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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Yii\Debug\Api; |
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use Closure; |
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use Psr\Http\Message\StreamInterface; |
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final class ServerSentEventsStream implements StreamInterface, \Stringable |
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{ |
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public array $buffer = []; |
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private bool $eof = false; |
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public function __construct( |
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private Closure $stream, |
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) { |
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} |
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public function close(): void |
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{ |
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$this->eof = true; |
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} |
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public function detach(): void |
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{ |
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$this->eof = true; |
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} |
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public function getSize() |
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{ |
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return null; |
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} |
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public function tell(): int |
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{ |
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return 0; |
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} |
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public function eof(): bool |
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{ |
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return $this->eof; |
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} |
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public function isSeekable(): bool |
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{ |
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return false; |
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} |
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public function seek($offset, $whence = SEEK_SET): void |
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{ |
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throw new \RuntimeException('Stream is not seekable'); |
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} |
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public function rewind(): void |
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{ |
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throw new \RuntimeException('Stream is not seekable'); |
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} |
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public function isWritable(): bool |
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{ |
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return false; |
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} |
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public function write($string): void |
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{ |
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throw new \RuntimeException('Stream is not writable'); |
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} |
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public function isReadable(): bool |
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{ |
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return true; |
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} |
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/** |
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* TODO: support length reading |
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*/ |
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public function read(int $length): string |
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{ |
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$continue = ($this->stream)($this->buffer); |
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if (!$continue) { |
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$this->eof = true; |
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} |
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$output = ''; |
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foreach ($this->buffer as $key => $value) { |
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unset($this->buffer[$key]); |
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$output .= sprintf("data: %s\n", $value); |
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} |
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$output .= "\n"; |
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return $output; |
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} |
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public function getContents(): string |
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{ |
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return $this->read(1024); |
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} |
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public function getMetadata($key = null): array |
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{ |
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return []; |
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} |
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public function __toString(): string |
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{ |
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return $this->getContents(); |
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} |
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} |
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yiisoft /
yii-debug-api
