soulsync/core/repair_jobs/missing_cover_art.py
BoulderBadgeDad 33965c7cbd Cover Art Filler: detect missing art ON DISK + actually write it to files
Previously the filler only flagged albums whose DB thumb_url was empty and, on
apply, only updated that DB thumb_url — so albums whose files had no embedded
art and no cover.jpg (but whose DB row had a URL) were never found, and even
'applying' art never touched the files. That's the reported 'doesn't scan all
albums' gap.

New core.metadata.art_apply (reuses the post-processing standard so the user's
album_art_order is honored):
- album_has_art_on_disk(): cheap-first check — folder cover.jpg/folder.jpg
  sidecar, then embedded art in a representative track (FLAC/ID3/MP4/Vorbis).
- apply_art_to_album_files(): embeds via embed_album_art_metadata + writes
  cover.jpg via download_cover_art; only ADDS art (never rewrites the user's
  tags); read-only/unwritable files are skipped + counted, never crash.

Scan now examines every titled album and flags it when art is missing in the DB
OR on disk. Apply embeds into the album's audio files + writes cover.jpg in
addition to the DB thumbnail (media-server-only albums fall back to DB-only).

Tests cover sidecar/embedded detection, the cheap-first short-circuit, and the
apply orchestration (embeds each file + cover.jpg; read-only failures counted).
2026-06-03 22:12:56 -07:00

367 lines
16 KiB
Python

"""Missing Cover Art Filler Job — finds albums without artwork and locates art from APIs."""
import os
import re
from core.metadata.art_apply import album_has_art_on_disk
from core.metadata_service import get_client_for_source, get_primary_source, get_source_priority
from core.repair_jobs import register_job
from core.repair_jobs.base import JobContext, JobResult, RepairJob
from utils.logging_config import get_logger
logger = get_logger("repair_job.cover_art")
# Stopwords dropped before comparing album/artist names so trivial words
# ("the", "and") don't make two different names look like a match.
_NAME_STOPWORDS = {'the', 'a', 'an', 'and', 'of', 'feat', 'ft', 'featuring'}
def _norm_name(value) -> str:
"""Lowercase, strip bracketed qualifiers (Deluxe/Remaster/feat.) and
punctuation so names can be compared on their significant words."""
s = (value or '').lower()
s = re.sub(r'[\(\[\{].*?[\)\]\}]', ' ', s) # drop (...) [...] qualifiers
s = re.sub(r'\b(?:feat|ft|featuring)\b.*', ' ', s) # drop trailing "feat. X"
s = re.sub(r'[^a-z0-9]+', ' ', s)
return ' '.join(s.split())
def _name_tokens(value) -> set:
return set(_norm_name(value).split()) - _NAME_STOPWORDS
def _names_match(a, b) -> bool:
"""True when two names share all the significant words of the shorter one
(so "Album" matches "Album (Deluxe)", but unrelated titles don't)."""
ta, tb = _name_tokens(a), _name_tokens(b)
if not ta or not tb:
return False
return ta <= tb or tb <= ta
@register_job
class MissingCoverArtJob(RepairJob):
job_id = 'missing_cover_art'
display_name = 'Cover Art Filler'
description = 'Finds albums missing artwork and locates art from metadata sources'
help_text = (
'Scans your library for albums that have no cover art stored in the database. '
'For each missing cover, it searches the configured metadata sources using the '
'album name and artist to find matching artwork. If Prefer Source is set, that '
'source is tried first; otherwise the primary metadata source is used.\n\n'
'When artwork is found, a finding is created with the image URL so you can review '
'and apply it. The job does not download or embed artwork automatically.\n\n'
'Settings:\n'
'- Prefer Source: Optional source to try first; otherwise the primary metadata source is used'
)
icon = 'repair-icon-coverart'
default_enabled = True
default_interval_hours = 48
default_settings = {}
auto_fix = False
def scan(self, context: JobContext) -> JobResult:
result = JobResult()
settings = self._get_settings(context)
primary_source = get_primary_source()
source_priority = get_source_priority(primary_source)
prefer_source = settings.get('prefer_source')
if prefer_source and prefer_source != primary_source and prefer_source in source_priority:
source_priority.remove(prefer_source)
source_priority.insert(0, prefer_source)
if primary_source in source_priority:
source_priority.remove(primary_source)
source_priority.insert(1, primary_source)
# Fetch albums with missing artwork
albums = []
conn = None
try:
conn = context.db._get_connection()
cursor = conn.cursor()
cursor.execute("PRAGMA table_info(albums)")
album_columns = {column[1] for column in cursor.fetchall()}
select_cols = [
"al.id",
"al.title",
"ar.name",
"al.spotify_album_id",
"al.thumb_url",
"ar.thumb_url",
# A representative local track path, so we can check whether the
# album actually has art ON DISK (embedded / cover.jpg) — not just
# whether the DB row has a thumb_url.
("(SELECT t.file_path FROM tracks t WHERE t.album_id = al.id "
"AND t.file_path IS NOT NULL AND t.file_path != '' "
"ORDER BY t.disc_number, t.track_number LIMIT 1) AS rep_path"),
]
column_map = [
("itunes_album_id", "al.itunes_album_id"),
("deezer_album_id", "al.deezer_id"),
("discogs_album_id", "al.discogs_id"),
("hydrabase_album_id", "al.soul_id"),
]
column_index = {}
for alias, column in column_map:
if column.split('.', 1)[1] in album_columns:
column_index[alias] = len(select_cols)
select_cols.append(f"{column} AS {alias}")
# Scan every titled album — we decide per-album whether art is
# missing in the DB OR on disk (the file/cover.jpg). The on-disk
# check is cheap-first (a sidecar stat before opening any audio).
cursor.execute(f"""
SELECT {', '.join(select_cols)}
FROM albums al
LEFT JOIN artists ar ON ar.id = al.artist_id
WHERE al.title IS NOT NULL AND al.title != ''
""")
albums = cursor.fetchall()
except Exception as e:
logger.error("Error fetching albums without artwork: %s", e, exc_info=True)
result.errors += 1
return result
finally:
if conn:
conn.close()
total = len(albums)
if context.update_progress:
context.update_progress(0, total)
logger.info("Found %d albums missing cover art", total)
if context.report_progress:
context.report_progress(phase=f'Searching artwork for {total} albums...', total=total)
for i, row in enumerate(albums):
if context.check_stop():
return result
if i % 10 == 0 and context.wait_if_paused():
return result
album_id, title, artist_name, spotify_album_id, album_thumb, artist_thumb, rep_path = row[:7]
source_album_ids = {
'spotify': spotify_album_id,
'itunes': row[column_index['itunes_album_id']] if 'itunes_album_id' in column_index else None,
'deezer': row[column_index['deezer_album_id']] if 'deezer_album_id' in column_index else None,
'discogs': row[column_index['discogs_album_id']] if 'discogs_album_id' in column_index else None,
'hydrabase': row[column_index['hydrabase_album_id']] if 'hydrabase_album_id' in column_index else None,
}
result.scanned += 1
# Art can be missing in the DB (no thumb_url) and/or on disk (no
# embedded art and no cover.jpg). Skip albums that already have both.
db_missing = not (str(album_thumb).strip() if album_thumb else '')
disk_missing = bool(rep_path) and not album_has_art_on_disk(rep_path)
if not db_missing and not disk_missing:
result.skipped += 1
continue
if context.report_progress:
context.report_progress(
scanned=i + 1, total=total,
phase=f'Searching {i + 1} / {total}',
log_line=f'Searching: {title or "Unknown"}{artist_name or "Unknown"}',
log_type='info'
)
artwork_url = None
# Try source-specific IDs first, then title/artist search, in priority order.
for source in source_priority:
artwork_url = self._try_source(source, source_album_ids.get(source), title, artist_name)
if artwork_url:
break
if artwork_url:
if context.report_progress:
context.report_progress(
log_line=f'Found art: {title or "Unknown"}',
log_type='success'
)
# Create finding for user to approve
if context.create_finding:
try:
inserted = context.create_finding(
job_id=self.job_id,
finding_type='missing_cover_art',
severity='info',
entity_type='album',
entity_id=str(album_id),
file_path=None,
title=f'Missing artwork: {title or "Unknown"}',
description=f'Album "{title}" by {artist_name or "Unknown"} has no cover art. Found artwork from API.',
details={
'album_id': album_id,
'album_title': title,
'artist': artist_name,
'found_artwork_url': artwork_url,
'spotify_album_id': spotify_album_id,
'artist_thumb_url': artist_thumb or None,
# Where the files live + what was missing, so the
# apply can embed into the audio + write cover.jpg.
'album_folder': os.path.dirname(rep_path) if rep_path else None,
'db_missing': db_missing,
'disk_missing': disk_missing,
'musicbrainz_release_id': None,
}
)
if inserted:
result.findings_created += 1
else:
result.findings_skipped_dedup += 1
except Exception as e:
logger.debug("Error creating cover art finding for album %s: %s", album_id, e)
result.errors += 1
else:
result.skipped += 1
if context.update_progress and (i + 1) % 5 == 0:
context.update_progress(i + 1, total)
if context.update_progress:
context.update_progress(total, total)
logger.info("Cover art scan: %d albums checked, %d found art, %d skipped",
result.scanned, result.findings_created, result.skipped)
return result
def _try_source(self, source, source_album_id, title, artist_name):
"""Try to get album art from a specific metadata source."""
client = get_client_for_source(source)
if not client:
return None
query = f"{artist_name} {title}" if artist_name else title
try:
if source_album_id:
album_data = self._get_album_for_source(source, client, source_album_id)
artwork_url = self._extract_artwork_url(album_data)
if artwork_url:
return artwork_url
if query and hasattr(client, 'search_albums'):
# Pull a few results and only accept one whose title AND artist
# actually match this album. The old code grabbed results[0]'s
# artwork unconditionally, so a loose full-text search returning
# the wrong album gave the wrong cover.
results = client.search_albums(query, limit=5) or []
for res in results:
if not self._result_matches(res, title, artist_name):
continue
artwork_url = self._extract_artwork_url(res)
if artwork_url:
return artwork_url
candidate_id = self._extract_album_id(res)
if candidate_id:
album_data = self._get_album_for_source(source, client, candidate_id)
artwork_url = self._extract_artwork_url(album_data)
if artwork_url:
return artwork_url
except Exception as e:
logger.debug("%s art lookup failed for '%s': %s", source.capitalize(), title, e)
return None
@staticmethod
def _result_title_artist(item):
"""Pull (title, artist) from a search result that may be a dict or an
Album-like object, across the various source clients."""
if item is None:
return '', ''
if isinstance(item, dict):
title = item.get('title') or item.get('name') or item.get('album') or ''
artist = item.get('artist') or item.get('artist_name') or ''
if not artist:
artists = item.get('artists') or []
if isinstance(artists, list) and artists:
a0 = artists[0]
artist = a0.get('name', '') if isinstance(a0, dict) else str(a0)
else:
title = getattr(item, 'title', None) or getattr(item, 'name', None) or getattr(item, 'album', None) or ''
artist = getattr(item, 'artist', None) or getattr(item, 'artist_name', None) or ''
if not artist:
arts = getattr(item, 'artists', None) or []
if isinstance(arts, list) and arts:
a0 = arts[0]
artist = a0.get('name', '') if isinstance(a0, dict) else str(a0)
return str(title or ''), str(artist or '')
@classmethod
def _result_matches(cls, result, album_title, album_artist) -> bool:
"""Reject a search result unless it confidently matches the album.
Title must match; if both the result and the album carry an artist, the
artist must match too (the strongest guard against wrong covers). When
the result has no artist to compare, require an exact title match.
"""
r_title, r_artist = cls._result_title_artist(result)
# Title may carry extra qualifiers (Deluxe/Remaster) → allow subset.
if not _names_match(r_title, album_title):
return False
# Artist is the strong guard, so require its significant words to match
# EXACTLY (not subset) — "Different Artist" must NOT match "Artist".
if r_artist and album_artist:
return _name_tokens(r_artist) == _name_tokens(album_artist)
# No artist on the result → require an exact title match instead.
return _norm_name(r_title) == _norm_name(album_title)
@staticmethod
def _get_album_for_source(source, client, album_id):
if source == 'spotify':
return client.get_album(album_id)
return client.get_album(album_id, include_tracks=False)
@staticmethod
def _extract_album_id(item):
if hasattr(item, 'id'):
return getattr(item, 'id', None)
if isinstance(item, dict):
return item.get('id')
return None
@staticmethod
def _extract_artwork_url(item):
if not item:
return None
if hasattr(item, 'image_url') and getattr(item, 'image_url', None):
return item.image_url
if isinstance(item, dict):
if item.get('image_url'):
return item['image_url']
images = item.get('images') or []
if images and isinstance(images, list):
first = images[0]
if isinstance(first, dict):
return first.get('url')
return None
def _get_settings(self, context: JobContext) -> dict:
if not context.config_manager:
return self.default_settings.copy()
cfg = context.config_manager.get(f'repair.jobs.{self.job_id}.settings', {})
merged = self.default_settings.copy()
merged.update(cfg)
return merged
def estimate_scope(self, context: JobContext) -> int:
conn = None
try:
conn = context.db._get_connection()
cursor = conn.cursor()
# Upper bound: every titled album is examined (the per-album DB/disk
# art check decides which actually need filling).
cursor.execute("""
SELECT COUNT(*) FROM albums
WHERE title IS NOT NULL AND title != ''
""")
row = cursor.fetchone()
return row[0] if row else 0
except Exception:
return 0
finally:
if conn:
conn.close()