// open extension page
// copy-paste this code to browser console

(async () => {
  const match = location.href.match(/itemName=([^&]+)/);
  if (!match) {
    console.error('Tidak dapat menemukan itemName di URL.');
    return;
  }

  const [publisher, extensionName] = match[1].split('.');
  const apiUrl = `https://marketplace.visualstudio.com/_apis/public/gallery/extensionquery`;
  const body = {
    filters: [{
      criteria: [{ filterType: 7, value: `${publisher}.${extensionName}` }]
    }],
    flags: 103
  };

  const res = await fetch(apiUrl, {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      'Accept': 'application/json;api-version=3.0-preview.1'
    },
    body: JSON.stringify(body)
  });

  const json = await res.json();
  const extension = json.results[0].extensions[0];
  const version = extension.versions[0].version;

  const vsixAsset = extension.versions[0].files.find(f => f.assetType === 'Microsoft.VisualStudio.Services.VSIXPackage');
  const vsixUrl = vsixAsset.source;

  const vsixRes = await fetch(vsixUrl);
  const blob = await vsixRes.blob();
  const a = document.createElement('a');
  a.href = URL.createObjectURL(blob);
  a.download = `${extensionName}-${version}.vsix`;
  document.body.appendChild(a);
  a.click();
  document.body.removeChild(a);
  URL.revokeObjectURL(a.href);
})();