import type { RuntimeMessage } from "../shared/types";

const worker = new Worker(chrome.runtime.getURL("inference.js"), { type: "module" });

chrome.runtime.onMessage.addListener((message: RuntimeMessage, _sender, sendResponse) => {
  if (message.type !== "OFFSCREEN_INFER") return false;
  const listener = (event: MessageEvent<{ results?: unknown; error?: string }>) => {
    worker.removeEventListener("message", listener);
    if (event.data.error) sendResponse({ error: event.data.error });
    else sendResponse({ results: event.data.results });
  };
  worker.addEventListener("message", listener);
  worker.postMessage({ requests: message.requests });
  return true;
});