michaelchadwick/ember-remember-stuff

import Service from '@ember/service';
import ENV from 'frontend/config/environment';

export default class LocalStorageService extends Service {
  constructor() {
    super(...arguments);

    if (!localStorage.getItem(ENV.APP.LOCAL_STORAGE_KEY)) {
      console.log('initializing LS');
      localStorage.setItem(
        ENV.APP.LOCAL_STORAGE_KEY,
        JSON.stringify({
          debugExpanded: false,
        }),
      );
    }
  }

  get(key) {
    const settings = JSON.parse(localStorage.getItem(ENV.APP.LOCAL_STORAGE_KEY));
    return settings[key];
  }

  set(key, val) {
    const settings = JSON.parse(localStorage.getItem(ENV.APP.LOCAL_STORAGE_KEY));
    settings[key] = val;
    localStorage.setItem(ENV.APP.LOCAL_STORAGE_KEY, JSON.stringify(settings));
  }
}