/**
* {inheritDoc}
*/
public function supports(MarketDepthPriceInterface $requestedDepth)
{
// need to match BID -> ASK and ASK -> BID to be satisfied
if ($requestedDepth->getType() === $this->type) {
$errorMessage = "Cannot check if market depth price of type '%s' supports market depth price of type '%s' (only %s orders can satisfy %s orders)";
throw new InvalidArgumentException(sprintf($errorMessage, $requestedDepth->getType(), $this->type, CurrencyExchangeOperationInterface::TYPE_BID, CurrencyExchangeOperationInterface::TYPE_ASK));
}
// must be equal or inverse
if (!$this->equals($requestedDepth) && !$this->isInverse($requestedDepth)) {
$errorMessage = "Cannot check if market depth price is supported: fromCurrency and toCurrency must match.";
throw new InvalidArgumentException($errorMessage);
}
$thisAmountCurrency = $this->depth->getCurrency();
$requestedAmountCurrency = $requestedDepth->getDepth()->getCurrency();
$requestedAmount = $requestedDepth->getDepth();
if (!$thisAmountCurrency->equals($requestedAmountCurrency)) {
$requestedAmount = $requestedDepth->convert($requestedAmount);
}
if (CurrencyExchangeOperationInterface::TYPE_ASK === $this->type) {
// request is BID (to buy), so they must outbid or match our asking price
if ($requestedDepth->getMultiplier() >= $this->multiplier && $requestedAmount->isLessOrEqual($this->depth)) {
return true;
}
return false;
}
// CurrencyExchangeOperationInterface::TYPE_BID === $this->type
// request is ASK (to sell), so their selling price must be less or matching our buy price
if ($requestedDepth->getMultiplier() <= $this->multiplier && $this->depth->isLessOrEqual($requestedAmount)) {
return true;
}
return false;
}
/**
* {inheritDoc}
*/
public function convert(MoneyInterface $amount)
{
if ($amount->getCurrency()->equals($this->getFromCurrency())) {
$totalPrecision = $this->fromCurrency->getPrecision() + $this->toCurrency->getPrecision();
$targetPrecision = $this->toCurrency->getPrecision();
$newAmount = bcmul((string) $amount->getAmountFloat(), (string) $this->getMultiplier(), $totalPrecision);
$roundedAmount = round($newAmount, $targetPrecision);
$newMoney = new Money($this->toCurrency);
$newMoney->setAmountFloat($roundedAmount);
return $newMoney;
}
// rate represents inverse, so treat "from" and "to" reversed
if ($amount->getCurrency()->equals($this->getToCurrency())) {
$totalPrecision = $this->fromCurrency->getPrecision() + $this->toCurrency->getPrecision();
$targetPrecision = $this->fromCurrency->getPrecision();
$newAmount = bcdiv((string) $amount->getAmountFloat(), (string) $this->getMultiplier(), $totalPrecision);
$roundedAmount = round($newAmount, $targetPrecision);
$newMoney = new Money($this->fromCurrency);
$newMoney->setAmountFloat($roundedAmount);
return $newMoney;
}
throw new InvalidArgumentException("Cannot convert from " . $amount->getCurrency()->getCurrencyCode() . " using CurrencyRate of " . $this->getFromCurrency()->getCurrencyCode() . " to " . $this->getToCurrency()->getCurrencyCode() . ": CurrencyRate must include the base currency " . $amount->getCurrency()->getCurrencyCode());
}
public function isSameCurrency(MoneyInterface $rightHandValue)
{
return $this->currency->equals($rightHandValue->getCurrency());
}
