/**
* Build a plain signature
* @param Object $order the order to be sent in a transaction request
* @param string $merchantId the identifier of merchant
* @param string $key authentication key
* @return the plain message
*/
static function buildMessage($order, $merchantId, $key)
{
SignatureUtil::validateOrder($order, $merchantId);
$txValueName = PayUKeyMapName::TX_VALUE;
$referenceCode = $order->referenceCode;
$value = $order->additionalValues->{$txValueName}->value;
$floatValue = floatval($value);
$valueRounded = round($floatValue, SignatureUtil::DECIMALS, PHP_ROUND_HALF_EVEN);
$valueFormatted = number_format($valueRounded, SignatureUtil::DECIMALS, SignatureUtil::DECIMAL_POINT, SignatureUtil::THOUSANDS_SEPARATOR);
$currency = $order->additionalValues->{$txValueName}->currency;
$message = $key . '~' . $merchantId . '~' . $referenceCode . '~' . $valueFormatted . '~' . $currency;
return $message;
}
