from typing import TYPE_CHECKING

from sqlalchemy import ForeignKey
from sqlalchemy.orm import Mapped, mapped_column, relationship

from models.base import BaseModel
from models.mixins import PriceMixin

if TYPE_CHECKING:
    from models import Deal
    from modules.fulfillment_base.models import Service


class DealService(BaseModel, PriceMixin):
    __tablename__ = "fulfillment_base_deal_services"

    deal_id: Mapped[int] = mapped_column(ForeignKey("deals.id"), primary_key=True)
    deal: Mapped["Deal"] = relationship(backref="deal_services")

    service_id: Mapped[int] = mapped_column(
        ForeignKey("fulfillment_base_services.id"), primary_key=True
    )
    service: Mapped["Service"] = relationship()

    quantity: Mapped[int] = mapped_column(default=1)
    is_fixed_price: Mapped[bool] = mapped_column(
        default=False, server_default="0", comment="Фиксированная цена"
    )