export async function copyText(text: string) {
  if (!text) throw new Error('没有可复制的内容');
  if (navigator.clipboard?.writeText) {
    try {
      await navigator.clipboard.writeText(text);
      return;
    } catch {
      // HTTP deployments and restrictive browser policies may reject Clipboard API.
    }
  }

  const textarea = document.createElement('textarea');
  textarea.value = text;
  textarea.setAttribute('readonly', '');
  textarea.style.position = 'fixed';
  textarea.style.left = '-9999px';
  document.body.appendChild(textarea);
  textarea.select();
  textarea.setSelectionRange(0, textarea.value.length);
  const copied = document.execCommand('copy');
  textarea.remove();
  if (!copied) throw new Error('浏览器未允许写入剪贴板，请手工选择参数复制');
}