var ev = data.eventType || 'Unknown';
if (ev === 'Test') {
  result = { version: 'v2', plain: '🧪 Readarr: Connection test successful', msgtype: 'm.notice' };
} else {
  var author = (data.author && data.author.name) || 'Unknown Author';
  var books = data.books || (data.book ? [data.book] : []);
  var bookStr = books.map(function(b){ return b.title || ''; }).filter(Boolean).join(', ');
  var quality = (data.release && data.release.quality) || (data.bookFile && data.bookFile.quality) || '';
  var releaseGroup = (data.release && data.release.releaseGroup) || (data.bookFile && data.bookFile.releaseGroup) || '';
  var client = data.downloadClient || '';
  var upgrade = data.isUpgrade ? ' \u2191upgrade' : '';
  var healthMsg = data.message || '';
  var healthWiki = data.wikiUrl || '';
  var prevVer = data.previousVersion || '';
  var newVer = data.newVersion || '';
  var emojiMap = { 'Grab':'📥','Download':'✅','Rename':'✏️','AuthorAdd':'➕','AuthorDelete':'🗑️','BookAdd':'➕','BookDelete':'🗑️','BookFileDelete':'🗑️','HealthIssue':'⚠️','HealthRestored':'💚','ApplicationUpdate':'🔄' };
  var emoji = emojiMap[ev] || '📚';
  var plain, html;
  if (ev === 'HealthIssue' || ev === 'HealthRestored') {
    plain = emoji + ' Readarr ' + ev + ': ' + healthMsg + (healthWiki ? '\n' + healthWiki : '');
    html = '<b>' + emoji + ' Readarr ' + ev + '</b>: ' + healthMsg + (healthWiki ? '<br><a href="' + healthWiki + '">Wiki</a>' : '');
  } else if (ev === 'ApplicationUpdate') {
    plain = emoji + ' Readarr updated: ' + prevVer + ' \u2192 ' + newVer;
    html = '<b>' + emoji + ' Readarr updated</b>: ' + prevVer + ' \u2192 ' + newVer;
  } else if (ev === 'AuthorAdd' || ev === 'AuthorDelete') {
    plain = emoji + ' Readarr ' + ev + ': ' + author;
    html = '<b>' + emoji + ' Readarr ' + ev + '</b>: ' + author;
  } else {
    var titlePart = bookStr ? bookStr + ' by ' + author : author;
    var qualPart = quality ? ' [' + quality + ']' : '';
    var groupPart = releaseGroup ? ' {' + releaseGroup + '}' : '';
    var clientPart = client ? ' via ' + client : '';
    plain = emoji + ' Readarr ' + ev + ': ' + titlePart + qualPart + groupPart + upgrade + clientPart;
    html = '<b>' + emoji + ' Readarr ' + ev + '</b>: ' + (bookStr ? '<i>' + bookStr + '</i> by ' + author : author) + qualPart + groupPart + upgrade + clientPart;
  }
  result = { version: 'v2', plain: plain, html: html, msgtype: 'm.notice' };
}