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<?php |
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declare(strict_types=1); |
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namespace Linio\Type; |
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class Money |
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{ |
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/** |
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* Money amount in cents. |
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* |
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* @var int |
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*/ |
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protected $amount = 0; |
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/** |
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* Number of digits after the decimal place. |
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* |
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* @var int |
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*/ |
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protected $scale = 2; |
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public function __construct(float $amount = 0) |
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{ |
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$this->amount = (int) round($amount * 100); |
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} |
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public static function fromCents(float $cents): Money |
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{ |
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$money = new static(); |
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$money->setAmount($cents); |
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return $money; |
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} |
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public function add(Money $operand): Money |
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{ |
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$result = $this->amount + $operand->getAmount(); |
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return static::fromCents($result); |
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} |
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public function subtract(Money $operand): Money |
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{ |
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$result = $this->amount - $operand->getAmount(); |
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return static::fromCents($result); |
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} |
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public function multiply(float $multiplier): Money |
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{ |
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$result = $this->amount * $multiplier; |
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return static::fromCents($result); |
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} |
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public function divide(float $divisor): Money |
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{ |
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$result = $this->amount / $divisor; |
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return static::fromCents($result); |
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} |
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public function getPercentage(float $percentage): Money |
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{ |
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$percentage = $percentage / 100; |
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$result = $this->amount * $percentage; |
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return static::fromCents($result); |
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} |
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public function applyPercentage(float $percentage): Money |
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{ |
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$percentage = $this->getPercentage($percentage); |
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return $this->add($percentage); |
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} |
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public function getInterest(float $rate, int $duration): Money |
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{ |
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$interest = $rate / 100; |
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$result = ($this->amount * $duration) * $interest; |
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return static::fromCents($result); |
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} |
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public function applyInterest(float $rate, int $duration): Money |
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{ |
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$interest = $this->getInterest($rate, $duration); |
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return $this->add($interest); |
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} |
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public function equals($other): bool |
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{ |
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if (!($other instanceof static)) { |
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return false; |
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} |
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return $this->amount === $other->getAmount(); |
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} |
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public function greaterThan(Money $other): bool |
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{ |
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return $this->amount >= $other->getAmount(); |
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} |
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public function lessThan(Money $other): bool |
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{ |
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return $this->amount <= $other->getAmount(); |
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} |
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public function isZero(): bool |
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{ |
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return $this->amount == 0; |
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} |
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public function isPositive(): bool |
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{ |
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return $this->amount > 0; |
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} |
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public function isNegative(): bool |
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{ |
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return $this->amount < 0; |
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} |
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public function getMoneyAmount(): float |
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{ |
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$money = $this->amount / 100; |
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return round($money, $this->scale); |
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} |
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public function getAmount(): int |
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{ |
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return $this->amount; |
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} |
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public function setAmount(float $amount) |
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{ |
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$this->amount = (int) round($amount); |
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} |
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public function getScale(): int |
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{ |
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return $this->scale; |
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} |
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public function setScale(int $scale) |
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{ |
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$this->scale = $scale; |
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} |
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public function __toString(): string |
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{ |
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return (string) $this->amount; |
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} |
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} |
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