local U = {}
U.map = function(mode, lhs, rhs, opts)
	local options = { noremap = true, silent = true }
	if opts then
		options = vim.tbl_extend("force", options, opts)
	end
	vim.api.nvim_set_keymap(mode, lhs, rhs, options)
end

U.close_buffer = function(force)
	-- Yanked from NvChad, thanks to them. This saves
	-- a lot of pain

	-- This is a modification of a NeoVim plugin from
	-- Author: ojroques - Olivier Roques
	-- Src: https://github.com/ojroques/nvim-bufdel

	-- Options
	local opts = {
		next = "cycle", -- how to retrieve the next buffer
		quit = false, -- exit when last buffer is deleted
		--TODO make this a chadrc flag/option
	}

	-- ----------------
	-- Helper functions
	-- ----------------

	-- Switch to buffer 'buf' on each window from list 'windows'
	local function switch_buffer(windows, buf)
		local cur_win = vim.fn.winnr()
		for _, winid in ipairs(windows) do
			vim.cmd(string.format("%d wincmd w", vim.fn.win_id2win(winid)))
			vim.cmd(string.format("buffer %d", buf))
		end
		vim.cmd(string.format("%d wincmd w", cur_win)) -- return to original window
	end

	-- Select the first buffer with a number greater than given buffer
	local function get_next_buf(buf)
		local next = vim.fn.bufnr("#")
		if opts.next == "alternate" and vim.fn.buflisted(next) == 1 then
			return next
		end
		for i = 0, vim.fn.bufnr("$") - 1 do
			next = (buf + i) % vim.fn.bufnr("$") + 1 -- will loop back to 1
			if vim.fn.buflisted(next) == 1 then
				return next
			end
		end
	end

	-- ----------------
	-- End helper functions
	-- ----------------

	local buf = vim.fn.bufnr()
	if vim.fn.buflisted(buf) == 0 then -- exit if buffer number is invalid
		vim.cmd("close")
		return
	end

	if #vim.fn.getbufinfo({ buflisted = 1 }) < 2 then
		if opts.quit then
			-- exit when there is only one buffer left
			if force then
				vim.cmd("qall!")
			else
				vim.cmd("confirm qall")
			end
			return
		end

		local chad_term, _ = pcall(function()
			return vim.api.nvim_buf_get_var(buf, "term_type")
		end)

		if chad_term then
			-- Must be a window type
			vim.cmd(string.format("setlocal nobl", buf))
			vim.cmd("enew")
			return
		end
		-- don't exit and create a new empty buffer
		vim.cmd("enew")
		vim.cmd("bp")
	end

	local next_buf = get_next_buf(buf)
	local windows = vim.fn.getbufinfo(buf)[1].windows

	-- force deletion of terminal buffers to avoid the prompt
	if force or vim.fn.getbufvar(buf, "&buftype") == "terminal" then
		local chad_term, type = pcall(function()
			return vim.api.nvim_buf_get_var(buf, "term_type")
		end)

		-- TODO this scope is error prone, make resilient
		if chad_term then
			if type == "wind" then
				-- hide from bufferline
				vim.cmd(string.format("%d bufdo setlocal nobl", buf))
				-- swtich to another buff
				-- TODO switch to next bufffer, this works too
				vim.cmd("BufferLineCycleNext")
			else
				local cur_win = vim.fn.winnr()
				-- we can close this window
				vim.cmd(string.format("%d wincmd c", cur_win))
				return
			end
		else
			switch_buffer(windows, next_buf)
			vim.cmd(string.format("bd! %d", buf))
		end
	else
		switch_buffer(windows, next_buf)
		vim.cmd(string.format("silent! confirm bd %d", buf))
	end
	-- revert buffer switches if user has canceled deletion
	if vim.fn.buflisted(buf) == 1 then
		switch_buffer(windows, buf)
	end
end

return U