<?php

namespace CBOR\OtherObject;

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

use function strlen;

use const INF;
use const NAN;

final class SinglePrecisionFloatObject extends Base
{
    public static function supportedAdditionalInformation(): array
    {
        return [self::OBJECT_SINGLE_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) !== 4) {
            throw new InvalidArgumentException('The value is not a valid single precision floating point');
        }

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

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

        if ($exponent === 0) {
            $val = $mantissa * 2 ** (-(126 + 23));
        } elseif ($exponent !== 0b11111111) {
            $val = ($mantissa + (1 << 23)) * 2 ** ($exponent - (127 + 23));
        } 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(23)->and(Utils::hexToBigInteger('ff'))->toInt();
    }

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

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

    public function getSign(): int
    {
        $data = $this->data;
        Utils::assertString($data, 'Invalid data');
        $sign = Utils::binToBigInteger($data)->shiftedRight(31);

        return $sign->isEqualTo(BigInteger::one()) ? -1 : 1;
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODAzMjQ1NDYwNzUzMDAyMCAzOTY3MjMwODkwMjEzODc3IDQ4ODkwNTcwOTExMDIwNjg=