from sqlalchemy import String, Text, ForeignKey
from sqlalchemy.orm import Mapped, mapped_column, declared_attr

from .base import Base, bidirectional_relationship
from .status import StatusForeignKey
from .user import Versioned


class SapNamePool(StatusForeignKey, Versioned, Base):
    """SAP Printer Name Pool"""

    code: Mapped[str] = mapped_column(String(12), primary_key=True, sort_order=-1000)
    description: Mapped[str] = mapped_column(String(256))
    notes: Mapped[str | None] = mapped_column(Text)


class SapNamePoolForeignKey:
    """Foreign Key Mixin for :py:class:`SapNamePool`"""

    sap_name_pool_id: Mapped[str] = mapped_column(ForeignKey("sap_name_pool.id"))

    @declared_attr
    def sap_name_pool(cls) -> Mapped["SapNamePool"]:
        return bidirectional_relationship(cls, SapNamePool)