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<?php |
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/*************************************************************************************/ |
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/* This file is part of the Thelia package. */ |
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/* */ |
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/* Copyright (c) OpenStudio */ |
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/* email : [email protected] */ |
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/* web : http://www.thelia.net */ |
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/* */ |
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/* For the full copyright and license information, please view the LICENSE.txt */ |
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/* file that was distributed with this source code. */ |
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/*************************************************************************************/ |
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namespace Thelia\CurrencyConverter\Provider; |
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use Thelia\CurrencyConverter\Exception\CurrencyNotFoundException; |
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use Thelia\Math\Number; |
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/** |
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* |
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* Europen Central Bank provider. |
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* |
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* The European Central Bank provide all currencies quoted against the euro |
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* The euro is the base currency |
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* |
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* Class ECBProvider |
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* @package Thelia\CurrencyConverter\Provider |
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* @author Manuel Raynaud <[email protected]> |
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*/ |
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class ECBProvider extends BaseProvider implements ProviderInterface |
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{ |
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protected $endPoint = "http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml"; |
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protected $data; |
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public function __construct($loadWebService = true) |
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{ |
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if (true === $loadWebService) { |
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$this->loadFromWebService(); |
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} |
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} |
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private function loadFromWebService($endPoint = null) |
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{ |
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if (null !== $endPoint) { |
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$this->endPoint = $endPoint; |
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} |
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$ch = curl_init($this->endPoint); |
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
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curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); |
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$data = curl_exec($ch); |
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$xml = new \SimpleXMLElement($data); |
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$this->data = $xml->Cube[0]->Cube[0]; |
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} |
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public function loadFromXml($data) |
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{ |
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$xml = new \SimpleXMLElement($data); |
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$this->data = $xml->Cube[0]->Cube[0]; |
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} |
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public function getData() |
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{ |
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return $this->data; |
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} |
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public function convert(Number $number) |
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{ |
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$rateFactor = $this->retrieveRateFactor(); |
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if ($this->to === 'EUR') { |
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return $number->multiply($rateFactor); |
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} else { |
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return $this->convertToOther($rateFactor, $number); |
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} |
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} |
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/** |
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* @param \Thelia\Math\Number $rateFactor |
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* @param \Thelia\Math\Number $number |
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* @return \Thelia\Math\Number |
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* @throws \Thelia\CurrencyConverter\Exception\CurrencyNotFoundException if the `to` currency is not support |
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*/ |
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private function convertToOther(Number $rateFactor, Number $number) |
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{ |
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$conversion = false; |
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foreach ($this->data->Cube as $last) { |
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$code = strtoupper($last["currency"]); |
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if ($code === $this->to) { |
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$rate = $rateFactor->multiply((string) $last['rate']); |
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$conversion = $number->multiply($rate); |
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} |
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} |
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if ($conversion === false) { |
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throw new CurrencyNotFoundException($this->to); |
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} |
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return $conversion; |
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} |
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/** |
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* @return \Thelia\Math\Number |
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* @throws \Thelia\CurrencyConverter\Exception\CurrencyNotFoundException if the `from` currency is not support |
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*/ |
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private function retrieveRateFactor() |
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{ |
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$rateFactor = false; |
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if ($this->from === 'EUR') { |
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$rateFactor = new Number(1); |
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} else { |
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// Find the exchange rate for this currency |
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foreach ($this->data->Cube as $last) { |
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$code = strtoupper((string) $last["currency"]); |
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if ($code === $this->from) { |
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// Get the rate factor |
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$rate = new Number((string) $last['rate']); |
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$base = new Number(1); |
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$rateFactor = $base->divide($rate); |
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} |
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} |
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} |
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if (false === $rateFactor) { |
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throw new CurrencyNotFoundException($this->from); |
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} |
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return $rateFactor; |
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} |
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} |
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thelia /
CurrencyConverter
