"""Abstract base class for match participant models."""

from app.extensions import db
from app.time_utils import utc_now_naive


class BaseParticipant(db.Model):
    """Shared schema for match participants."""

    __abstract__ = True

    player_id = db.Column(db.Integer, db.ForeignKey('users.id'), nullable=False)
    added_at = db.Column(db.DateTime, default=utc_now_naive)