#!/usr/bin/env node
/**
 * Copyright 2013-2017  Zaid Abdulla
 *
 * This file is part of GenieACS.
 *
 * GenieACS is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * GenieACS is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with GenieACS.  If not, see <http://www.gnu.org/licenses/>.
 */
"use strict";

const fs = require("fs");
const path = require("path");

const outputFilename = path.resolve(`data_model_${process.argv[2]}.json`);
process.chdir(path.resolve(path.dirname(fs.realpathSync(__filename)), ".."));

const db = require("../lib/db");

const dataModel = {};


function recursive(object, path) {
  if (!path)
    path = "";

  for (let key in object) {
    if (key[0] === "_" || !object[key])
      continue;

    let isObject = object[key]["_object"];
    let isValue = "_value" in object[key];

    if ((isObject && isValue) || (!isObject && !isValue))
      throw new Error("Unexpected object");

    if (isValue) {
      let value = object[key]["_value"];
      if (typeof value === "boolean")
        value = +value;

      let values = [object[key]["_writable"] || false, value.toString()];
      if (object[key]["_type"])
        values.push(object[key]["_type"]);

      dataModel[`${path}${key}`] = values;
    }

    if (isObject) {
      let values = [object[key]["_writable"] || false];
      dataModel[`${path}${key}.`] = values;
      recursive(object[key], `${path}${key}.`);
    }
  }
}


db.connect(function(err) {
  if (err)
    throw err;

  return db.devicesCollection.findOne({
    _id: process.argv[2]
  }, {}, function(err, device) {
    if (err)
      throw err;

    if (!device)
      throw new Error("Device not found");

    recursive(device);

    fs.writeFile(outputFilename, JSON.stringify(dataModel, null, 2), function() {
      if (err)
        throw err;

      console.log(`${outputFilename} saved`);
      process.exit(0);
    });
  });
});