#!/usr/bin/env node

var fs       = require('fs');
var yaml     = require('js-yaml');
var path     = require('path');
var request  = require('request');
var camelize = require('camel-case');
var path     = path.join(__dirname, '..', 'languages.json');

/**
 * Sanitize the languages JSON object.
 *
 * @param  {Object} obj
 * @return {Object}
 */
var sanitizeYaml = function (obj) {
  Object.keys(obj).forEach(function (language) {
    Object.keys(obj[language]).forEach(function (key) {
      var value = obj[language][key];

      delete obj[language][key];
      obj[language][camelize(key)] = value;
    });
  });

  return obj;
};

/**
 * Make a request to the YAML file hosted by GitHub and convert to JSON.
 */
request('https://raw.githubusercontent.com/github/linguist/master/lib/linguist/languages.yml', function (err, res, body) {
  var languages = sanitizeYaml(yaml.safeLoad(body));

  fs.writeFileSync(path, JSON.stringify(languages, null, 2));
});