interface ISetConfigMessage {
  setConfig: {
    theme?: string;
    repo?: string;
    term?: string;
    number?: number;
    category?: string;
    reactionsEnabled?: boolean;
    emitMetadata?: boolean;
  };
}

function sendMessage<T>(message: T) {
  const iframe = document.querySelector<HTMLIFrameElement>('iframe.giscus-frame');
  if (!iframe) return;
  iframe.contentWindow.postMessage({ giscus: message }, location.origin);
}

sendMessage({
  setConfig: {
    theme: 'https://giscus.app/themes/custom_example.css',
    reactionsEnabled: false,
  }
} as ISetConfigMessage);