let mediaRecorder: MediaRecorder | null = null;
let videoChunks: Blob[] = [];

// Запись видео
async function startRecording(streamId: string) {
  const stream = await navigator.mediaDevices.getUserMedia({
    video: {
      mandatory: {
        chromeMediaSource: 'tab',
        chromeMediaSourceId: streamId
      }
    } as any,
    audio: false
  });

  mediaRecorder = new MediaRecorder(stream);

  mediaRecorder.ondataavailable = (event) => {
    if (event.data && event.data.size > 0) {
      videoChunks.push(event.data);
      chrome.runtime.sendMessage({
        type: 'VIDEO_CHUNK',
        data: event.data,
        timestamp: Date.now()
      });
    }
  };

  mediaRecorder.start(1000);
}

// Остановка записи
function stopRecording() {
  if (mediaRecorder && mediaRecorder.state !== 'inactive') {
    mediaRecorder.stop();
  }
}

// Получение чанков
function getChunks(): Blob[] {
  return videoChunks;
}

// Обработка сообщений
chrome.runtime.onMessage.addListener((message) => {
  switch (message.type) {
    case 'START_RECORDING':
      startRecording(message.streamId);
      break;
    case 'STOP_RECORDING':
      stopRecording();
      break;
    case 'GET_CHUNKS':
      chrome.runtime.sendMessage({
        type: 'CHUNKS_RESPONSE',
        chunks: getChunks()
      });
      break;
  }
});