from extensions import db

class ServiceInstance(db.Model):
    __tablename__ = 'service_instance'

    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
    name = db.Column(db.String(255), unique=True, nullable=False)
    description = db.Column(db.String(255), nullable=True)
    created_at = db.Column(db.DateTime, default=db.func.current_timestamp())
    updated_at = db.Column(db.DateTime, default=db.func.current_timestamp(), onupdate=db.func.current_timestamp())

    # Relacionamento com o modelo 'Service' através da chave estrangeira
    service_id = db.Column(db.Integer, db.ForeignKey('service.id'), nullable=False)

    def __repr__(self):
        return f"<ServiceInstance {self.name}>"