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<?php |
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namespace hiqdev\billing\hiapi\tools; |
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use hiqdev\php\billing\bill\BillInterface; |
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use hiqdev\php\billing\tools\MergerInterface; |
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/** |
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* Class GroupByClientMerger merges bills by the buyer. |
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* |
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* Could be used to get totals by client in a list of bills. |
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* |
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* @author Dmytro Naumenko <[email protected]> |
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*/ |
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final class GroupByClientMerger implements MergerInterface |
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{ |
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private const CUSTOMER_UNKNOWN = 'guest'; |
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/** |
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* @var MergerInterface |
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*/ |
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private $defaultMerger; |
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/** |
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* @var MonthlyBillQuantityFixer |
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*/ |
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private $monthlyBillQuantityFixer; |
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public function __construct(MergerInterface $defaultMergingStrategy, MonthlyBillQuantityFixer $monthlyBillQuantityFixer) |
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{ |
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$this->defaultMerger = $defaultMergingStrategy; |
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$this->monthlyBillQuantityFixer = $monthlyBillQuantityFixer; |
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} |
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/** |
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* Merges array of bills. |
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* @param BillInterface[] $bills |
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* @return BillInterface[] |
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*/ |
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public function mergeBills(array $bills): array |
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{ |
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$res = []; |
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foreach ($bills as $bill) { |
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$buyer = $bill->getCustomer()->getUniqueId() ?? self::CUSTOMER_UNKNOWN; |
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if (empty($res[$buyer])) { |
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$res[$buyer] = $bill; |
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} else { |
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$res[$buyer] = $this->mergeBill($res[$buyer], $bill); |
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} |
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} |
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return $res; |
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} |
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/** |
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* Merges two bills in one. |
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* @param BillInterface $first |
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* @param BillInterface $other |
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* @return BillInterface |
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*/ |
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public function mergeBill(BillInterface $first, BillInterface $other): BillInterface |
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{ |
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$bill = $this->defaultMerger->mergeBill($first, $other); |
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$this->monthlyBillQuantityFixer->__invoke($bill); |
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return $bill; |
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} |
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} |
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hiqdev /
billing-hiapi
