--
-- (C) 2019-21 - ntop.org
--
dirs = ntop.getDirs()
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path

require "lua_utils"

local info = ntop.getInfo() 

local json = require ("dkjson")
local page_utils = require("page_utils")
local format_utils = require("format_utils")
local os_utils = require "os_utils"
local host_pools_nedge = require "host_pools_nedge"
local rest_utils = require("rest_utils")

--
-- Read host pools configuration
-- Example: curl -u admin:admin -H "Content-Type: application/json" -d '{"ifid": "1"}' http://localhost:3000/lua/rest/v2/get/pool/config.lua
--
-- NOTE: in case of invalid login, no error is returned but redirected to login
--

local rc = rest_utils.consts.success.ok
local res = {}

local ifid = _GET["ifid"]
local download = _GET["download"] 

if not isAdministratorOrPrintErr() then
   rest_utils.answer(rest_utils.consts.err.not_granted)
   return
end

if isEmptyString(ifid) then
   rest_utils.answer(rest_utils.consts.err.invalid_interface)
   return
end

local res = host_pools_nedge.export()

if isEmptyString(download) then
  rest_utils.answer(rc, res)
else
  sendHTTPContentTypeHeader('application/json', 'attachment; filename="pools_configuration.json"')
  print(json.encode(res, nil))
end