/**
* @param int|string $amount Amount, expressed in the smallest units of $currency (eg cents)
* @param Currency $currency
*
* @throws \InvalidArgumentException If amount is not integer
*/
public function __construct($amount, Currency $currency)
{
if (filter_var($amount, FILTER_VALIDATE_INT) === false && !Number::fromString($amount)->isInteger()) {
throw new \InvalidArgumentException('Amount must be an integer(ish) value');
}
$this->amount = (string) $amount;
$this->currency = $currency;
}
/**
* {@inheritdoc}
*/
public function round($number, $roundingMode)
{
if (Money::ROUND_HALF_POSITIVE_INFINITY === $roundingMode) {
$number = Number::fromString((string) $number);
if ($number->isHalf() === true) {
return $this->castInteger(ceil((string) $number));
}
return $this->castInteger(round((string) $number, 0, Money::ROUND_HALF_UP));
}
if (Money::ROUND_HALF_NEGATIVE_INFINITY === $roundingMode) {
$number = Number::fromString((string) $number);
if ($number->isHalf() === true) {
return $this->castInteger(floor((string) $number));
}
return $this->castInteger(round((string) $number, 0, Money::ROUND_HALF_DOWN));
}
return $this->castInteger(round($number, 0, $roundingMode));
}
/**
* {@inheritdoc}
*/
public function round($number, $roundingMode)
{
$number = Number::fromString((string) $number);
if ($number->isDecimal() === false) {
return (string) $number;
}
if ($number->isHalf() === false) {
return $this->roundDigit($number);
}
if (Money::ROUND_HALF_UP === $roundingMode) {
return bcadd((string) $number, $number->getIntegerRoundingMultiplier(), 0);
}
if (Money::ROUND_HALF_DOWN === $roundingMode) {
return bcadd((string) $number, '0', 0);
}
if (Money::ROUND_HALF_EVEN === $roundingMode) {
if ($number->isCurrentEven() === true) {
return bcadd((string) $number, '0', 0);
}
return bcadd((string) $number, $number->getIntegerRoundingMultiplier(), 0);
}
if (Money::ROUND_HALF_ODD === $roundingMode) {
if ($number->isCurrentEven() === true) {
return bcadd((string) $number, $number->getIntegerRoundingMultiplier(), 0);
}
return bcadd((string) $number, '0', 0);
}
if (Money::ROUND_HALF_POSITIVE_INFINITY === $roundingMode) {
if ($number->isNegative() === true) {
return bcadd((string) $number, '0', 0);
}
return bcadd((string) $number, $number->getIntegerRoundingMultiplier(), 0);
}
if (Money::ROUND_HALF_NEGATIVE_INFINITY === $roundingMode) {
if ($number->isNegative() === true) {
return bcadd((string) $number, $number->getIntegerRoundingMultiplier(), 0);
}
return bcadd((string) $number, '0', 0);
}
throw new \InvalidArgumentException('Unknown rounding mode');
}
