"""release_artist module."""

from sqlalchemy import Column
from sqlalchemy import Integer
from sqlalchemy import String

from artist.connectors import mysql


class ReleaseArtist(mysql.BaseModel):
    """Release Artist Model.

    Represents an artist in a release.
    """

    __tablename__ = 'release_artist'

    release_artist_id = Column(
        Integer,
        primary_key=True,
        autoincrement=True,
        nullable=False
    )
    release_id = Column(Integer, nullable=False)
    artist_info_id = Column(Integer)
    artist_name = Column(String, nullable=False)
    role = Column(String, nullable=False)

    def to_dict(self):
        """Return dictionary of release artist data.

        Returns:
            dict: release artist metadata.
        """
        return {
            'id': self.release_artist_id,
            'name': self.artist_name,
            'role': self.role}