nvim/lua/config/autocmd.lua

-- vim.api.nvim_set_hl(0, 'NormalFloat', { bg = '#282828' })
-- vim.api.nvim_set_hl(0, 'FloatBorder', { bg = 'NONE' }) vim.api.nvim_set_hl(0, 'Pmenu', { bg = 'NONE' })
-- vim.api.nvim_set_hl(0, 'StatusLine', { bg = 'NONE' })
local function augroup(name)
	return vim.api.nvim_create_augroup('neo_' .. name, { clear = true })
end

-- Use 'q' to quit from common plugins
vim.api.nvim_create_autocmd({ 'FileType' }, {
	pattern = { 'qf', 'help', 'man', 'lspinfo', 'spectre_panel', 'lir' },
	callback = function()
		vim.cmd [[
      nnoremap <silent> <buffer> q :close<CR>
      set nobuflisted
    ]]
	end,
})

-- use 2 spaces for cpp
vim.api.nvim_create_autocmd({ 'FileType' }, {
	pattern = { 'cpp', 'cc', 'hpp', 'hh', 'md', 'markdown', 'java' },
	callback = function()
		vim.opt.ts = 4
		vim.opt.sw = 4
		vim.opt.expandtab = true
	end,
})

-- Fixes Autocomment
vim.api.nvim_create_autocmd({ 'BufWinEnter' }, {
	callback = function()
		vim.cmd 'set formatoptions-=cro'
	end,
})

-- Highlight Yanked Text
vim.api.nvim_create_autocmd({ 'TextYankPost' }, {
	callback = function()
		vim.highlight.on_yank { higroup = 'Visual', timeout = 200 }
	end,
})

-- vim.api.nvim_create_augroup('diagnostics', { clear = true })
--
-- vim.api.nvim_create_autocmd({ 'DiagnosticChanged' }, {
-- 	group = 'diagnostics',
-- 	callback = function()
-- 		vim.diagnostic.setloclist { open = false }
-- 	end,
-- })

-- resize splits if window got resized
vim.api.nvim_create_autocmd({ 'VimResized' }, {
	group = augroup 'resize_splits',
	callback = function()
		vim.cmd 'tabdo wincmd ='
	end,
})

-- wrap and check for spell in text filetypes
vim.api.nvim_create_autocmd('FileType', {
	group = augroup 'wrap_spell',
	pattern = { 'gitcommit', 'markdown' },
	callback = function()
		vim.opt_local.wrap = true
		vim.opt_local.spell = true
		vim.opt_local.textwidth = 80
	end,
})
vim.cmd [[
    augroup change_cursor
        au!
        au ExitPre * :set guicursor=a:hor90
    augroup END
]]

function _G.set_terminal_keymaps()
	local opts = { buffer = 0 }
	vim.keymap.set('t', '<esc>', [[<C-\><C-n>]], opts)
	vim.keymap.set('t', '<C-w>', [[<C-\><C-n><C-w>]], opts)
end

-- if you only want these mappings for toggle term use term://*toggleterm#* instead
vim.cmd('autocmd! TermOpen term://* lua set_terminal_keymaps()')