'use strict';

const test = require('node:test');
const assert = require('node:assert/strict');
const http = require('node:http');
const { settings } = require('../src/settings');
const {
  fetchLiveStreams,
  liveUrlCandidates,
  parseM3u,
  resolveFallbackUrls,
  resetM3uCache,
} = require('../src/xtream-client');

function listen(server) {
  return new Promise((resolve) => server.listen(0, '127.0.0.1', resolve));
}

function close(server) {
  return new Promise((resolve) => server.close(resolve));
}

test('fetches live streams from player_api and resolves get.php fallback URLs', async () => {
  const server = http.createServer((req, res) => {
    if (req.url.startsWith('/player_api.php')) {
      res.setHeader('Content-Type', 'application/json');
      res.end(
        JSON.stringify([
          {
            stream_id: 101,
            name: 'DAZN 01 [A - B | Jupiler Pro League (nl) (2026-11-06 19:25:00)]',
          },
        ])
      );
      return;
    }
    if (req.url.startsWith('/get.php')) {
      res.setHeader('Content-Type', 'application/x-mpegurl');
      res.end(
        [
          '#EXTM3U',
          '#EXTINF:-1 tvg-id="dazn1" tvg-name="DAZN 01",DAZN 01 [A - B | Jupiler Pro League (nl) (2026-11-06 19:25:00)]',
          'http://cdn.example/live/u/p/101.ts',
        ].join('\n')
      );
      return;
    }
    res.statusCode = 404;
    res.end('nope');
  });

  await listen(server);
  const port = server.address().port;
  const previous = { ...settings };
  settings.xtreamUrl = `http://127.0.0.1:${port}`;
  settings.xtreamUsername = 'user';
  settings.xtreamPassword = 'pass';
  resetM3uCache();

  try {
    const streams = await fetchLiveStreams();
    assert.equal(streams.length, 1);
    assert.equal(streams[0].stream_id, 101);

    const urls = liveUrlCandidates(101);
    assert.ok(urls.includes('http://127.0.0.1:' + port + '/live/user/pass/101.ts'));

    const fallbacks = await resolveFallbackUrls(101, 'DAZN 01');
    assert.deepEqual(fallbacks, ['http://cdn.example/live/u/p/101.ts']);
  } finally {
    Object.assign(settings, previous);
    resetM3uCache();
    await close(server);
  }
});

test('parses M3U entries by stream id and tvg-name', () => {
  const index = parseM3u(
    [
      '#EXTM3U',
      '#EXTINF:-1 tvg-id="x" tvg-name="DAZN 01 [A - B | Jupiler Pro League (nl) (2026-11-06 19:25:00)]",display',
      'http://cdn.example/live/u/p/55.m3u8?token=1',
    ].join('\n')
  );
  assert.equal(index.byStreamId.get('55'), 'http://cdn.example/live/u/p/55.m3u8?token=1');
  assert.equal(
    index.byName.get('dazn 01 [a - b | jupiler pro league (nl) (2026-11-06 19:25:00)]'),
    'http://cdn.example/live/u/p/55.m3u8?token=1'
  );
});