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<?php
declare(strict_types=1);
namespace ZipStream\Test;
use Psr\Http\Message\StreamInterface;
use RuntimeException;
class EndlessCycleStream implements StreamInterface
{
private int $offset = 0;
public function __construct(private readonly string $toRepeat = '0') {}
public function __toString(): string
{
throw new RuntimeException('Infinite Stream!');
}
public function close(): void
{
$this->detach();
}
/**
* @return null
*/
public function detach()
{
return;
}
public function getSize(): ?int
{
return null;
}
public function tell(): int
{
return $this->offset;
}
public function eof(): bool
{
return false;
}
public function isSeekable(): bool
{
return true;
}
public function seek(int $offset, int $whence = SEEK_SET): void
{
switch ($whence) {
case SEEK_SET:
$this->offset = $offset;
break;
case SEEK_CUR:
$this->offset += $offset;
break;
case SEEK_END:
throw new RuntimeException('Infinite Stream!');
break;
}
}
public function rewind(): void
{
$this->seek(0);
}
public function isWritable(): bool
{
return false;
}
public function write(string $string): int
{
throw new RuntimeException('Not writeable');
}
public function isReadable(): bool
{
return true;
}
public function read(int $length): string
{
$this->offset += $length;
return substr(str_repeat($this->toRepeat, (int) ceil($length / strlen($this->toRepeat))), 0, $length);
}
public function getContents(): string
{
throw new RuntimeException('Infinite Stream!');
}
public function getMetadata(?string $key = null): array|null
{
return $key !== null ? null : [];
}
}
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