// Keep this local so browser bundles do not pull in src/utils.ts and its Node-only side effects.
function isRecord(value: unknown): value is Record<string, unknown> {
  return value !== null && typeof value === "object" && !Array.isArray(value);
}

export function asRecord(value: unknown): Record<string, unknown> {
  return typeof value === "object" && value !== null ? (value as Record<string, unknown>) : {};
}

export function readStringField(
  record: Record<string, unknown> | null | undefined,
  key: string,
): string | undefined {
  const value = record?.[key];
  return typeof value === "string" ? value : undefined;
}

export function asOptionalRecord(value: unknown): Record<string, unknown> | undefined {
  return isRecord(value) ? value : undefined;
}

export function asNullableRecord(value: unknown): Record<string, unknown> | null {
  return isRecord(value) ? value : null;
}

export function asOptionalObjectRecord(value: unknown): Record<string, unknown> | undefined {
  return value && typeof value === "object" ? (value as Record<string, unknown>) : undefined;
}

export function asNullableObjectRecord(value: unknown): Record<string, unknown> | null {
  return value && typeof value === "object" ? (value as Record<string, unknown>) : null;
}