generate-translations.js

const fs = require('fs');
var xmlParser = require('xml2js').parseString;
const startPath = process.argv[2];
const translate = require('@k3rn31p4nic/google-translate-api');
var categories = [];

function handleCategory(index, callback) {
    if (index > categories.length) {
        return;
    }
    var category = categories[index];
    var displayName = category['display-name'];
    var parent = category.parent && category.parent.toString();

    if (displayName && parent !== 'root' && displayName[0]._) {
        var catID = category.$['category-id'].toString();
        displayName = displayName[0]._.toString();
        translate(displayName, { to: 'en' }).then(translationDE => {
            translate(displayName, { to: 'de' }).then(translationEN => {
                var toWrite = `
                    <category category-id="${catID}">
                        <display-name xml:lang="de"><![CDATA[${translationDE.text.trim()}]]></display-name>
                        <display-name xml:lang="en"><![CDATA[${translationEN.text.trim()}]]></display-name>
                    </category>
                `;

                fs.appendFileSync('target/storefront2.xml', toWrite, (err) => { console.error(err); });
                handleCategory(index + 1, () => {});
                console.info(index.toString() + '/' + categories.length + ' ' + catID);

                callback();
            });
        });
    } else {
        handleCategory(index + 1, () => {});
        callback();
    }
}
function getCategories() {
    let sourcefile = startPath + '/storefront-catalog.xml';

    if (fs.existsSync(sourcefile)) {
        let xml = fs.readFileSync(sourcefile);
        xmlParser(xml, function (err, result) {
            categories = result.catalog.category;
        });
    }
}
fs.writeFileSync('target/storefront2.xml', '<?xml version="1.0" encoding="UTF-8"?><catalog xmlns="http://www.demandware.com/xml/impex/catalog/2006-10-31" catalog-id="holger-test">', (err) => { console.error(err); });
getCategories();
handleCategory(0, () => {
    fs.appendFileSync('target/storefront2.xml', '</catalog>', (err) => { console.error(err); });
});