Files
swingmusic-extended/app/store/tracks.py
T
cwilvx b0e904c84f port search to stores
+ fix favorites
2024-07-27 21:44:33 +03:00

318 lines
8.6 KiB
Python

# from tqdm import tqdm
import itertools
from typing import Callable, Iterable
from app.db.libdata import TrackTable
from app.models import Track
from app.utils.auth import get_current_userid
from app.utils.remove_duplicates import remove_duplicates
TRACKS_LOAD_KEY = ""
class TrackGroup:
"""
Tracks grouped under the same trackhash.
"""
def __init__(self, tracks: list[Track]):
self.tracks = tracks
def append(self, track: Track):
"""
Adds a track to the group.
"""
self.tracks.append(track)
def remove(self, track: Track):
"""
Removes a track from the group.
"""
self.tracks.remove(track)
def increment_playcount(self, duration: int, timestamp: int):
"""
Increments the playcount of all tracks in the group.
"""
for track in self.tracks:
track.playcount += 1
track.lastplayed = timestamp
track.playduration += duration
def toggle_favorite_user(self, userid: int | None = None):
"""
Adds or removes a user from the list of users who have favorited the track.
"""
if userid is None:
userid = get_current_userid()
for track in self.tracks:
track.toggle_favorite_user(userid)
def get_best(self):
"""
Returns the track with higest bitrate.
"""
return max(self.tracks, key=lambda x: x.bitrate)
def __len__(self):
return len(self.tracks)
class classproperty(property):
"""
A class property decorator.
"""
def __get__(self, owner_self, owner_cls):
if self.fget:
return self.fget(owner_cls)
class TrackStore:
# {'trackhash': Track[]}
trackhashmap: dict[str, TrackGroup] = dict()
@classproperty
def tracks(cls) -> list[Track]:
return cls.get_flat_list()
@classmethod
def get_flat_list(cls):
"""
Returns a flat list of all tracks.
"""
return list(
itertools.chain.from_iterable(
[group.tracks for group in cls.trackhashmap.values()]
)
)
@classmethod
def load_all_tracks(cls, instance_key: str):
"""
Loads all tracks from the database into the store.
"""
print("Loading tracks... ", end="")
global TRACKS_LOAD_KEY
TRACKS_LOAD_KEY = instance_key
cls.trackhashmap = dict()
tracks = TrackTable.get_all()
# INFO: Load all tracks into the dict store
for track in tracks:
if instance_key != TRACKS_LOAD_KEY:
return
exists = cls.trackhashmap.get(track.trackhash, None)
if not exists:
cls.trackhashmap[track.trackhash] = TrackGroup([track])
else:
cls.trackhashmap[track.trackhash].append(track)
@classmethod
def add_track(cls, track: Track):
"""
Adds a single track to the store.
"""
group = cls.trackhashmap.get(track.trackhash, None)
if group:
return group.append(track)
cls.trackhashmap[track.trackhash] = TrackGroup([track])
@classmethod
def add_tracks(cls, tracks: list[Track]):
"""
Adds multiple tracks to the store.
"""
for track in tracks:
cls.add_track(track)
@classmethod
def remove_track(cls, track: Track):
"""
Removes a single track from the store.
"""
group = cls.trackhashmap.get(track.trackhash, None)
if group:
group.remove(track)
if len(group) == 0:
del cls.trackhashmap[track.trackhash]
@classmethod
def remove_track_by_filepath(cls, filepath: str):
"""
Removes a track from the store by its filepath.
"""
return cls.remove_tracks_by_filepaths({filepath})
@classmethod
def remove_tracks_by_filepaths(cls, filepaths: set[str]):
"""
Removes multiple tracks from the store by their filepaths.
"""
filecount = len(filepaths)
for trackhash in cls.trackhashmap:
group = cls.trackhashmap[trackhash]
for track in group.tracks:
if track.filepath in filepaths:
group.remove(track)
if len(group) == 0:
del cls.trackhashmap[trackhash]
filecount -= 1
if filecount == 0:
break
@classmethod
def count_tracks_by_trackhash(cls, trackhash: str) -> int:
"""
Counts the number of tracks with a specific trackhash.
"""
return len(cls.trackhashmap.get(trackhash, []))
# ================================================
# ================== GETTERS =====================
# ================================================
@classmethod
def get_tracks_by_trackhashes(cls, trackhashes: Iterable[str]) -> list[Track]:
"""
Returns a list of tracks by their hashes.
"""
hash_set = set(trackhashes)
tracks: list[Track] = []
for trackhash in hash_set:
group = cls.trackhashmap.get(trackhash, None)
if group:
track = group.get_best()
tracks.append(track)
# sort the tracks in the order of the given trackhashes
if type(trackhashes) == list:
tracks.sort(key=lambda t: trackhashes.index(t.trackhash))
return tracks
@classmethod
def get_tracks_by_filepaths(cls, paths: list[str]) -> list[Track]:
"""
Returns all tracks matching the given paths.
⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔
"""
# tracks = sorted(cls.trackhashmap, key=lambda x: x.filepath)
# tracks = use_bisection(tracks, "filepath", paths)
# return [track for track in tracks if track is not None]
# return cls.find_tracks_by(key="filepath", value=paths)
tracks: list[Track] = []
for trackhash in cls.trackhashmap:
group = cls.trackhashmap.get(trackhash)
if not group:
continue
for track in group.tracks:
if track.filepath in paths:
tracks.append(track)
return tracks
@classmethod
def find_tracks_by(
cls,
key: str,
value: str,
predicate: Callable = lambda prop_value, value: prop_value == value,
including_duplicates: bool = False,
):
"""
Find all tracks by a specific key.
"""
tracks: list[Track] = []
for trackhash in cls.trackhashmap:
group = cls.trackhashmap.get(trackhash, None)
if not group:
continue
for track in group.tracks:
prop_value = getattr(track, key)
if predicate(prop_value, value):
tracks.append(track)
if including_duplicates:
return tracks
return remove_duplicates(tracks)
@classmethod
def get_tracks_by_albumhash(cls, album_hash: str) -> list[Track]:
"""
Returns all tracks matching the given album hash.
"""
return cls.find_tracks_by(key="albumhash", value=album_hash)
@classmethod
def get_tracks_by_artisthash(cls, artisthash: str):
"""
Returns all tracks matching the given artist. Duplicate tracks are removed.
"""
predicate = lambda artisthashes, artisthash: artisthash in artisthashes
return cls.find_tracks_by(
key="artisthashes", value=artisthash, predicate=predicate
)
@classmethod
def get_tracks_in_path(cls, path: str):
"""
Returns all tracks in the given path.
"""
predicate: Callable[[str, str], bool] = (
lambda track_folder, path: track_folder.startswith(path)
)
return cls.find_tracks_by(
key="folder",
value=path,
predicate=predicate,
including_duplicates=True,
)
@classmethod
def get_recently_added(cls, start: int, limit: int | None):
"""
Returns the most recently added tracks.
"""
tracks = cls.get_flat_list()
if limit is None:
return sorted(tracks, key=lambda x: x.last_mod, reverse=True)[start:]
return sorted(tracks, key=lambda x: x.last_mod, reverse=True)[start:limit]
@classmethod
def get_recently_played(cls, limit: int):
tracks = cls.get_flat_list()
return sorted(tracks, key=lambda x: x.lastplayed, reverse=True)[:limit]