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<?php |
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/* |
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* This file is part of the Sylius package. |
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* |
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* (c) Paweł Jędrzejewski |
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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 Sylius\Component\Currency\Converter; |
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use Sylius\Component\Currency\Model\ExchangeRateInterface; |
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use Sylius\Component\Currency\Repository\ExchangeRateRepositoryInterface; |
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/** |
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* @author Paweł Jędrzejewski <[email protected]> |
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*/ |
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final class CurrencyConverter implements CurrencyConverterInterface |
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{ |
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/** |
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* @var ExchangeRateRepositoryInterface |
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*/ |
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private $exchangeRateRepository; |
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/** |
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* @var array |
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*/ |
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private $cache; |
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/** |
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* @param ExchangeRateRepositoryInterface $exchangeRateRepository |
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*/ |
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public function __construct(ExchangeRateRepositoryInterface $exchangeRateRepository) |
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{ |
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$this->exchangeRateRepository = $exchangeRateRepository; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function convert($amount, $sourceCurrencyCode, $targetCurrencyCode) |
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{ |
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if ($sourceCurrencyCode === $targetCurrencyCode) { |
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return $amount; |
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} |
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$exchangeRate = $this->getExchangeRate($sourceCurrencyCode, $targetCurrencyCode); |
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if (null === $exchangeRate) { |
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return $amount; |
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} |
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if ($exchangeRate->getSourceCurrency()->getCode() === $sourceCurrencyCode) { |
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return (int) round($amount * $exchangeRate->getRatio()); |
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} |
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return (int) round($amount / $exchangeRate->getRatio()); |
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} |
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/** |
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* @param string $sourceCode |
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* @param string $targetCode |
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* |
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* @return ExchangeRateInterface |
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*/ |
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private function getExchangeRate($sourceCode, $targetCode) |
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{ |
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$sourceTargetIndex = $this->createIndex($sourceCode, $targetCode); |
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if (isset($this->cache[$sourceTargetIndex])) { |
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return $this->cache[$sourceTargetIndex]; |
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} |
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$targetSourceIndex = $this->createIndex($targetCode, $sourceCode); |
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if (isset($this->cache[$targetSourceIndex])) { |
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return $this->cache[$targetSourceIndex]; |
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} |
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return $this->cache[$sourceTargetIndex] = $this->exchangeRateRepository->findOneWithCurrencyPair($sourceCode, $targetCode); |
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} |
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/** |
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* @param $prefix |
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* @param $suffix |
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* |
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* @return string |
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*/ |
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private function createIndex($prefix, $suffix) |
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{ |
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return sprintf('%s-%s', $prefix, $suffix); |
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} |
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} |
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pamil /
Sylius
Very long variable names usually make code harder to read. It is therefore recommended not to make variable names too verbose.