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<?php |
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namespace Fol; |
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use Fol\NotFoundException; |
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use Fol\ContainerException; |
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use Psr\Container\ContainerInterface; |
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use Interop\Container\ServiceProviderInterface; |
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use Psr\Http\Message\UriInterface; |
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use Throwable; |
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/** |
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* Manages an app. |
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*/ |
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class App implements ContainerInterface |
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{ |
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private $services = []; |
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private $items = []; |
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private $path; |
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private $uri; |
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public function __construct(string $path, UriInterface $uri) |
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{ |
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$this->path = rtrim($path, '/') ?: '/'; |
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$this->uri = $uri; |
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} |
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public function addServiceProvider(ServiceProviderInterface $provider): self |
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{ |
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foreach ($provider->getFactories() as $id => $factory) { |
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$this->addFactory($id, $factory); |
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} |
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foreach ($provider->getExtensions() as $id => $extension) { |
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$this->addExtension($id, $extension); |
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} |
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return $this; |
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} |
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View Code Duplication |
public function addFactory(string $id, callable $factory): self |
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{ |
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$service = $this->services[$id] ?? []; |
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$service[0] = $factory; |
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$this->services[$id] = $service; |
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return $this; |
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} |
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View Code Duplication |
public function addExtension($id, callable $extension): self |
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{ |
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$service = $this->services[$id] ?? [null]; |
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$service[] = $extension; |
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$this->services[$id] = $service; |
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return $this; |
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} |
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/** |
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* @see ContainerInterface |
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*/ |
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public function has($id) |
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{ |
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if (isset($this->items[$id])) { |
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return true; |
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} |
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if (isset($this->services[$id][0])) { |
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return true; |
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} |
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return false; |
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} |
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/** |
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* @see ContainerInterface |
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*/ |
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public function get($id) |
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{ |
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if (isset($this->items[$id])) { |
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return $this->items[$id]; |
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} |
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if (isset($this->services[$id][0])) { |
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try { |
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return $this->items[$id] = array_reduce( |
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$this->services[$id], |
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function ($item, callable $callback) { |
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return $callback($this, $item); |
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} |
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); |
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} catch (Throwable $exception) { |
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throw new ContainerException("Error retrieving {$id}", 0, $exception); |
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} |
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} |
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throw new NotFoundException("Identifier {$id} is not found"); |
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} |
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public function set(string $id, $value): self |
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{ |
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$this->items[$id] = $value; |
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return $this; |
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} |
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/** |
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* Returns the absolute path of the app. |
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*/ |
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public function getPath(string ...$dirs): string |
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{ |
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if (empty($dirs)) { |
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return $this->path; |
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} |
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return self::canonicalize($this->path, ...$dirs); |
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} |
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/* |
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* Returns the base uri of the app. |
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*/ |
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public function getUri(string ...$dirs): UriInterface |
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{ |
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if (empty($dirs)) { |
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return $this->uri; |
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} |
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return $this->uri->withPath(self::canonicalize($this->uri->getPath(), ...$dirs)); |
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} |
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/** |
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* helper function to fix paths '//' or '/./' or '/foo/../' in a path. |
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*/ |
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private static function canonicalize(string $base, string ...$dirs): string |
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{ |
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$path = $base.'/'.implode('/', $dirs); |
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$replace = ['#(/\.?/)#', '#/(?!\.\.)[^/]+/\.\./#']; |
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do { |
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$path = preg_replace($replace, '/', $path, -1, $n); |
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} while ($n > 0); |
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return $path; |
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} |
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} |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.