Metadata (metadata/metadata.py)

Metadata extraction and online enrichment.

Class: MetadataEnricher

class MetadataEnricher:
    def __init__(self, config: Config)
    def enrich_music(self, arquivo: Path) -> MusicMetadata
    def enrich_book(self, arquivo: Path) -> BookMetadata
    def enrich_comic(self, arquivo: Path) -> ComicMetadata

Music Metadata

Local Extraction (mutagen/music-tag)

• Title, Artist, Album
• Genre, Year, Track number
• Duration, Bitrate
• Album art

Online Enrichment

Provider	Data
MusicBrainz	Release IDs, artist IDs, genres
Last.fm	Genre tags, similarity data
Spotify	(via Subsonic)

Enrichment Flow

1. Extract local metadata
2. Search MusicBrainz for recording
3. Get release info
4. Merge genres
5. Enrich with Last.fm tags

Book Metadata

Local Extraction (PyPDF2, ebooklib)

• Title, Author
• ISBN, Publisher
• Page count, Language

Online Enrichment

Provider	Data
OpenLibrary	ISBN lookup, cover URLs
Google Books	Description, categories

Comic Metadata

Extraction

• Parsed from filename schema
• Title, Year, Issue number
• Series, Publisher

Format

{Title} ({Year}) - {Series} #{Issue}.ext