dot-files/dot_config/nvim/lua/plugins/tree.lua

vim.g.loaded_netrw = 1
vim.g.loaded_netrwPlugin = 1
vim.opt.termguicolors = true

local function handle_closed(window)
  local tab = vim.api.nvim_win_get_tabpage(window)
  local buffer = vim.api.nvim_win_get_buf(window)
  local info = vim.fn.getbufinfo(buffer)[1]

  local function filter_window(w)
    return w ~= window
  end

  local windows = vim.tbl_filter(filter_window, vim.api.nvim_tabpage_list_wins(tab))
  local buffers = vim.tbl_map(vim.api.nvim_win_get_buf, windows)

  if info.name:match('.*NvimTree_%d*$') then
    if not vim.tbl_isempty(buffers) then
      require('nvim-tree.api').tree.close()
    end
    return
  end

  if #buffers ~= 1 then
    return
  end

  local last_info = vim.fn.getbufinfo(buffers[1])[1]
  if last_info.name:match('.*NvimTree_%d*$') then
    vim.schedule(function()
      if #vim.api.nvim_list_wins() == 1 then
        vim.cmd 'quit'
      else
        vim.api.nvim_win_close(windows[1], true)
      end
    end)
  end
end

local function config()
  require('nvim-tree').setup()
  vim.api.nvim_create_autocmd('WinClosed', {
    nested = true,
    callback = function()
      local window = tonumber(vim.fn.expand('<amatch>'))
      handle_closed(window)
    end,
  })
end

return {
  'nvim-tree/nvim-tree.lua',
  config = config,
  keys = {
    { '<leader>nt', ':NvimTreeToggle<CR>', desc = 'toggle nvim tree' }
  },
  dependencies = {
    'nvim-tree/nvim-web-devicons', opts = {}
  },
}