const assert = require('assert');
const fetch = require('node-fetch');

const infoHash = '(m.%5bO%83i%85S(3j%c1%26%3a%e0*z%60%d5';
(async () => {
  if (!process.env.ENDPOINT) {
    throw new Error('Endpoint must be defined.');
  }
  console.log(`testing ${process.env.ENDPOINT} with infoHash '${infoHash}'`);

  const res = await fetch(
    `${process.env.ENDPOINT}/fetch?info_hash=${infoHash}&json=1`,
  );
  assert.deepEqual(res.status, 200, 'expected response to be ok');

  const data = await res.json();
  assert.deepEqual(
    typeof data,
    'object',
    'expected response to be an array (is not an object)',
  );
  assert.ok(
    data instanceof Array,
    'expected response to be an array (is not an object)',
  );
  assert.ok(data.length > 0, 'expected popular torrent to have peers');
  data.forEach((peer) => {
    assert.deepEqual(
      typeof peer,
      'string',
      'expected every response entry to be a string',
    );
    assert.match(
      peer,
      /[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\:[0-9]{1,5}/,
      'expected every response entry to resemble ip:port',
    );
  });
})().then(
  () => {
    console.log('ok!');
    process.exit(0);
  },
  (e) => {
    console.log('error!');
    console.log(e);
    process.exit(1);
  },
);