BeameryHQ/Ditto

'use strict';

const _ = require('lodash');

/**
 * @function getLanguageCode
 * @description Get the language code and normalize as the well the displayName of the language
 *
 * @param {String} source the language display name
 * @returns {String} the langauage ISO code
 */
function getLanguageCode(source) {

    if (!source || typeof(source) !== "string") return null;

    const languages = require('./data/languages.json')

    let languageCode = null;

    _.filter(languages, function(languageObject){
        _.each(_.words(languageObject.name), function(language){
            if (language.toLowerCase() === source.replace(/\s\s+/g,"").trim().toLowerCase()) {
                languageCode = languageObject.code;
                return;
            }
        });
    });
    return languageCode;
}

module.exports = getLanguageCode;