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<?php |
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/* |
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* This file is part of the MiddlewareBundle |
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* |
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* (c) Indra Gunawan <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Indragunawan\MiddlewareBundle; |
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/** |
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* @author Indra Gunawan <[email protected]> |
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*/ |
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final class Middleware |
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{ |
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private $middlewares = []; |
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private $sorted = []; |
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public function addMiddleware(string $event, string $name, \Closure $middleware, int $priority = 0): void |
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{ |
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if ($this->isMiddlewareExists($event, $name)) { |
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throw new \InvalidArgumentException(sprintf('Duplicate middleware of name "%s" on "%s" event.', $name, $event)); |
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} |
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$this->middlewares[$event][] = [ |
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'name' => $name, |
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'priority' => $priority, |
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'middleware' => $middleware, |
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]; |
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$this->sorted[$event] = false; |
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} |
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public function getMiddlewares(string $event, array $names): array |
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{ |
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if (empty($this->middlewares[$event]) || empty($names)) { |
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return []; |
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} |
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if (false === $this->sorted[$event]) { |
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$this->sortMiddlewares($event); |
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} |
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$middlewares = array_filter($this->middlewares[$event], function (array $middleware) use ($names) { |
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return \in_array($middleware['name'], $names, true); |
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}); |
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$middlewares = array_reduce($middlewares, function (array $result, array $middleware) { |
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$result[$middleware['name']] = $middleware['middleware'](); |
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return $result; |
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}, []); |
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return $middlewares; |
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} |
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private function sortMiddlewares(string $event) |
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{ |
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// sort middleware by priority desc |
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usort($this->middlewares[$event], function (array $a, array $b) { |
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return $b['priority'] <=> $a['priority']; |
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}); |
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$this->sorted[$event] = true; |
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} |
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private function isMiddlewareExists(string $event, string $name): bool |
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{ |
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if (!isset($this->middlewares[$event])) { |
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return false; |
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} |
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foreach ($this->middlewares[$event] as $middleware) { |
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if ($name === $middleware['name']) { |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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IndraGunawan /
middleware-bundle
