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<?php |
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/** |
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* PHP Billing Library |
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* |
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* @link https://github.com/hiqdev/php-billing |
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* @package php-billing |
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* @license BSD-3-Clause |
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* @copyright Copyright (c) 2017-2020, HiQDev (http://hiqdev.com/) |
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*/ |
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namespace hiqdev\php\billing\tools; |
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use hiqdev\php\billing\bill\BillInterface; |
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use hiqdev\php\billing\bill\BillRepositoryInterface; |
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use hiqdev\php\billing\charge\Charge; |
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use hiqdev\php\billing\charge\ChargeInterface; |
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/** |
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* @author Andrii Vasyliev <[email protected]> |
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*/ |
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class DbMergingAggregator implements AggregatorInterface, MergerInterface |
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{ |
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protected BillRepositoryInterface $billRepository; |
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protected MergerInterface $merger; |
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private AggregatorInterface $localAggregator; |
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public function __construct( |
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AggregatorInterface $localAggregator, |
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BillRepositoryInterface $billRepository, |
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MergerInterface $merger |
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) { |
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$this->billRepository = $billRepository; |
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$this->merger = $merger; |
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$this->localAggregator = $localAggregator; |
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} |
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public function mergeBills(array $bills): array |
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{ |
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$dbBills = $this->billRepository->findByUniqueness($bills); |
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$filteredLocalBills = $this->excludeLocalOnlyZeroBills($bills, $dbBills); |
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return $this->merger->mergeBills(array_merge($filteredLocalBills, $dbBills)); |
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} |
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public function mergeBill(BillInterface $first, BillInterface $other): BillInterface |
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{ |
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return $this->merger->mergeBill($first, $other); |
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} |
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/** |
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* Aggregates given Charges to Bills. |
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* Then merges them with Bills from DB. |
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* |
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* @param ChargeInterface[]|ChargeInterface[][] $charges |
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* @return BillInterface[] |
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* @throws \Exception |
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*/ |
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public function aggregateCharges(array $charges): array |
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{ |
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$localBills = $this->localAggregator->aggregateCharges($charges); |
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$bills = $this->mergeBills($localBills); |
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return $bills; |
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} |
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/** |
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* When a new Zero bill is being produced, it should not be persisted |
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* unless there is already a bill of this uniqueness in the DBMS. |
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* |
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* @param BillInterface[] $localBills |
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* @param BillInterface[] $dbBills |
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* @return BillInterface[] |
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*/ |
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private function excludeLocalOnlyZeroBills(array $localBills, array $dbBills): array |
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{ |
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foreach ($localBills as $i => $localBill) { |
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foreach ($localBill->getCharges() as $charge) { |
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/** @var Charge $charge */ |
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if ($charge->hasEvents()) { |
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continue 2; |
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} |
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} |
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$isZeroSum = $localBill->getSum()->getAmount() === "0"; |
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if (!$isZeroSum) { |
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continue; |
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} |
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$localUniqueString = $localBill->getUniqueString(); |
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foreach ($dbBills as $dbBill) { |
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if ($dbBill->getUniqueString() === $localUniqueString) { |
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continue 2; |
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} |
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} |
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unset($localBills[$i]); |
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} |
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return $localBills; |
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} |
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} |
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hiqdev /
php-billing
