I`m looking for a "clean way" to validate if a field of my schema should be required. Usually I know this before accessing the domain layer, but I have ran into a particular scenario.

export const createOfferSchema = {
  body: z
    .object({
      product_id: z.string(),
      cycle_id: z.string(),
      amount: z.coerce.number(),
      price: z.coerce.number(),
      description: z.string().optional(),
      expires_at: z
        .string()
        .regex(/^\d{2}-\d{2}-\d{4}$/, "Formato esperado: DD-MM-YYYY")
        .optional(),
    })
    .refine(notEmpty.validation, notEmpty.warning),
};

I`m currently checking if product PERISHABLE property is true inside the use-case and throwing an error if the expires_at field is not provided, but would prefer to keep the validation only on the controller. Any ideas on how to achieve this directly on the controller?