Duration.php

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<?php

namespace ILIAS\HTTP\Duration;

use ILIAS\HTTP\Duration\Increment\IncrementStrategy;

abstract class Duration
{
    protected const S_TO_US = 1_000_000;

    protected const MS_TO_US = 1_000;

    protected ?IncrementStrategy $increment = null;

    public function __construct(protected int $duration_in_ms)
    {
    }

    public function withIncrement(IncrementStrategy $increment): self
    {
        $clone = clone $this;
        $clone->increment = $increment;

        return $clone;
    }

    public function increment(): self
    {
        if (null === $this->increment) {
            return $this;
        }

        $clone = clone $this;
        $clone->duration_in_ms = $clone->increment->increment($clone->duration_in_ms);

        return $clone;
    }

    public function withDuration(int $duration_in_ms): self
    {
        $clone = clone $this;
        $clone->duration_in_ms = $duration_in_ms;

        return $clone;
    }

    public function getDuration(): int
    {
        return $this->duration_in_ms;
    }
}