from __future__ import annotations

from datetime import datetime

from sqlalchemy import DateTime, ForeignKey, Integer, String
from sqlalchemy.orm import Mapped, mapped_column

from admin_app.db.models.base import AdminTimestampedModel


class StaffSession(AdminTimestampedModel):
    __tablename__ = "staff_sessions"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    staff_account_id: Mapped[int] = mapped_column(
        Integer,
        ForeignKey("staff_accounts.id"),
        nullable=False,
        index=True,
    )
    refresh_token_hash: Mapped[str] = mapped_column(
        String(255),
        unique=True,
        index=True,
        nullable=False,
    )
    expires_at: Mapped[datetime] = mapped_column(DateTime, nullable=False)
    last_used_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
    revoked_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
    ip_address: Mapped[str | None] = mapped_column(String(64), nullable=True)
    user_agent: Mapped[str | None] = mapped_column(String(512), nullable=True)