import { readFile } from "node:fs/promises";

export function isNotFound(error: unknown): boolean {
  return typeof error === "object" && error !== null && "code" in error && (error as { code?: string }).code === "ENOENT";
}

export async function readJsonIfExists<T>(path: string): Promise<T | undefined> {
  try {
    return JSON.parse(await readFile(path, "utf8")) as T;
  } catch (error) {
    if (isNotFound(error)) return undefined;
    throw error;
  }
}