Creating a required 1 out of 2 field schema,

[3pleFly]

Hello

I wanna make a schema where at least 1 field is required. I know I can use refine but I think I can avoid it...
I've tried below a strategy but it's lacking. I've accomplished validating either one. But I am lacking a validation for when the user leaves BOTH empty. Any ideas?

The real complication is that the form consider null or empty string to be as EMPTY values. So, that's where I gotta pass these things through a truthy check to make sure there's a value in either one....

Would love some help :)

export const useCommentSchema = () => {
  return z.object({
    comment: z
      .string()
      .min(
        30,
        translate("General.Validations.MinCharacters").replace("X", "30")
      )
      .max(250, translate("General.Validations.MaxExceeded"))
      .regex(CommentBoxWithEnglish, translate("General.Validations.Regex")),
  });
};

export const useMyFileSchema = () => {
  return z.object({ file: useFileSchema(MAX_FILE_SIZE).nullable() });
};

export const useApplicationSchema = () => {
  return useCommentSchema()
    .merge(useMyFileSchema())  ////// This right has to check that both aren't empty. not empty string, not null.
    .or(useCommentSchema()) // Can do either this
    .or(useMyFileSchema()); // Or this
};