vim.api.nvim_create_autocmd("PackChanged", {
	group = vim.api.nvim_create_augroup("luasnip-update", { clear = true }),
	callback = function(ev)
		local name, kind = ev.data.spec.name, ev.data.kind
		if name == "luasnip" and (kind == "install" or kind == "update") then
			vim.system({ "make install_jsregexp" }, { cwd = ev.data.path }):wait()
			print("luasnip make done.")
		end
	end,
})

vim.pack.add({ { src = "https://github.com/L3MON4D3/LuaSnip", version = vim.version.range("^2.0.0") } })
local ok, ls = pcall(require, "luasnip")

if ok then
	vim.keymap.set({ "i" }, "<C-K>", function()
		ls.expand()
	end, { silent = true })
	vim.keymap.set({ "i", "s" }, "<C-L>", function(fallback)
		if ls.locally_jumpable() then
			ls.jump(1)
		else
			local key = vim.api.nvim_replace_termcodes("<C-L>", true, false, true)
			vim.api.nvim_feedkeys(key, "n", false)
		end
	end, { silent = true })
	vim.keymap.set({ "i", "s" }, "<C-J>", function()
		if ls.locally_jumpable() then
			ls.jump(-1)
		else
			local key = vim.api.nvim_replace_termcodes("<C-J>", true, false, true)
			vim.api.nvim_feedkeys(key, "n", false)
		end
	end, { silent = true })

	vim.keymap.set({ "i", "s" }, "<C-E>", function()
		if ls.choice_active() then
			ls.change_choice(1)
		else
			local key = vim.api.nvim_replace_termcodes("<C-E>", true, false, true)
			vim.api.nvim_feedkeys(key, "n", false)
		end
	end, { silent = true })

	require("luasnip.loaders.from_lua").load({ paths = vim.fs.joinpath(vim.fn.stdpath("config"), "lua", "snippets") })
else
	print("plugin luasnip missing")
end