"""Library resource file ORM model."""

from __future__ import annotations

from sqlalchemy import Enum, ForeignKey, Integer, String
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.domain.enums import LibraryFileRole
from app.infra.db.base import Base, TimestampMixin


class LibraryResourceFileORM(TimestampMixin, Base):
    """Persisted uploaded file metadata for a library resource."""

    __tablename__ = "library_resource_files"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    resource_id: Mapped[int] = mapped_column(
        ForeignKey("library_resources.id"),
        nullable=False,
        index=True,
    )
    file_role: Mapped[LibraryFileRole] = mapped_column(
        Enum(LibraryFileRole, native_enum=False),
        nullable=False,
        index=True,
    )
    storage_key: Mapped[str] = mapped_column(String(500), nullable=False)
    public_url: Mapped[str] = mapped_column(String(500), nullable=False)
    bucket: Mapped[str] = mapped_column(String(255), nullable=False)
    mime_type: Mapped[str] = mapped_column(String(255), nullable=False)
    size_bytes: Mapped[int] = mapped_column(Integer, nullable=False)
    sort_order: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    width: Mapped[int | None] = mapped_column(Integer, nullable=True)
    height: Mapped[int | None] = mapped_column(Integer, nullable=True)

    resource = relationship("LibraryResourceORM", back_populates="files")