enbock / Time-Tracker

import {IObserver, IObserverAdapter} from '../../Observer/Observer';

import Manager from '../Manager';

import Translator from '../Translator';

export default class ActiveTranslatorAdapter implements IObserverAdapter<string> {

  protected baseAdapter: IObserverAdapter<string>;

  protected manager: Manager;

  protected activeTranslator: IObserver<Translator>;

  constructor(baseAdapter: IObserverAdapter<string>, manager: Manager, activeTranslator: IObserver<Translator>) {

    this.activeTranslator = activeTranslator;

    this.baseAdapter = baseAdapter;

    this.manager = manager;

  }

  onChange(oldValue: string, newValue: string): void {

    this.manager.getTranslator(newValue).then(

      (translator: Translator): void => {

        this.activeTranslator.value = translator;

        this.baseAdapter.onChange(oldValue, newValue);

      }

    );

  }

}