import uuid
from datetime import datetime, timezone

from sqlalchemy import DateTime, String
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.database import Base


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


class User(Base):
    __tablename__ = "users"

    id: Mapped[uuid.UUID] = mapped_column(primary_key=True, default=uuid.uuid4)
    email: Mapped[str] = mapped_column(String(255), unique=True, nullable=False)
    hashed_password: Mapped[str] = mapped_column(String(255), nullable=False)
    full_name: Mapped[str] = mapped_column(String(255), nullable=False)
    phone: Mapped[str | None] = mapped_column(String(50))
    role: Mapped[str] = mapped_column(String(20), nullable=False, default="member")
    # 'member' | 'organizer' | 'admin'
    status: Mapped[str] = mapped_column(String(20), nullable=False, default="pending")
    # 'pending' | 'approved' | 'rejected'
    expo_push_token: Mapped[str | None] = mapped_column(String(512))
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now)
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), default=_now, onupdate=_now
    )

    refresh_tokens: Mapped[list["RefreshToken"]] = relationship(
        back_populates="user", cascade="all, delete-orphan"
    )
    registrations: Mapped[list["Registration"]] = relationship(
        back_populates="user", cascade="all, delete-orphan"
    )
    notification_logs: Mapped[list["NotificationLog"]] = relationship(
        back_populates="user", cascade="all, delete-orphan"
    )