<?php

namespace CBOR\OtherObject;

use Brick\Math\BigInteger;
use CBOR\Normalizable;
use CBOR\OtherObject as Base;
use CBOR\Utils;
use InvalidArgumentException;

use function strlen;

use const INF;
use const NAN;

final class DoublePrecisionFloatObject extends Base implements Normalizable
{
    public static function supportedAdditionalInformation(): array
    {
        return [self::OBJECT_DOUBLE_PRECISION_FLOAT];
    }

    public static function createFromLoadedData(int $additionalInformation, ?string $data): Base
    {
        return new self($additionalInformation, $data);
    }

    public static function create(string $value): self
    {
        if (strlen($value) !== 8) {
            throw new InvalidArgumentException('The value is not a valid double precision floating point');
        }

        return new self(self::OBJECT_DOUBLE_PRECISION_FLOAT, $value);
    }

    public function normalize(): float|int
    {
        $exponent = $this->getExponent();
        $mantissa = $this->getMantissa();
        $sign = $this->getSign();

        if ($exponent === 0) {
            $val = $mantissa * 2 ** (-(1022 + 52));
        } elseif ($exponent !== 0b11111111111) {
            $val = ($mantissa + (1 << 52)) * 2 ** ($exponent - (1023 + 52));
        } else {
            $val = $mantissa === 0 ? INF : NAN;
        }

        return $sign * $val;
    }

    public function getExponent(): int
    {
        $data = $this->data;
        Utils::assertString($data, 'Invalid data');

        return Utils::binToBigInteger($data)->shiftedRight(52)->and(Utils::hexToBigInteger('7ff'))->toInt();
    }

    public function getMantissa(): int
    {
        $data = $this->data;
        Utils::assertString($data, 'Invalid data');

        return Utils::binToBigInteger($data)->and(Utils::hexToBigInteger('fffffffffffff'))->toInt();
    }

    public function getSign(): int
    {
        $data = $this->data;
        Utils::assertString($data, 'Invalid data');
        $sign = Utils::binToBigInteger($data)->shiftedRight(63);

        return $sign->isEqualTo(BigInteger::one()) ? -1 : 1;
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MTE2NjU0MDk1OTc4OTQyNiA0NTQ5MDA5OTU2MDIyNTE2IDQ0MzM5MTY3NzA5Njk5OTM=