package platform

import "regexp"

var slugPattern = regexp.MustCompile(`^[a-z0-9]+(-[a-z0-9]+)*$`)

var uuidSlugPattern = regexp.MustCompile(`^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$`)

// Slugs remain stable across renames unless explicitly changed by an authorized edit.
func validSlug(slug *string) bool {
	return slug == nil || (len(*slug) <= 100 && slugPattern.MatchString(*slug) && !uuidSlugPattern.MatchString(*slug))
}