clipboard.ts

export async function copyText(text: string): Promise<boolean> {
  try {
    if (navigator.clipboard && typeof navigator.clipboard.writeText === "function") {
      await navigator.clipboard.writeText(text);
      return true;
    }
  } catch {
    // fall through to legacy path
  }

  try {
    const textarea = document.createElement("textarea");
    textarea.value = text;
    textarea.setAttribute("readonly", "");
    textarea.style.position = "absolute";
    textarea.style.left = "-9999px";
    document.body.appendChild(textarea);
    textarea.select();
    const ok = document.execCommand("copy");
    document.body.removeChild(textarea);
    return ok;
  } catch {
    return false;
  }
}