/*
 * Implements a vanadium client that talks to the namespace service and finds all
 * the P2B services that are available.
 * @fileoverview
 */
import { Logger } from 'libs/logs/logger'
import vanadium from 'vanadium'

var log = new Logger('services/p2b-namespace');

/*
 * Finds all the P2B services that are published by querying the namespace.
 * @return {Promise} Promise resolving to an array of names for all published
 * P2B services
 */
export function getAll() {
  return vanadium.init().then((runtime) => {
    var namespace = runtime.namespace();
    var ctx = runtime.getContext().withTimeout(5000);
    ctx.waitUntilDone(function(){});

    var globResult = namespace.glob(ctx, 'google/p2b/*');
    var p2bServices = [];
    globResult.stream.on('data', (p2bServiceName) => {
      p2bServices.push(p2bServiceName.name);
    });

    // wait until all the data arrives then return the collection
    return globResult.then(() => {
      ctx.cancel();
      return p2bServices;
    });
  });
}