import { BitField } from '@node-dlc/common';
import * as crypto from '@node-dlc/crypto';

import { InitFeatureFlags } from '../lib/flags/InitFeatureFlags';
import { Peer } from '../lib/Peer';
import { PeerServer } from '../lib/PeerServer';
import { createFakeLogger } from './_test-utils';

const chainHash = Buffer.alloc(32, 0xff);

const serverSecret = Buffer.alloc(32, 1);
const serverPubKey = crypto.getPublicKey(serverSecret, true);

const clientSecret = Buffer.alloc(32, 2);
const clientPubKey = crypto.getPublicKey(clientSecret, true);

const localFeatures = new BitField<InitFeatureFlags>();

function createRemotePeer() {
  localFeatures.set(InitFeatureFlags.optionDataLossProtectRequired);
  localFeatures.set(InitFeatureFlags.initialRoutingSyncOptional);
  return new Peer(clientSecret, localFeatures, [chainHash], createFakeLogger());
}

function createServer() {
  const ls = Buffer.alloc(32, 1);
  const logger = createFakeLogger();
  return new PeerServer(
    '127.0.0.1',
    10000,
    ls,
    localFeatures,
    [chainHash],
    logger,
  );
}

describe('PeerServer', () => {
  let server: PeerServer;
  let client: Peer;

  after(() => {
    client.disconnect();
    server.shutdown();
  });

  it('emits a peer when connected', (done) => {
    server = createServer();
    client = createRemotePeer();

    server.on('peer', () => {
      done();
    });

    server.on('listening', () => {
      client.connect(serverPubKey, '127.0.0.1', 10000);
    });

    server.listen();
  });
});