SurfSense/surfsense_backend/app/agents/new_chat/filesystem_backends.py

38 lines
1.2 KiB
Python

"""Filesystem backend resolver for cloud and desktop-local modes."""
from __future__ import annotations
from collections.abc import Callable
from functools import lru_cache
from deepagents.backends.state import StateBackend
from langgraph.prebuilt.tool_node import ToolRuntime
from app.agents.new_chat.filesystem_selection import FilesystemMode, FilesystemSelection
from app.agents.new_chat.middleware.local_folder_backend import LocalFolderBackend
@lru_cache(maxsize=64)
def _cached_local_backend(root_path: str) -> LocalFolderBackend:
return LocalFolderBackend(root_path)
def build_backend_resolver(
selection: FilesystemSelection,
) -> Callable[[ToolRuntime], StateBackend | LocalFolderBackend]:
"""Create deepagents backend resolver for the selected filesystem mode."""
if (
selection.mode == FilesystemMode.DESKTOP_LOCAL_FOLDER
and selection.local_root_path is not None
):
def _resolve_local(_runtime: ToolRuntime) -> LocalFolderBackend:
return _cached_local_backend(selection.local_root_path or "")
return _resolve_local
def _resolve_cloud(runtime: ToolRuntime) -> StateBackend:
return StateBackend(runtime)
return _resolve_cloud