from datetime import datetime, timezone

from sqlalchemy import DateTime, Index, Text
from sqlalchemy.orm import Mapped, mapped_column

from fabledassistant.models import Base


class User(Base):
    __tablename__ = "users"

    id: Mapped[int] = mapped_column(primary_key=True)
    username: Mapped[str] = mapped_column(Text, unique=True, nullable=False)
    email: Mapped[str | None] = mapped_column(Text, nullable=True)
    password_hash: Mapped[str] = mapped_column(Text, nullable=False)
    role: Mapped[str] = mapped_column(Text, nullable=False, default="user")
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), default=lambda: datetime.now(timezone.utc)
    )

    __table_args__ = (
        Index("ix_users_username", "username"),
    )

    def to_dict(self) -> dict:
        return {
            "id": self.id,
            "username": self.username,
            "email": self.email,
            "role": self.role,
            "created_at": self.created_at.isoformat(),
        }