Class UIProgress

src/splash/index.js:79–116

let toSend = 0; // Progress state to send for ModuleUpdater (0 = downloading, 1 = installing)
class UIProgress { // Generic class to track updating and sent states to splash
  constructor(st) {
    this.st = st;

    this.reset();
  }

  reset() {
    Object.assign(this, {
      progress: new Map(),
      done: new Set(),
      total: new Set()
    });
  }

  record(id, state, current, outOf) {
    this.total.add(id);

    if (current) this.progress.set(id, [ current, outOf ?? 100 ]);
    if (state === 'Complete') this.done.add(id);

    this.send();
  }

  send() {
    if ((toSend === -1 && this.progress.size > 0 && this.progress.size > this.done.size) || toSend === this.st) {
      const progress = Math.min(100, [...this.progress.values()].reduce((a, x) => a + x[0], 0) / [...this.progress.values()].reduce((a, x) => a + x[1], 0) * 100); // Clamp progress to 0-100

      sendState(this.st ? 'installing' : 'downloading', {
        current: this.done.size + 1,
        total: this.total.size,
        progress
      });

      return true;
    }
  }
}

const initNew = async (inst) => {
  toSend = -1;