from datetime import datetime

from sqlalchemy import DateTime, String, Text
from sqlalchemy.orm import Mapped, mapped_column

from app.db.base import Base


class SystemSetting(Base):
    __tablename__ = "system_settings"

    key: Mapped[str] = mapped_column(String(128), primary_key=True)
    value: Mapped[str] = mapped_column(Text)
    description: Mapped[str | None] = mapped_column(String(255), nullable=True)
    updated_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)