public function allocate(array $ratios, $roundToPrecision = self::ROUND_TO_DEFAULT)
{
$total = array_sum($ratios);
if (!count($ratios) || !$total) {
throw new InvalidArgumentException('Invalid ratios specified: at least one ore more positive ratios must be provided.');
}
if (is_integer($roundToPrecision)) {
$precision = $roundToPrecision;
} else {
$precision = self::ROUND_TO_DEFAULT === $roundToPrecision ? $this->currency->getPrecision() : $this->currency->getDisplayPrecision();
}
$currency = clone $this->currency;
$currency->setPrecision($precision);
$currency->setDisplayPrecision($this->currency->getDisplayPrecision());
$amount = new Money($currency);
$amount->setAmountFloat($this->getAmountFloat());
$remainder = clone $amount;
$results = array();
$increment = $amount->getScale() / pow(10, $currency->getPrecision());
foreach ($ratios as $ratio) {
if ($ratio < 0) {
throw new InvalidArgumentException("Invalid share ratio '" . $ratio . "' supplied: ratios may not be negative amounts.");
}
$share = $amount->multiply($ratio)->divide($total);
$results[] = $share;
$remainder = $remainder->subtract($share);
}
for ($i = 0; $remainder->isPositive(); $i++) {
$amountInteger = $results[$i]->getAmountInteger();
$results[$i]->setAmountInteger($amountInteger + $increment);
$increment = $amount->getScale() / pow(10, $amount->currency->getPrecision());
$remainderAmountInteger = $remainder->getAmountInteger();
$remainder->setAmountInteger($remainderAmountInteger - $increment);
}
$convertedResults = array();
foreach ($results as $result) {
/**
* @var $result Money
*/
$converted = new Money($this->currency);
$converted->setAmountFloat($result->getAmountFloat());
$convertedResults[] = $converted;
}
return $convertedResults;
}
/**
* {inheritDoc}
*/
public function equals(CurrencyInterface $currency)
{
return $this->currencyCode === $currency->getCurrencyCode() && $this->precision === $currency->getPrecision() && $this->displayPrecision === $currency->getDisplayPrecision();
}
/**
* Compares currency codes as plain strings, ignoring precision
*
* @param \Matmar10\Money\Entity\CurrencyInterface $currency The currency pair to check against
* @param \Matmar10\Money\Entity\CurrencyInterface $compareToCurrency The currency pair to check against
* @return boolean
*/
static function currencyCodesMatch(CurrencyInterface $currency, CurrencyInterface $compareToCurrency)
{
return $currency->getCurrencyCode() === $compareToCurrency->getCurrencyCode();
}
