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

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

barcode_template_attribute_link = Table(
    "barcode_template_attribute_links",
    BaseModel.metadata,
    Column("barcode_template_id", ForeignKey("barcode_templates.id")),
    Column("attribute_id", ForeignKey("barcode_template_attributes.id")),
)


class BarcodeTemplateAttribute(BaseModel, IdMixin):
    __tablename__ = "barcode_template_attributes"

    key: Mapped[str] = mapped_column(index=True, comment="Ключ атрибута")
    name: Mapped[str] = mapped_column(index=True, comment="Метка атрибута")


class BarcodeTemplateSize(BaseModel, IdMixin):
    __tablename__ = "barcode_template_sizes"

    name: Mapped[str] = mapped_column(index=True, comment="Название размера")
    width: Mapped[int] = mapped_column(comment="Ширина в мм")
    height: Mapped[int] = mapped_column(comment="Высота в мм")


class BarcodeTemplate(BaseModel, IdMixin, SoftDeleteMixin):
    __tablename__ = "barcode_templates"

    name: Mapped[str] = mapped_column(index=True, comment="Название шаблона")
    attributes: Mapped[list["BarcodeTemplateAttribute"]] = relationship(
        secondary=barcode_template_attribute_link,
        lazy="selectin",
    )

    is_default: Mapped[bool] = mapped_column(default=False, comment="По умолчанию")

    size_id: Mapped[int] = mapped_column(ForeignKey("barcode_template_sizes.id"))
    size: Mapped["BarcodeTemplateSize"] = relationship(lazy="joined")