#!/usr/bin/lua

local uci = require('luci.model.uci').cursor()
local json =  require 'luci.json'
local site_code = require('gluon.site_config').site_code
local tools = require 'gluon.site_generate'
local util = require 'luci.util'

function add_var_to_table(table, var)
  if type(var) == "table" and type(table) == "table" then
    for name, value in pairs(var) do
      if table[name] and type(value) == "table" then
        table[name] = add_var_to_table(table[name], value)
      else
        table[name]=value
      end
    end
  end
  return table
end

local default = tools.get_config('/lib/gluon/site-select/default.json')
local groups = tools.get_config('/lib/gluon/site-select/groups.json')
local sites = tools.get_config('/lib/gluon/site-select/sites.json')
local currentsite = uci:get("currentsite", "current", "name")

if site_code ~= currentsite then
  local configured = false
  for _, site in pairs(sites) do
    if site.site_code == currentsite then
      if site.site_select and site.site_select.group and groups and groups[site.site_select.group] then
        default = add_var_to_table(default, groups[site.site_select.group])
      end
      default = add_var_to_table(default, site)

      local file = '/lib/gluon/site.conf'
      local f = io.open(file, "w")
      f:write(util.serialize_data(default))
      f:close()

      configured = true
      break
    end
  end

  if configured == false then
    tools.force_site_code(site_code)
  end
end