import { Either, type IEither } from "@emprespresso/pengueno";

export const validateIdentifier = (token: string) => {
  return /^[a-zA-Z0-9_\-:. \/]+$/.test(token) && !token.includes("..");
};

// ensure {@param obj} is a Record<string, string> with stuff that won't
// have the potential for shell injection, just to be super safe.
type InvalidEntry<K, T> = [K, T];
export const validateExecutionEntries = <
  T,
  K extends symbol | number | string = symbol | number | string,
>(
  obj: Record<K, T>,
): IEither<Array<InvalidEntry<K, T>>, Record<string, string>> => {
  const invalidEntries = <Array<InvalidEntry<K, T>>>(
    Object.entries(obj).filter(
      (e) => !e.every((x) => typeof x === "string" && validateIdentifier(x)),
    )
  );
  if (invalidEntries.length > 0) return Either.left(invalidEntries);
  return Either.right(<Record<string, string>>obj);
};