apollo/services/trackers/aggregate-tracker.js

class AggregateTracker {
  #name = null;
  #trackers = []
  provider = null;

  constructor(name, trackers) {
    this.#name = name;
    this.#trackers = trackers;
  }

  get name() {
    return this.#name;
  }

  get scrobblerNames() {
    return this.#trackers.map(t => t.scrobblerNames)
      .flat()
      .filter((v, i, a) => a.indexOf(v) == i);
  }

  async poll() {
    let media = []
    for (let tracker of this.#trackers)
      media = media.concat(await tracker.poll());

    return media;
  }
}

module.exports = AggregateTracker;