Close vim if only non-file windows are open

lua/autocmd.lua

@@ -32,35 +32,33 @@ vim.api.nvim_create_autocmd('FocusLost', {
 --     command = 'silent! wa', -- Save all files when text is changed
 -- })
 
-vim.api.nvim_create_autocmd("User", {
-    pattern = "OilActionsPost",
+vim.api.nvim_create_autocmd('User', {
+    pattern = 'OilActionsPost',
     callback = function(event)
-        if event.data.actions.type == "move" then
+        if event.data.actions.type == 'move' then
             Snacks.rename.on_rename_file(event.data.actions.src_url, event.data.actions.dest_url)
         end
     end,
 })
 
-local fidget_group = vim.api.nvim_create_augroup("CodeCompanionFidgetHooks", { clear = true })
+local fidget_group = vim.api.nvim_create_augroup('CodeCompanionFidgetHooks', { clear = true })
 
-vim.api.nvim_create_autocmd({ "User" }, {
-    pattern = "CodeCompanionRequestStarted",
+vim.api.nvim_create_autocmd({ 'User' }, {
+    pattern = 'CodeCompanionRequestStarted',
     group = fidget_group,
     callback = function(event)
-        local FidgetHelper = require('utils.fidget_helper')
+        local FidgetHelper = require 'utils.fidget_helper'
         -- Pass event instead of request if the callback receives the full event object
         local handle = FidgetHelper:create_progress_handle(event)
         FidgetHelper:store_progress_handle(event.data.id, handle)
     end,
 })
 
-vim.api.nvim_create_autocmd({ "User" }, {
-    pattern = "CodeCompanionRequestFinished",
+vim.api.nvim_create_autocmd({ 'User' }, {
+    pattern = 'CodeCompanionRequestFinished',
     group = fidget_group,
     callback = function(event)
-        local FidgetHelper = require('utils.fidget_helper')
-        -- Pass event instead of request if the callback receives the full event object
-        -- Pass event instead of request if the callback receives the full event object
+        local FidgetHelper = require 'utils.fidget_helper'
         local handle = FidgetHelper:pop_progress_handle(event.data.id)
         if handle then
             FidgetHelper:report_exit_status(handle, event)
@@ -69,11 +67,19 @@ vim.api.nvim_create_autocmd({ "User" }, {
     end,
 })
 
--- augroup modes
---     autocmd!
---     autocmd FocusLost * call feedkeys("\<Esc>") "Go to normal mode when moving away
---     autocmd BufNewFile * call feedkeys("i") "Go to insert mode when starting a new file
--- augroup END
+vim.api.nvim_create_autocmd('BufEnter', {
+    callback = function(event)
+        local windows = vim.api.nvim_list_wins()
+
+        for _, window in ipairs(windows) do
+            local bufnr = vim.api.nvim_win_get_buf(window)
+            if vim.api.nvim_get_option_value('buflisted', { buf = bufnr }) then
+                return
+            end
+        end
+        vim.cmd 'qa'
+    end,
+})
 
 local modes_group = vim.api.nvim_create_augroup('modes', { clear = true })
 vim.api.nvim_create_autocmd('FocusLost', {