"""用户模型。

Phase 1 仅 owner + member 两级,后续扩展。
"""
from __future__ import annotations

import enum
from datetime import datetime

from sqlalchemy import Boolean, DateTime, Enum, String, func
from sqlalchemy.orm import Mapped, mapped_column

from app.database import Base


class UserRole(str, enum.Enum):
    OWNER = "owner"
    MEMBER = "member"


class User(Base):
    __tablename__ = "users"

    id: Mapped[int] = mapped_column(primary_key=True)
    username: Mapped[str] = mapped_column(String(64), unique=True, index=True, nullable=False)
    email: Mapped[str | None] = mapped_column(String(255), unique=True, index=True)
    password_hash: Mapped[str] = mapped_column(String(255), nullable=False)
    role: Mapped[UserRole] = mapped_column(
        Enum(
            UserRole,
            name="user_role",
            values_callable=lambda x: [e.value for e in x],
        ),
        default=UserRole.MEMBER,
        nullable=False,
    )
    is_active: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
    display_name: Mapped[str | None] = mapped_column(String(128))
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), nullable=False
    )
    last_login_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))

    def __repr__(self) -> str:
        return f"<User id={self.id} username={self.username} role={self.role.value}>"