How to append a md link [[]] in the new refactored note to the origin note ? tried here but is not working

[barcell1]

tried with chatgpt but keep receiving errors

local function refactor_with_backlink()
  -- Save the original note's name
  local origin_note = vim.fn.expand("%:t:r") -- current file name without extension

  -- Call Obsidian's Extract Note command
  vim.cmd("ObsidianExtractNote")

  -- Delay to ensure ObsidianExtractNote completes before continuing
  vim.defer_fn(function()
    -- Switch to the new note (should be the most recent entry in the buffer list)
    local new_note = vim.fn.expand("%:t:r") -- update this to get the latest buffer

    -- Edit the new note and add the backlink to the origin note
    vim.cmd("edit " .. new_note)  -- Opens the new note
    vim.fn.append(0, "[[" .. origin_note .. "]]") -- Insert backlink at the top
  end, 300)  -- Increased delay to ensure `ObsidianExtractNote` finishes
end

-- Map function to a keybind (visual mode)
vim.api.nvim_set_keymap("v", "rf", ":lua refactor_with_backlink()", { noremap = true, silent = true })