#!/usr/bin/lua

local sysconfig = require 'gluon.sysconfig'


if sysconfig.primary_mac then
  os.exit(0)
end


local platform = require 'gluon.platform'

local fs = require 'nixio.fs'
local util = require 'luci.util'


local try_files = {
  '/sys/class/net/eth0/address'
}

if not (
  util.contains({'x86', 'brcm2708'}, platform.get_target()) or
  platform.match('ar71xx', 'mikrotik')
) then
  table.insert(try_files, 1, '/sys/class/ieee80211/phy0/macaddress')
end

if platform.match('ar71xx', 'generic', {'tl-wdr3600', 'tl-wdr4300'}) then
  table.insert(try_files, 1, '/sys/class/ieee80211/phy1/macaddress')
elseif platform.match('ramips', 'mt7621', {'dir-860l-b1'}) then
  table.insert(try_files, 1, '/sys/class/ieee80211/phy1/macaddress')
elseif platform.match('ar71xx', 'generic', {'unifi-outdoor-plus', 'carambola2',
                                            'mr600', 'mr600v2',
                                            'mr900', 'mr900v2',
                                            'mr1750', 'mr1750v2',
                                            'om2p', 'om2pv2',
                                            'om2p-hs', 'om2p-hsv2', 'om2p-hsv3',
                                            'om2p-lc',
                                            'om5p', 'om5p-an',
                                            'om5p-ac', 'om5p-acv2'}) then
  table.insert(try_files, 1, '/sys/class/net/eth0/address')
elseif platform.match('ar71xx', 'generic', {'archer-c5', 'archer-c7'}) then
  table.insert(try_files, 1, '/sys/class/net/eth1/address')
end


for _, file in ipairs(try_files) do
  local addr = fs.readfile(file)

  if addr then
    sysconfig.primary_mac = util.trim(addr)
    break
  end
end