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<?php |
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namespace PipePassage; |
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class Pipe |
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{ |
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/** |
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* Collection of sections. |
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* |
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* @var array |
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*/ |
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protected array $sections = []; |
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/** |
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* Section key. |
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* |
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* @var int |
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*/ |
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protected int $currentSectionKey = 0; |
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/** |
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* @param array $sections |
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*/ |
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public function __construct(array $sections = []) |
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{ |
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foreach ($sections as $section) { |
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$this->next($section); |
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} |
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} |
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/** |
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* Static initialisation helper. |
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* |
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* @return static |
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*/ |
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public static function make(...$arguments): static |
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{ |
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return new static(...$arguments); |
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} |
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/** |
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* Add next section to pipe. |
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* |
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* @param $section |
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* |
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* @return $this |
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*/ |
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public function next($section): static |
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{ |
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$this->sections[] = $section; |
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return $this; |
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} |
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/** |
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* @param object $entity |
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* |
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* @return object |
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*/ |
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public function pass(object $entity): object |
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{ |
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if (empty($this->sections)) { |
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return $entity; |
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} |
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$this->currentSectionKey = -1; |
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$next = $this->createCallback(); |
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$next($entity); |
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return $entity; |
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} |
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/** |
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* @return \Closure |
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*/ |
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protected function createCallback(): \Closure |
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{ |
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$this->currentSectionKey++; |
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$handler = $this->sections[ $this->currentSectionKey ] ?? null; |
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return function ($entity) use ($handler) { |
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if ($handler instanceof PipeSection) { |
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return call_user_func([ $handler, 'handle' ], $entity, $this->createCallback()); |
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} |
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if (is_string($handler) && is_a($handler, PipeSection::class, true)) { |
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return call_user_func([ new $handler(), 'handle' ], $entity, $this->createCallback()); |
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} |
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if (is_callable($handler)) { |
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return call_user_func($handler, $entity, $this->createCallback()); |
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} |
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return $entity; |
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}; |
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} |
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} |
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yaroslawww /
php-pipe-passage
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