javascript:(function(){
var d=document,
    b=d.body,
    v=d.createElement('div'),
    baseUrl=location.protocol+'//'+location.hostname;

v.id='adsViewer';
v.style.cssText='position:fixed;top:20px;right:20px;z-index:9999;background:white;padding:20px;border:2px solid #2196F3;border-radius:8px;width:450px;max-height:80vh;overflow-y:auto;box-shadow:0 4px 20px rgba(0,0,0,0.2);font-family:Arial,sans-serif';

v.innerHTML=[
  '<style>',
  '#adsViewer h3{margin:0 0 15px 0;color:#1976D2}',
  '#adsViewer .close{position:absolute;top:10px;right:10px;cursor:pointer;font-size:20px;color:#666}',
  '#adsViewer .close:hover{color:#000}',
  '#adsViewer .loading{color:#666;text-align:center}',
  '#adsViewer .error{color:#d32f2f;background:#ffebee;padding:10px;border-radius:4px}',
  '#adsViewer ul{list-style:none;padding:0;margin:0}',
  '#adsViewer li{background:#f5f5f5;margin:8px 0;padding:10px;border-radius:4px;font-size:13px}',
  '#adsViewer .pub-id{font-weight:bold;color:#333}',
  '#adsViewer .pub-name{color:#4CAF50;margin-left:5px}',
  '#adsViewer .not-found{color:#ff9800;font-style:italic}',
  '#adsViewer .stats{background:#e3f2fd;padding:10px;border-radius:4px;margin:10px 0}',
  '</style>',
  '<span class="close" onclick="this.parentElement.remove()">✕</span>',
  '<h3>📊 Google ads.txt Analysis</h3>',
  '<div class="loading">Loading ads.txt...</div>'
].join('');

b.appendChild(v);

function setContent(html){
  var loading=v.querySelector('.loading');
  if(loading) loading.remove();
  var div=d.createElement('div');
  div.innerHTML=html;
  v.appendChild(div);
}

function tryProxies(url){
  var proxies=[
    'https://corsproxy.io/?'+encodeURIComponent(url),
    'https://api.codetabs.com/v1/proxy?quest='+encodeURIComponent(url),
    'https://proxy.cors.sh/'+url
  ];

  function tryNext(index){
    if(index>=proxies.length){
      return Promise.reject(new Error('All proxies failed'));
    }

    return fetch(proxies[index])
      .then(function(r){
        if(!r.ok) throw new Error('HTTP '+r.status);
        return r.json();
      })
      .catch(function(){
        console.log('Proxy '+(index+1)+' failed, trying next...');
        return tryNext(index+1);
      });
  }

  return tryNext(0);
}

fetch(baseUrl+'/ads.txt')
  .then(function(r){
    if(!r.ok) throw new Error('ads.txt not found');
    return r.text();
  })
  .then(function(text){
    var pubIds=[];
    var lines=text.split('\n');

    lines.forEach(function(line){
      var match=line.match(/google\.com,\s*(pub-\d+)/i);
      if(match && match[1] && pubIds.indexOf(match[1])===-1){
        pubIds.push(match[1]);
      }
    });

    if(pubIds.length===0){
      setContent('<div class="error">No Google publisher IDs found in ads.txt</div>');
      return;
    }

    setContent('<div class="stats">Found '+pubIds.length+' Google publisher ID(s). Fetching details...</div>');

    tryProxies('https://storage.googleapis.com/adx-rtb-dictionaries/sellers.json')
      .then(function(data){
        var html='<ul>';
        var verified=0;

        pubIds.forEach(function(pubId){
          var seller=null;
          if(data && data.sellers){
            seller=data.sellers.find(function(s){
              return s.seller_id===pubId;
            });
          }

          if(seller){
            verified++;
            html+='<li><span class="pub-id">'+pubId+'</span><span class="pub-name">✓ '+seller.name+'</span></li>';
          }else{
            html+='<li><span class="pub-id">'+pubId+'</span><span class="not-found"> ⚠ Not found in Google database</span></li>';
          }
        });

        html+='</ul>';
        html='<div class="stats">✅ Verified: '+verified+' / '+pubIds.length+'</div>'+html;

        setContent(html);
      })
      .catch(function(err){
        console.error('Proxy error:',err);
        var html='<div class="stats">⚠️ Could not fetch seller names (proxy error)</div><ul>';

        pubIds.forEach(function(pubId,i){
          html+='<li><span class="pub-id">'+pubId+'</span> <em>(ID #'+(i+1)+')</em></li>';
        });

        html+='</ul><p style="font-size:12px;color:#666;margin-top:15px">Tip: Try again later or verify manually at storage.googleapis.com/adx-rtb-dictionaries/sellers.json</p>';

        setContent(html);
      });
  })
  .catch(function(err){
    setContent('<div class="error">Error: '+err.message+'</div>');
  });
})();