swingmusic/server/app/lib/playlistlib.py
2022-04-08 21:01:36 +03:00

83 lines
2.1 KiB
Python

"""
This library contains all the functions related to playlists.
"""
import os
import random
import string
from PIL import Image, ImageSequence
from progress.bar import Bar
from werkzeug import datastructures
from app import api, instances, models, exceptions, settings
from app.lib import trackslib
TrackExistsInPlaylist = exceptions.TrackExistsInPlaylist
def add_track(playlistid: str, trackid: str):
"""
Adds a track to a playlist in the api.PLAYLISTS dict and to the database.
"""
for playlist in api.PLAYLISTS:
if playlist.playlistid == playlistid:
tt = trackslib.get_track_by_id(trackid)
track = {
"title": tt.title,
"artists": tt.artists,
"album": tt.album,
}
try:
playlist.add_track(track)
instances.playlist_instance.add_track_to_playlist(playlistid, track)
return
except TrackExistsInPlaylist as e:
return {"error": str(e)}, 409
def get_playlist_tracks(pid: str):
for p in api.PLAYLISTS:
if p.playlistid == pid:
return p.tracks
def create_all_playlists():
"""
Gets all playlists from the database.
"""
playlists = instances.playlist_instance.get_all_playlists()
_bar = Bar("Creating playlists", max=len(playlists))
for playlist in playlists:
api.PLAYLISTS.append(models.Playlist(playlist))
_bar.next()
_bar.finish()
def save_p_image(file: datastructures.FileStorage, pid: str):
"""
Saves the image of a playlist to the database.
"""
img = Image.open(file)
random_str = "".join(random.choices(string.ascii_letters + string.digits, k=5))
img_path = pid + str(random_str) + ".webp"
full_path = os.path.join(settings.APP_DIR, "images", "playlists", img_path)
if file.content_type == "image/gif":
frames = []
for frame in ImageSequence.Iterator(img):
frames.append(frame.copy())
frames[0].save(full_path, save_all=True, append_images=frames[1:])
return img_path
img.save(full_path, "webp")
return img_path