from datetime import datetime

from sqlalchemy import DateTime, ForeignKey, String, func
from sqlalchemy.orm import Mapped, mapped_column

from app.db.base import Base


class PasswordResetToken(Base):
    __tablename__ = "password_reset_tokens"

    id: Mapped[int] = mapped_column(primary_key=True, index=True)
    user_id: Mapped[int] = mapped_column(
        ForeignKey("users.id", ondelete="CASCADE"),
        nullable=False,
        index=True,
    )
    token_hash: Mapped[str] = mapped_column(
        String(64),
        unique=True,
        nullable=False,
        index=True,
    )
    expires_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        nullable=False,
        index=True,
    )
    used_at: Mapped[datetime | None] = mapped_column(
        DateTime(timezone=True),
        nullable=True,
    )
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        server_default=func.now(),
        nullable=False,
    )