from datetime import datetime

from sqlalchemy import ForeignKey, Integer, String
from sqlalchemy.orm import Mapped, mapped_column
from sqlalchemy.sql import func

from app.database import Base


class PushSubscription(Base):
    __tablename__ = "push_subscription"

    id: Mapped[int] = mapped_column(Integer, primary_key=True)
    user_id: Mapped[int | None] = mapped_column(
        ForeignKey("user.id", ondelete="CASCADE"), nullable=True
    )
    endpoint: Mapped[str] = mapped_column(String(512), nullable=False, unique=True)
    p256dh_key: Mapped[str] = mapped_column(String(255), nullable=False)
    auth_key: Mapped[str] = mapped_column(String(255), nullable=False)
    user_agent: Mapped[str | None] = mapped_column(String(255), nullable=True)
    created_at: Mapped[datetime] = mapped_column(server_default=func.now(), nullable=False)