/**
 * Generate a QR code data URL from text
 * qrcode imported lazily to avoid canvas crash at module load
 * @param text - Text to encode in QR code
 * @returns Promise resolving to data URL
 */
export async function generateQRCode(text: string): Promise<string> {
  try {
    const { default: QRCode } = await import('qrcode');
    const dataUrl = await QRCode.toDataURL(text, {
      width: 300,
      margin: 2,
      color: {
        dark: '#000000',
        light: '#FFFFFF',
      },
      errorCorrectionLevel: 'M',
    });
    return dataUrl;
  } catch (err) {
    console.error('[QR] Failed to generate QR code:', err);
    throw new Error('Failed to generate QR code');
  }
}