-#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Core Object dealing with plugins and player client
"""
-__version__ = '0.12.0.b'
+__version__ = '0.12.0pr1'
__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
+from .client import PlayerError, PlayerUnHandledError
+from .lib.simadb import SimaDB
+from .lib.daemon import Daemon
-class Sima(object):
+class Sima(Daemon):
"""Main class, plugin and player management
"""
- def __init__(self):
+ def __init__(self, conf):
+ ## Set daemon
+ Daemon.__init__(self, conf.get('daemon', 'pidfile'))
+ self.enabled = True
+ self.config = conf
+ self.sdb = SimaDB(db_path=conf.get('sima', 'db_file'))
+ PlayerClient.database = self.sdb
self.log = getLogger('sima')
self.plugins = list()
- self.player = None
- self.connect_player()
- self.current_track = None
+ self.player = self.__get_player() # Player client
+ try:
+ self.player.connect()
+ except (PlayerError, PlayerUnHandledError) as err:
+ self.log.error('Fails to connect player: {}'.format(err))
+ self.shutdown()
+ self.short_history = deque(maxlen=60)
+
+ def __get_player(self):
+ """Instanciate the player"""
+ host = self.config.get('MPD', 'host')
+ port = self.config.get('MPD', 'port')
+ pswd = self.config.get('MPD', 'password', fallback=None)
+ return PlayerClient(host, port, pswd)
+
+ def add_history(self):
+ self.short_history.appendleft(self.player.current)
def register_plugin(self, plugin_class):
+ """Registers plubin in Sima instance..."""
self.plugins.append(plugin_class(self))
def foreach_plugin(self, method, *args, **kwds):
+ """Plugin's callbacks dispatcher"""
for plugin in self.plugins:
+ #self.log.debug('dispatching {0} to {1}'.format(method, plugin))
getattr(plugin, method)(*args, **kwds)
- def connect_player(self):
- """Instanciate player client and connect
+ def need_tracks(self):
+ if not self.enabled:
+ self.log.debug('Queueing disabled!')
+ return False
+ queue = self.player.queue
+ queue_trigger = self.config.getint('sima', 'queue_length')
+ self.log.debug('Currently {0} track(s) ahead. (target {1})'.format(
+ len(queue), queue_trigger))
+ if len(queue) < queue_trigger:
+ return True
+ return False
+
+ def queue(self):
+ to_add = list()
+ for plugin in self.plugins:
+ pl_callback = getattr(plugin, 'callback_need_track')()
+ if pl_callback:
+ to_add.extend(pl_callback)
+ if not to_add:
+ self.log.warning('Queue plugins returned nothing!')
+ for plugin in self.plugins:
+ pl_callback = getattr(plugin, 'callback_need_track_fb')()
+ if pl_callback:
+ to_add.extend(pl_callback)
+ 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
"""
- self.player = PlayerClient() # Player client
- self.player.connect()
+ sleepfor = [5, 10, 60, 300, 1200, 3600]
+ while True:
+ tmp = sleepfor.pop(0)
+ sleepfor.append(tmp)
+ self.log.info('Trying to reconnect in {:>4d} seconds'.format(tmp))
+ time.sleep(tmp)
+ try:
+ self.player.connect()
+ except PlayerError:
+ continue
+ except PlayerUnHandledError as err:
+ #TODO: unhandled Player exceptions
+ self.log.warning('Unhandled player exception: %s' % err)
+ self.log.info('Got reconnected')
+ break
def shutdown(self):
"""General shutdown method
"""
+ self.log.warning('Starting shutdown.')
self.player.disconnect()
self.foreach_plugin('shutdown')
+ self.log.info('The way is shut, it was made by those who are dead. '
+ 'And the dead keep it…')
+ self.log.info('bye...')
+
def run(self):
- """Dispatching callbacks to plugins
"""
- self.log.debug(self.player.status())
+ """
while 42:
- # hanging here untill a monitored event is raised in the player
- changed = self.player.monitor()
- self.log.debug(self.player.current)
- if 'playlist' in changed:
- self.foreach_plugin('callback_playlist')
- if 'player' in changed:
- pass
-
+ 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.reconnect_player()
+ del(self.changed)
+ def loop(self):
+ """Dispatching callbacks to plugins
+ """
+ # hanging here untill a monitored event is raised in the player
+ if getattr(self, 'changed', False): # first iteration exception
+ self.changed = self.player.monitor()
+ else: # first iteration goes through else
+ self.changed = ['playlist', 'player', 'skipped']
+ self.log.debug('changed: {}'.format(', '.join(self.changed)))
+ if 'playlist' in self.changed:
+ self.foreach_plugin('callback_playlist')
+ 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.add_history()
+ self.foreach_plugin('callback_next_song')
+ if self.need_tracks():
+ self.queue()
# VIM MODLINE
# vim: ai ts=4 sw=4 sts=4 expandtab