mirror of
https://github.com/tcsenpai/swingmusic.git
synced 2025-06-06 03:05:35 +00:00
4271a6f4a0
+ use instance keys to stop multiple instances of populate + move Populate error to a new file + misc
133 lines
4.0 KiB
Python
133 lines
4.0 KiB
Python
"""
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Contains everything that deals with image color extraction.
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"""
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import json
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from pathlib import Path
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import colorgram
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from tqdm import tqdm
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from app import settings
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from app.db.sqlite.albumcolors import SQLiteAlbumMethods as aldb
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from app.db.sqlite.artistcolors import SQLiteArtistMethods as adb
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from app.db.sqlite.utils import SQLiteManager
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from app.store.artists import ArtistStore
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from app.store.albums import AlbumStore
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from app.logger import log
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from app.lib.errors import PopulateCancelledError
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PROCESS_ALBUM_COLORS_KEY = ""
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PROCESS_ARTIST_COLORS_KEY = ""
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def get_image_colors(image: str, count=1) -> list[str]:
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"""Extracts n number of the most dominant colors from an image."""
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try:
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colors = sorted(colorgram.extract(image, count), key=lambda c: c.hsl.h)
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except OSError:
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return []
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formatted_colors = []
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for color in colors:
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color = f"rgb({color.rgb.r}, {color.rgb.g}, {color.rgb.b})"
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formatted_colors.append(color)
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return formatted_colors
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def process_color(item_hash: str, is_album=True):
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path = (
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settings.Paths.get_sm_thumb_path()
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if is_album
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else settings.Paths.get_artist_img_sm_path()
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)
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path = Path(path) / (item_hash + ".webp")
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if not path.exists():
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return
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return get_image_colors(str(path))
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class ProcessAlbumColors:
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"""
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Extracts the most dominant color from the album art and saves it to the database.
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"""
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def __init__(self, instance_key: str) -> None:
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global PROCESS_ALBUM_COLORS_KEY
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PROCESS_ALBUM_COLORS_KEY = instance_key
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albums = [
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a
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for a in AlbumStore.albums
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if a is not None and a.colors is not None and len(a.colors) == 0
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]
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with SQLiteManager() as cur:
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try:
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for album in tqdm(albums, desc="Processing missing album colors"):
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if PROCESS_ALBUM_COLORS_KEY != instance_key:
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raise PopulateCancelledError(
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"A newer 'ProcessAlbumColors' instance is running. Stopping this one."
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)
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# TODO: Stop hitting the database for every album.
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# Instead, fetch all the data from the database and
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# check from memory.
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exists = aldb.exists(album.albumhash, cur=cur)
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if exists:
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continue
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colors = process_color(album.albumhash)
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if colors is None:
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continue
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album.set_colors(colors)
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color_str = json.dumps(colors)
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aldb.insert_one_album(cur, album.albumhash, color_str)
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finally:
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cur.close()
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class ProcessArtistColors:
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"""
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Extracts the most dominant color from the artist art and saves it to the database.
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"""
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def __init__(self, instance_key: str) -> None:
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all_artists = [a for a in ArtistStore.artists if len(a.colors) == 0]
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global PROCESS_ARTIST_COLORS_KEY
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PROCESS_ARTIST_COLORS_KEY = instance_key
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with SQLiteManager() as cur:
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try:
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for artist in tqdm(
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all_artists, desc="Processing missing artist colors"
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):
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if PROCESS_ARTIST_COLORS_KEY != instance_key:
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raise PopulateCancelledError(
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"A newer 'ProcessArtistColors' instance is running. Stopping this one."
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)
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exists = adb.exists(artist.artisthash, cur=cur)
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if exists:
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continue
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colors = process_color(artist.artisthash, is_album=False)
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if colors is None:
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continue
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artist.set_colors(colors)
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adb.insert_one_artist(cur, artist.artisthash, colors)
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finally:
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cur.close()
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