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<?php |
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namespace Simara\Cart\Domain; |
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use Money\Money; |
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use Money\Number; |
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class Price |
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{ |
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private const EURO_TO_CENTS_CONVERTING_BASE = -2; |
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private const CENTS_TO_EURO_CONVERTING_BASE = 2; |
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/** |
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* @var Money |
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*/ |
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private $withVat; |
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public function __construct(string $withVat) |
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{ |
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$cents = $this->eurToCents($withVat); |
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$this->withVat = Money::EUR($cents); |
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} |
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/** |
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* @param self[] $prices |
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* @return self |
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*/ |
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public static function sum(array $prices): self |
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{ |
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return array_reduce($prices, function (self $carry, self $price) { |
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return $carry->add($price); |
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}, new self('0')); |
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} |
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public function getWithVat(): string |
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{ |
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return $this->centsToEurs($this->withVat->getAmount()); |
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} |
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public function add(self $adder): self |
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{ |
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$withVat = $this->withVat->add($adder->withVat); |
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return self::fromMoney($withVat); |
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} |
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public function multiply(int $multiplier): self |
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{ |
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$withVat = $this->withVat->multiply($multiplier); |
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return self::fromMoney($withVat); |
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} |
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private static function fromMoney(Money $withVat): self |
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{ |
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$price = new self('0'); |
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$price->withVat = $withVat; |
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return $price; |
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} |
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private function eurToCents(string $euros): string |
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{ |
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$number = Number::fromString($euros); |
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return $number->base10(self::EURO_TO_CENTS_CONVERTING_BASE)->getIntegerPart(); |
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} |
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private function centsToEurs(string $cents): string |
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{ |
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$number = new Number($cents); |
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$inEuro = $number->base10(self::CENTS_TO_EURO_CONVERTING_BASE); |
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if ($inEuro->isInteger()) { |
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return $inEuro->getIntegerPart(); |
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} else { |
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return $inEuro->getIntegerPart() . '.' . $inEuro->getFractionalPart(); |
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} |
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} |
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} |
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simara-svatopluk /
cart
