-#!/usr/bin/env python3
# -*- coding: utf-8 -*-
+# Copyright (c) 2009-2015, 2020, 2021 kaliko <kaliko@azylum.org>
+#
+# This file is part of sima
+#
+# sima is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# sima is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with sima. If not, see <http://www.gnu.org/licenses/>.
+#
+#
"""Core Object dealing with plugins and player client
"""
-__version__ = '0.12.0.b'
-__author__ = 'kaliko jack'
-__url__ = 'git://git.kaliko.me/sima.git'
-
-import sys
import time
+from collections import deque
from logging import getLogger
-from .client import PlayerClient, Track
-from .client import PlayerError, PlayerUnHandledError
+from .mpdclient import MPD as PlayerClient
+from .mpdclient import PlayerError
from .lib.simadb import SimaDB
+from .lib.daemon import Daemon
+from .utils.utils import SigHup
+
-class Sima(object):
+class Sima(Daemon):
"""Main class, plugin and player management
"""
- def __init__(self, conf, dbfile):
+ def __init__(self, conf):
+ # Set daemon
+ Daemon.__init__(self, conf.get('daemon', 'pidfile'))
+ self.enabled = True
self.config = conf
- self.sdb = SimaDB(db_path=dbfile)
+ self.sdb = SimaDB(db_path=conf.get('sima', 'db_file'))
+ PlayerClient.database = self.sdb
self.log = getLogger('sima')
- self.plugins = list()
- self.player = PlayerClient() # Player client
- try:
- self.player.connect()
- except (PlayerError, PlayerUnHandledError) as err:
- self.log.error('Fails to connect player: {}'.format(err))
- self.shutdown()
- self.current_track = None
+ self._plugins = list()
+ self._core_plugins = list()
+ self.player = PlayerClient(conf) # MPD client
+ self.short_history = deque(maxlen=60)
+ self.changed = None
+
+ def add_history(self):
+ """Handle local, in memory, short history"""
+ self.short_history.appendleft(self.player.current)
def register_plugin(self, plugin_class):
- """Registers plubin in Sima instance..."""
- self.plugins.append(plugin_class(self))
+ """Registers plugin in Sima instance..."""
+ plgn = plugin_class(self)
+ prio = int(plgn.priority)
+ self._plugins.append((prio, plgn))
+
+ def register_core_plugin(self, plugin_class):
+ """Registers core plugins"""
+ plgn = plugin_class(self)
+ prio = int(plgn.priority)
+ self._core_plugins.append((prio, plgn))
def foreach_plugin(self, method, *args, **kwds):
"""Plugin's callbacks dispatcher"""
+ self.log.trace('dispatching %s to plugins', method) # pylint: disable=no-member
+ for plugin in self.core_plugins:
+ getattr(plugin, method)(*args, **kwds)
for plugin in self.plugins:
getattr(plugin, method)(*args, **kwds)
+ @property
+ def core_plugins(self):
+ return [plugin[1] for plugin in
+ sorted(self._core_plugins, key=lambda pl: pl[0], reverse=True)]
+
+ @property
+ def plugins(self):
+ return [plugin[1] for plugin in
+ sorted(self._plugins, key=lambda pl: pl[0], reverse=True)]
+
+ def need_tracks(self):
+ """Is the player in need for tracks"""
+ if not self.enabled:
+ self.log.debug('Queueing disabled!')
+ return False
+ queue_trigger = self.config.getint('sima', 'queue_length')
+ if self.player.playmode.get('random'):
+ queue = self.player.playlist
+ self.log.debug('Currently %s track(s) in the playlist. (target %s)', len(queue), queue_trigger)
+ else:
+ queue = self.player.queue
+ self.log.debug('Currently %s track(s) ahead. (target %s)', len(queue), queue_trigger)
+ if len(queue) < queue_trigger:
+ return True
+ return False
+
+ def queue(self):
+ to_add = list()
+ for plugin in self.plugins:
+ self.log.debug('callback_need_track: %s', plugin)
+ pl_candidates = getattr(plugin, 'callback_need_track')()
+ if pl_candidates:
+ to_add.extend(pl_candidates)
+ if to_add:
+ break
+ for track in to_add:
+ self.player.add(track)
+
def reconnect_player(self):
"""Trying to reconnect cycling through longer timeout
cycle : 5s 10s 1m 5m 20m 1h
"""
sleepfor = [5, 10, 60, 300, 1200, 3600]
+ # reset change
+ self.changed = None
while True:
tmp = sleepfor.pop(0)
sleepfor.append(tmp)
- self.log.info('Trying to reconnect in {:>4d} seconds'.format(tmp))
+ self.log.info('Trying to reconnect in %4d seconds', tmp)
time.sleep(tmp)
try:
self.player.connect()
- except PlayerError:
+ except PlayerError as err:
+ self.log.debug(err)
continue
- except PlayerUnHandledError as err:
- #TODO: unhandled Player exceptions
- self.log.warning('Unhandled player exception: %s' % err)
self.log.info('Got reconnected')
break
+ self.foreach_plugin('start')
+
+ def hup_handler(self, signum, frame):
+ self.log.warning('Caught a sighup!')
+ # Cleaning pending command
+ self.player.clean()
+ self.foreach_plugin('shutdown')
+ self.player.disconnect()
+ raise SigHup('SIGHUP caught!')
def shutdown(self):
"""General shutdown method
"""
self.log.warning('Starting shutdown.')
- self.player.disconnect()
- self.foreach_plugin('shutdown')
-
+ # Cleaning pending command
+ try:
+ self.player.clean()
+ self.foreach_plugin('shutdown')
+ self.player.disconnect()
+ except PlayerError as err:
+ self.log.error('Player error during shutdown: %s', err)
self.log.info('The way is shut, it was made by those who are dead. '
'And the dead keep it…')
self.log.info('bye...')
- sys.exit(0)
def run(self):
"""
"""
- self.current_track = Track()
+ try:
+ self.log.info('Connecting MPD: %(host)s:%(port)s', self.config['MPD'])
+ self.player.connect()
+ self.foreach_plugin('start')
+ except PlayerError as err:
+ self.log.warning('Player: %s', err)
+ self.reconnect_player()
while 42:
try:
self.loop()
- except PlayerUnHandledError as err:
- #TODO: unhandled Player exceptions
- self.log.warning('Unhandled player exception: {}'.format(err))
- del(self.player)
- self.player = PlayerClient()
- time.sleep(10)
except PlayerError as err:
- self.log.warning('Player error: %s' % err)
+ self.log.warning('Player error: %s', err)
self.reconnect_player()
def loop(self):
"""Dispatching callbacks to plugins
"""
- # hanging here untill a monitored event is raised in the player
- if getattr(self, 'changed', False): # first loop detection
- self.changed = self.player.monitor()
- else:
+ # hanging here until a monitored event is raised in the player
+ if self.changed is None: # first iteration goes through else
self.changed = ['playlist', 'player', 'skipped']
- self.log.debug('changed: {}'.format(', '.join(self.changed)))
+ else: # Wait for a change
+ self.changed = self.player.monitor()
+ self.log.debug('changed: %s', ', '.join(self.changed))
if 'playlist' in self.changed:
self.foreach_plugin('callback_playlist')
- if 'player' in self.changed:
+ if 'player' in self.changed or 'options' in self.changed:
self.foreach_plugin('callback_player')
+ if 'database' in self.changed:
+ self.foreach_plugin('callback_player_database')
if 'skipped' in self.changed:
if self.player.state == 'play':
- self.log.info('Playing: {}'.format(self.player.current))
+ self.log.info('Playing: %s', self.player.current)
+ self.add_history()
self.foreach_plugin('callback_next_song')
- self.current_track = self.player.current
-
+ if self.need_tracks():
+ self.queue()
# VIM MODLINE
# vim: ai ts=4 sw=4 sts=4 expandtab
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