gluon/package/gluon-mesh-batman-adv-core/files/lib/gluon/announce/neighbours.d/wifi

local batman_adv = require 'gluon.batman_adv'
local iwinfo = require 'iwinfo'

function neighbours(iface)
  local stations = {}
  for k, v in pairs(iface.iw.assoclist(iface.ifname)) do
    stations[k:lower()] = { signal = v.signal
                          , noise = v.noise
                          , inactive = v.inactive
                          }
  end

  if next(stations) then
    return stations
  end
end

function interfaces()
  local interfaces = {}
  for ifname in batman_adv.interfaces('bat0') do
    pcall(function()
      local address = util.readline(io.open('/sys/class/net/' .. ifname .. '/address'))
      local wifitype = iwinfo.type(ifname)
      if wifitype ~= nil then
        interfaces[address] = { ifname = ifname, iw = iwinfo[wifitype] }
      end
    end)
  end

  return interfaces
end

local wifi = {}
for address, iface in pairs(interfaces()) do
  wifi[address] = { [{}] = true, neighbours = neighbours(iface) }
end

if next(wifi) then
  return wifi
end