enbock / Time-Tracker

import Loader from './Loader';

import Translator from './Translator';

import TranslatorFactory from './Translator/Factory';

interface Translators {

  [languageCode: string]: Translator;

}

export default class Manager {

  protected loader: Loader;

  protected translators: Translators;

  protected translatorFactory: TranslatorFactory;

  constructor(loader: Loader, translatorFactory: TranslatorFactory) {

    this.loader = loader;

    this.translatorFactory = translatorFactory;

    this.translators = {};

  }

  async getTranslator(languageCode: string): Promise<Translator> {

    if (this.translators.hasOwnProperty(languageCode)) {

      return this.translators[languageCode];

    }

    const languageData = await this.loader.loadLanguage(languageCode);

    const translator: Translator = this.translatorFactory.createTranslator(languageData);

    this.translators[languageCode] = translator;

    return translator;

  }

}