src/CurrencyTransformer/PolishCurrencyTransformer.php
<?php
namespace NumberToWords\CurrencyTransformer;
use NumberToWords\Exception\NumberToWordsException;
use NumberToWords\Language\Polish\PolishDictionary;
use NumberToWords\Language\Polish\PolishExponentInflector;
use NumberToWords\Language\Polish\PolishNounGenderInflector;
use NumberToWords\Language\Polish\PolishTripletTransformer;
use NumberToWords\NumberTransformer\NumberTransformerBuilder;
use NumberToWords\Service\NumberToTripletsConverter;
use NumberToWords\TransformerOptions\CurrencyTransformerOptions;
class PolishCurrencyTransformer implements CurrencyTransformer
{
public function toWords(int $amount, string $currency, ?CurrencyTransformerOptions $options = null): string
{
$dictionary = new PolishDictionary();
$numberToTripletsConverter = new NumberToTripletsConverter();
$tripletTransformer = new PolishTripletTransformer($dictionary);
$nounGenderInflector = new PolishNounGenderInflector();
$exponentInflector = new PolishExponentInflector($nounGenderInflector);
$numberTransformer = (new NumberTransformerBuilder())
->withDictionary($dictionary)
->withWordsSeparatedBy(' ')
->transformNumbersBySplittingIntoTriplets($numberToTripletsConverter, $tripletTransformer)
->inflectExponentByNumbers($exponentInflector)
->build();
$decimal = (int) ($amount / 100);
$fraction = abs($amount % 100);
if ($fraction === 0) {
$fraction = null;
}
$currency = strtoupper($currency);
if (!array_key_exists($currency, PolishDictionary::$currencyNames)) {
throw new NumberToWordsException(
sprintf('Currency "%s" is not available for "%s" language', $currency, get_class($this))
);
}
$currencyNames = PolishDictionary::$currencyNames[$currency];
$words = [];
$words[] = $numberTransformer->toWords($decimal);
$words[] = $nounGenderInflector->inflectNounByNumber(
$decimal,
$currencyNames[0][0],
$currencyNames[0][1],
$currencyNames[0][2]
);
if (null !== $fraction) {
$words[] = $numberTransformer->toWords($fraction);
$words[] = $nounGenderInflector->inflectNounByNumber(
$fraction,
$currencyNames[1][0],
$currencyNames[1][1],
$currencyNames[1][2]
);
}
return implode(' ', $words);
}
}