from datetime import datetime
from typing import Any, Protocol, runtime_checkable
from uuid import UUID


@runtime_checkable
class AuditableProtocol(Protocol):
    pk: Any
    usuario_creacion: Any | None
    fecha_creacion: datetime | None
    usuario_actualizacion: Any | None
    fecha_actualizacion: datetime | None


@runtime_checkable
class EventProtocol(Protocol):
    event_name: str
    payload: dict
    timestamp: str


@runtime_checkable
class TenantProtocol(Protocol):
    """Contract of every tenant-owned model.

    ``tenant_id`` is non-null on tenant-owned rows; a model with a null
    ``tenant_id`` is a global row and does not satisfy this protocol.
    """

    tenant_id: UUID