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<?php |
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namespace seregazhuk\PinterestBot\Api; |
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use ReflectionClass; |
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use seregazhuk\PinterestBot\Api\Providers\Provider; |
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use seregazhuk\PinterestBot\Exceptions\WrongProvider; |
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use seregazhuk\PinterestBot\Api\Contracts\HttpClient; |
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use seregazhuk\PinterestBot\Api\Providers\ProviderWrapper; |
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class ProvidersContainer |
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{ |
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const PROVIDERS_NAMESPACE = 'seregazhuk\\PinterestBot\\Api\\Providers\\'; |
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/** |
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* References to the request that travels |
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* through the application. |
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* |
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* @var Request |
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*/ |
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protected $request; |
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/** |
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* @var Response |
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*/ |
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protected $response; |
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/** |
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* A array containing the cached providers. |
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* |
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* @var array |
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*/ |
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protected $providers = []; |
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/** |
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* @param Request $request |
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* @param Response $response |
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*/ |
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public function __construct(Request $request, Response $response) |
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{ |
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$this->request = $request; |
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$this->response = $response; |
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} |
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/** |
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* Gets provider object by name. If there is no such provider |
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* in providers array, it will try to create it, then save |
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* it, and then return. |
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* |
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* @param string $provider |
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* |
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* @throws WrongProvider |
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* |
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* @return Provider |
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*/ |
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public function getProvider($provider) |
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{ |
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$provider = strtolower($provider); |
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// Check if an instance has already been initiated. If not |
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// build it and then add to the providers array. |
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if (!isset($this->providers[$provider])) { |
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$this->addProvider($provider); |
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} |
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return $this->providers[$provider]; |
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} |
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/** |
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* Creates provider by class name, and if success saves |
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* it to providers array. Provider class must exist in PROVIDERS_NAMESPACE. |
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* |
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* @param string $provider |
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* @throws WrongProvider |
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*/ |
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protected function addProvider($provider) |
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{ |
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$className = $this->resolveProviderClass($provider); |
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$this->providers[$provider] = $this->buildProvider($className); |
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} |
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/** |
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* Build Provider object with reflection API. |
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* |
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* @param string $className |
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* @throws WrongProvider |
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* @return object |
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*/ |
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protected function buildProvider($className) |
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{ |
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$provider = (new ReflectionClass($className)) |
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->newInstanceArgs([$this->request, $this->response]); |
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return new ProviderWrapper($provider); |
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} |
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/** |
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* Proxies call to Request object and returns message from |
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* the error object. |
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* |
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* @return string|null |
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*/ |
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public function getLastError() |
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{ |
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$error = $this |
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->response |
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->getLastError(); |
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return isset($error['message']) ? $error['message'] : null; |
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} |
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/** |
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* Simply proxies call to Response object. |
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* |
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* @return array|null |
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*/ |
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public function getClientInfo() |
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{ |
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return $this->response->getClientInfo(); |
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} |
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/** |
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* Returns HttpClient object for setting user-agent string or |
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* other CURL available options. |
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* |
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* @return HttpClient |
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*/ |
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public function getHttpClient() |
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{ |
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return $this->request->getHttpClient(); |
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} |
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/** |
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* @param $provider |
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* @return string |
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* @throws WrongProvider |
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*/ |
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protected function resolveProviderClass($provider) |
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{ |
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$className = self::PROVIDERS_NAMESPACE . ucfirst($provider); |
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if (!class_exists($className)) { |
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throw new WrongProvider("Provider $className not found."); |
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} |
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return $className; |
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} |
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} |
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seregazhuk /
php-pinterest-bot
