from typing import TYPE_CHECKING, Optional

from sqlalchemy.orm import mapped_column, Mapped, relationship

from models.base import BaseModel
from models.mixins import IdMixin

if TYPE_CHECKING:
    from models import Deal


class DealGroup(BaseModel, IdMixin):
    __tablename__ = "deal_groups"

    name: Mapped[Optional[str]] = mapped_column()
    lexorank: Mapped[str] = mapped_column()
    deals: Mapped[list["Deal"]] = relationship(back_populates="group", lazy="noload")