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<?php |
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namespace MiladRahimi\PhpRouter\Dispatching; |
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use Closure; |
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use Laminas\Diactoros\ServerRequest; |
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use MiladRahimi\PhpContainer\Container; |
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use MiladRahimi\PhpContainer\Exceptions\ContainerException; |
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use MiladRahimi\PhpRouter\Exceptions\InvalidCallableException; |
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use Psr\Http\Message\ServerRequestInterface; |
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/** |
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* It calls (runs) middleware and controllers |
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*/ |
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class Caller |
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{ |
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private Container $container; |
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public function __construct(Container $container) |
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{ |
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$this->container = $container; |
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} |
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/** |
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* Call a callable stack |
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* |
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* @param string[] $callables |
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* @param ServerRequestInterface $request |
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* @param int $index |
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* @return mixed |
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* @throws ContainerException |
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* @throws InvalidCallableException |
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*/ |
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public function stack(array $callables, ServerRequestInterface $request, int $index = 0) |
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{ |
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$this->container->singleton(ServerRequest::class, $request); |
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$this->container->singleton(ServerRequestInterface::class, $request); |
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if (isset($callables[$index + 1])) { |
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$this->container->closure('$next', function (ServerRequestInterface $request) use ($callables, $index) { |
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return $this->stack($callables, $request, $index + 1); |
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}); |
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} else { |
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$this->container->delete('$next'); |
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} |
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return $this->call($callables[$index]); |
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} |
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/** |
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* Run a callable |
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* |
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* @param Closure|callable|string $callable |
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* @return mixed |
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* @throws InvalidCallableException |
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* @throws ContainerException |
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*/ |
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public function call($callable) |
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{ |
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if (is_array($callable)) { |
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if (count($callable) != 2) { |
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throw new InvalidCallableException('Invalid callable: ' . implode(',', $callable)); |
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} |
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[$class, $method] = $callable; |
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if (!class_exists($class)) { |
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throw new InvalidCallableException("Class `$class` not found."); |
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} |
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$object = $this->container->instantiate($class); |
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if (!method_exists($object, $method)) { |
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throw new InvalidCallableException("Method `$class::$method` is not declared."); |
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} |
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$callable = [$object, $method]; |
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} else { |
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if (is_string($callable)) { |
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if (class_exists($callable)) { |
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$callable = new $callable(); |
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} else { |
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throw new InvalidCallableException("Class `$callable` not found."); |
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} |
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} |
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if (is_object($callable) && !$callable instanceof Closure) { |
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if (method_exists($callable, 'handle')) { |
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$callable = [$callable, 'handle']; |
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} else { |
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throw new InvalidCallableException("Method `handle` is not declared."); |
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} |
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} |
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} |
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if (!is_callable($callable)) { |
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throw new InvalidCallableException('Invalid callable.'); |
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} |
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return $this->container->call($callable); |
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} |
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} |
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