export function getLiveModeFromClientKey(clientKey: string): boolean {
  try {
    // Split the JWT into header, payload, and signature parts
    const parts = clientKey.split('.');
    if (parts.length !== 3) {
      throw new Error('Invalid JWT token format');
    }
    // The payload is the second part
    const payload = parts[1];

    // Convert from base64url to base64 by replacing URL-specific characters.
    const base64 = payload!.replace(/-/g, '+').replace(/_/g, '/');

    // Decode the base64 string. This approach accounts for special characters.
    const jsonPayload = decodeURIComponent(
      atob(base64)
        .split('')
        .map((c) => '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2))
        .join('')
    );
    const parsedPayload = JSON.parse(jsonPayload);

    // Return the live_mode value, ensuring it's a boolean.
    return Boolean(parsedPayload.live_mode);
  } catch (err) {
    console.error('Error decoding JWT token:', err);
    // Fallback to a safe default mode (e.g., test mode).
    return false;
  }
}