safe-async.ts

// result: https://gist.github.com/yazaldefilimone/b1d3749def942013ee5128161837432e
import { Err, Ok, type Result } from "~/utils/result";

export async function safeAsync<T>(asyncFn: () => Promise<T>): Promise<Result<T, Error>> {
  try {
    const result = await asyncFn();
    return Ok(result);
  } catch (error) {
    return Err(normalizeError(error));
  }
}

export function wrapAsync<F extends (...args: any[]) => Promise<any>>(asyncFn: F) {
  return async (...args: Parameters<F>): Promise<Result<Awaited<ReturnType<F>>, Error>> => {
    try {
      const result = await asyncFn(...args);
      return Ok(result);
    } catch (e: unknown) {
      return Err(normalizeError(e));
    }
  };
}

function normalizeError(error: unknown): Error {
  if (error instanceof Error) return error;
  if (typeof error === "string") return new Error(error);
  return new Error("An unknown error occurred");
}