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<?php |
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declare(strict_types=1); |
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namespace byrokrat\billing; |
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use byrokrat\amount\Amount; |
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/** |
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* Decorates a chargable billable with sum calculations |
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*/ |
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class ItemEnvelope implements Billable |
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{ |
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/** |
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* @var Billable |
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*/ |
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private $billable; |
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/** |
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* Pack billable at construct |
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*/ |
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public function __construct(Billable $billable) |
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{ |
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$this->billable = $billable; |
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} |
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/** |
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* Get packed billable |
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*/ |
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public function getBillable(): Billable |
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{ |
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return $this->billable; |
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} |
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/** |
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* Get total cost of all units (VAT excluded) |
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*/ |
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public function getTotalUnitCost(): Amount |
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{ |
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return $this->getCostPerUnit()->multiplyWith($this->getNrOfUnits()); |
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} |
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/** |
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* Get total VAT cost for all units |
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*/ |
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public function getTotalVatCost(): Amount |
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{ |
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return $this->getTotalUnitCost()->multiplyWith($this->getVatRate()); |
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} |
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/** |
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* Get total cost (VAT included) |
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*/ |
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public function getTotalCost(): Amount |
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{ |
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return $this->getTotalUnitCost()->add($this->getTotalVatCost()); |
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} |
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/** |
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* Pass to decorated billable |
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*/ |
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public function getBillingDescription(): string |
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{ |
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return $this->getBillable()->getBillingDescription(); |
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} |
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/** |
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* Pass to decorated billable |
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*/ |
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public function getCostPerUnit(): Amount |
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{ |
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return $this->getBillable()->getCostPerUnit(); |
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} |
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/** |
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* Pass to decorated billable |
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*/ |
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public function getNrOfUnits(): int |
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{ |
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return $this->getBillable()->getNrOfUnits(); |
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} |
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/** |
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* Pass to decorated billable |
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*/ |
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public function getVatRate(): Amount |
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{ |
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return $this->getBillable()->getVatRate(); |
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} |
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} |
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byrokrat /
billing
