-- Automatically create a scratch buffer if Neovim starts with no files
vim.api.nvim_create_autocmd('VimEnter', {
  callback = function()
    -- Only trigger if no file arguments are passed
    if vim.fn.argc() == 0 then
      vim.cmd('enew')
      vim.bo.buftype = 'nofile'
      vim.bo.bufhidden = 'wipe'
      vim.bo.swapfile = false
    end
  end,
})

-- Highlight when yanking (copying) text
vim.api.nvim_create_autocmd('TextYankPost', {
  callback = function()
    vim.highlight.on_yank()
  end,
})

-- Disable comment continuation only when using 'o'/'O', but keep it for <Enter>
vim.api.nvim_create_autocmd('FileType', {
  pattern = '*',
  callback = function()
    vim.opt_local.formatoptions:remove('o')
  end,
})

-- Show cursor line only in active window
vim.api.nvim_create_autocmd({ 'WinEnter', 'InsertLeave' }, {
  callback = function()
    if vim.w.auto_cursorline then
      vim.wo.cursorline = true
      vim.w.auto_cursorline = nil
    end
  end,
})

vim.api.nvim_create_autocmd({ 'WinLeave', 'InsertEnter' }, {
  callback = function()
    if vim.bo.filetype == 'NvimTree' then
      return
    end
    if vim.wo.cursorline then
      vim.w.auto_cursorline = true
      vim.wo.cursorline = false
    end
  end,
})