compile-translations.mjs

/// <reference types="node" />

import path from 'path';
import fs from 'fs';
import chalk from 'chalk';

/**
 *
 * @param {string} startDir
 * @param {RegExp} regexFilter
 * @param {function} callback
 */
function findTranslations(startDir, regexFilter, callback) {
  console.log(
    chalk.blue('- Finding translation files in directory:'),
    startDir
  );

  if (!fs.existsSync(startDir)) {
    console.log(chalk.red('- Directory does not exist:'), startDir);
    return;
  }

  const files = fs.readdirSync(startDir);
  for (var i = 0; i < files.length; i++) {
    var filename = path.join(startDir, files[i]);
    var stat = fs.lstatSync(filename);

    if (stat.isDirectory()) {
      findTranslations(filename, regexFilter, callback);
    } else if (regexFilter.test(filename)) {
      callback(filename);
    }
  }
}

/**
 *
 * @param {string} filePath
 */
function appendTranslationFile(filePath) {
  console.log(chalk.green('- Translation file found:'), chalk.yellow(filePath));

  const translationFile = JSON.parse(fs.readFileSync(filePath));
  const language = filePath.split('/').pop().replace('.json', '');

  const translationsFolder = 'public/translations';
  if (!fs.existsSync(translationsFolder)) {
    fs.mkdirSync(translationsFolder, { recursive: true });
  }

  const resultTranslationFilePath = `${translationsFolder}/${language}.json`;
  if (!fs.existsSync(resultTranslationFilePath)) {
    fs.writeFileSync(resultTranslationFilePath, JSON.stringify({}), {
      flag: 'w',
    });
  }

  const resultTranslationFile = JSON.parse(
    fs.readFileSync(resultTranslationFilePath)
  );

  fs.writeFileSync(
    resultTranslationFilePath,
    JSON.stringify({
      ...resultTranslationFile,
      ...translationFile,
    })
  );
}

['modules', 'ui'].forEach(dir =>
  findTranslations(dir, /\.json$/, appendTranslationFile)
);