwork.SIGNAL_SCENE_EVENT,
                                    ZWaveNetwork.SIGNAL_NODE_EVENT,
                                    ZWaveNetwork.SIGNAL_AWAKE_NODES_QUERIED,
                                    ZWaveNetwork.SIGNAL_ALL_NODES_QUERIED):
                pprint(_obj_to_dict(value))

            print("")

        dispatcher.connect(log_all, weak=False)

    discovered_values = []

    def value_added(node, value):
        """Handle new added value to a node on the network."""
        # Check if this value should be tracked by an existing entity
        for values in discovered_values:
            values.check_value(value)

        for schema in DISCOVERY_SCHEMAS:
            if not check_node_schema(node, schema):
                continue
            if not check_value_schema(
                    value,
                    schema[const.DISC_VALUES][const.DISC_PRIMARY]):
                continue

            values = ZWaveDeviceEntityValues(
                hass, schema, value, config, device_config)
            discovered_values.append(values)

    component = EntityComponent(_LOGGER, DOMAIN, hass)

    def node_added(node):
        """Handle a new node on the network."""
        entity = ZWaveNodeEntity(node, network)
        node_config = device_config.get(entity.entity_id)
        if node_config.get(CONF_IGNORED):
            _LOGGER.info(
                "Ignoring node entity %s due to device settings",
                entity.entity_id)
            return
        component.add_entities([entity])

    def scene_activated(node, scene_id):
        """Handle an activated scene on any node in the network."""
        hass.bus.fire(const.EVENT_SCENE_ACTIVATED, {
            ATTR_ENTITY_ID: _node_object_id(node),
            const.ATTR_OBJECT_ID: _node_object_id(node),
            const.ATTR_SCENE_ID: scene_id
        })

    def node_event_activated(node, value):
        """Handle a nodeevent on any node in the network."""
        hass.bus.fire(const.EVENT_NODE_EVENT, {
            const.ATTR_OBJECT_ID: _node_object_id(node),
            const.ATTR_BASIC_LEVEL: value
        })

    def network_ready():
        """Handle the query of all awake nodes."""
        _LOGGER.info("Zwave network is ready for use. All awake nodes "
                     "have been queried. Sleeping nodes will be "
                     "queried when they awake.")
        hass.bus.fire(const.EVENT_NETWORK_READY)

    def network_complete():
        """Handle the querying of all nodes on network."""
        _LOGGER.info("Z-Wave network is complete. All nodes on the network "
                     "have been queried")
        hass.bus.fire(const.EVENT_NETWORK_COMPLETE)

    dispatcher.connect(
        value_added, ZWaveNetwork.SIGNAL_VALUE_ADDED, weak=False)
    dispatcher.connect(
        node_added, ZWaveNetwork.SIGNAL_NODE_ADDED, weak=False)
    dispatcher.connect(
        scene_activated, ZWaveNetwork.SIGNAL_SCENE_EVENT, weak=False)
    dispatcher.connect(
        node_event_activated, ZWaveNetwork.SIGNAL_NODE_EVENT, weak=False)
    dispatcher.connect(
        network_ready, ZWaveNetwork.SIGNAL_AWAKE_NODES_QUERIED, weak=False)
    dispatcher.connect(
        network_complete, ZWaveNetwork.SIGNAL_ALL_NODES_QUERIED, weak=False)

    def add_node(service):
        """Switch into inclusion mode."""
        _LOGGER.info("Z-Wave add_node have been initialized")
        network.controller.add_node()

    def add_node_secure(service):
        """Switch into secure inclusion mode."""
        _LOGGER.info("Z-Wave add_node_secure have been initialized")
        network.controller.add_node(True)

    def remove_node(service):
        """Switch into exclusion mode."""
        _LOGGER.info("Z-Wwave remove_node have been initialized")
        network.controller.remove_node()

    def cancel_command(service):
        """Cancel a running controller command."""
        _LOGGER.info("Cancel running Z-Wave command")
        network.controller.cancel_command()

    def heal_network(service):
        """Heal the network."""
        _LOGGER.info("Z-Wave heal running")
        network.heal()

    def soft_reset(service):
        """Soft reset the controller."""
        _LOGGER.info("Z-Wave soft_reset have been initialized")
        network.controller.soft_reset()

    def test_network(service):
        """Test the network by sending commands to all the nodes."""
        _LOGGER.info("Z-Wave test_network have been initialized")
        network.test()

    def stop_network(_service_or_event):
        """Stop Z-Wave network."""
        _LOGGER.info("Stopping Z-Wave network")
        network.stop()
        if hass.state == CoreState.running:
            hass.bus.fire(const.EVENT_NETWORK_STOP)

    def rename_node(service):
        """Rename a node."""
        node_id = service.data.get(const.ATTR_NODE_ID)
        node = hass.data[ZWAVE_NETWORK].nodes[node_id]
        name = service.data.get(const.ATTR_NAME)
        node.name = name
        _LOGGER.info(
            "Renamed Z-Wave node %d to %s", node_id, name)

    def remove_failed_node(service):
        """Remove failed node."""
        node_id = service.data.get(const.ATTR_NODE_ID)
        _LOGGER.info("Trying to remove zwave node %d", node_id)
        network.controller.remove_failed_node(node_id)

    def replace_failed_node(service):
        """Replace failed node."""
        node_id = service.data.get(const.ATTR_NODE_ID)
        _LOGGER.info("Trying to replace zwave node %d", node_id)
        network.controller.replace_failed_node(node_id)

    def set_config_parameter(service):
        """Set a config parameter to a node."""
        node_id = service.data.get(const.ATTR_NODE_ID)
        node = network.nodes[node_id]
        param = service.data.get(const.ATTR_CONFIG_PARAMETER)
        selection = service.data.get(const.ATTR_CONFIG_VALUE)
        size = service.data.get(const.ATTR_CONFIG_SIZE, 2)
        i = 0
        for value in (
                node.get_values(class_id=const.COMMAND_CLASS_CONFIGURATION)
                .values()):
            if value.index == param and value.type == const.TYPE_LIST:
                _LOGGER.debug("Values for parameter %s: %s", param,
                              value.data_items)
                i = len(value.data_items) - 1
        if i == 0:
            node.set_config_param(param, selection, size)
        else:
            if selection > i:
                _LOGGER.info("Config parameter selection does not exist! "
                             "Please check zwcfg_[home_id].xml in "
                             "your homeassistant config directory. "
                             "Available selections are 0 to %s", i)
                return
            node.set_config_param(param, selection, size)
            _LOGGER.info("Setting config parameter %s on Node %s "
                         "with selection %s and size=%s", param, node_id,
                         selection, size)

    def print_config_parameter(service):
        """Print a config parameter from a node."""
        node_id = service.data.get(const.ATTR_NODE_ID)
        node = network.nodes[node_id]
        param = service.data.get(const.ATTR_CONFIG_PARAMETER)
        _LOGGER.info("Config parameter %s on Node %s: %s",
                     param, node_id, get_config_value(node, param))

    def print_node(service):
        """Print all information about z-wave node."""
        node_id = service.data.get(const.ATTR_NODE_ID)
        node = network.nodes[node_id]
        nice_print_node(node)

    def set_wakeup(service):
        """Set wake-up interval of a node."""
        node_id = service.data.get(const.ATTR_NODE_ID)
        node = network.nodes[node_id]
        value = service.data.get(const.ATTR_CONFIG_VALUE)
        if node.can_wake_up():
            for value_id in node.get_values(
                    class_id=const.COMMAND_CLASS_WAKE_UP):
                node.values[value_id].data = value
                _LOGGER.info("Node %s wake-up set to %d", node_id, value)
        else:
            _LOGGER.info("Node %s is not wakeable", node_id)

    def change_association(service):
        """Change an association in the zwave network."""
        association_type = service.data.get(const.ATTR_ASSOCIATION)
        node_id = service.data.get(const.ATTR_NODE_ID)
        target_node_id = service.data.get(const.ATTR_TARGET_NODE_ID)
        group = service.data.get(const.ATTR_GROUP)
        instance = service.data.get(const.ATTR_INSTANCE)

        node = ZWaveGroup(group, network, node_id)
        if association_type == 'add':
            node.add_association(target_node_id, instance)
            _LOGGER.info("Adding association for node:%s in group:%s "
                         "target node:%s, instance=%s", node_id, group,
                         target_node_id, instance)
        if association_type == 'remove':
            node.remove_association(target_node_id, instance)
            _LOGGER.info("Removing association for node:%s in group:%s "
                         "target node:%s, instance=%s", node_id, group,
                         target_node_id, instance)

    @asyncio.coroutine
    def async_refresh_entity(service):
        """Refresh values that specific entity depends on."""
        entity_id = service.data.get(ATTR_ENTITY_ID)
        async_dispatcher_send(
            hass, SIGNAL_REFRESH_ENTITY_FORMAT.format(entity_id))

    def refresh_node(service):
        """Refresh all node info."""
        node_id = service.data.get(const.ATTR_NODE_ID)
        node = network.nodes[node_id]
        node.refresh_info()

    def start_zwave(_service_or_event):
        """Startup Z-Wave network."""
        _LOGGER.info("Starting Z-Wave network...")
        network.start()
        hass.bus.fire(const.EVENT_NETWORK_START)

        # Need to be in STATE_AWAKED before talking to nodes.
        # Wait up to NETWORK_READY_WAIT_SECS seconds for the zwave network
        # to be ready.
        for i in range(const.NETWORK_READY_WAIT_SECS):
            _LOGGER.debug(
                "network state: %d %s", hass.data[ZWAVE_NETWORK].state,
                network.state_str)
            if network.state >= network.STATE_AWAKED:
                _LOGGER.info("Z-Wave ready after %d seconds", i)
                break
            time.sleep(1)
        else:
            _LOGGER.warning(
                "zwave not ready after %d seconds, continuing anyway",
                const.NETWORK_READY_WAIT_SECS)
            _LOGGER.info(
                "final network state: %d %s", network.state,
                network.state_str)

        polling_interval = convert(
            config[DOMAIN].get(CONF_POLLING_INTERVAL), int)
        if polling_interval is not None:
            network.set_poll_interval(polling_interval, False)

        poll_interval = network.get_poll_interval()
        _LOGGER.info("Z-Wave polling interval set to %d ms", poll_interval)

        hass.bus.listen_once(EVENT_HOMEASSISTANT_STOP, stop_network)

        # Register node services for Z-Wave network
        hass.services.register(DOMAIN, const.SERVICE_ADD_NODE, add_node,
                               descriptions[const.SERVICE_ADD_NODE])
        hass.services.register(DOMAIN, const.SERVICE_ADD_NODE_SECURE,
                               add_node_secure,
                               descriptions[const.SERVICE_ADD_NODE_SECURE])
        hass.services.register(DOMAIN, const.SERVICE_REMOVE_NODE, remove_node,
                               descriptions[const.SERVICE_REMOVE_NODE])
        hass.services.register(DOMAIN, const.SERVICE_CANCEL_COMMAND,
                               cancel_command,
                               descriptions[const.SERVICE_CANCEL_COMMAND])
        hass.services.register(DOMAIN, const.SERVICE_HEAL_NETWORK,
                               heal_network,
                               descriptions[const.SERVICE_HEAL_NETWORK])
        hass.services.register(DOMAIN, const.SERVICE_SOFT_RESET, soft_reset,
                               descriptions[const.SERVICE_SOFT_RESET])
        hass.services.register(DOMAIN, const.SERVICE_TEST_NETWORK,
                               test_network,
                               descriptions[const.SERVICE_TEST_NETWORK])
        hass.services.register(DOMAIN, const.SERVICE_STOP_NETWORK,
                               stop_network,
                               descriptions[const.SERVICE_STOP_NETWORK])
        hass.services.register(DOMAIN, const.SERVICE_START_NETWORK,
                               start_zwave,
                               descriptions[const.SERVICE_START_NETWORK])
        hass.services.register(DOMAIN, const.SERVICE_RENAME_NODE, rename_node,
                               descriptions[const.SERVICE_RENAME_NODE],
                               schema=RENAME_NODE_SCHEMA)
        hass.services.register(DOMAIN, const.SERVICE_SET_CONFIG_PARAMETER,
                               set_config_parameter,
                               descriptions[
                                   const.SERVICE_SET_CONFIG_PARAMETER],
                               schema=SET_CONFIG_PARAMETER_SCHEMA)
        hass.services.register(DOMAIN, const.SERVICE_PRINT_CONFIG_PARAMETER,
                               print_config_parameter,
                               descriptions[
                                   const.SERVICE_PRINT_CONFIG_PARAMETER],
                               schema=PRINT_CONFIG_PARAMETER_SCHEMA)
        hass.services.register(DOMAIN, const.SERVICE_REMOVE_FAILED_NODE,
                               remove_failed_node,
                               descriptions[const.SERVICE_REMOVE_FAILED_NODE],
                               schema=NODE_SERVICE_SCHEMA)
        hass.services.register(DOMAIN, const.SERVICE_REPLACE_FAILED_NODE,
                               replace_failed_node,
                               descriptions[const.SERVICE_REPLACE_FAILED_NODE],
                               schema=NODE_SERVICE_SCHEMA)

        hass.services.register(DOMAIN, const.SERVICE_CHANGE_ASSOCIATION,
                               change_association,
                               descriptions[
                                   const.SERVICE_CHANGE_ASSOCIATION],
                               schema=CHANGE_ASSOCIATION_SCHEMA)
        hass.services.register(DOMAIN, const.SERVICE_SET_WAKEUP,
                               set_wakeup,
                               descriptions[
                                   const.SERVICE_SET_WAKEUP],
                               schema=SET_WAKEUP_SCHEMA)
        hass.services.register(DOMAIN, const.SERVICE_PRINT_NODE,
                               print_node,
                               descriptions[
                                   const.SERVICE_PRINT_NODE],
                               schema=NODE_SERVICE_SCHEMA)
        hass.services.register(DOMAIN, const.SERVICE_REFRESH_ENTITY,
                               async_refresh_entity,
                               descriptions[
                                   const.SERVICE_REFRESH_ENTITY],
                               schema=REFRESH_ENTITY_SCHEMA)
        hass.services.register(DOMAIN, const.SERVICE_REFRESH_NODE,
                               refresh_node,
                               descriptions[
                                   const.SERVICE_REFRESH_NODE],
                               schema=NODE_SERVICE_SCHEMA)

    # Setup autoheal
    if autoheal:
        _LOGGER.info("Z-Wave network autoheal is enabled")
        track_time_change(hass, heal_network, hour=0, minute=0, second=0)

    hass.bus.listen_once(EVENT_HOMEASSISTANT_START, start_zwave)

    if 'frontend' in hass.config.components:
        register_built_in_panel(hass, 'zwave', 'Z-Wave', 'mdi:nfc')

    return True


class ZWaveDeviceEntityValues():
    """Manages entity access to the underlying zwave value objects."""

    def __init__(self, hass, schema, primary_value, zwave_config,
                 device_config):
        """Initialize the values object with the passed entity schema."""
        self._hass = hass
        self._zwave_config = zwave_config
        self._device_config = device_config
        self._schema = copy.deepcopy(schema)
        self._values = {}
        self._entity = None
        self._workaround_ignore = False

        for name in self._schema[const.DISC_VALUES].keys():
            self._values[name] = None
            self._schema[const.DISC_VALUES][name][const.DISC_INSTANCE] = \
                [primary_value.instance]

        self._values[const.DISC_PRIMARY] = primary_value
        self._node = primary_value.node
        self._schema[const.DISC_NODE_ID] = [self._node.node_id]

        # Check values that have already been discovered for node
        for value in self._node.values.values():
            self.check_value(value)

        self._check_entity_ready()

    def __getattr__(self, name):
        """Get the specified value for this entity."""
        return self._values[name]

    def __iter__(self):
        """Allow iteration over all values."""
        return iter(self._values.values())

    def check_value(self, value):
        """Check if the new value matches a missing value for this entity.

        If a match is found, it is added to the values mapping.
        """
        if not check_node_schema(value.node, self._schema):
            return
        for name in self._values:
            if self._values[name] is not None:
                continue
            if not check_value_schema(
                    value, self._schema[const.DISC_VALUES][name]):
                continue
            self._values[name] = value
            if self._entity:
                self._entity.value_added()
                self._entity.value_changed()

            self._check_entity_ready()

    def _check_entity_ready(self):
        """Check if all required values are discovered and create entity."""
        if self._workaround_ignore:
            return
        if self._entity is not None:
            return

        for name in self._schema[const.DISC_VALUES]:
            if self._values[name] is None and \
                    not self._schema[const.DISC_VALUES][name].get(
                            const.DISC_OPTIONAL):
                return

        component = self._schema[const.DISC_COMPONENT]

        workaround_component = workaround.get_device_component_mapping(
            self.primary)
        if workaround_component and workaround_component != component:
            if workaround_component == workaround.WORKAROUND_IGNORE:
                _LOGGER.info("Ignoring device %s due to workaround.",
                             "{}.{}".format(
                                 component, object_id(self.primary)))
                # No entity will be created for this value
                self._workaround_ignore = True
                return
            _LOGGER.debug("Using %s instead of %s",
                          workaround_component, component)
            component = workaround_component

        name = "{}.{}".format(component, object_id(self.primary))
        node_config = self._device_config.get(name)

        # Configure node
        _LOGGER.debug("Adding Node_id=%s Generic_command_class=%s, "
                      "Specific_command_class=%s, "
                      "Command_class=%s, Value type=%s, "
                      "Genre=%s as %s", self._node.node_id,
                      self._node.generic, self._node.specific,
                      self.primary.command_class, self.primary.type,
                      self.primary.genre, component)

        if node_config.get(CONF_IGNORED):
            _LOGGER.info(
                "Ignoring entity %s due to device settings", name)
            # No entity will be created for this value
            self._workaround_ignore = True
            return

        polling_intensity = convert(
            node_config.get(CONF_POLLING_INTENSITY), int)
        if polling_intensity:
            self.primary.enable_poll(polling_intensity)
        else:
            self.primary.disable_poll()

        platform = get_platform(component, DOMAIN)
        device = platform.get_device(
            node=self._node, values=self,
            node_config=node_config, hass=self._hass)
        if device is None:
            # No entity will be created for this value
            self._workaround_ignore = True
            return

        self._entity = device

        dict_id = id(self)

        @asyncio.coroutine
        def discover_device(component, device, dict_id):
            """Put device in a dictionary and call discovery on it."""
            self._hass.data[DATA_ZWAVE_DICT][dict_id] = device
            yield from discovery.async_load_platform(
                self._hass, component, DOMAIN,
                {const.DISCOVERY_DEVICE: dict_id}, self._zwave_config)
        self._hass.add_job(discover_device, component, device, dict_id)


class ZWaveDeviceEntity(ZWaveBaseEntity):
    """Representation of a Z-Wave node entity."""

    def __init__(self, values, domain):
        """Initialize the z-Wave device."""
        # pylint: disable=import-error
        super().__init__()
        from openzwave.network import ZWaveNetwork
        from pydispatch import dispatcher
        self.values = values
        self.node = values.primary.node
        self.values.primary.set_change_verified(False)
        self.entity_id = "{}.{}".format(domain, object_id(values.primary))

        self._name = _value_name(self.values.primary)
        self._unique_id = "ZWAVE-{}-{}".format(self.node.node_id,
                                               self.values.primary.object_id)
        self._update_attributes()

        dispatcher.connect(
            self.network_value_changed, ZWaveNetwork.SIGNAL_VALUE_CHANGED)

    def network_value_changed(self, value):
        """Handle a value change on the network."""
        if value.value_id in [v.value_id for v in self.values if v]:
            return self.value_changed()

    def value_added(self):
        """Handle a new value of this entity."""
        pass

    def value_changed(self):
        """Handle a changed value for this entity's node."""
        self._update_attributes()
        self.update_properties()
        self.maybe_schedule_update()

    @asyncio.coroutine
    def async_added_to_hass(self):
        """Add device to dict."""
        async_dispatcher_connect(
            self.hass,
            SIGNAL_REFRESH_ENTITY_FORMAT.format(self.entity_id),
            self.refresh_from_network)

    def _update_attributes(self):
        """Update the node attributes. May only be used inside callback."""
        self.node_id = self.node.node_id

        if self.values.power:
            self.power_consumption = round(
                self.values.power.data, self.values.power.precision)
        else:
            self.power_consumption = None

    def update_properties(self):
        """Update on data changes for node values."""
        pass

    @property
    def should_poll(self):
        """No polling needed."""
        return False

    @property
    def unique_id(self):
        """Return an unique ID."""
        return self._unique_id

    @property
    def name(self):
        """Return the name of the device."""
        return self._name

    @property
    def device_state_attributes(self):
        """Return the device specific state attributes."""
        attrs = {
            const.ATTR_NODE_ID: self.node_id,
        }

        if self.power_consumption is not None:
            attrs[ATTR_POWER] = self.power_consumption

        return attrs

    def refresh_from_network(self):
        """Refresh all dependent values from zwave network."""
        for value in self.values:
            if value is not None:
                self.node.refresh_value(value.value_id)