Mixonomer/music/tasks/run_user_playlist.py
aj f5eb07ca21 added last.fm chart playlists
added front end support for library tracks
2019-11-01 23:46:49 +00:00

98 lines
3.7 KiB
Python

from google.cloud import firestore
import datetime
import logging
from spotframework.engine.playlistengine import PlaylistEngine, PlaylistSource, RecommendationSource, LibraryTrackSource
from spotframework.engine.processor.shuffle import Shuffle
from spotframework.engine.processor.sort import SortReleaseDate
from spotframework.engine.processor.deduplicate import DeduplicateByID
from spotframework.model.uri import Uri
from spotfm.engine.chart_source import ChartSource
import music.db.database as database
from music.db.part_generator import PartGenerator
from music.model.playlist import RecentsPlaylist, LastFMChartPlaylist
db = firestore.Client()
logger = logging.getLogger(__name__)
def run_user_playlist(username, playlist_name):
user = database.get_user(username)
logger.info(f'running {username} / {playlist_name}')
if user:
playlist = database.get_playlist(username=username, name=playlist_name)
if playlist is not None:
if playlist.uri is None:
logger.critical(f'no playlist id to populate ({username}/{playlist_name})')
return None
net = database.get_authed_spotify_network(username)
engine = PlaylistEngine(net)
if isinstance(playlist, LastFMChartPlaylist) and user.lastfm_username is not None:
engine.sources.append(ChartSource(spotnet=net, fmnet=database.get_authed_lastfm_network(user.username)))
processors = [DeduplicateByID()]
if not isinstance(playlist, LastFMChartPlaylist):
if playlist.shuffle is True:
processors.append(Shuffle())
else:
processors.append(SortReleaseDate(reverse=True))
part_generator = PartGenerator(user=user)
submit_parts = part_generator.get_recursive_parts(playlist.name)
params = [
PlaylistSource.Params(names=submit_parts)
]
if playlist.include_recommendations:
params.append(RecommendationSource.Params(recommendation_limit=playlist.recommendation_sample))
if playlist.include_library_tracks:
params.append(LibraryTrackSource.Params())
if isinstance(playlist, LastFMChartPlaylist):
params.append(ChartSource.Params(chart_range=playlist.chart_range, limit=playlist.chart_limit))
if isinstance(playlist, RecentsPlaylist):
boundary_date = datetime.datetime.now(datetime.timezone.utc) - \
datetime.timedelta(days=int(playlist.day_boundary))
tracks = engine.get_recent_playlist(params=params,
processors=processors,
boundary_date=boundary_date,
add_this_month=playlist.add_this_month,
add_last_month=playlist.add_last_month)
else:
tracks = engine.make_playlist(params=params,
processors=processors)
engine.execute_playlist(tracks, Uri(playlist.uri))
overwrite = playlist.description_overwrite
suffix = playlist.description_suffix
engine.change_description(sorted(submit_parts),
uri=Uri(playlist.uri),
overwrite=overwrite,
suffix=suffix)
else:
logger.critical(f'playlist not found ({username}/{playlist_name})')
return None
else:
logger.critical(f'{username} not found')