"""Permissions plugin contract — public interface for cross-plugin access."""

from __future__ import annotations

from app.plugins.builtins.permissions.models import Permission


class PermissionsContract:
    """Public contract for the permissions plugin."""

    Permission = Permission


_contract_instance: PermissionsContract | None = None


def get_contract() -> PermissionsContract:
    global _contract_instance
    if _contract_instance is None:
        _contract_instance = PermissionsContract()
    return _contract_instance