open-nomad/ui/app/services/watch-list.js

import { computed } from '@ember/object';
import { readOnly } from '@ember/object/computed';
import { copy } from 'ember-copy';
import Service from '@ember/service';

let list = {};

export default Service.extend({
  _list: computed(() => copy(list, true)),

  list: readOnly('_list'),

  init() {
    this._super(...arguments);
    list = {};
  },

  getIndexFor(url) {
    return list[url] || 1;
  },

  setIndexFor(url, value) {
    list[url] = +value;
  },
});