public static function priceDifference()
{
$orderId = Core::validate(self::getVar('orderId'));
if ($orderId == null) {
self::printErrorJson("not all parameters are defined");
return;
}
$order = new Order();
if (!$order->findById($orderId)) {
self::printErrorJson("order with id = '{$orderId}' is not exist");
return;
}
$rate = new Rate();
$rate->findById($order->getRateId());
$result['success'] = 1;
$result['return'] = $order->getType() == OrderType::BUY ? $rate->getBid() - $order->getPrice() : $rate->getAsk() - $order->getPrice();
print json_encode($result);
}
private static function refreshRatePrices(Rate $rate)
{
$where['RateId'] = $rate->getId();
$where['Done'] = 0;
$where['Type'] = OrderType::BUY;
$buyDeals = Deal::findBy($where);
$where['Type'] = OrderType::SELL;
$sellDeals = Deal::findBy($where);
$getOnlyPrices = function ($deals) {
return $deals['Price'];
};
$isUpdated = false;
if (!empty($buyDeals)) {
$buyPrices = array_map($getOnlyPrices, $buyDeals);
$bid = max($buyPrices);
if ($rate->getBid() != $bid) {
$rate->setBid($bid);
$rate->save();
$isUpdated = true;
}
}
if (!empty($sellDeals)) {
$sellPrices = array_map($getOnlyPrices, $sellDeals);
$ask = min($sellPrices);
if ($rate->getAsk() != $ask) {
$rate->setAsk($ask);
$rate->save();
$isUpdated = true;
}
}
return $isUpdated;
}