86 lines
2.4 KiB
Python
86 lines
2.4 KiB
Python
# Copyright 2021 (c) Anna Schumaker.
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from lib import publisher
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from . import track
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import threading
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class TrackAllocator:
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def __init__(self):
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self.tracks = dict()
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self.nextid = 0
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self.lock = threading.Lock()
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self.Added = publisher.Publisher()
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self.Removed = publisher.Publisher()
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self.Updated = publisher.Publisher()
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def __alloc_track__(self, lib, filepath):
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with self.lock:
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trak = track.Track(self.nextid, filepath, lib)
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self.tracks[self.nextid] = trak
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self.nextid += 1
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self.Added.publish(trak)
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return trak
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def __getitem__(self, id):
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with self.lock:
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return self.tracks.get(id, None)
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def __getstate__(self):
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with self.lock:
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return { "tracks" : self.tracks,
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"nextid" : self.nextid }
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def __len__(self):
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with self.lock:
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return len(self.tracks)
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def __setstate__(self, state):
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self.__dict__.update(state)
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self.lock = threading.Lock()
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self.Added = publisher.Publisher()
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self.Removed = publisher.Publisher()
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self.Updated = publisher.Publisher()
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def allocate(self, lib, filepath):
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try:
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return self.__alloc_track__(lib, filepath)
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except Exception as e:
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pass
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def autoremove(self, lib):
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with self.lock:
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to_rm = [ trak for trak in self.tracks.values() \
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if trak.library == lib and not trak.filepath().exists() ]
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for trak in to_rm:
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trak.about_to_remove()
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del self.tracks[trak.trackid]
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self.Removed.publish(trak)
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return to_rm
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def list_tracks(self, lib):
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with self.lock:
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for (id, track) in self.tracks.items():
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if track.library ==lib:
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yield track
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def load_tags(self):
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for (id, track) in self.tracks.items():
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track.__set_tags__()
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def played(self, track):
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with self.lock:
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track.played()
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self.Updated.publish(track)
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def remove(self, track):
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with self.lock:
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track.about_to_remove()
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del self.tracks[track.trackid]
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self.Removed.publish(track)
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def reset(self):
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with self.lock:
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self.nextid = 0
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self.tracks.clear()
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self.Added.reset()
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self.Removed.reset()
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