mopidy/mopidy/backends/spotify/session_manager.py
2011-04-26 23:07:36 +02:00

146 lines
5.1 KiB
Python

import logging
import os
import threading
from spotify.manager import SpotifySessionManager as PyspotifySessionManager
from pykka.registry import ActorRegistry
from mopidy import get_version, settings
from mopidy.backends.base import Backend
from mopidy.backends.spotify.translator import SpotifyTranslator
from mopidy.models import Playlist
from mopidy.outputs.base import BaseOutput
from mopidy.utils.process import BaseThread
logger = logging.getLogger('mopidy.backends.spotify.session_manager')
# pylint: disable = R0901
# SpotifySessionManager: Too many ancestors (9/7)
class SpotifySessionManager(BaseThread, PyspotifySessionManager):
cache_location = settings.SPOTIFY_CACHE_PATH
settings_location = settings.SPOTIFY_CACHE_PATH
appkey_file = os.path.join(os.path.dirname(__file__), 'spotify_appkey.key')
user_agent = 'Mopidy %s' % get_version()
def __init__(self, username, password):
PyspotifySessionManager.__init__(self, username, password)
BaseThread.__init__(self)
self.name = 'SpotifySMThread'
self.output = None
self.backend = None
self.connected = threading.Event()
self.session = None
def run_inside_try(self):
self.setup()
self.connect()
def setup(self):
output_refs = ActorRegistry.get_by_class(BaseOutput)
assert len(output_refs) == 1, 'Expected exactly one running output.'
self.output = output_refs[0].proxy()
backend_refs = ActorRegistry.get_by_class(Backend)
assert len(backend_refs) == 1, 'Expected exactly one running backend.'
self.backend = backend_refs[0].proxy()
def logged_in(self, session, error):
"""Callback used by pyspotify"""
if error:
logger.error(u'Spotify login error: %s', error)
return
logger.info(u'Connected to Spotify')
self.session = session
if settings.SPOTIFY_HIGH_BITRATE:
logger.debug(u'Preferring high bitrate from Spotify')
self.session.set_preferred_bitrate(1)
else:
logger.debug(u'Preferring normal bitrate from Spotify')
self.session.set_preferred_bitrate(0)
self.connected.set()
def logged_out(self, session):
"""Callback used by pyspotify"""
logger.info(u'Disconnected from Spotify')
def metadata_updated(self, session):
"""Callback used by pyspotify"""
logger.debug(u'Metadata updated')
self.refresh_stored_playlists()
def connection_error(self, session, error):
"""Callback used by pyspotify"""
if error is None:
logger.info(u'Spotify connection error resolved')
else:
logger.error(u'Spotify connection error: %s', error)
self.backend.playback.pause()
def message_to_user(self, session, message):
"""Callback used by pyspotify"""
logger.debug(u'User message: %s', message.strip())
def notify_main_thread(self, session):
"""Callback used by pyspotify"""
logger.debug(u'notify_main_thread() called')
def music_delivery(self, session, frames, frame_size, num_frames,
sample_type, sample_rate, channels):
"""Callback used by pyspotify"""
# pylint: disable = R0913
# Too many arguments (8/5)
assert sample_type == 0, u'Expects 16-bit signed integer samples'
capabilites = """
audio/x-raw-int,
endianness=(int)1234,
channels=(int)%(channels)d,
width=(int)16,
depth=(int)16,
signed=(boolean)true,
rate=(int)%(sample_rate)d
""" % {
'sample_rate': sample_rate,
'channels': channels,
}
self.output.deliver_data(capabilites, bytes(frames))
def play_token_lost(self, session):
"""Callback used by pyspotify"""
logger.debug(u'Play token lost')
self.backend.playback.pause()
def log_message(self, session, data):
"""Callback used by pyspotify"""
logger.debug(u'System message: %s' % data.strip())
def end_of_track(self, session):
"""Callback used by pyspotify"""
logger.debug(u'End of data stream reached')
self.output.end_of_data_stream()
def refresh_stored_playlists(self):
"""Refresh the stored playlists in the backend with fresh meta data
from Spotify"""
playlists = []
for spotify_playlist in self.session.playlist_container():
playlists.append(
SpotifyTranslator.to_mopidy_playlist(spotify_playlist))
playlists = filter(None, playlists)
self.backend.stored_playlists.playlists = playlists
logger.debug(u'Refreshed %d stored playlist(s)', len(playlists))
def search(self, query, queue):
"""Search method used by Mopidy backend"""
def callback(results, userdata=None):
# TODO Include results from results.albums(), etc. too
playlist = Playlist(tracks=[
SpotifyTranslator.to_mopidy_track(t)
for t in results.tracks()])
queue.put(playlist)
self.connected.wait()
self.session.search(query, callback)