<?php

/*
 * The MIT License
 *
 * Copyright (c) 2025 "YooMoney", NBСO LLC
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

namespace YooKassa\Helpers;

class UUID
{
    /**
     * @return string
     * @throws \Exception
     */
    public static function v4()
    {
        $hexData  = bin2hex(Random::bytes(16));
        $parts    = str_split($hexData, 4);
        $parts[3] = '4' . substr($parts[3], 1);
        $parts[4] = '8' . substr($parts[4], 1);

        return vsprintf(
            '%s%s-%s-%s-%s-%s%s%s',
            $parts
        );
    }
}
