eliashaeussler/cache-warmup

<?php

declare(strict_types=1);

/*
 * This file is part of the Composer package "eliashaeussler/cache-warmup".
 *
 * Copyright (C) 2020-2024 Elias Häußler <elias@haeussler.dev>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

namespace EliasHaeussler\CacheWarmup\Time;

/**
 * TimeTracker.
 *
 * @author Elias Häußler <elias@haeussler.dev>
 * @license GPL-3.0-or-later
 */
final class TimeTracker
{
    private ?Duration $lastDuration = null;

    /**
     * @template T
     *
     * @param callable(): T $function
     *
     * @return T
     */
    public function track(callable $function): mixed
    {
        $this->lastDuration = null;

        $start = $this->now();

        try {
            $result = $function();
        } finally {
            $end = $this->now();

            $this->lastDuration = new Duration($end - $start);
        }

        return $result;
    }

    public function getLastDuration(): ?Duration
    {
        return $this->lastDuration;
    }

    private function now(): float
    {
        return microtime(true) * 1000;
    }
}