Reservation example

$bucket = new TokenBucket($this->id, $this->maxBurst, $this->rate);
            }

            $now = microtime(true);
            $availableTokens = $bucket->getAvailableTokens($now);

            if ($availableTokens >= max(1, $tokens)) {
                // tokens are now available, update bucket                 $bucket->setTokens($availableTokens - $tokens);
                $bucket->setTimer($now);

                $reservation = new Reservation($now, new RateLimit($bucket->getAvailableTokens($now), \DateTimeImmutable::createFromFormat('U', floor($now)), true, $this->maxBurst));
            } else {
                $remainingTokens = $tokens - $availableTokens;
                $waitDuration = $this->rate->calculateTimeForTokens($remainingTokens);

                if (null !== $maxTime && $waitDuration > $maxTime) {
                    // process needs to wait longer than set interval                     $rateLimit = new RateLimit($availableTokens, \DateTimeImmutable::createFromFormat('U', floor($now + $waitDuration)), false, $this->maxBurst);

                    throw new MaxWaitDurationExceededException(sprintf('The rate limiter wait time ("%d" seconds) is longer than the provided maximum time ("%d" seconds).', $waitDuration, $maxTime), $rateLimit);
                }

                

final class NoLimiter implements LimiterInterface
{
    public function reserve(int $tokens = 1, float $maxTime = null): Reservation
    {
        return new Reservation(microtime(true), new RateLimit(\PHP_INT_MAX, new \DateTimeImmutable(), true, \PHP_INT_MAX));
    }

    public function consume(int $tokens = 1): RateLimit
    {
        return new RateLimit(\PHP_INT_MAX, new \DateTimeImmutable(), true, \PHP_INT_MAX);
    }

    public function reset(): void
    {
    }
}

$window = $this->storage->fetch($this->id);
            if (!$window instanceof Window) {
                $window = new Window($this->id, $this->interval, $this->limit);
            }

            $now = microtime(true);
            $availableTokens = $window->getAvailableTokens($now);

            if ($availableTokens >= max(1, $tokens)) {
                $window->add($tokens, $now);

                $reservation = new Reservation($now, new RateLimit($window->getAvailableTokens($now), \DateTimeImmutable::createFromFormat('U', floor($now)), true, $this->limit));
            } else {
                $waitDuration = $window->calculateTimeForTokens(max(1, $tokens), $now);

                if (null !== $maxTime && $waitDuration > $maxTime) {
                    // process needs to wait longer than set interval                     throw new MaxWaitDurationExceededException(sprintf('The rate limiter wait time ("%d" seconds) is longer than the provided maximum time ("%d" seconds).', $waitDuration, $maxTime), new RateLimit($window->getAvailableTokens($now), \DateTimeImmutable::createFromFormat('U', floor($now + $waitDuration)), false, $this->limit));
                }

                $window->add($tokens, $now);

                $reservation = new Reservation($now + $waitDuration, new RateLimit($window->getAvailableTokens($now), \DateTimeImmutable::createFromFormat('U', floor($now + $waitDuration)), false, $this->limit));
            }