}
  return String.fromCharCode(...new Uint16Array(bytes.buffer));
}

function decodeMessageFromUrl() {
  const url = new URL(document.location.href);

  if (url.searchParams.has("json")) {
    const encodedMessage = url.searchParams.get("json");

    return fromBinary(encodedMessage);
  }
  return null;
}

// Light switch things
document.addEventListener("DOMContentLoaded", () => {
  document
    .querySelector("#light-switch")
    .addEventListener("click", MPToggleLights);
});

const message = decodeMessageFromUrl();

if (message) {
  // If message preview is enabled, show the message.
  if (MPIsEnabled()) {
    MPShowMessage(message);
  }
}
PK