"""后台用户：id(uuid)、username、password_hash、role、is_active、created_at。"""
import uuid
from datetime import datetime

from sqlalchemy import String, Boolean, DateTime
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.orm import Mapped, mapped_column

from app.models.base import Base


class User(Base):
    __tablename__ = "users"

    id: Mapped[uuid.UUID] = mapped_column(
        UUID(as_uuid=True), primary_key=True, default=uuid.uuid4
    )
    username: Mapped[str] = mapped_column(String(64), unique=True, nullable=False, index=True)
    password_hash: Mapped[str] = mapped_column(String(256), nullable=False)
    role: Mapped[str] = mapped_column(String(32), nullable=False, default="admin")
    is_active: Mapped[bool] = mapped_column(Boolean, nullable=False, default=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=datetime.utcnow)