"""ORM models for users and refresh tokens."""

import datetime as dt
import uuid

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

from app.infrastructure.db.base import Base
from app.infrastructure.db.models.mixins import TimestampMixin, UUIDPrimaryKeyMixin


class UserModel(UUIDPrimaryKeyMixin, TimestampMixin, Base):
    __tablename__ = "users"

    username: Mapped[str] = mapped_column(String(64), unique=True, index=True, nullable=False)
    password_hash: Mapped[str] = mapped_column(String(255), nullable=False)
    # Admin is a single flag in Phase 1 — no role system (plan §3.5).
    is_superuser: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
    is_active: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
    # Recoverable Subsonic app-password, Fernet-encrypted at rest. NULL until the
    # user generates one. Never the argon2 login password — see core.security.
    subsonic_password_enc: Mapped[str | None] = mapped_column(String(255), nullable=True)


class RefreshTokenModel(UUIDPrimaryKeyMixin, Base):
    """A persisted, revocable refresh token (offline-first sessions).

    Stores only a *hash* of the token, never the raw JWT. Rotated on every
    refresh (old jti revoked, new row added); logout revokes the current jti.
    """

    __tablename__ = "refresh_tokens"

    user_id: Mapped[uuid.UUID] = mapped_column(
        ForeignKey("users.id", ondelete="CASCADE"),
        index=True,
        nullable=False,
    )
    jti: Mapped[uuid.UUID] = mapped_column(unique=True, index=True, nullable=False)
    token_hash: Mapped[str] = mapped_column(String(64), nullable=False)
    expires_at: Mapped[dt.datetime] = mapped_column(DateTime(timezone=True), nullable=False)
    revoked_at: Mapped[dt.datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
    created_at: Mapped[dt.datetime] = mapped_column(
        DateTime(timezone=True),
        default=lambda: dt.datetime.now(dt.UTC),
        nullable=False,
    )
