-- Control cursorline option
-- This function allows the easy creation of autocommands that configure cursorline for one buffer
-- either based on events or filetypes
local auGroupCursorLine = vim.api.nvim_create_augroup("CursorLine",
	{ clear = true })
local set_cursorline = function(event, value, pattern)
	vim.api.nvim_create_autocmd(event, {
		group = auGroupCursorLine,
		pattern = pattern,
		callback = function()
			vim.opt_local.cursorline = value
		end,
	})
end
set_cursorline("WinLeave", false)
set_cursorline("WinEnter", true)
set_cursorline("FileType", false, "TelescopePrompt")

-- Wrangle formatoptions
-- Format options is local to the buffer
-- This autocommand fixes formatoptions for all buffers at load
local auGroupFormatOptions = vim.api.nvim_create_augroup("FormatOptions",
	{ clear = true })
vim.api.nvim_create_autocmd("FileType", {
	group = auGroupFormatOptions,
	pattern = "*",
	callback = function()
		vim.opt.formatoptions = vim.opt.formatoptions -- take the default
			- "r" -- remove auto commenting
			- "o" -- and for newlines
	end,
})

-- Do some magic for colorcolumn
-- if set as a window option for a file, anything that uses that window
-- at a later date will inherit that even if it doesn't make sense.
local auGroupColorColumn = vim.api.nvim_create_augroup("ColorColumn",
	{clear=true})
vim.api.nvim_create_autocmd( 'BufEnter', {
	group = auGroupColorColumn,
	pattern = "*",
	callback = function (_)
		-- if we set textwidth we show a colorcolumn
		if vim.bo.textwidth > 0 then
			local warn=vim.bo.textwidth - 5
			vim.wo.colorcolumn=string.format("%d,%d", warn, vim.bo.textwidth)
		else
			vim.wo.colorcolumn=""
		end
	end,
	}
)
vim.api.nvim_create_autocmd('BufLeave',{
	group=auGroupColorColumn,
	pattern = '*',
	callback = function ()
		vim.wo.colorcolumn=""
	end
})