function panic(reason)
  print("PANIC: "..reason)
  -- This will trigger a restart, but not immediately
  node.restart()
end

local inter = require('inter')
local mq = require('mq')

function configure_wlan()
  local wlan_ssid = read_cfg("wlan-ssid", false)
  local wlan_password = read_cfg("wlan-password", false)

  if not wlan_ssid or not wlan_password then
    info("Missing SSID and/or password configuration, use 'wlan' to configure")
    wifi.sta.config('', '')
    return
  end

  info("Connecting to SSID: "..wlan_ssid)
  wifi.setmode(wifi.STATION)
  wifi.sta.config(wlan_ssid, wlan_password)
end

local function print_status()
  ip, nm, gw = wifi.sta.getip()
  print("status uptime="..tmr.time().." heap-left="..node.heap().." ip="..tostring(ip).." netmask="..tostring(nm).." gateway="..tostring(gw))
end

function main()
  local timers = {
    status = 0,
    inter = 1,
    mqtt = 2
  }

  configure_wlan(wlan_ssid, wlan_password)

  local mac = wifi.sta.getmac()
  local client_id = "esp8266-"..mac
  mq.init(timers.mqtt, mac, client_id)

  inter.init(on_cmd)

  load_properties()
  info("init done")

  tmr.alarm(timers.status, 10 * 1000, 1, print_status)
end