public function getRates(Currency $base)
{
$rates = (array) Request::get(sprintf('http://api.fixer.io/latest?base=%s', $base->getName()))->send()->body->rates;
$ret = [];
foreach ($rates as $key => $rate) {
$ret[$key] = $rate;
}
return $ret;
}
public function getRate(Currency $from, Currency $to, DateTime $date = null)
{
$rates = $this->getRatesFromStore($date);
$dollarFrom = $from->getName() == 'USD' ? 1.0 : $rates[$from->getName()];
$dollarTo = $to->getName() == 'USD' ? 1.0 : $rates[$to->getName()];
$rate = $dollarFrom / $dollarTo;
return new CurrencyPair($from, $to, $rate);
}
/**
* Retrieves exchange rates from http://fixer.io
*
* @param Currency $currency
*/
private function retrieveExchangeRateFor(Currency $currency)
{
$response = $this->client->request('GET', self::EXCHANGE_RATE_API_URL . '/latest', ['query' => ['base' => $this->baseCurrency->getName()]]);
Assert::same($response->getStatusCode(), 200);
$rawExchangeRates = $response->getBody();
$exchangeRates = json_decode($rawExchangeRates, true);
Assert::isArray($exchangeRates);
Assert::keyExists($exchangeRates, 'rates');
Assert::keyExists($exchangeRates['rates'], $currency->getName());
Assert::numeric($exchangeRates['rates'][$currency->getName()]);
$this->exchangeRates[$currency->getName()] = $exchangeRates['rates'][$currency->getName()];
}
/**
* Retrieves exchange rates from http://free.currencyconverterapi.com
*
* @param Currency $currency
*/
private function retrieveExchangeRateFor(Currency $currency)
{
$conversion = sprintf('%s_%s', $currency->getName(), $this->baseCurrency->getName());
$response = $this->client->request('GET', self::EXCHANGE_RATE_API_URL . '/api/v3/convert', ['query' => ['q' => $conversion]]);
Assert::same($response->getStatusCode(), 200);
$rawExchangeRates = $response->getBody();
$exchangeRates = json_decode($rawExchangeRates, true);
Assert::isArray($exchangeRates);
Assert::keyExists($exchangeRates, 'results');
Assert::keyExists($exchangeRates['results'], $conversion);
Assert::keyExists($exchangeRates['results'][$conversion], 'val');
Assert::numeric($exchangeRates['results'][$conversion]['val']);
$this->exchangeRates[$currency->getName()] = (double) $exchangeRates['results'][$conversion]['val'];
}
/**
* @inheritdoc
*/
public function getRelativeRatio($referenceCurrencyCode, $currencyCode)
{
$currency = new Currency($currencyCode);
$referenceCurrency = new Currency($referenceCurrencyCode);
if ($currencyCode === $referenceCurrencyCode) {
return (double) 1;
}
$ratioList = $this->storage->loadRatioList();
if (!array_key_exists($currency->getName(), $ratioList)) {
throw new MoneyException("unknown ratio for currency {$currencyCode}");
}
if (!array_key_exists($referenceCurrency->getName(), $ratioList)) {
throw new MoneyException("unknown ratio for currency {$referenceCurrencyCode}");
}
return $ratioList[$currency->getName()] / $ratioList[$referenceCurrency->getName()];
}
public function getCurrencyPair(Currency $counterCurrency, Currency $baseCurrency)
{
$from = $counterCurrency->getName();
$to = $baseCurrency->getName();
$pair = null;
$url = self::URL . sprintf(self::QUERY, $from, $to);
$html = @file_get_contents($url);
if ($html == false) {
throw new CurrencyRateException('Rate not avaiable, resource not found');
}
$doc = new \DOMDocument();
@$doc->loadHTML($html);
$el = $doc->getElementById('currency_converter_result');
if ($el && $el->hasChildNodes()) {
foreach ($el->childNodes as $node) {
if ($node->nodeName == 'span' && preg_match('/[0-9\\.]+ ' . $to . '/i', $node->textContent, $matches)) {
$ratio = (double) $matches[0];
$pair = new CurrencyPair($counterCurrency, $baseCurrency, $ratio);
}
}
}
if (!$pair) {
throw new CurrencyRateException('Rate not avaiable, can not parse result: ' . $html);
}
return $pair;
}
private function getRates(Currency $currency)
{
$rates = $this->pool->getItem($currency->getName());
if ($rates->isMiss()) {
$newRates = $this->rates->getRates($currency);
$rates->set($newRates, $this->ttl);
}
return $newRates;
}
public function getCurrencyPair(Currency $counterCurrency, Currency $baseCurrency)
{
$from = $counterCurrency->getName();
$to = $baseCurrency->getName();
$pair = null;
$result = file_get_contents(sprintf(self::URL, $from, $to, $this->key));
$result = json_decode($result);
if ($result && isset($result->rate)) {
$pair = new CurrencyPair($counterCurrency, $baseCurrency, $result->rate);
}
if ($pair == null) {
throw new CurrencyRateException('Rate not avaiable, missing in result');
}
return $pair;
}
public function getCurrencyPair(Currency $counterCurrency, Currency $baseCurrency)
{
$from = $counterCurrency->getName();
$to = $baseCurrency->getName();
$pair = null;
$url = self::URL . sprintf(self::QUERY, $from, $to);
$csv = @file_get_contents($url);
if ($csv == false) {
throw new CurrencyRateException('Rate not avaiable, resource not found');
}
if (preg_match('/"' . $to . '",([0-9\\.]+)/i', $csv, $matches)) {
if ($matches && isset($matches[1])) {
$ratio = (double) $matches[1];
} else {
throw new CurrencyRateException('Rate not avaiable, can not parse result: ' . $csv);
}
$pair = new CurrencyPair($counterCurrency, $baseCurrency, $ratio);
} else {
throw new CurrencyRateException('Rate not avaiable, can not parse result: ' . $csv);
}
return $pair;
}
/**
* @param $units
* @param Currency $referenceCurrency
* @param Currency $currency
* @return string The endpoint to get Currency conversion
*/
protected function getEndpoint($units, Currency $referenceCurrency, Currency $currency)
{
return sprintf('https://www.google.com/finance/converter?a=%s&from=%s&to=%s', $units, $referenceCurrency->getName(), $currency->getName());
}
/**
* {@inheritdoc}
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(['currency' => $this->currency->getName()]);
}
/**
* @param Currency $referenceCurrency
* @param Currency $currency
*
* @return string The yahoo finance endpoint to get Currency exchange rate
*/
protected function getEndpoint(Currency $referenceCurrency, Currency $currency)
{
return 'https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20yahoo.finance.xchange%20where%20pair%20in%20(%22' . $referenceCurrency->getName() . $currency->getName() . '%22)&format=json&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys';
}
public function getRates(Currency $base)
{
return $this->rates[$base->getName()];
}
/**
* @return string
*/
public function getCurrencySymbol()
{
return Intl::getCurrencyBundle()->getCurrencySymbol($this->currency->getName(), $this->locale);
}
/**
* Returns the name as string of the given currency
*
* @param Currency $currency
* @return string
*/
public function formatCurrencyAsName(Currency $currency)
{
return $currency->getName();
}
/**
* @param Currency $referenceCurrency
* @param Currency $currency
*
* @return string The yahoo finance endpoint to get Currency exchange rate
*/
protected function getEndpoint(Currency $referenceCurrency, Currency $currency)
{
$q = sprintf('select * from yahoo.finance.xchange where pair in ("%s%s")', $referenceCurrency->getName(), $currency->getName());
$queryString = http_build_query(array('q' => $q, 'format' => 'json', 'env' => 'store://datatables.org/alltableswithkeys'));
return 'https://query.yahooapis.com/v1/public/yql?' . $queryString;
}
