from __future__ import annotations

import uuid
from datetime import datetime, timezone

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


class Base(DeclarativeBase):
    pass


def _now():
    return datetime.now(timezone.utc)


class User(Base):
    __tablename__ = "users"

    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    email: Mapped[str] = mapped_column(String(320), unique=True, index=True, nullable=False)
    full_name: Mapped[str | None] = mapped_column(String(200), nullable=True)
    password_hash: Mapped[str] = mapped_column(String(255), nullable=False)
    is_active: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
    is_admin: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now, nullable=False)