chrome.runtime.onMessage.addListener(function(request, sender, sendResponse) {
  console.log('收到消息:', request);
  if (request.action === 'checkOnlineStatus') {
    const isDouyin = window.location.hostname.includes('douyin.com');
    sendResponse({isDouyin: isDouyin});
  } else if (request.action === 'checkViewers') {
    const viewersCounts = [];
    const liveRooms = document.querySelectorAll('[data-e2e="user-card"]');
    liveRooms.forEach(room => {
      const viewersElement = room.querySelector('[data-e2e="watch-count"]');
      if (viewersElement) {
        const viewersText = viewersElement.textContent.trim();
        const viewers = parseViewersCount(viewersText);
        const roomTitle = room.querySelector('[data-e2e="video-title"]')?.textContent.trim() || '未知直播间';
        viewersCounts.push({ room: roomTitle, viewers: viewers });
      }
    });
    sendResponse({viewersCounts: viewersCounts});
  } else if (request.action === 'getCurrentRoomId') {
    try {
      const url = window.location.href;
      const match = url.match(/live\.douyin\.com\/([^/?]+)/);
      if (match && match[1]) {
        sendResponse({ roomId: match[1] });
      } else {
        const roomIdElement = document.querySelector('[data-room-id]');
        if (roomIdElement) {
          sendResponse({ roomId: roomIdElement.getAttribute('data-room-id') });
        } else {
          sendResponse({ error: '未找到直播间ID' });
        }
      }
    } catch (error) {
      console.error('获取直播间ID时出错:', error);
      sendResponse({ error: error.message });
    }
    return true; // 保持消息通道开启
  }
  return true; // 保持消息通道开放
});

function parseViewersCount(viewersText) {
  const number = parseFloat(viewersText.replace(/[^0-9.]/g, ''));
  const unit = viewersText.replace(/[0-9.]/g, '').trim();
  switch(unit) {
    case '万':
      return number * 10000;
    case '亿':
      return number * 100000000;
    default:
      return number;
  }
}

console.log('内容脚本已加载');