from sqlalchemy import Column, String, Integer, Boolean, DateTime, ForeignKey
from sqlalchemy.sql import func
from ..db.database import Base

class Playlist(Base):
    __tablename__ = "playlists"

    id = Column(String, primary_key=True, index=True)
    name = Column(String, nullable=False)
    description = Column(String, default="")
    cover_art_path = Column(String)
    created_at = Column(DateTime(timezone=True), server_default=func.now())
    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
    mood_category = Column(String)
    is_shared = Column(Boolean, default=False)
    share_token = Column(String, unique=True, index=True)

class PlaylistSong(Base):
    __tablename__ = "playlist_songs"

    playlist_id = Column(String, ForeignKey("playlists.id"), primary_key=True)
    song_id = Column(String, ForeignKey("songs.id"), primary_key=True)
    position = Column(Integer, default=0)
    added_at = Column(DateTime(timezone=True), server_default=func.now())