type SpanLike = {
  setAttribute: (key: string, value: unknown) => void;
};

type SpanOptions = {
  tracer?: string;
  attributes?: Record<string, unknown>;
};

export function setSpanAttributes(
  span: SpanLike | null | undefined,
  attributes: Record<string, unknown>,
): void {
  for (const [key, value] of Object.entries(attributes)) {
    span?.setAttribute?.(key, value);
  }
}

export async function withActiveSpan<T>(
  _name: string,
  options: SpanOptions,
  fn: (span: SpanLike) => Promise<T>,
): Promise<T> {
  const attributes = new Map<string, unknown>(
    Object.entries(options.attributes ?? {}),
  );
  const span: SpanLike = {
    setAttribute(key, value) {
      attributes.set(key, value);
    },
  };
  return await fn(span);
}