/**
* @param CurrencyPair $currencyPair
* @return Rate
* @throws Exception
*/
public function fetchRate(CurrencyPair $currencyPair)
{
$providers = [$this->mainProvider => CurrencyRateProvider::getByName($this->mainProvider), $this->secondProvider => CurrencyRateProvider::getByName($this->secondProvider)];
if (count($providers) !== 2) {
throw new Exception('One of providers not found');
}
$rates = [];
/** @var CurrencyRateProvider $provider */
foreach ($providers as $name => $provider) {
if (null === $provider) {
throw new Exception("Provider \"{$name}\" not found!");
}
try {
$providerHandler = $provider->getImplementationInstance($this->httpAdapter);
if ($providerHandler !== null) {
$swap = new Swap($providerHandler);
$rate = $swap->quote($currencyPair->getBaseCurrency() . '/' . $currencyPair->getQuoteCurrency())->getValue();
$rates[] = floatval($rate);
} else {
throw new Exception('Provider "' . $provider->name . '" not found');
}
} catch (\Exception $e) {
throw new Exception('One or more currency providers did not return result');
}
}
$min = min($rates);
$max = max($rates);
return new Rate($max - $min >= $max * $this->criticalDifference / 100 ? $max : $rates[0], new \DateTime());
}
public function fetchRate(CurrencyPair $currencyPair)
{
$providerIds = [(int) $this->mainProvider, (int) $this->secondProvider];
/** @var CurrencyRateProvider[] $providers */
$providers = CurrencyRateProvider::find()->where(['id' => $providerIds])->orderBy(['FIELD (`id`, ' . implode(',', $providerIds) . ')' => ''])->all();
if (count($providers) !== 2) {
throw new Exception('One of providers not found');
}
$rates = [];
foreach ($providers as $provider) {
try {
$providerHandler = $provider->getImplementationInstance($this->httpAdapter);
if ($providerHandler !== null) {
$swap = new Swap($providerHandler);
$rate = $swap->quote($currencyPair->getBaseCurrency() . '/' . $currencyPair->getQuoteCurrency())->getValue();
$rates[] = floatval($rate);
} else {
throw new Exception('Provider "' . $provider->name . '" not found');
}
} catch (\Exception $e) {
throw new Exception('One or more currency providers did not return result');
}
}
$min = min($rates);
$max = max($rates);
return new Rate($max - $min >= $max * $this->criticalDifference / 100 ? $max : $rates[0], new \DateTime());
}
/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair)
{
$url = sprintf(self::URL, $currencyPair->getBaseCurrency() . $currencyPair->getQuoteCurrency(), $this->token);
$content = $this->fetchContent($url);
$json = StringUtil::jsonToArray($content);
$data = $json[0];
if ('Success' === $data['Outcome']) {
$dateString = $data['Date'] . ' ' . $data['Time'];
return new Rate((string) $data['Bid'], \DateTime::createFromFormat('m/d/Y H:i:s A', $dateString, new \DateTimeZone('UTC')));
}
throw new Exception($data['Message']);
}
/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair)
{
if (!isset($this->rates[$currencyPair->toString()])) {
throw new UnsupportedCurrencyPairException($currencyPair);
}
$rate = $this->rates[$currencyPair->toString()];
if (is_scalar($rate)) {
$rate = new Rate($rate);
} elseif (!$rate instanceof Rate) {
throw new InternalException(sprintf('Rates passed to the ArrayProvider must be Rate instances or scalars "%s" given.', gettype($rate)));
}
return $rate;
}
public function fetchRate(CurrencyPair $currencyPair)
{
$date = date("d/m/Y");
$url = sprintf(self::URL, $date);
$content = $this->httpAdapter->get($url)->getBody()->getContents();
$cbr = new \SimpleXMLElement($content);
$res = $cbr->xpath('/ValCurs/Valute[CharCode="' . $currencyPair->getBaseCurrency() . '"]');
if (array_key_exists(0, $res)) {
return new Rate(str_replace(',', '.', $res[0]->Value), new \DateTime());
} else {
throw new \Swap\Exception\Exception('The currency is not supported');
}
}
/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair, $date = null)
{
$getAppend = function ($from, $to, $date = null) {
$date = isset($date) ? $date : 'latest';
return "{$date}?symbols={$to}&base={$from}";
};
$url = self::URL . $getAppend($currencyPair->getBaseCurrency(), $currencyPair->getQuoteCurrency(), $date);
$content = $this->fetchContent($url);
$return = StringUtil::jsonToArray($content);
$return['date'] = isset($date) ? new \DateTime($date) : new \DateTime();
return new Rate(current($return['rates']), $return['date']);
throw new UnsupportedCurrencyPairException($currencyPair);
}
/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair)
{
$queryPairs = sprintf('"%s%s"', $currencyPair->getBaseCurrency(), $currencyPair->getQuoteCurrency());
$query = sprintf('select * from yahoo.finance.xchange where pair in (%s)', $queryPairs);
$url = sprintf(self::URL, urlencode($query));
$content = $this->fetchContent($url);
$json = StringUtil::jsonToArray($content);
$data = $json['query']['results']['rate'];
if ('0.00' === $data['Rate'] || 'N/A' === $data['Date']) {
throw new UnsupportedCurrencyPairException($currencyPair);
}
$dateString = $data['Date'] . ' ' . $data['Time'];
$date = \DateTime::createFromFormat('m/d/Y H:ia', $dateString);
return new Rate($data['Rate'], $date);
}
/**
* {@inheritdoc}
*/
public function quote($currencyPair, $date = null)
{
if (is_string($currencyPair)) {
$currencyPair = CurrencyPair::createFromString($currencyPair);
} elseif (!$currencyPair instanceof CurrencyPair) {
throw new \InvalidArgumentException('The currency pair must be either a string or an instance of CurrencyPair');
}
//todo: abstract???
if (isset($date)) {
// date cache check, first cache check
if (null !== $this->dateCache && null !== ($rate = $this->dateCache->fetchRate($currencyPair, $date))) {
return $rate;
}
$rate = $this->provider->fetchRate($currencyPair, $date);
//store date and rate
if (null !== $this->dateCache && isset($date)) {
$this->dateCache->storeRate($currencyPair, $rate, $date);
}
return $rate;
}
// original cache check
if (null !== $this->cache && null !== ($rate = $this->cache->fetchRate($currencyPair))) {
return $rate;
}
$rate = $this->provider->fetchRate($currencyPair);
// original cache set
if (null !== $this->cache) {
$this->cache->storeRate($currencyPair, $rate);
}
return $rate;
}
/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair)
{
$url = sprintf(self::URL, $currencyPair->getBaseCurrency(), $currencyPair->getQuoteCurrency());
$content = $this->fetchContent($url);
$document = new \DOMDocument();
@$document->loadHTML($content);
$xpath = new \DOMXPath($document);
$nodes = $xpath->query('//span[@class="bld"]');
if (0 === $nodes->length) {
throw new Exception('The currency is not supported or Google changed the response format');
}
$nodeContent = $nodes->item(0)->textContent;
$bid = strstr($nodeContent, ' ', true);
if (!is_numeric($bid)) {
throw new Exception('The currency is not supported or Google changed the response format');
}
return new Rate($bid, new \DateTime());
}
/**
* @test
*/
public function it_fetches_a_rate_from_scalars()
{
$arrayProvider = new ArrayProvider(['EUR/USD' => 1.5, 'USD/GBP' => '1.25', 'JPY/GBP' => 1]);
$eurUsd = $arrayProvider->fetchRate(CurrencyPair::createFromString('EUR/USD'));
$usdGbp = $arrayProvider->fetchRate(CurrencyPair::createFromString('USD/GBP'));
$jpyGbp = $arrayProvider->fetchRate(CurrencyPair::createFromString('JPY/GBP'));
$this->assertEquals('1.50', $eurUsd->getValue());
$this->assertEquals('1.25', $usdGbp->getValue());
$this->assertEquals('1', $jpyGbp->getValue());
}
/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair)
{
if ('EUR' !== $currencyPair->getBaseCurrency()) {
throw new UnsupportedCurrencyPairException($currencyPair);
}
$content = $this->fetchContent(self::URL);
$xmlElement = StringUtil::xmlToElement($content);
$cube = $xmlElement->Cube->Cube;
$cubeAttributes = $cube->attributes();
$date = new \DateTime((string) $cubeAttributes['time']);
foreach ($cube->Cube as $cube) {
$cubeAttributes = $cube->attributes();
$cubeQuoteCurrency = (string) $cubeAttributes['currency'];
if ($cubeQuoteCurrency === $currencyPair->getQuoteCurrency()) {
return new Rate((string) $cubeAttributes['rate'], $date);
}
}
throw new UnsupportedCurrencyPairException($currencyPair);
}
/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair)
{
$content = $this->fetchContent(self::URL);
$xmlElement = StringUtil::xmlToElement($content);
$baseCurrency = (string) $xmlElement->Body->OrigCurrency;
if ($baseCurrency !== $currencyPair->getBaseCurrency()) {
throw new UnsupportedCurrencyPairException($currencyPair);
}
$cube = $xmlElement->Body->Cube;
$cubeAttributes = $cube->attributes();
$date = new \DateTime((string) $cubeAttributes['date']);
foreach ($cube->Rate as $rate) {
$rateAttributes = $rate->attributes();
$rateQuoteCurrency = (string) $rateAttributes['currency'];
if ($rateQuoteCurrency === $currencyPair->getQuoteCurrency()) {
$rateValue = !empty($rateAttributes['multiplier']) ? (double) $rate / (int) $rateAttributes['multiplier'] : (double) $rate;
return new Rate((string) $rateValue, $date);
}
}
throw new UnsupportedCurrencyPairException($currencyPair);
}
public function fetchRate(CurrencyPair $currencyPair)
{
/** @var CurrencyRateProvider $provider */
$provider = CurrencyRateProvider::findOne($this->provider);
if ($provider === null) {
throw new Exception('Provider not found');
}
try {
$providerHandler = $provider->getImplementationInstance($this->httpAdapter);
$swap = new Swap($providerHandler);
$rate = $swap->quote($currencyPair->getBaseCurrency() . '/' . $currencyPair->getQuoteCurrency())->getValue();
if ($this->marginMultiplier !== null && $this->marginMultiplier > 1) {
$rate *= $this->marginMultiplier;
}
if ($this->fixedMargin !== null && $this->fixedMargin > 0) {
$rate += $this->fixedMargin;
}
} catch (\Exception $e) {
throw new Exception('Calculating error');
}
return new Rate($rate, new \DateTime());
}
/**
* {@inheritdoc}
*/
public function quote($currencyPair)
{
if (is_string($currencyPair)) {
$currencyPair = CurrencyPair::createFromString($currencyPair);
} elseif (!$currencyPair instanceof CurrencyPair) {
throw new \InvalidArgumentException('The currency pair must be either a string or an instance of CurrencyPair');
}
if (null !== $this->cache && null !== ($rate = $this->cache->fetchRate($currencyPair))) {
return $rate;
}
$rate = $this->provider->fetchRate($currencyPair);
if (null !== $this->cache) {
$this->cache->storeRate($currencyPair, $rate);
}
return $rate;
}
/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair)
{
if (!$this->enterprise && 'USD' !== $currencyPair->getBaseCurrency()) {
throw new UnsupportedCurrencyPairException($currencyPair);
}
if ($this->enterprise) {
$url = sprintf(self::ENTERPRISE_URL, $this->appId, $currencyPair->getBaseCurrency(), $currencyPair->getQuoteCurrency());
} else {
$url = sprintf(self::FREE_URL, $this->appId);
}
$content = $this->fetchContent($url);
$data = StringUtil::jsonToArray($content);
if (isset($data['error'])) {
throw new Exception($data['description']);
}
$date = new \DateTime();
$date->setTimestamp($data['timestamp']);
if ($data['base'] === $currencyPair->getBaseCurrency() && isset($data['rates'][$currencyPair->getQuoteCurrency()])) {
return new Rate((string) $data['rates'][$currencyPair->getQuoteCurrency()], $date);
}
throw new UnsupportedCurrencyPairException($currencyPair);
}
/**
* @test
*/
public function it_can_be_converted_to_a_string()
{
$pair = new CurrencyPair('EUR', 'USD');
$this->assertEquals('EUR/USD', (string) $pair);
$this->assertEquals('EUR/USD', $pair->toString());
}
public function __construct(CurrencyPair $currencyPair)
{
parent::__construct(sprintf('The currency pair "%s" is not supported.', $currencyPair->toString()));
$this->currencyPair = $currencyPair;
}
protected function getKey(CurrencyPair $currencyPair, $date)
{
return $currencyPair->toString() . '_' . $date;
}
/**
* {@inheritdoc}
*/
public function storeRate(CurrencyPair $currencyPair, Rate $rate)
{
$this->store->put($currencyPair->toString(), $rate, $this->ttl);
}
/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair)
{
$url = sprintf(self::URL, $currencyPair->getBaseCurrency(), $currencyPair->getQuoteCurrency());
$content = $this->fetchContent($url);
return new Rate((string) StringUtil::xmlToElement($content), new \DateTime());
}
