/*
 * SPDX-FileCopyrightText: 2023 jordi fita mas <jfita@peritasoft.com>
 * SPDX-License-Identifier: AGPL-3.0-only
 */

package uuid

import "dev.tandem.ws/tandem/camper/pkg/hex"

func Valid(s string) bool {
	if len(s) != 36 {
		return false
	}
	// it must be of the form  xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
	if s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-' {
		return false
	}
	for _, x := range [16]int{
		0, 2, 4, 6,
		9, 11,
		14, 16,
		19, 21,
		24, 26, 28, 30, 32, 34} {
		if !hex.Valid(s[x], s[x+1]) {
			return false
		}
	}
	return true
}