from datetime import datetime

from sqlalchemy import DateTime, Float, String, func
from sqlalchemy.orm import Mapped, mapped_column

from app.models.base import Base


class StlCache(Base):
    __tablename__ = "stl_cache"

    id: Mapped[int] = mapped_column(primary_key=True)
    filename: Mapped[str] = mapped_column(String(255), unique=True)
    cube_x: Mapped[float | None] = mapped_column(Float)   # mm
    cube_y: Mapped[float | None] = mapped_column(Float)   # mm
    cube_z: Mapped[float | None] = mapped_column(Float)   # mm
    volume_ccm: Mapped[float | None] = mapped_column(Float)  # cm³
    created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())