import uuid
from datetime import datetime

from sqlalchemy import DateTime, ForeignKey, String
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.database import Base


class Session(Base):
    __tablename__ = "sessions"

    user_id: Mapped[uuid.UUID] = mapped_column(
        UUID(as_uuid=True), ForeignKey("users.id", ondelete="CASCADE"), nullable=False, index=True
    )
    refresh_token_hash: Mapped[str] = mapped_column(String(255), nullable=False, index=True)
    device_info: Mapped[str | None] = mapped_column(String(500), nullable=True)
    ip_address: Mapped[str | None] = mapped_column(String(45), nullable=True)
    expires_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False)

    user: Mapped["User"] = relationship(back_populates="sessions")  # noqa: F821