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<?php |
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/* |
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* This file is part of the ONGR package. |
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* |
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* (c) NFQ Technologies UAB <[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 ONGR\CurrencyExchangeBundle\Service; |
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use ONGR\CurrencyExchangeBundle\Exception\UndefinedCurrencyException; |
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/** |
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* This class handles currency rates download and exchange. |
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*/ |
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class CurrencyExchangeService |
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{ |
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/** |
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* @var CurrencyRatesService |
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*/ |
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private $rates = null; |
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/** |
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* @var string |
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*/ |
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private $defaultCurrency; |
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/** |
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* @param CurrencyRatesService $rates |
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* @param string $defaultCurrency |
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*/ |
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public function __construct(CurrencyRatesService $rates, $defaultCurrency) |
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{ |
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$this->rates = $rates; |
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$this->defaultCurrency = $defaultCurrency; |
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} |
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/** |
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* @param string $currency |
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* @param string|null $date |
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* |
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* @throws UndefinedCurrencyException |
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* |
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* @return float |
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*/ |
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public function getCurrencyRate($currency, $date = null) |
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{ |
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$rates = $this->rates->getRates($date); |
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if (isset($rates[$currency])) { |
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return $rates[$currency]; |
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} |
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throw new UndefinedCurrencyException('Currency ' . $currency . ' not found.'); |
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} |
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/** |
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* @return array|null |
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1 |
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*/ |
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public function getCurrencies() |
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{ |
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return $this->rates->getRates(); |
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} |
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/** |
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* This function calculate rates. |
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* |
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* @param float|int $amount |
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* @param string $toCurrency |
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* @param null $fromCurrency |
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* @param string|null $date |
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* |
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* @return float |
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*/ |
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public function calculateRate($amount, $toCurrency, $fromCurrency = null, $date = null) |
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{ |
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if (!isset($fromCurrency)) { |
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$fromCurrency = $this->defaultCurrency; |
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} |
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if ($this->rates->getBaseCurrency() != $fromCurrency) { |
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$amount = $amount / $this->getCurrencyRate($fromCurrency, $date); |
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} |
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if ($toCurrency == $this->rates->getBaseCurrency()) { |
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return $amount; |
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} |
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return $amount * $this->getCurrencyRate($toCurrency, $date); |
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} |
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} |
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ongr-io /
CurrencyExchangeBundle
