#!/usr/bin/lua

local uci = require('simple-uci').cursor()
local ip = require "luci.ip" -- luci-lib-ip

local manman = 'https://manman.graz.funkfeuer.at'

-- NOTE: these will have mesh_ appended for static-ip
local mappings = {
  wifi = 'radio0',
  tunnel = 'vpn'
}

if uci:get_bool('gluon', 'manman_sync', 'enabled') then
  if not uci:get('gluon', 'manman_sync', 'location_id') then
    print('E: manman location_id missing')
    return 2
  end

  -- check manman location, abort if not reachable

  location = getLocation()
  print('Syncing with location ' .. location['name'])

  local device

  if #location['devices'] > 1 then
    print('E: multiple devices, not impl yet')
    -- TODO: iterate devices, check if any with matching hostname, then use that
    return 2
  else
    device = location['devices'][0]
  end

  if device == nil then
    print('E: unable to find matching device')
    return 2
  end

  print('Syncing with device ' .. device['name'])

  -- TODO: compare device

  -- try to fetch data
  -- check if anything changed since last time
  -- if yes, apply changes and do gluon-reload


  for index, net in ipairs(device['networks']) do
    net_name = net['name']
    net_mapped = 'mesh_' .. (mappings[net_name] or net_name)

    cidr = ip.new(net['ip'], net['netmask']):string()

    print('Syncing ' .. net_name .. ' as ' .. net_mapped .. ' to ' .. cidr)
    uci:set('gluon-static-ip', net_mapped, 'ip4', cidr)
  end

  -- TODO: exec gluon-reload
else
  print('manman-sync not enabled, skipping')
end