1 # -*- coding: utf-8 -*-
2 # Copyright (c) 2020 kaliko <kaliko@azylum.org>
4 # This file is part of sima
6 # sima is free software: you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation, either version 3 of the License, or
9 # (at your option) any later version.
11 # sima is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with sima. If not, see <http://www.gnu.org/licenses/>.
21 Add titles based on tags
24 # standard library import
27 # third parties components
30 from ...lib.plugin import Plugin
31 from ...lib.track import Track
32 from ...utils.utils import PluginConfException, PluginException
34 def forge_filter(cfg):
35 tags = set(cfg.keys()) & Tags.supported_tags
36 cfg_filter = cfg.get('filter', None)
39 mpd_filter.append(cfg_filter)
41 if not cfg[tag]: # avoid empty tags entries in config
44 patt = '|'.join(map(str.strip, cfg[tag].split(',')))
45 mpd_filter.append(f"({tag} =~ '({patt})')")
47 mpd_filter.append(f"({tag} == '{cfg[tag].strip()}')")
48 mpd_filter = ' AND '.join(mpd_filter)
49 if 'AND' in mpd_filter:
50 mpd_filter = f'({mpd_filter})'
55 """Add track based on tags content
57 supported_tags = {'comment', 'date', 'genre', 'label', 'originaldate'}
59 def __init__(self, daemon):
60 super().__init__(daemon)
63 self._setup_tagsneeded()
64 self.mpd_filter = forge_filter(self.plugin_conf)
65 self.log.debug('mpd filter: %s', self.mpd_filter)
67 def _control_conf(self):
68 sup_tags = Tags.supported_tags
69 if not self.plugin_conf.get('filter', None) and \
70 self.plugin_conf.keys().isdisjoint(sup_tags):
72 'Found no config for %s plugin! Need at least "filter" or a supported tag' % self)
73 self.log.info('Supported Tags are : %s', ', '.join(sup_tags))
74 raise PluginConfException('plugin misconfiguration')
76 def _setup_tagsneeded(self):
77 self.log.debug('%s plugin needs the followinng metadata: %s',
78 self, set(self.plugin_conf.keys()) & Tags.supported_tags)
79 tags = set(self.plugin_conf.keys()) & Tags.supported_tags
80 self.player.needed_tags |= tags
82 def _get_history(self):
83 """Constructs list of already played artists.
85 duration = self.daemon.config.getint('sima', 'history_duration')
86 tracks_from_db = self.daemon.sdb.get_history(duration=duration)
87 hist = [Track(file=tr[3], artist=tr[0]) for tr in tracks_from_db]
91 if (0, 21, 0) > tuple(map(int, self.player.mpd_version.split('.'))):
92 self.log.warning('MPD protocol version: %s < 0.21.0',
93 self.player.mpd_version)
94 self.log.error('Need at least MPD 0.21 to use Tags plugin (filters required)')
95 self.player.disconnect()
96 raise PluginException('MPD >= 0.21 required')
98 def callback_need_track(self):
100 target = self.plugin_conf.getint('track_to_add')
101 tracks = self.player.find(self.mpd_filter)
102 random.shuffle(tracks)
103 history = self._get_history()
106 if trk in self.player.queue or \
108 self.log.debug('%s already queued', trk)
111 self.log.debug('%s in history', trk)
113 candidates.append(trk)
114 self.log.info('Tags candidate: {}'.format(trk))
115 if len(candidates) >= target:
118 self.log.info('Tags plugin failed to find some tracks')
122 # vim: ai ts=4 sw=4 sts=4 expandtab