import { useRef } from 'react';
console.log('[offscreen] loaded');

const events = [];

chrome.runtime.onMessage.addListener((msg) => {
  if (msg.type === 'SAVE_EVENT') {
    console.log('[offscreen] rrweb event', msg.event);
    events.push(msg.event);
    // 这里你可以存 IndexedDB / memory / file
  }

  if (msg.type === 'SAVE_EVENTS') {
    console.log('[offscreen] SAVE_EVENTS received');
    console.log('[offscreen] total events:', events.length);
    console.log('[offscreen] events:', JSON.stringify(events));
    // const blob = new Blob([JSON.stringify(events)], {
    //   type: 'application/json',
    // });
    // reader.onload = () => {
    //   chrome.runtime.sendMessage({
    //     type: 'DOWNLOAD',
    //     dataUrl: reader.result,
    //   });
    // };
    // reader.readAsDataURL(blob);
  }
});