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<?php |
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namespace Cerbero\LazyJsonPages\Services; |
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use Generator; |
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use Psr\Http\Message\ResponseInterface; |
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/** |
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* The collector of pages. |
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*/ |
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final class Book |
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{ |
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/** |
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* The HTTP responses of the fetched pages. |
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* |
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* @var array<int, ResponseInterface> |
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*/ |
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private array $pages = []; |
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/** |
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* The pages unable to be fetched. |
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* |
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* @var int[] |
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*/ |
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private array $failedPages = []; |
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/** |
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* Add the HTTP response of the given page. |
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*/ |
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public function addPage(int $page, ResponseInterface $response): self |
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{ |
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$this->pages[$page] = $response; |
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return $this; |
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} |
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/** |
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* Yield and forget each page. |
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* |
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* @return Generator<int, ResponseInterface> |
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*/ |
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public function pullPages(): Generator |
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{ |
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ksort($this->pages); |
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foreach ($this->pages as $page => $response) { |
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yield $response; |
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unset($this->pages[$page]); |
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} |
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} |
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/** |
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* Add the given failed page. |
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*/ |
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public function addFailedPage(int $page): self |
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{ |
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$this->failedPages[] = $page; |
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return $this; |
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} |
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/** |
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* Retrieve and unset the failed pages. |
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* |
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* @return array<int, int> |
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*/ |
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public function pullFailedPages(): array |
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{ |
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$failedPages = $this->failedPages; |
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$this->failedPages = []; |
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return $failedPages; |
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} |
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/** |
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* Retrieve and unset the oldest failed page. |
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*/ |
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public function pullFailedPage(): ?int |
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{ |
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return array_shift($this->failedPages); |
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} |
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} |
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cerbero90 /
lazy-json-pages
