/**
 * Copy text to clipboard with a non-secure-context fallback.
 * Returns true if a copy strategy likely succeeded.
 */
export async function copyText(text: string): Promise<boolean> {
  if (typeof navigator !== 'undefined' && navigator.clipboard?.writeText) {
    try {
      await navigator.clipboard.writeText(text);
      return true;
    } catch {
      // Fall through to legacy fallback.
    }
  }

  if (typeof document === 'undefined') return false;

  try {
    const textarea = document.createElement('textarea');
    textarea.value = text;
    textarea.style.position = 'fixed';
    textarea.style.opacity = '0';
    document.body.appendChild(textarea);
    textarea.select();
    const copied = document.execCommand('copy');
    document.body.removeChild(textarea);
    return copied;
  } catch {
    return false;
  }
}