-- Autocmds are automatically loaded on the VeryLazy event
-- Default autocmds that are always set: https://github.com/LazyVim/LazyVim/blob/main/lua/lazyvim/config/autocmds.lua
-- Add any additional autocmds here
-- local function augroup(name)
--   return vim.api.nvim_create_augroup("lazyvim_" .. name, { clear = true })
-- end
-- vim.api.nvim_create_autocmd("TextYankPost", {
-- 	group = augroup("toggle_relative_group"),
-- 	callback = function(_)
-- 		vim.cmd("set norelativenumber")
-- 	end,
-- })

-- nvim-tree is also there in modified buffers so this function filter it out
local modifiedBufs = function(bufs)
  local t = 0
  for k, v in pairs(bufs) do
    if v.name:match("NvimTree_") == nil then
      t = t + 1
    end
  end
  return t
end

vim.api.nvim_create_autocmd("BufEnter", {
  nested = true,
  callback = function()
    if #vim.api.nvim_list_wins() == 1 and
        vim.api.nvim_buf_get_name(0):match("NvimTree_") ~= nil and
        modifiedBufs(vim.fn.getbufinfo({ bufmodified = 1 })) == 0 then
      vim.cmd "quit"
    end
  end
})

local function open_nvim_tree(data)

  -- buffer is a directory
  local directory = vim.fn.isdirectory(data.file) == 1

  if not directory then
    return
  end

  -- change to the directory
  if directory then
    vim.cmd.cd(data.file)
  end

  -- open the tree
  require("nvim-tree.api").tree.open()
end

vim.api.nvim_create_autocmd({ "VimEnter" }, { callback = open_nvim_tree })