'use strict';

const assert = require('node:assert/strict');
const fs = require('fs');
const os = require('os');
const path = require('path');
const { discoverMedia } = require('../mcp/src/features/media/media-discovery');
const { processMedia, replaceMediaUrls } = require('../mcp/src/features/media/media-pipeline');
const { manifestPath } = require('../mcp/src/features/media/media-manifest');

async function main() {
  const image = `data:image/png;base64,${Buffer.from('png-fixture').toString('base64')}`;
  const video = `data:video/mp4;base64,${Buffer.from('video-fixture').toString('base64')}`;
  const input = { id: 'note-1', coverUrl: image, media: { videoUrl: video }, text: 'unchanged' };
  const discovered = discoverMedia(input);
  assert.equal(discovered.length, 2);
  const outputDir = fs.mkdtempSync(path.join(os.tmpdir(), 'voc-media-smoke-'));
  fs.mkdirSync(path.dirname(manifestPath(outputDir)), { recursive: true });
  fs.writeFileSync(manifestPath(outputDir), JSON.stringify({
    items: [{
      mediaId: 'legacy-cloud-item',
      sourceUrl: 'https://example.invalid/legacy.jpg',
      localPath: '',
      cloudUrl: 'https://storage.example.invalid/legacy.jpg',
      uploadStatus: 'uploaded'
    }]
  }));
  let uploadCalls = 0;
  const result = await processMedia(input, {
    outputDir,
    usageTraceId: 'usage_media_smoke',
    platform: 'xiaohongshu',
    storage: { upload: async () => { uploadCalls += 1; } }
  });
  assert.equal(result.items.filter(item => item.cacheStatus === 'cached').length, 2);
  assert.equal(result.items.filter(item => item.uploadStatus === 'disabled_local_only').length, 3);
  assert.equal(uploadCalls, 0, 'local-only media pipeline must not upload to Storage');
  assert(fs.existsSync(result.manifestFile));
  const savedManifest = JSON.parse(fs.readFileSync(result.manifestFile, 'utf8'));
  const legacyItem = savedManifest.items.find(item => item.mediaId === 'legacy-cloud-item');
  assert.equal(legacyItem.cloudUrl, null, 'legacy cloud URLs must be removed from the manifest');
  assert.equal(legacyItem.uploadStatus, 'disabled_local_only');
  assert.equal(legacyItem.effectiveUrl, '');
  const replaced = replaceMediaUrls(input, result.replacements);
  assert.match(replaced.coverUrl, /^assets\/xiaohongshu\/note-1\//);
  assert.match(replaced.media.videoUrl, /^assets\/xiaohongshu\/(?:note-1|evidence)\//);
  assert.equal(result.items.some(item => item.cloudUrl), false);
  console.log('media pipeline smoke passed');
}

main().catch(error => { console.error(error); process.exitCode = 1; });