Sysbot\Bin\Serializer

Complexity

Total Complexity

8

Size/Duplication

Total Lines	77
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	0

5 Methods

Rating	Name	Duplication	Size	Complexity
A	__toString()	0	3	1
A	addLong()	0	4	1
A	addLongLong()	0	9	2
A	pack()	0	8	2
A	addString()	0	11	2

<?php

declare(strict_types=1);

namespace Sysbot\Bin;

use BigInteger;
use Exception;
use Sysbot\Bin\Common\BinaryUtils;

/**
 * Class Serializer
 * @package Sysbot\Bin
 */
class Serializer
{

    use BinaryUtils;

    /**
     * @var string
     */
    protected string $bytes = '';

    /**
     * @param string $format
     * @param mixed|null $value
     * @param bool $bigEndian
     * @return string
     */
    public static function pack(string $format, mixed $value = null, bool $bigEndian = false): string
    {
        /** @var string|false $result */
        $result = pack($format, $value);
        if ($bigEndian) {
            $result = strrev($result);
        }
        return $result;
    }

    /**
     * @param int $value
     * @param bool $bigEndian
     * @return $this
     */
    public function addLong(int $value, bool $bigEndian = false): self
    {
        $this->bytes .= self::pack('V', $value, $bigEndian);
        return $this;
    }

    /**
     * @param int|BigInteger $value
     * @param bool $bigEndian
     * @return $this
     * @throws Exception
     */
    public function addLongLong(int|BigInteger $value, bool $bigEndian = false): self
    {
        $value = BigInteger::of($value);
        $data = $value->toBytes();
        if (!$bigEndian) {
            $data = strrev($data);
        }
        $this->bytes .= $data;
        return $this;
    }

    /**
     * @param string $str
     * @return $this
     */
    public function addString(string $str): self
    {
        $len = strlen($str);
        $data = chr($len);
        if (253 < $len) {
            $data = chr(254) . substr(self::pack('V', $len), 0, 3);
            $len++;
        }
        $data .= $str . pack('@' . self::positiveModulo(-$len - 1, 4));
        $this->bytes .= $data;
        return $this;
    }

    /**
     * @return string
     */
    public function __toString(): string
    {
        return $this->bytes;
    }

}