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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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* Container for billable items |
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*/ |
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class ItemBasket implements \IteratorAggregate |
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{ |
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/** |
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* @var ItemEnvelope[] Contained items |
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*/ |
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private $items = []; |
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/** |
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* Optionally load items at construct |
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*/ |
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public function __construct(ItemEnvelope ...$items) { |
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foreach ($items as $item) { |
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$this->addItem($item); |
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} |
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} |
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/** |
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* Add item to basket |
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*/ |
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public function addItem(ItemEnvelope $item): self |
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{ |
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$this->items[] = $item; |
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return $this; |
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} |
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/** |
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* Get contained items |
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* |
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* @return ItemEnvelope[] |
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*/ |
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public function getItems(): array |
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{ |
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return $this->items; |
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} |
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/** |
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* Implements the IteratorAggregate interface |
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*/ |
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public function getIterator(): \Traversable |
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{ |
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foreach ($this->getItems() as $item) { |
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yield $item; |
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} |
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} |
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/** |
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* Get number of items in basket |
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*/ |
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public function getNrOfItems(): int |
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{ |
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return count($this->getItems()); |
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} |
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/** |
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* Get number of units in basket (each item may contain multiple units) |
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*/ |
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public function getNrOfUnits(): int |
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{ |
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return array_reduce( |
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$this->getItems(), |
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function (int $carry, ItemEnvelope $item) { |
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return $carry + $item->getNrOfUnits(); |
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}, |
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0 |
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); |
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} |
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/** |
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* Get total cost of all items (VAT excluded) |
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*/ |
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View Code Duplication |
public function getTotalUnitCost(): Amount |
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{ |
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return array_reduce( |
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$this->getItems(), |
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function (Amount $carry, ItemEnvelope $item) { |
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return $carry->add($item->getTotalUnitCost()); |
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}, |
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new Amount('0') |
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); |
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} |
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/** |
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* Get total VAT cost for all items |
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*/ |
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View Code Duplication |
public function getTotalVatCost(): Amount |
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{ |
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return array_reduce( |
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$this->getItems(), |
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function (Amount $carry, ItemEnvelope $item) { |
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return $carry->add($item->getTotalVatCost()); |
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}, |
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new Amount('0') |
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); |
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} |
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/** |
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* Get total cost of all items (VAT included) |
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*/ |
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public function getTotalCost(): Amount |
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{ |
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return $this->getTotalVatCost()->add($this->getTotalUnitCost()); |
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} |
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/** |
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* Get charged vat amounts for non-zero vat rates |
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* |
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* @return Billable[] |
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*/ |
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public function getVatRates(): array |
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{ |
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$rates = []; |
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foreach ($this as $item) { |
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if ($item->getVatRate()->isPositive()) { |
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$key = (string)$item->getVatRate(); |
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if (!array_key_exists($key, $rates)) { |
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$rates[$key] = new SimpleItem('', new Amount('0'), 1, $item->getVatRate()); |
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} |
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$rates[$key] = new SimpleItem( |
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$rates[$key]->getBillingDescription(), |
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$rates[$key]->getCostPerUnit()->add($item->getTotalUnitCost()), |
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$rates[$key]->getNrOfUnits(), |
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$rates[$key]->getVatRate() |
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); |
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} |
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} |
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ksort($rates); |
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return array_values($rates); |
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} |
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} |
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byrokrat /
billing
Loading history...
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.