from __future__ import annotations

from datetime import datetime
from typing import TYPE_CHECKING

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

from core.database import Base

if TYPE_CHECKING:
    from .clinical_note import ClinicalNote


class User(Base):
    __tablename__ = "users"

    id: Mapped[int] = mapped_column(primary_key=True)
    email: Mapped[str] = mapped_column(String(255), unique=True, index=True, nullable=False)
    full_name: Mapped[str] = mapped_column(String(255), nullable=False)
    role: Mapped[str] = mapped_column(String(32), nullable=False, default="nurse")  # nurse | doctor | admin
    hashed_password: Mapped[str] = mapped_column(String(255), nullable=False)
    is_active: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), nullable=False
    )

    notes: Mapped[list["ClinicalNote"]] = relationship(back_populates="author")

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