Add Library

from pathlib import Path

from typing import Self

from dataclasses import dataclass

from collections.abc import Sequence

from tqdm import tqdm

from karaokatalog.Song import Song

@dataclass(frozen=True)

class Library:

    songs: Sequence[Song]

    unparseable_song_txts: Sequence[Path]

    @classmethod

    def from_dir(cls, library_dir: Path) -> Self:

        """

        Load a library from a directory by recursively finding all txt files in there

        and interpreting them as UltraStar Song TXT files.

        """

        maybe_songs_by_path = {

            song_txt: Song.from_song_txt(song_txt)

            for song_txt in tqdm(library_dir.rglob("*.txt"), unit=" songs")

        }

        songs = tuple(song for song in maybe_songs_by_path.values() if song)

        unparseable_song_txts = tuple(

            song_txt for song_txt, song in maybe_songs_by_path.items() if not song

        )

        return cls(songs, unparseable_song_txts)