browser.runtime.onMessage.addListener(function(request, sender, sendResponse) {
  const { action, data } = request;
  if (action === "transcript") {
    browser.tabs.query({ active: true, currentWindow: true })
      .then((tabs) => {
        const tabId = tabs[0].id;
        browser.tabs.sendMessage(tabId, { action: "show_transcript", data });
      })
      .catch((error) => {
        console.error("Error retrieving active tab:", error);
      });
  }
  if (action === "updateSelectedLanguage") {
    const detectedLanguage = data;
    if (detectedLanguage) {
      browser.runtime.sendMessage({ action: "updateSelectedLanguage", detectedLanguage });
      browser.storage.local.set({ selectedLanguage: detectedLanguage });
    }
  }
});