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<?php |
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declare(strict_types=1); |
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namespace SteffenBrand\CurrCurr\Client; |
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use GuzzleHttp\Client; |
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use GuzzleHttp\Psr7\Response; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\SimpleCache\CacheInterface; |
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use SteffenBrand\CurrCurr\Exception\ExchangeRatesRequestFailedException; |
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use SteffenBrand\CurrCurr\Mapper\ExchangeRatesMapper; |
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use SteffenBrand\CurrCurr\Mapper\MapperInterface; |
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use SteffenBrand\CurrCurr\Model\CacheConfig; |
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use SteffenBrand\CurrCurr\Model\ExchangeRate; |
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/** |
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* Class EcbClient |
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* @package SteffenBrand\CurrCurr\Client |
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*/ |
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class EcbClient implements EcbClientInterface |
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{ |
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/** |
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* @var string |
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*/ |
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private $exchangeRatesUrl; |
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/** |
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* @var CacheConfig |
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*/ |
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private $cacheConfig; |
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/** |
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* @var MapperInterface |
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*/ |
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private $mapper; |
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/** |
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* @var Client |
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*/ |
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private $client; |
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/** |
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* EcbClient constructor. |
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* |
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* @param string $exchangeRatesUrl |
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* @param CacheConfig|null $cacheConfig |
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* @param MapperInterface|null $mapper |
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*/ |
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public function __construct( |
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string $exchangeRatesUrl = self::DEFAULT_EXCHANGE_RATES_URL, |
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CacheConfig $cacheConfig = null, |
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MapperInterface $mapper = null) |
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{ |
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$this->exchangeRatesUrl = $exchangeRatesUrl; |
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$this->cacheConfig = $cacheConfig; |
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if (null === $mapper) { |
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$mapper = new ExchangeRatesMapper(); |
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} |
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$this->mapper = $mapper; |
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$this->client = new Client(); |
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} |
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/** |
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* Get exchange rates. |
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* |
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* @return ExchangeRate[] |
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* @throws \SteffenBrand\CurrCurr\Exception\ExchangeRatesRequestFailedException |
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* @throws \GuzzleHttp\Exception\GuzzleException |
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* @throws \Psr\SimpleCache\InvalidArgumentException |
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*/ |
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public function getExchangeRates(): array |
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{ |
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try { |
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if (null !== $this->cacheConfig && $this->cacheConfig->getCache() instanceof CacheInterface) { |
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$response = $this->performCachedRequest(); |
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} else { |
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$response = $this->performRequest(); |
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} |
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} catch (\Exception $e) { |
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throw new ExchangeRatesRequestFailedException($e); |
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} |
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return $this->mapper->map($response); |
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} |
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/** |
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* Perform cached request. |
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* |
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* @return \Psr\Http\Message\ResponseInterface |
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* @throws \GuzzleHttp\Exception\GuzzleException |
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* @throws \Psr\SimpleCache\InvalidArgumentException |
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*/ |
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private function performCachedRequest(): ResponseInterface |
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{ |
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$responseBody = $this->cacheConfig->getCache()->get($this->cacheConfig->getCacheKey(), null); |
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if (null !== $responseBody) { |
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return new Response(200, [], $responseBody); |
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} |
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$response = $this->performRequest(); |
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if ($this->cacheConfig->getCacheTimeInSeconds() === CacheConfig::CACHE_UNTIL_MIDNIGHT) { |
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$this->cacheConfig->setCacheTimeInSeconds(strtotime('tomorrow') - time()); |
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} |
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$responseBody = (string) $response->getBody(); |
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$this->cacheConfig->getCache()->set( |
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$this->cacheConfig->getCacheKey(), |
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$responseBody, |
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$this->cacheConfig->getCacheTimeInSeconds() |
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); |
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return $response; |
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} |
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/** |
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* Perform request. |
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* |
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* @return \Psr\Http\Message\ResponseInterface |
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* @throws \GuzzleHttp\Exception\GuzzleException |
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*/ |
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private function performRequest(): ResponseInterface |
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{ |
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return $this->client->request('GET', $this->exchangeRatesUrl); |
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} |
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} |
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steffenbrand /
curr-curr
