from datetime import datetime
from sqlalchemy import String, Boolean, DateTime, func
from sqlalchemy.orm import Mapped, mapped_column, relationship
from app.core.database import Base


class User(Base):
    __tablename__ = "users"

    id: Mapped[int] = mapped_column(primary_key=True, index=True)
    username: Mapped[str] = mapped_column(String(50), unique=True, index=True, nullable=False)
    email: Mapped[str] = mapped_column(String(100), unique=True, index=True, nullable=False)
    hashed_password: Mapped[str] = mapped_column(String(128), nullable=False)
    is_active: Mapped[bool] = mapped_column(Boolean, default=True)
    is_admin: Mapped[bool] = mapped_column(Boolean, default=False)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
    )

    watchlist: Mapped[list["Watchlist"]] = relationship(back_populates="user", lazy="select")
    alerts: Mapped[list["Alert"]] = relationship(back_populates="user", lazy="select")