feat: add the :ChatGPTCurrentBuffer command

lua/chatgpt_nvim/init.lua

@@ -83,7 +83,7 @@ end
 local function handle_step_by_step_if_needed(prompt, estimate_fn)
   local conf = config.load()
   local token_count = estimate_fn(prompt)
-  -- If step-by-step is disabled or token count is within limit, return original prompt
+  -- If step-by-step is disabled or token count is within limit, return the original prompt
   if not conf.enable_step_by_step or token_count <= (conf.token_limit or 8000) then
     return { prompt }
   end
@@ -91,10 +91,11 @@ local function handle_step_by_step_if_needed(prompt, estimate_fn)
   -- If we exceed the token limit, create a single message prompting the user to split tasks
   local step_prompt = [[
     It appears this request might exceed the model's token limit if done all at once.
-    Please break down the tasks into smaller steps and handle them one by one. 
+    Please break down the tasks into smaller steps and handle them one by one.
     At each step, we'll provide relevant files or context if needed.
     Thank you!
   ]]
+
   return { step_prompt }
 end
 
@@ -220,7 +221,7 @@ local function partial_accept(changes)
     once = true,
     callback = function()
       on_write()
-      vim.cmd("bd! " .. bufnr)  -- auto-close buffer
+      vim.cmd("bd! " .. bufnr)
     end
   })
 
@@ -348,13 +349,10 @@ function M.run_chatgpt_command()
       local estimate_fn = get_estimate_fn()
       local chunks = handle_step_by_step_if_needed(prompt, estimate_fn)
 
-      -- We either get the original prompt or a single special prompt
       copy_to_clipboard(chunks[1])
       if #chunks == 1 then
         vim.api.nvim_out_write("Prompt copied to clipboard! Paste into ChatGPT.\n")
       else
-        -- In this revised approach, we no longer generate multiple buffers. 
-        -- We simply rely on the single step-by-step prompt in chunks[1].
         vim.api.nvim_out_write("Step-by-step prompt copied to clipboard!\n")
       end
 
@@ -416,7 +414,6 @@ function M.run_chatgpt_paste_command()
           vim.api.nvim_err_writeln("Preview not closed in time. Aborting.")
           return
         end
-      end
 
       local final_files = data.files
       if conf.partial_acceptance then
@@ -488,10 +485,9 @@ function M.run_chatgpt_paste_command()
       local token_count = estimate_fn(prompt)
       ui.debug_log("Returning requested files. Token count: " .. token_count)
 
-      -- We simply check if step-by-step is enabled, then provide a short note if needed
       if token_count > (conf.token_limit or 8000) and conf.enable_step_by_step then
         local step_message = [[
-          It appears this requested data is quite large. Please lets split the task into smaller steps
+          It appears this requested data is quite large. Please split the task into smaller steps
           and continue step by step.
           Which files would you need for the first step?
         ]]
@@ -511,4 +507,74 @@ function M.run_chatgpt_paste_command()
   end
 end
 
+----------------------------------------------------------------------------
+-- run_chatgpt_current_buffer_command
+----------------------------------------------------------------------------
+function M.run_chatgpt_current_buffer_command()
+  local conf = config.load()
+  ui.debug_log("Running :ChatGPTCurrentBuffer command.")
+
+  -- Get the content of the current buffer as user instructions
+  local lines = vim.api.nvim_buf_get_lines(0, 0, -1, false)
+  local user_input = table.concat(lines, "\n")
+
+  -- Possibly let user select directories if interactive_file_selection is true
+  local dirs = conf.directories or {"."}
+  if conf.interactive_file_selection then
+    dirs = ui.pick_directories(dirs)
+    if #dirs == 0 then
+      dirs = conf.directories
+    end
+  end
+
+  local project_structure = context.get_project_structure(dirs)
+  local initial_files = conf.initial_files or {}
+  local included_sections = {}
+
+  for _, item in ipairs(initial_files) do
+    local root = vim.fn.getcwd()
+    local full_path = root .. "/" .. item
+    if is_directory(full_path) then
+      local dir_files = context.get_project_files({item})
+      for _, f in ipairs(dir_files) do
+        local path = root .. "/" .. f
+        local data = read_file(path)
+        if data then
+          table.insert(included_sections, "\nFile: `" .. f .. "`\n```\n" .. data .. "\n```\n")
+        end
+      end
+    else
+      local data = read_file(full_path)
+      if data then
+        table.insert(included_sections, "\nFile: `" .. item .. "`\n```\n" .. data .. "\n```\n")
+      end
+    end
+  end
+
+  local initial_sections = {
+    "### Basic Prompt Instructions:\n",
+    conf.initial_prompt .. "\n\n\n",
+    "### User Instructions:\n",
+    user_input .. "\n\n\n",
+    "### Context/Data:\n",
+    "Project name: " .. (conf.project_name or "") .. "\n",
+    "Project Structure:\n",
+    project_structure,
+    table.concat(included_sections, "\n")
+  }
+
+  local prompt = table.concat(initial_sections, "\n")
+  store_prompt_for_reference(prompt)
+
+  local estimate_fn = get_estimate_fn()
+  local chunks = handle_step_by_step_if_needed(prompt, estimate_fn)
+
+  copy_to_clipboard(chunks[1])
+  if #chunks == 1 then
+    vim.api.nvim_out_write("Prompt (from current buffer) copied to clipboard! Paste into ChatGPT.\n")
+  else
+    vim.api.nvim_out_write("Step-by-step prompt (from current buffer) copied to clipboard!\n")
+  end
+end
+
 return M