decky-loader/frontend/src/updater.ts

import { sleep } from 'decky-frontend-lib';

export enum Branches {
  Release,
  Prerelease,
  Nightly,
}

export interface DeckyUpdater {
  updateProgress: (val: number) => void;
  finish: () => void;
}

export async function callUpdaterMethod(methodName: string, args = {}) {
  const response = await fetch(`http://127.0.0.1:1337/updater/${methodName}`, {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
    },
    body: JSON.stringify(args),
  });

  return response.json();
}

export async function finishUpdate() {
  callUpdaterMethod('do_restart');
  await sleep(3000);
  location.reload();
}