<?php

namespace CBOR;

use InvalidArgumentException;
use RuntimeException;

use function sprintf;
use function strlen;

final class StringStream implements Stream
{
    /** @var resource */
    private $resource;

    public function __construct(string $data)
    {
        $resource = fopen('php://memory', 'rb+');
        if ($resource === false) {
            throw new RuntimeException('Unable to open the memory');
        }
        $result = fwrite($resource, $data);
        if ($result === false) {
            throw new RuntimeException('Unable to write the memory');
        }
        $result = rewind($resource);
        if ($result === false) {
            throw new RuntimeException('Unable to rewind the memory');
        }
        $this->resource = $resource;
    }

    public static function create(string $data): self
    {
        return new self($data);
    }

    public function read(int $length): string
    {
        if ($length === 0) {
            return '';
        }

        $alreadyRead = 0;
        $data = '';
        while ($alreadyRead < $length) {
            $left = $length - $alreadyRead;
            $sizeToRead = $left < 1024 && $left > 0 ? $left : 1024;
            $newData = fread($this->resource, $sizeToRead);
            $alreadyRead += $sizeToRead;

            if ($newData === false) {
                throw new RuntimeException('Unable to read the memory');
            }
            if (strlen($newData) < $sizeToRead) {
                throw new InvalidArgumentException(sprintf(
                    'Out of range. Expected: %d, read: %d.',
                    $length,
                    strlen($data)
                ));
            }
            $data .= $newData;
        }

        if (strlen($data) !== $length) {
            throw new InvalidArgumentException(sprintf(
                'Out of range. Expected: %d, read: %d.',
                $length,
                strlen($data)
            ));
        }

        return $data;
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODU0Njg3MDE3OTkyNDIzNSAxMzUyMzQzNDk2MjYyMjk5IDI4NDY2MjY3NDYxMDAyNDA=