#!/usr/bin/lua

local site = require 'gluon.site_config'
local users = require 'gluon.users'
local util = require 'gluon.util'
local fs = require 'nixio.fs'

local uci = require('simple-uci').cursor()


uci:section('network', 'interface', 'mesh_vpn', {
	ifname = 'mesh-vpn',
	proto = 'gluon_mesh',
	transitive = true,
	fixed_mtu = true,
	macaddr = util.generate_mac(7),
	mtu = site.mesh_vpn.mtu,
})

uci:save('network')


if fs.access('/etc/config/gluon-simple-tc') then
	os.rename('/etc/config/gluon-simple-tc', '/etc/config/simple-tc')
end

if not uci:get('simple-tc', 'mesh_vpn') then
	local config = {
		ifname = 'mesh-vpn',
		enabled = false,
	}


	if site.mesh_vpn.bandwidth_limit then
		if site.mesh_vpn.bandwidth_limit.enabled then
			config.enabled = true
		end

		config.limit_ingress = site.mesh_vpn.bandwidth_limit.ingress
		config.limit_egress = site.mesh_vpn.bandwidth_limit.egress
	end

	uci:section('simple-tc', 'interface', 'mesh_vpn', config)
	uci:save('simple-tc')
end


-- The previously used user and group are removed, we now have a generic group
users.remove_user('gluon-fastd')
users.remove_group('gluon-fastd')

users.add_group('gluon-mesh-vpn', 800)

uci:section('firewall', 'include', 'mesh_vpn_dns', {
	type = 'restore',
	path = '/lib/gluon/mesh-vpn/iptables.rules',
	family = 'ipv4',
})

uci:save('firewall')