import { AuthConflictError, AuthFailedError, AuthValidationError } from ".";

function hasStatusCode(err: unknown): err is { statusCode: number } {
  return typeof err === "object" && err !== null && "statusCode" in err
    && typeof (err as { statusCode?: unknown }).statusCode === "number";
}

export function toPublicAuthError(err: unknown) {
  if (hasStatusCode(err)) {
    return err;
  }
  if (err instanceof AuthValidationError) {
    return createError({
      statusCode: 400,
      statusMessage: err.message,
    });
  }
  if (err instanceof AuthFailedError) {
    return createError({
      statusCode: 401,
      statusMessage: err.message,
    });
  }
  if (err instanceof AuthConflictError) {
    return createError({
      statusCode: 409,
      statusMessage: err.message,
    });
  }
  return createError(err instanceof Error ? err : {
    statusCode: 500,
    statusMessage: "服务器繁忙，请稍后重试",
  });
}