from datetime import datetime

from sqlalchemy import BigInteger, DateTime, ForeignKey, String, Text, func
from sqlalchemy.orm import Mapped, mapped_column

from app.db.base import Base


class SchemeGroupRecord(Base):
    __tablename__ = "scheme_groups"

    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
    group_record_id: Mapped[str] = mapped_column(String(32), unique=True, index=True, nullable=False)

    scheme_id: Mapped[str] = mapped_column(
        String(32),
        ForeignKey("schemes.scheme_id", ondelete="RESTRICT"),
        nullable=False,
        index=True,
    )

    scheme_version_id: Mapped[str] = mapped_column(
        String(32),
        ForeignKey("scheme_versions.scheme_version_id", ondelete="RESTRICT"),
        nullable=False,
        index=True,
    )

    element_id: Mapped[str | None] = mapped_column(String(512), nullable=True)
    group_id: Mapped[str | None] = mapped_column(String(255), nullable=True)
    name: Mapped[str] = mapped_column(String(512), nullable=False)
    classes_raw: Mapped[str | None] = mapped_column(Text, nullable=True)

    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        nullable=False,
        server_default=func.now(),
    )