<?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:----OTIxMDA1MTE3MzQ1MTQ0MCA3OTk4OTA5NjYyMzU0NzU3IDg5OTAwNzkyMDc2MTkxODQ=