from sqlalchemy import ForeignKey, String
from sqlalchemy.orm import Mapped, mapped_column, relationship

from ..core.db import Base


class AudioPlaylist(Base):
    __tablename__ = "audioplaylists"
    id: Mapped[int] = mapped_column(primary_key=True)
    title: Mapped[str] = mapped_column(String(64))

    audios: Mapped[list["Audio"]] = relationship(back_populates="playlist")


class Audio(Base):
    __tablename__ = "audios"
    id: Mapped[int] = mapped_column(primary_key=True)
    filename: Mapped[str] = mapped_column(String(255), unique=True)
    path: Mapped[str] = mapped_column(String(512))
    preview_path: Mapped[str] = mapped_column(String(256))
    name: Mapped[str] = mapped_column(String(255))

    playlist_id: Mapped[int | None] = mapped_column(ForeignKey("audioplaylists.id"))
    playlist: Mapped[AudioPlaylist | None] = relationship(back_populates="audios")