from __future__ import annotations

from datetime import datetime

from sqlalchemy import Boolean, DateTime, Enum as SAEnum, Integer, String
from sqlalchemy.orm import Mapped, mapped_column

from admin_app.db.models.base import AdminTimestampedModel
from shared.contracts import StaffRole

# Modelo da conta administrativa
# Ele representa o usuário interno do painel

def _staff_role_values(enum_cls) -> list[str]:
    return [role.value for role in enum_cls]


class StaffAccount(AdminTimestampedModel):
    __tablename__ = "staff_accounts"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    email: Mapped[str] = mapped_column(String(255), unique=True, index=True, nullable=False)
    display_name: Mapped[str] = mapped_column(String(150), nullable=False)
    password_hash: Mapped[str] = mapped_column(String(255), nullable=False)
    role: Mapped[StaffRole] = mapped_column(
        SAEnum(
            StaffRole,
            native_enum=False,
            values_callable=_staff_role_values,
            length=32,
        ),
        nullable=False,
        default=StaffRole.VIEWER,
    )
    is_active: Mapped[bool] = mapped_column(Boolean, nullable=False, default=True)
    last_login_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)