239 lines
		
	
	
		
			8.2 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			239 lines
		
	
	
		
			8.2 KiB
		
	
	
	
		
			Python
		
	
	
"""Support for media metadata handling."""
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from __future__ import annotations
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import datetime
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from typing import Any
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from soco.core import (
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    MUSIC_SRC_AIRPLAY,
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    MUSIC_SRC_LINE_IN,
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    MUSIC_SRC_RADIO,
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    MUSIC_SRC_SPOTIFY_CONNECT,
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    MUSIC_SRC_TV,
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    SoCo,
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)
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from soco.data_structures import DidlAudioBroadcast, DidlPlaylistContainer
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from soco.music_library import MusicLibrary
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from homeassistant.core import HomeAssistant
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from homeassistant.helpers.config_validation import time_period_str
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from homeassistant.helpers.dispatcher import dispatcher_send
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from homeassistant.util import dt as dt_util
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from .const import (
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    SONOS_MEDIA_UPDATED,
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    SONOS_STATE_PLAYING,
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    SONOS_STATE_TRANSITIONING,
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    SOURCE_AIRPLAY,
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    SOURCE_LINEIN,
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    SOURCE_SPOTIFY_CONNECT,
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    SOURCE_TV,
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)
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from .helpers import soco_error
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LINEIN_SOURCES = (MUSIC_SRC_TV, MUSIC_SRC_LINE_IN)
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SOURCE_MAPPING = {
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    MUSIC_SRC_AIRPLAY: SOURCE_AIRPLAY,
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    MUSIC_SRC_TV: SOURCE_TV,
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    MUSIC_SRC_LINE_IN: SOURCE_LINEIN,
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    MUSIC_SRC_SPOTIFY_CONNECT: SOURCE_SPOTIFY_CONNECT,
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}
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UNAVAILABLE_VALUES = {"", "NOT_IMPLEMENTED", None}
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DURATION_SECONDS = "duration_in_s"
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POSITION_SECONDS = "position_in_s"
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def _timespan_secs(timespan: str | None) -> int | None:
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    """Parse a time-span into number of seconds."""
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    if timespan in UNAVAILABLE_VALUES:
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        return None
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    return int(time_period_str(timespan).total_seconds())  # type: ignore[arg-type]
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class SonosMedia:
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    """Representation of the current Sonos media."""
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    def __init__(self, hass: HomeAssistant, soco: SoCo) -> None:
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        """Initialize a SonosMedia."""
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        self.hass = hass
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        self.soco = soco
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        self.play_mode: str | None = None
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        self.playback_status: str | None = None
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        # This block is reset with clear()
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        self.album_name: str | None = None
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        self.artist: str | None = None
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        self.channel: str | None = None
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        self.duration: float | None = None
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        self.image_url: str | None = None
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        self.queue_position: int | None = None
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        self.queue_size: int | None = None
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        self.playlist_name: str | None = None
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        self.source_name: str | None = None
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        self.title: str | None = None
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        self.uri: str | None = None
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        self.position: int | None = None
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        self.position_updated_at: datetime.datetime | None = None
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    def clear(self) -> None:
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        """Clear basic media info."""
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        self.album_name = None
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        self.artist = None
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        self.channel = None
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        self.duration = None
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        self.image_url = None
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        self.playlist_name = None
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        self.queue_position = None
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        self.queue_size = None
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        self.source_name = None
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        self.title = None
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        self.uri = None
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    def clear_position(self) -> None:
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        """Clear the position attributes."""
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        self.position = None
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        self.position_updated_at = None
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    @property
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    def library(self) -> MusicLibrary:
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        """Return the soco MusicLibrary instance."""
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        return self.soco.music_library
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    @soco_error()
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    def poll_track_info(self) -> dict[str, Any]:
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        """Poll the speaker for current track info, add converted position values."""
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        track_info: dict[str, Any] = self.soco.get_current_track_info()
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        track_info[DURATION_SECONDS] = _timespan_secs(track_info.get("duration"))
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        track_info[POSITION_SECONDS] = _timespan_secs(track_info.get("position"))
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        return track_info
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    def write_media_player_states(self) -> None:
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        """Send a signal to media player(s) to write new states."""
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        dispatcher_send(self.hass, SONOS_MEDIA_UPDATED, self.soco.uid)
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    def set_basic_track_info(self, update_position: bool = False) -> None:
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        """Query the speaker to update media metadata and position info."""
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        self.clear()
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        track_info = self.poll_track_info()
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        if not track_info["uri"]:
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            return
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        self.uri = track_info["uri"]
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        audio_source = self.soco.music_source_from_uri(self.uri)
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        if source := SOURCE_MAPPING.get(audio_source):
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            self.source_name = source
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            if audio_source in LINEIN_SOURCES:
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                self.clear_position()
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                self.title = source
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                return
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        self.artist = track_info.get("artist")
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        self.album_name = track_info.get("album")
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        self.title = track_info.get("title")
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        self.image_url = track_info.get("album_art")
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        playlist_position = int(track_info.get("playlist_position", -1))
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        if playlist_position > 0:
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            self.queue_position = playlist_position
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        self.update_media_position(track_info, force_update=update_position)
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    def update_media_from_event(self, evars: dict[str, Any]) -> None:
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        """Update information about currently playing media using an event payload."""
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        new_status = evars["transport_state"]
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        state_changed = new_status != self.playback_status
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        self.play_mode = evars["current_play_mode"]
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        self.playback_status = new_status
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        track_uri = evars["enqueued_transport_uri"] or evars["current_track_uri"]
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        audio_source = self.soco.music_source_from_uri(track_uri)
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        self.set_basic_track_info(update_position=state_changed)
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        if ct_md := evars["current_track_meta_data"]:
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            if not self.image_url:
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                if album_art_uri := getattr(ct_md, "album_art_uri", None):
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                    self.image_url = self.library.build_album_art_full_uri(
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                        album_art_uri
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                    )
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        et_uri_md = evars["enqueued_transport_uri_meta_data"]
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        if isinstance(et_uri_md, DidlPlaylistContainer):
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            self.playlist_name = et_uri_md.title
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        if queue_size := evars.get("number_of_tracks", 0):
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            self.queue_size = int(queue_size)
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        if audio_source == MUSIC_SRC_RADIO:
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            if et_uri_md:
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                self.channel = et_uri_md.title
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            # Extra guards for S1 compatibility
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            if ct_md and hasattr(ct_md, "radio_show") and ct_md.radio_show:
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                radio_show = ct_md.radio_show.split(",")[0]
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                self.channel = " • ".join(filter(None, [self.channel, radio_show]))
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            if isinstance(et_uri_md, DidlAudioBroadcast):
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                self.title = self.title or self.channel
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        self.write_media_player_states()
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    @soco_error()
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    def poll_media(self) -> None:
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        """Poll information about currently playing media."""
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        transport_info = self.soco.get_current_transport_info()
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        new_status = transport_info["current_transport_state"]
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        if new_status == SONOS_STATE_TRANSITIONING:
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            return
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        update_position = new_status != self.playback_status
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        self.playback_status = new_status
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        self.play_mode = self.soco.play_mode
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        self.set_basic_track_info(update_position=update_position)
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        self.write_media_player_states()
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    def update_media_position(
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        self, position_info: dict[str, int], force_update: bool = False
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    ) -> None:
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        """Update state when playing music tracks."""
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        duration = position_info.get(DURATION_SECONDS)
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        current_position = position_info.get(POSITION_SECONDS)
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        if not (duration or current_position):
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            self.clear_position()
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            return
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        should_update = force_update
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        self.duration = duration
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        # player started reporting position?
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        if current_position is not None and self.position is None:
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            should_update = True
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        # position jumped?
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        if current_position is not None and self.position is not None:
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            if self.playback_status == SONOS_STATE_PLAYING:
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                assert self.position_updated_at is not None
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                time_delta = dt_util.utcnow() - self.position_updated_at
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                time_diff = time_delta.total_seconds()
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            else:
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                time_diff = 0
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            calculated_position = self.position + time_diff
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            if abs(calculated_position - current_position) > 1.5:
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                should_update = True
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        if current_position is None:
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            self.clear_position()
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        elif should_update:
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            self.position = current_position
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            self.position_updated_at = dt_util.utcnow()
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