swingmusic/app/lib/playlistlib.py
Mungai Njoroge 198957bcae
Move server code to this repo (#95)
move server code to this repo
2023-01-13 20:01:52 +03:00

116 lines
2.9 KiB
Python

"""
This library contains all the functions related to playlists.
"""
import os
import random
import string
from datetime import datetime
from typing import Any
from PIL import Image, ImageSequence
from app import settings
from app.logger import log
def create_thumbnail(image: Any, img_path: str) -> str:
"""
Creates a 250 x 250 thumbnail from a playlist image
"""
thumb_path = "thumb_" + img_path
full_thumb_path = os.path.join(settings.APP_DIR, "images", "playlists", thumb_path)
aspect_ratio = image.width / image.height
new_w = round(250 * aspect_ratio)
thumb = image.resize((new_w, 250), Image.ANTIALIAS)
thumb.save(full_thumb_path, "webp")
return thumb_path
def create_gif_thumbnail(image: Any, img_path: str):
"""
Creates a 250 x 250 thumbnail from a playlist image
"""
thumb_path = "thumb_" + img_path
full_thumb_path = os.path.join(settings.APP_DIR, "images", "playlists", thumb_path)
frames = []
for frame in ImageSequence.Iterator(image):
aspect_ratio = frame.width / frame.height
new_w = round(250 * aspect_ratio)
thumb = frame.resize((new_w, 250), Image.ANTIALIAS)
frames.append(thumb)
frames[0].save(full_thumb_path, save_all=True, append_images=frames[1:])
return thumb_path
def save_p_image(file, 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_img_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_img_path, save_all=True, append_images=frames[1:])
create_gif_thumbnail(img, img_path=img_path)
return img_path
img.save(full_img_path, "webp")
create_thumbnail(img, img_path=img_path)
return img_path
class ValidatePlaylistThumbs:
"""
Removes all unused images in the images/playlists folder.
"""
def __init__(self) -> None:
images = []
playlists = Get.get_all_playlists()
log.info("Validating playlist thumbnails")
for playlist in playlists:
if playlist.image:
img_path = playlist.image.split("/")[-1]
thumb_path = playlist.thumb.split("/")[-1]
images.append(img_path)
images.append(thumb_path)
p_path = os.path.join(settings.APP_DIR, "images", "playlists")
for image in os.listdir(p_path):
if image not in images:
os.remove(os.path.join(p_path, image))
log.info("Validating playlist thumbnails ... ✅")
def create_new_date():
return datetime.now()
# TODO: Fix ValidatePlaylistThumbs