exports.Client = require('./client.js') exports.Tracker = require('./tracker.js') const trackers = new Map() exports.createTracker = (name, key, total) => { const tracker = new exports.Tracker(name, key, total) if (trackers.has(tracker.key)) { const msg = `proggy: duplicate progress id ${JSON.stringify(tracker.key)}` throw new Error(msg) } trackers.set(tracker.key, tracker) tracker.on('done', () => trackers.delete(tracker.key)) return tracker } exports.createClient = (options = {}) => new exports.Client(options)