from datetime import datetime

from sqlmodel import SQLModel, Field


class PasskeyCredential(SQLModel, table=True):
    id: int | None = Field(default=None, primary_key=True)
    credential_id: str = Field(index=True, unique=True)
    public_key: str
    sign_count: int = Field(default=0)
    transports: str | None = Field(default=None)  # JSON-encoded list
    user_id: int = Field(foreign_key="user.id", index=True)
    created_at: datetime = Field(default_factory=datetime.utcnow)