I have lua in neovim call sgpt cli. i use vim.ui to get some user input for arguments. on argument is –chat that im not asking user for and wanted a clever solution here like a sort of memory of last one used. but way to specify if changes. any thoughts

To achieve this, you can implement a simple caching mechanism within your Lua script to remember the last --chat argument used. Here’s a basic approach:

1. Cache the Last Argument: Store the last used --chat argument in a temporary file or a global variable within your Lua script.

2. Prompt for Change: Use vim.ui.input to ask the user if they want to change the --chat argument. If they choose to change it, update the cache.

3. Use the Cached Value: If the user doesn’t want to change it, use the cached value for the --chat argument.

Here’s a simple example:

local cache_file = "/tmp/sgpt_last_chat.txt"

-- Function to read the last chat argument from cache
local function read_last_chat()
  local file = io.open(cache_file, "r")
  if file then
    local last_chat = file:read("*a")
    file:close()
    return last_chat
  end
  return nil
end

-- Function to write the chat argument to cache
local function write_last_chat(chat)
  local file = io.open(cache_file, "w")
  file:write(chat)
  file:close()
end

-- Get the last chat argument
local last_chat = read_last_chat()

-- Ask the user if they want to change the chat argument
vim.ui.input({ prompt = "Change chat argument? (y/n): " }, function(input)
  if input == "y" then
    vim.ui.input({ prompt = "Enter new chat argument: " }, function(new_chat)
      if new_chat then
        write_last_chat(new_chat)
        -- Use new_chat as the --chat argument
      end
    end)
  else
    -- Use last_chat as the --chat argument
  end
end)

This script will prompt the user to change the --chat argument and store the new value for future use. Adjust the file path and logic as needed for your specific use case.