export function toJson(obj: any, spacing: boolean = false): string {
  return JSON.stringify(obj, jsonReplacer, spacing ? 2 : undefined);
}

export function jsonReplacer(key: string, value: any): any {
  if (typeof value === 'bigint') {
    return value.toString();
  }
  if (value instanceof Date) {
    return value.toISOString();
  }
  return value;
}

export function safeToJson(v: any): string {
  try {
    return typeof v === 'string' ? v : toJson(v);
  } catch {
    return '[unserializable]';
  }
}