import assert from 'node:assert/strict';
import { test } from 'node:test';
import { mediaFromItem } from '../src/platforms/tiktok.ts';
import { fixture } from './helpers.ts';

test('a video post picks a playable file and carries the referrer the CDN demands', async () => {
  const media = await mediaFromItem(fixture('tiktok/video.json'));
  assert.equal(media.length, 1);
  const [item] = media;
  assert.equal(item?.kind, 'video');
  assert.match(item?.url ?? '', /^https:\/\//);
  // Without this header the CDN answers 403 and the player shows nothing.
  assert.equal(item?.fetchHeaders?.['Referer'], 'https://www.tiktok.com/');
  assert.ok(item?.kind === 'video' && item.poster, 'expected a cover frame');
  assert.ok(item?.width && item.height);
  assert.ok(item?.kind === 'video' && item.durationSec);
});

test('the highest bitrate rendition wins', async () => {
  const media = await mediaFromItem({
    video: {
      playAddr: 'https://cdn/fallback.mp4',
      bitrateInfo: [
        { Bitrate: 500_000, PlayAddr: { UrlList: ['https://cdn/low.mp4'] } },
        { Bitrate: 2_000_000, PlayAddr: { UrlList: ['https://cdn/high.mp4'] } },
      ],
    },
  });
  assert.equal(media[0]?.url, 'https://cdn/high.mp4');
});

test('a photo post yields images rather than an empty video', async () => {
  const media = await mediaFromItem({
    imagePost: {
      images: [
        { imageURL: { UrlList: ['https://cdn/1.jpg'] }, imageWidth: 1080, imageHeight: 1350 },
        { imageURL: { UrlList: ['https://cdn/2.jpg'] }, imageWidth: 1080, imageHeight: 1350 },
      ],
    },
    video: { cover: 'https://cdn/cover.jpg' },
  });
  assert.equal(media.length, 2);
  assert.ok(media.every((m) => m.kind === 'image'));
});