from __future__ import annotations
from typing import Dict

import folder_paths
from pyisolate import ProxiedSingleton


class FolderPathsProxy(ProxiedSingleton):
    """
    Dynamic proxy for folder_paths.
    Uses __getattr__ for most lookups, with explicit handling for
    mutable collections to ensure efficient by-value transfer.
    """

    def __getattr__(self, name):
        return getattr(folder_paths, name)

    # Return dict snapshots (avoid RPC chatter)
    @property
    def folder_names_and_paths(self) -> Dict:
        return dict(folder_paths.folder_names_and_paths)

    @property
    def extension_mimetypes_cache(self) -> Dict:
        return dict(folder_paths.extension_mimetypes_cache)

    @property
    def filename_list_cache(self) -> Dict:
        return dict(folder_paths.filename_list_cache)