app/src/lib/ts/truncate.worker.ts


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import type { TruncateRequest, TruncateResponse } from '../types/truncate-worker';

onmessage = async (message: MessageEvent<TruncateRequest>) => {
  const file = message.data.file;
  const buffer = await file.arrayBuffer();
  const truncated = buffer.slice(0, message.data.size);

  postMessage({ file: truncated } as TruncateResponse);
};