/**
 * Hash a phone number for analytics purposes
 * Uses a consistent hashing algorithm to create a deterministic hash
 */
export function hashPhoneNumber(phoneNumber: string): string {
  let hash = 0;
  for (let i = 0; i < phoneNumber.length; i++) {
    hash = ((hash << 5) - hash) + phoneNumber.charCodeAt(i);
    hash |= 0;
  }
  return `hash_${Math.abs(hash)}`;
}