"""
Support to interface with Sonos players (via SoCo).

For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/media_player.sonos/
"""
import asyncio
import datetime
import functools as ft
import logging
from os import path
import socket
import urllib

import voluptuous as vol

from homeassistant.components.media_player import (
    ATTR_MEDIA_ENQUEUE, DOMAIN, MEDIA_TYPE_MUSIC, SUPPORT_NEXT_TRACK,
    SUPPORT_PAUSE, SUPPORT_PLAY_MEDIA, SUPPORT_PREVIOUS_TRACK, SUPPORT_SEEK,
    SUPPORT_VOLUME_MUTE, SUPPORT_VOLUME_SET, SUPPORT_CLEAR_PLAYLIST,
    SUPPORT_SELECT_SOURCE, MediaPlayerDevice, PLATFORM_SCHEMA, SUPPORT_STOP,
    SUPPORT_PLAY)
from homeassistant.const import (
    STATE_IDLE, STATE_PAUSED, STATE_PLAYING, STATE_OFF, ATTR_ENTITY_ID,
    CONF_HOSTS, ATTR_TIME)
from homeassistant.config import load_yaml_config_file
import homeassistant.helpers.config_validation as cv
from homeassistant.util.dt import utcnow

REQUIREMENTS = ['SoCo==0.12']

_LOGGER = logging.getLogger(__name__)

# The soco library is excessively chatty when it comes to logging and
# causes a LOT of spam in the logs due to making a http connection to each
# speaker every 10 seconds. Quiet it down a bit to just actual problems.
_SOCO_LOGGER = logging.getLogger('soco')
_SOCO_LOGGER.setLevel(logging.ERROR)
_SOCO_SERVICES_LOGGER = logging.getLogger('soco.services')
_REQUESTS_LOGGER = logging.getLogger('requests')
_REQUESTS_LOGGER.setLevel(logging.ERROR)

SUPPORT_SONOS = SUPPORT_STOP | SUPPORT_PAUSE | SUPPORT_VOLUME_SET |\
    SUPPORT_VOLUME_MUTE | SUPPORT_PREVIOUS_TRACK | SUPPORT_NEXT_TRACK |\
    SUPPORT_PLAY_MEDIA | SUPPORT_SEEK | SUPPORT_CLEAR_PLAYLIST |\
    SUPPORT_SELECT_SOURCE | SUPPORT_PLAY

SERVICE_JOIN = 'sonos_join'
SERVICE_UNJOIN = 'sonos_unjoin'
SERVICE_SNAPSHOT = 'sonos_snapshot'
SERVICE_RESTORE = 'sonos_restore'
SERVICE_SET_TIMER = 'sonos_set_sleep_timer'
SERVICE_CLEAR_TIMER = 'sonos_clear_sleep_timer'
SERVICE_UPDATE_ALARM = 'sonos_update_alarm'

DATA_SONOS = 'sonos'

SUPPORT_SOURCE_LINEIN = 'Line-in'
SUPPORT_SOURCE_TV = 'TV'

CONF_ADVERTISE_ADDR = 'advertise_addr'
CONF_INTERFACE_ADDR = 'interface_addr'

# Service call validation schemas
ATTR_SLEEP_TIME = 'sleep_time'
ATTR_ALARM_ID = 'alarm_id'
ATTR_VOLUME = 'volume'
ATTR_ENABLED = 'enabled'
ATTR_INCLUDE_LINKED_ZONES = 'include_linked_zones'
ATTR_MASTER = 'master'
ATTR_WITH_GROUP = 'with_group'

ATTR_IS_COORDINATOR = 'is_coordinator'

UPNP_ERRORS_TO_IGNORE = ['701']

PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
    vol.Optional(CONF_ADVERTISE_ADDR): cv.string,
    vol.Optional(CONF_INTERFACE_ADDR): cv.string,
    vol.Optional(CONF_HOSTS): vol.All(cv.ensure_list, [cv.string]),
})

SONOS_SCHEMA = vol.Schema({
    vol.Optional(ATTR_ENTITY_ID): cv.entity_ids,
})

SONOS_JOIN_SCHEMA = SONOS_SCHEMA.extend({
    vol.Required(ATTR_MASTER): cv.entity_id,
})

SONOS_STATES_SCHEMA = SONOS_SCHEMA.extend({
    vol.Optional(ATTR_WITH_GROUP, default=True): cv.boolean,
})

SONOS_SET_TIMER_SCHEMA = SONOS_SCHEMA.extend({
    vol.Required(ATTR_SLEEP_TIME):
        vol.All(vol.Coerce(int), vol.Range(min=0, max=86399))
})

SONOS_UPDATE_ALARM_SCHEMA = SONOS_SCHEMA.extend({
    vol.Required(ATTR_ALARM_ID): cv.positive_int,
    vol.Optional(ATTR_TIME): cv.time,
    vol.Optional(ATTR_VOLUME): cv.small_float,
    vol.Optional(ATTR_ENABLED): cv.boolean,
    vol.Optional(ATTR_INCLUDE_LINKED_ZONES): cv.boolean,
})


def setup_platform(hass, config, add_devices, discovery_info=None):
    """Set up the Sonos platform."""
    import soco

    if DATA_SONOS not in hass.data:
        hass.data[DATA_SONOS] = []

    advertise_addr = config.get(CONF_ADVERTISE_ADDR, None)
    if advertise_addr:
        soco.config.EVENT_ADVERTISE_IP = advertise_addr

    if discovery_info:
        player = soco.SoCo(discovery_info.get('host'))

        # if device already exists by config
        if player.uid in [x.unique_id for x in hass.data[DATA_SONOS]]:
            return

        if player.is_visible:
            device = SonosDevice(player)
            add_devices([device], True)
            hass.data[DATA_SONOS].append(device)
            if len(hass.data[DATA_SONOS]) > 1:
                return
    else:
        players = None
        hosts = config.get(CONF_HOSTS, None)
        if hosts:
            # Support retro compatibility with comma separated list of hosts
            # from config
            hosts = hosts[0] if len(hosts) == 1 else hosts
            hosts = hosts.split(',') if isinstance(hosts, str) else hosts
            players = []
            for host in hosts:
                players.append(soco.SoCo(socket.gethostbyname(host)))

        if not players:
            players = soco.discover(
                interface_addr=config.get(CONF_INTERFACE_ADDR))

        if not players:
            _LOGGER.warning("No Sonos speakers found")
            return

        hass.data[DATA_SONOS] = [SonosDevice(p) for p in players]
        add_devices(hass.data[DATA_SONOS], True)
        _LOGGER.info("Added %s Sonos speakers", len(players))

    descriptions = load_yaml_config_file(
        path.join(path.dirname(__file__), 'services.yaml'))

    def service_handle(service):
        """Handle for services."""
        entity_ids = service.data.get('entity_id')

        if entity_ids:
            devices = [device for device in hass.data[DATA_SONOS]
                       if device.entity_id in entity_ids]
        else:
            devices = hass.data[DATA_SONOS]

        for device in devices:
            if service.service == SERVICE_JOIN:
                if device.entity_id != service.data[ATTR_MASTER]:
                    device.join(service.data[ATTR_MASTER])
            elif service.service == SERVICE_UNJOIN:
                device.unjoin()
            elif service.service == SERVICE_SNAPSHOT:
                device.snapshot(service.data[ATTR_WITH_GROUP])
            elif service.service == SERVICE_RESTORE:
                device.restore(service.data[ATTR_WITH_GROUP])
            elif service.service == SERVICE_SET_TIMER:
                device.set_sleep_timer(service.data[ATTR_SLEEP_TIME])
            elif service.service == SERVICE_CLEAR_TIMER:
                device.clear_sleep_timer()
            elif service.service == SERVICE_UPDATE_ALARM:
                device.update_alarm(**service.data)

            device.schedule_update_ha_state(True)

    hass.services.register(
        DOMAIN, SERVICE_JOIN, service_handle,
        descriptions.get(SERVICE_JOIN), schema=SONOS_JOIN_SCHEMA)

    hass.services.register(
        DOMAIN, SERVICE_UNJOIN, service_handle,
        descriptions.get(SERVICE_UNJOIN), schema=SONOS_SCHEMA)

    hass.services.register(
        DOMAIN, SERVICE_SNAPSHOT, service_handle,
        descriptions.get(SERVICE_SNAPSHOT), schema=SONOS_STATES_SCHEMA)

    hass.services.register(
        DOMAIN, SERVICE_RESTORE, service_handle,
        descriptions.get(SERVICE_RESTORE), schema=SONOS_STATES_SCHEMA)

    hass.services.register(
        DOMAIN, SERVICE_SET_TIMER, service_handle,
        descriptions.get(SERVICE_SET_TIMER), schema=SONOS_SET_TIMER_SCHEMA)

    hass.services.register(
        DOMAIN, SERVICE_CLEAR_TIMER, service_handle,
        descriptions.get(SERVICE_CLEAR_TIMER), schema=SONOS_SCHEMA)

    hass.services.register(
        DOMAIN, SERVICE_UPDATE_ALARM, service_handle,
        descriptions.get(SERVICE_UPDATE_ALARM),
        schema=SONOS_UPDATE_ALARM_SCHEMA)


def _parse_timespan(timespan):
    """Parse a time-span into number of seconds."""
    if timespan in ('', 'NOT_IMPLEMENTED', None):
        return None

    return sum(60 ** x[0] * int(x[1]) for x in enumerate(
        reversed(timespan.split(':'))))


class _ProcessSonosEventQueue():
    """Queue like object for dispatching sonos events."""

    def __init__(self, sonos_device):
        self._sonos_device = sonos_device

    def put(self, item, block=True, timeout=None):
        """Queue up event for processing."""
        # Instead of putting events on a queue, dispatch them to the event
        # processing method.
        self._sonos_device.process_sonos_event(item)


def _get_entity_from_soco(hass, soco):
    """Return SonosDevice from SoCo."""
    for device in hass.data[DATA_SONOS]:
        if soco == device.soco:
            return device
    raise ValueError("No entity for SoCo device")


def soco_error(funct):
    """Catch soco exceptions."""
    @ft.wraps(funct)
    def wrapper(*args, **kwargs):
        """Wrap for all soco exception."""
        from soco.exceptions import SoCoException
        try:
            return funct(*args, **kwargs)
        except SoCoException as err:
            _LOGGER.error("Error on %s with %s", funct.__name__, err)
    return wrapper


def soco_filter_upnperror(errorcodes=None):
    """Filter out specified UPnP errors from logs."""
    def decorator(funct):
        """Decorator function."""
        @ft.wraps(funct)
        def wrapper(*args, **kwargs):
            """Wrap for all soco UPnP exception."""
            from soco.exceptions import SoCoUPnPException

            # Temporarily disable SoCo logging because it will log the
            # UPnP exception otherwise
            _SOCO_SERVICES_LOGGER.disabled = True

            try:
                return funct(*args, **kwargs)
            except SoCoUPnPException as err:
                if err.error_code in errorcodes:
                    pass
                else:
                    raise
            finally:
                _SOCO_SERVICES_LOGGER.disabled = False

        return wrapper
    return decorator


def soco_coordinator(funct):
    """Call function on coordinator."""
    @ft.wraps(funct)
    def wrapper(device, *args, **kwargs):
        """Wrap for call to coordinator."""
        if device.is_coordinator:
            return funct(device, *args, **kwargs)
        return funct(device.coordinator, *args, **kwargs)

    return wrapper


class SonosDevice(MediaPlayerDevice):
    """Representation of a Sonos device."""

    def __init__(self, player):
        """Initialize the Sonos device."""
        self.volume_increment = 5
        self._unique_id = player.uid
        self._player = player
        self._player_volume = None
        self._player_volume_muted = None
        self._speaker_info = None
        self._name = None
        self._status = None
        self._coordinator = None
        self._media_content_id = None
        self._media_duration = None
        self._media_position = None
        self._media_position_updated_at = None
        self._media_image_url = None
        self._media_artist = None
        self._media_album_name = None
        self._media_title = None
        self._media_radio_show = None
        self._media_next_title = None
        self._available = True
        self._support_previous_track = False
        self._support_next_track = False
        self._support_play = False
        self._support_stop = False
        self._support_pause = False
        self._current_track_uri = None
        self._current_track_is_radio_stream = False
        self._queue = None
        self._last_avtransport_event = None
        self._is_playing_line_in = None
        self._is_playing_tv = None
        self._favorite_sources = None
        self._source_name = None
        self._soco_snapshot = None
        self._snapshot_group = None

    @asyncio.coroutine
    def async_added_to_hass(self):
        """Subscribe sonos events."""
        self.hass.async_add_job(self._subscribe_to_player_events)

    @property
    def should_poll(self):
        """Return the polling state."""
        return True

    @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 state(self):
        """Return the state of the device."""
        if self._coordinator:
            return self._coordinator.state
        if self._status in ('PAUSED_PLAYBACK', 'STOPPED'):
            return STATE_PAUSED
        if self._status in ('PLAYING', 'TRANSITIONING'):
            return STATE_PLAYING
        if self._status == 'OFF':
            return STATE_OFF
        return STATE_IDLE

    @property
    def is_coordinator(self):
        """Return true if player is a coordinator."""
        return self._coordinator is None

    @property
    def soco(self):
        """Return soco device."""
        return self._player

    @property
    def coordinator(self):
        """Return coordinator of this player."""
        return self._coordinator

    @property
    def available(self) -> bool:
        """Return True if entity is available."""
        return self._available

    def _is_available(self):
        try:
            sock = socket.create_connection(
                address=(self._player.ip_address, 1443), timeout=3)
            sock.close()
            return True
        except socket.error:
            return False

    # pylint: disable=invalid-name
    def _subscribe_to_player_events(self):
        if self._queue is None:
            self._queue = _ProcessSonosEventQueue(self)
            self._player.avTransport.subscribe(
                auto_renew=True,
                event_queue=self._queue)
            self._player.renderingControl.subscribe(
                auto_renew=True,
                event_queue=self._queue)

    def update(self):
        """Retrieve latest state."""
        if self._speaker_info is None:
            self._speaker_info = self._player.get_speaker_info(True)
            self._name = self._speaker_info['zone_name'].replace(
                ' (R)', '').replace(' (L)', '')
            self._favorite_sources = \
                self._player.get_sonos_favorites()['favorites']

        if self._last_avtransport_event:
            self._available = True
        else:
            self._available = self._is_available()

        if not self._available:
            self._player_volume = None
            self._player_volume_muted = None
            self._status = 'OFF'
            self._coordinator = None
            self._media_content_id = None
            self._media_duration = None
            self._media_position = None
            self._media_position_updated_at = None
            self._media_image_url = None
            self._media_artist = None
            self._media_album_name = None
            self._media_title = None
            self._media_radio_show = None
            self._media_next_title = None
            self._current_track_uri = None
            self._current_track_is_radio_stream = False
            self._support_previous_track = False
            self._support_next_track = False
            self._support_play = False
            self._support_stop = False
            self._support_pause = False
            self._is_playing_tv = False
            self._is_playing_line_in = False
            self._source_name = None
            self._last_avtransport_event = None
            return

        # set group coordinator
        if self._player.is_coordinator:
            self._coordinator = None
        else:
            try:
                self._coordinator = _get_entity_from_soco(
                    self.hass, self._player.group.coordinator)

                # protect for loop
                if not self._coordinator.is_coordinator:
                    # pylint: disable=protected-access
                    self._coordinator._coordinator = None
            except ValueError:
                self._coordinator = None

        track_info = None
        if self._last_avtransport_event:
            variables = self._last_avtransport_event.variables
            current_track_metadata = variables.get(
                'current_track_meta_data', {}
            )

            self._status = variables.get('transport_state')

            if current_track_metadata:
                # no need to ask speaker for information we already have
                current_track_metadata = current_track_metadata.__dict__

                track_info = {
                    'uri': variables.get('current_track_uri'),
                    'artist': current_track_metadata.get('creator'),
                    'album': current_track_metadata.get('album'),
                    'title': current_track_metadata.get('title'),
                    'playlist_position': variables.get('current_track'),
                    'duration': variables.get('current_track_duration')
                }
        else:
            self._player_volume = self._player.volume
            self._player_volume_muted = self._player.mute
            transport_info = self._player.get_current_transport_info()
            self._status = transport_info.get('current_transport_state')

        if not track_info:
            track_info = self._player.get_current_track_info()

        if self._coordinator:
            self._last_avtransport_event = None
            return

        is_playing_tv = self._player.is_playing_tv
        is_playing_line_in = self._player.is_playing_line_in

        media_info = self._player.avTransport.GetMediaInfo(
            [('InstanceID', 0)]
        )

        current_media_uri = media_info['CurrentURI']
        media_artist = track_info.get('artist')
        media_album_name = track_info.get('album')
        media_title = track_info.get('title')
        media_image_url = track_info.get('album_art', None)

        media_position = None
        media_position_updated_at = None
        source_name = None

        is_radio_stream = \
            current_media_uri.startswith('x-sonosapi-stream:') or \
            current_media_uri.startswith('x-rincon-mp3radio:')

        if is_playing_tv or is_playing_line_in:
            # playing from line-in/tv.

            support_previous_track = False
            support_next_track = False
            support_play = False
            support_stop = True
            support_pause = False

            if is_playing_tv:
                media_artist = SUPPORT_SOURCE_TV
            else:
                media_artist = SUPPORT_SOURCE_LINEIN

            source_name = media_artist

            media_album_name = None
            media_title = None
            media_image_url = None

        elif is_radio_stream:
            media_image_url = self._format_media_image_url(
                media_image_url,
                current_media_uri
            )
            support_previous_track = False
            support_next_track = False
            support_play = True
            support_stop = True
            support_pause = False

            source_name = 'Radio'
            # Check if currently playing radio station is in favorites
            favc = [fav for fav in self._favorite_sources
                    if fav['uri'] == current_media_uri]
            if len(favc) == 1:
                src = favc.pop()
                source_name = src['title']

            # for radio streams we set the radio station name as the
            # title.
            if media_artist and media_title:
                # artist and album name are in the data, concatenate
                # that do display as artist.
                # "Information" field in the sonos pc app

                media_artist = '{artist} - {title}'.format(
                    artist=media_artist,
                    title=media_title
                )
            else:
                # "On Now" field in the sonos pc app
                media_artist = self._media_radio_show

            current_uri_metadata = media_info["CurrentURIMetaData"]
            if current_uri_metadata not in ('', 'NOT_IMPLEMENTED', None):

                # currently soco does not have an API for this
                import soco
                current_uri_metadata = soco.xml.XML.fromstring(
                    soco.utils.really_utf8(current_uri_metadata))

                md_title = current_uri_metadata.findtext(
                    './/{http://purl.org/dc/elements/1.1/}title')

                if md_title not in ('', 'NOT_IMPLEMENTED', None):
                    media_title = md_title

            if media_artist and media_title:
                # some radio stations put their name into the artist
                # name, e.g.:
                #   media_title = "Station"
                #   media_artist = "Station - Artist - Title"
                # detect this case and trim from the front of
                # media_artist for cosmetics
                str_to_trim = '{title} - '.format(
                    title=media_title
                )
                chars = min(len(media_artist), len(str_to_trim))

                if media_artist[:chars].upper() == str_to_trim[:chars].upper():
                    media_artist = media_artist[chars:]

        else:
            # not a radio stream
            media_image_url = self._format_media_image_url(
                media_image_url,
                track_info['uri']
            )
            support_previous_track = True
            support_next_track = True
            support_play = True
            support_stop = True
            support_pause = True

            position_info = self._player.avTransport.GetPositionInfo(
                [('InstanceID', 0),
                 ('Channel', 'Master')]
            )
            rel_time = _parse_timespan(
                position_info.get("RelTime")
            )

            # player no longer reports position?
            update_media_position = rel_time is None and \
                self._media_position is not None

            # player started reporting position?
            update_media_position |= rel_time is not None and \
                self._media_position is None

            # position changed?
            if rel_time is not None and self._media_position is not None:

                time_diff = utcnow() - self._media_position_updated_at
                time_diff = time_diff.total_seconds()

                calculated_position = self._media_position + time_diff

                update_media_position = \
                    abs(calculated_position - rel_time) > 1.5

            if update_media_position and self.state == STATE_PLAYING:
                media_position = rel_time
                media_position_updated_at = utcnow()
            else:
                # don't update media_position (don't want unneeded
                # state transitions)
                media_position = self._media_position
                media_position_updated_at = self._media_position_updated_at

            playlist_position = track_info.get('playlist_position')
            if playlist_position in ('', 'NOT_IMPLEMENTED', None):
                playlist_position = None
            else:
                playlist_position = int(playlist_position)

            playlist_size = media_info.get('NrTracks')
            if playlist_size in ('', 'NOT_IMPLEMENTED', None):
                playlist_size = None
            else:
                playlist_size = int(playlist_size)

            if playlist_position is not None and playlist_size is not None:

                if playlist_position <= 1:
                    support_previous_track = False

                if playlist_position == playlist_size:
                    support_next_track = False

        self._media_content_id = track_info.get('title')
        self._media_duration = _parse_timespan(
            track_info.get('duration')
        )
        self._media_position = media_position
        self._media_position_updated_at = media_position_updated_at
        self._media_image_url = media_image_url
        self._media_artist = media_artist
        self._media_album_name = media_album_name
        self._media_title = media_title
        self._current_track_uri = track_info['uri']
        self._current_track_is_radio_stream = is_radio_stream
        self._support_previous_track = support_previous_track
        self._support_next_track = support_next_track
        self._support_play = support_play
        self._support_stop = support_stop
        self._support_pause = support_pause
        self._is_playing_tv = is_playing_tv
        self._is_playing_line_in = is_playing_line_in
        self._source_name = source_name
        self._last_avtransport_event = None

    def _format_media_image_url(self, url, fallback_uri):
        if url in ('', 'NOT_IMPLEMENTED', None):
            if fallback_uri in ('', 'NOT_IMPLEMENTED', None):
                return None
            if fallback_uri.find('tts_proxy') > 0:
                # If the content is a tts don't try to fetch an image from it.
                return None
            return 'http://{host}:{port}/getaa?s=1&u={uri}'.format(
                host=self._player.ip_address,
                port=1400,
                uri=urllib.parse.quote(fallback_uri)
            )
        return url

    def process_sonos_event(self, event):
        """Process a service event coming from the speaker."""
        next_track_image_url = None
        if event.service == self._player.avTransport:
            self._last_avtransport_event = event

            self._media_radio_show = None
            if self._current_track_is_radio_stream:
                current_track_metadata = event.variables.get(
                    'current_track_meta_data'
                )
                if current_track_metadata:
                    self._media_radio_show = \
                        current_track_metadata.radio_show.split(',')[0]

            next_track_uri = event.variables.get('next_track_uri')
            if next_track_uri:
                next_track_image_url = self._format_media_image_url(
                    None,
                    next_track_uri
                )

            next_track_metadata = event.variables.get('next_track_meta_data')
            if next_track_metadata:
                next_track = '{title} - {creator}'.format(
                    title=next_track_metadata.title,
                    creator=next_track_metadata.creator
                )
                if next_track != self._media_next_title:
                    self._media_next_title = next_track
            else:
                self._media_next_title = None

        elif event.service == self._player.renderingControl:
            if 'volume' in event.variables:
                self._player_volume = int(
                    event.variables['volume'].get('Master')
                )

            if 'mute' in event.variables:
                self._player_volume_muted = \
                    event.variables['mute'].get('Master') == '1'

        self.schedule_update_ha_state(True)

        if next_track_image_url:
            self.preload_media_image_url(next_track_image_url)

    @property
    def volume_level(self):
        """Volume level of the media player (0..1)."""
        return self._player_volume / 100.0

    @property
    def is_volume_muted(self):
        """Return true if volume is muted."""
        return self._player_volume_muted

    @property
    def media_content_id(self):
        """Content ID of current playing media."""
        if self._coordinator:
            return self._coordinator.media_content_id

        return self._media_content_id

    @property
    def media_content_type(self):
        """Content type of current playing media."""
        return MEDIA_TYPE_MUSIC

    @property
    def media_duration(self):
        """Duration of current playing media in seconds."""
        if self._coordinator:
            return self._coordinator.media_duration

        return self._media_duration

    @property
    def media_position(self):
        """Position of current playing media in seconds."""
        if self._coordinator:
            return self._coordinator.media_position

        return self._media_position

    @property
    def media_position_updated_at(self):
        """When was the position of the current playing media valid.

        Returns value from homeassistant.util.dt.utcnow().
        """
        if self._coordinator:
            return self._coordinator.media_position_updated_at

        return self._media_position_updated_at

    @property
    def media_image_url(self):
        """Image url of current playing media."""
        if self._coordinator:
            return self._coordinator.media_image_url

        return self._media_image_url

    @property
    def media_artist(self):
        """Artist of current playing media, music track only."""
        if self._coordinator:
            return self._coordinator.media_artist

        return self._media_artist

    @property
    def media_album_name(self):
        """Album name of current playing media, music track only."""
        if self._coordinator:
            return self._coordinator.media_album_name

        return self._media_album_name

    @property
    def media_title(self):
        """Title of current playing media."""
        if self._coordinator:
            return self._coordinator.media_title

        return self._media_title

    @property
    def supported_features(self):
        """Flag media player features that are supported."""
        if self._coordinator:
            return self._coordinator.supported_features

        supported = SUPPORT_SONOS

        if not self._support_previous_track:
            supported = supported ^ SUPPORT_PREVIOUS_TRACK

        if not self._support_next_track:
            supported = supported ^ SUPPORT_NEXT_TRACK

        if not self._support_play:
            supported = supported ^ SUPPORT_PLAY

        if not self._support_stop:
            supported = supported ^ SUPPORT_STOP

        if not self._support_pause:
            supported = supported ^ SUPPORT_PAUSE

        return supported

    @soco_error
    def volume_up(self):
        """Volume up media player."""
        self._player.volume += self.volume_increment

    @soco_error
    def volume_down(self):
        """Volume down media player."""
        self._player.volume -= self.volume_increment

    @soco_error
    def set_volume_level(self, volume):
        """Set volume level, range 0..1."""
        self._player.volume = str(int(volume * 100))

    @soco_error
    def mute_volume(self, mute):
        """Mute (true) or unmute (false) media player."""
        self._player.mute = mute

    @soco_error
    @soco_coordinator
    def select_source(self, source):
        """Select input source."""
        if source == SUPPORT_SOURCE_LINEIN:
            self._source_name = SUPPORT_SOURCE_LINEIN
            self._player.switch_to_line_in()
        elif source == SUPPORT_SOURCE_TV:
            self._source_name = SUPPORT_SOURCE_TV
            self._player.switch_to_tv()
        else:
            fav = [fav for fav in self._favorite_sources
                   if fav['title'] == source]
            if len(fav) == 1:
                src = fav.pop()
                self._source_name = src['title']

                if ('object.container.playlistContainer' in src['meta'] or
                        'object.container.album.musicAlbum' in src['meta']):
                    self._replace_queue_with_playlist(src)
                    self._player.play_from_queue(0)
                else:
                    self._player.play_uri(src['uri'], src['meta'],
                                          src['title'])

    def _replace_queue_with_playlist(self, src):
        """Replace queue with playlist represented by src.

        Playlists can't be played directly with the self._player.play_uri
        API as they are actually composed of multiple URLs. Until soco has
        support for playing a playlist, we'll need to parse the playlist item
        and replace the current queue in order to play it.
        """
        import soco
        import xml.etree.ElementTree as ET

        root = ET.fromstring(src['meta'])
        namespaces = {'item':
                      'urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/',
                      'desc': 'urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/'}
        desc = root.find('item:item', namespaces).find('desc:desc',
                                                       namespaces).text

        res = [soco.data_structures.DidlResource(uri=src['uri'],
                                                 protocol_info="DUMMY")]
        didl = soco.data_structures.DidlItem(title="DUMMY",
                                             parent_id="DUMMY",
                                             item_id=src['uri'],
                                             desc=desc,
                                             resources=res)

        self._player.stop()
        self._player.clear_queue()
        self._player.play_mode = 'NORMAL'
        self._player.add_to_queue(didl)

    @property
    def source_list(self):
        """List of available input sources."""
        if self._coordinator:
            return self._coordinator.source_list

        model_name = self._speaker_info['model_name']
        sources = []

        if self._favorite_sources:
            for fav in self._favorite_sources:
                sources.append(fav['title'])

        if 'PLAY:5' in model_name:
            sources += [SUPPORT_SOURCE_LINEIN]
        elif 'PLAYBAR' in model_name:
            sources += [SUPPORT_SOURCE_LINEIN, SUPPORT_SOURCE_TV]
        return sources

    @property
    def source(self):
        """Name of the current input source."""
        if self._coordinator:
            return self._coordinator.source

        return self._source_name

    @soco_error
    def turn_off(self):
        """Turn off media player."""
        if self._support_stop:
            self.media_stop()

    @soco_error
    @soco_filter_upnperror(UPNP_ERRORS_TO_IGNORE)
    @soco_coordinator
    def media_play(self):
        """Send play command."""
        self._player.play()

    @soco_error
    @soco_filter_upnperror(UPNP_ERRORS_TO_IGNORE)
    @soco_coordinator
    def media_stop(self):
        """Send stop command."""
        self._player.stop()

    @soco_error
    @soco_filter_upnperror(UPNP_ERRORS_TO_IGNORE)
    @soco_coordinator
    def media_pause(self):
        """Send pause command."""
        self._player.pause()

    @soco_error
    @soco_coordinator
    def media_next_track(self):
        """Send next track command."""
        self._player.next()

    @soco_error
    @soco_coordinator
    def media_previous_track(self):
        """Send next track command."""
        self._player.previous()

    @soco_error
    @soco_coordinator
    def media_seek(self, position):
        """Send seek command."""
        self._player.seek(str(datetime.timedelta(seconds=int(position))))

    @soco_error
    @soco_coordinator
    def clear_playlist(self):
        """Clear players playlist."""
        self._player.clear_queue()

    @soco_error
    def turn_on(self):
        """Turn the media player on."""
        if self.support_play:
            self.media_play()

    @soco_error
    @soco_coordinator
    def play_media(self, media_type, media_id, **kwargs):
        """
        Send the play_media command to the media player.

        If ATTR_MEDIA_ENQUEUE is True, add `media_id` to the queue.
        """
        if kwargs.get(ATTR_MEDIA_ENQUEUE):
            from soco.exceptions import SoCoUPnPException
            try:
                self._player.add_uri_to_queue(media_id)
            except SoCoUPnPException:
                _LOGGER.error('Error parsing media uri "%s", '
                              "please check it's a valid media resource "
                              'supported by Sonos', media_id)
        else:
            self._player.play_uri(media_id)

    @soco_error
    def join(self, master):
        """Join the player to a group."""
        coord = [device for device in self.hass.data[DATA_SONOS]
                 if device.entity_id == master]

        if coord and master != self.entity_id:
            coord = coord[0]
            if coord.soco.group.coordinator != coord.soco:
                coord.soco.unjoin()
            self._player.join(coord.soco)
            self._coordinator = coord
        else:
            _LOGGER.error("Master not found %s", master)

    @soco_error
    def unjoin(self):
        """Unjoin the player from a group."""
        self._player.unjoin()
        self._coordinator = None

    @soco_error
    def snapshot(self, with_group=True):
        """Snapshot the player."""
        from soco.snapshot import Snapshot

        self._soco_snapshot = Snapshot(self._player)
        self._soco_snapshot.snapshot()

        if with_group:
            self._snapshot_group = self._player.group
            if self._coordinator:
                self._coordinator.snapshot(False)
        else:
            self._snapshot_group = None

    @soco_error
    def restore(self, with_group=True):
        """Restore snapshot for the player."""
        from soco.exceptions import SoCoException
        try:
            # need catch exception if a coordinator is going to slave.
            # this state will recover with group part.
            self._soco_snapshot.restore(False)
        except (TypeError, AttributeError, SoCoException):
            _LOGGER.debug("Error on restore %s", self.entity_id)

        # restore groups
        if with_group and self._snapshot_group:
            old = self._snapshot_group
            actual = self._player.group

            ##
            # Master have not change, update group
            if old.coordinator == actual.coordinator:
                if self._player is not old.coordinator:
                    # restore state of the groups
                    self._coordinator.restore(False)
                remove = actual.members - old.members
                add = old.members - actual.members

                # remove new members
                for soco_dev in list(remove):
                    soco_dev.unjoin()

                # add old members
                for soco_dev in list(add):
                    soco_dev.join(old.coordinator)
                return

            ##
            # old is already master, rejoin
            if old.coordinator.group.coordinator == old.coordinator:
                self._player.join(old.coordinator)
                return

            ##
            # restore old master, update group
            old.coordinator.unjoin()
            coordinator = _get_entity_from_soco(self.hass, old.coordinator)
            coordinator.restore(False)

            for s_dev in list(old.members):
                if s_dev != old.coordinator:
                    s_dev.join(old.coordinator)

    @soco_error
    @soco_coordinator
    def set_sleep_timer(self, sleep_time):
        """Set the timer on the player."""
        self._player.set_sleep_timer(sleep_time)

    @soco_error
    @soco_coordinator
    def clear_sleep_timer(self):
        """Clear the timer on the player."""
        self._player.set_sleep_timer(None)

    @soco_error
    @soco_coordinator
    def update_alarm(self, **data):
        """Set the alarm clock on the player."""
        from soco import alarms
        a = None
        for alarm in alarms.get_alarms(self.soco):
            # pylint: disable=protected-access
            if alarm._alarm_id == str(data[ATTR_ALARM_ID]):
                a = alarm
        if a is None:
            _LOGGER.warning("did not find alarm with id %s",
                            data[ATTR_ALARM_ID])
            return
        if ATTR_TIME in data:
            a.start_time = data[ATTR_TIME]
        if ATTR_VOLUME in data:
            a.volume = int(data[ATTR_VOLUME] * 100)
        if ATTR_ENABLED in data:
            a.enabled = data[ATTR_ENABLED]
        if ATTR_INCLUDE_LINKED_ZONES in data:
            a.include_linked_zones = data[ATTR_INCLUDE_LINKED_ZONES]
        a.save()

    @property
    def device_state_attributes(self):
        """Return device specific state attributes."""
        return {ATTR_IS_COORDINATOR: self.is_coordinator}
