from __future__ import annotations

from datetime import datetime, timezone
from enum import Enum

from sqlalchemy import Boolean, DateTime, Enum as SqlEnum, String
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.models.base import Base


class RoleEnum(str, Enum):
    client = "client"
    shop = "shop"


class User(Base):
    __tablename__ = "users"

    id: Mapped[int] = mapped_column(primary_key=True)
    username: Mapped[str] = mapped_column(String(50), unique=True, nullable=False, index=True)
    password_hash: Mapped[str] = mapped_column(String(255), nullable=False)
    role: Mapped[RoleEnum] = mapped_column(
        SqlEnum(RoleEnum, native_enum=False),
        nullable=False,
        default=RoleEnum.client,
    )
    is_active: Mapped[bool] = mapped_column(Boolean, nullable=False, default=True)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        default=lambda: datetime.now(timezone.utc),
        nullable=False,
    )

    orders = relationship("Order", back_populates="user", lazy="selectin")