feat: change to create a buffer for the prompt

lua/chatgpt_nvim/init.lua

@@ -62,17 +62,36 @@ local function is_directory(path)
   return stat and stat.type == "directory"
 end
 
+-- Replaces the inline input() call with opening a new buffer for prompt input
 function M.run_chatgpt_command()
   local conf = config.load()
   if conf.debug then
     vim.api.nvim_out_write("[chatgpt_nvim:init] Running :ChatGPT command.\n")
   end
-  local user_input = vim.fn.input("Message for O1 Model: ")
+
-  if user_input == "" then
+  -- Create a new scratch buffer for user to type the message
-    print("No input provided.")
+  local bufnr = vim.api.nvim_create_buf(false, true)
+  vim.api.nvim_buf_set_name(bufnr, "ChatGPT_Prompt")
+  vim.api.nvim_buf_set_option(bufnr, 'bufhidden', 'wipe')
+  vim.api.nvim_buf_set_option(bufnr, 'filetype', 'markdown')
+  vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, {
+    "# Enter your prompt below.",
+    "",
+    "Save & close with :wq to finalize your prompt."
+  })
+
+  local function on_write_post()
+    -- Read buffer lines and join them into a single string
+    local lines = vim.api.nvim_buf_get_lines(bufnr, 0, -1, false)
+    -- Skip the first lines that are placeholders, if desired
+    local user_input = table.concat(lines, "\n")
+
+    if user_input == "" or user_input:find("^# Enter your prompt below.") then
+      print("No valid input provided.")
       return
     end
 
+    -- Continue the same logic as originally, just using our new user_input
     local dirs = conf.directories or {"."}
     local project_structure = context.get_project_structure(dirs)
 
@@ -130,6 +149,17 @@ function M.run_chatgpt_command()
 
     copy_to_clipboard(prompt)
     print("Prompt (requesting needed files) copied to clipboard! Paste it into the ChatGPT O1 model.")
+  end
+
+  -- Create an autocmd that triggers once when user saves the buffer (BufWritePost)
+  vim.api.nvim_create_autocmd("BufWritePost", {
+    buffer = bufnr,
+    once = true,
+    callback = on_write_post
+  })
+
+  -- Switch to the newly created buffer
+  vim.cmd("buffer " .. bufnr)
 end
 
 function M.run_chatgpt_paste_command()