import {SlugRule} from 'sanity'

const MAX_LENGTH = 96

export const validateSlug = (Rule: SlugRule) => {
  return Rule.required().custom((value) => {
    const currentSlug = value && value.current
    if (!currentSlug) {
      return true
    }

    if (currentSlug.length >= MAX_LENGTH) {
      return `Must be less than ${MAX_LENGTH} characters`
    }

    return true
  })
}