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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) 2017-2018, HiQDev (http://hiqdev.com/) |
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*/ |
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namespace hiqdev\php\billing\charge; |
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use DateTimeImmutable; |
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use hiqdev\php\billing\bill\Bill; |
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use hiqdev\php\billing\bill\BillInterface; |
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use hiqdev\php\units\QuantityInterface; |
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use Money\Money; |
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/** |
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* @author Andrii Vasyliev <[email protected]> |
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*/ |
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class Aggregator implements AggregatorInterface |
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{ |
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/** |
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* @var BillInterface[] |
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*/ |
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protected $bills = []; |
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public function aggregateCharges(array $charges) |
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{ |
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$bills = []; |
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foreach ($charges as $charge) { |
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if (is_array($charge)) { |
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$others = $this->aggregateCharges($charge); |
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$bills = $this->aggregateBills($bills, $others); |
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} elseif ($charge instanceof ChargeInterface) { |
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$bill = $this->createBill($charge); |
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$bills = $this->aggregateBills($bills, [$bill]); |
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} else { |
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throw new \Exception('not a Charge given to Aggregator'); |
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} |
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} |
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return $bills; |
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} |
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/** |
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* Aggregate arrays of bills. |
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* @param BillInterface[] $bills |
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* @param BillInterface[] $others |
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* @return BillInterface[] |
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*/ |
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public function aggregateBills(array $bills, array $others) |
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{ |
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foreach ($others as $bill) { |
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$uid = $bill->getUniqueString(); |
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if (empty($bills[$uid])) { |
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$bills[$uid] = $bill; |
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} else { |
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$bills[$uid] = $this->aggregateBill($bills[$uid], $bill); |
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} |
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} |
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return $bills; |
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} |
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public function aggregateBill(BillInterface $first, BillInterface $other) |
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{ |
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return new Bill( |
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null, |
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$first->getType(), |
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$first->getTime(), |
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$this->aggregateSum($first->getSum(), $other->getSum()), |
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$this->aggregateQuantity($first->getQuantity(), $other->getQuantity()), |
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$first->getCustomer(), |
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$first->getTarget(), |
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$first->getPlan(), |
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array_merge($first->getCharges(), $other->getCharges()) |
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); |
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} |
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public function aggregateSum(Money $first, Money $other) |
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{ |
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return $first->add($other); |
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} |
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public function aggregateQuantity(QuantityInterface $first, QuantityInterface $other) |
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{ |
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return $first->add($other); |
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} |
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public function createBill(ChargeInterface $charge) |
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{ |
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return new Bill( |
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null, |
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$this->generalizeType($charge), |
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$this->generalizeTime($charge), |
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$this->generalizeSum($charge), |
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$this->generalizeQuantity($charge), |
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$this->generalizeCustomer($charge), |
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$this->generalizeTarget($charge), |
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$this->generalizePlan($charge), |
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[$charge] |
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); |
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} |
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public function generalizeType(ChargeInterface $charge) |
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{ |
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return $charge->getPrice()->getType(); |
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} |
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public function generalizeTime(ChargeInterface $charge) |
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{ |
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$date = new DateTimeImmutable($charge->getTime()); |
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return $date->modify('first day of this month midnight'); |
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} |
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public function generalizeSum(ChargeInterface $charge) |
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{ |
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return $charge->getSum(); |
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} |
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public function generalizeQuantity(ChargeInterface $charge) |
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{ |
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return $charge->getUsage(); |
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} |
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public function generalizeCustomer(ChargeInterface $charge) |
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{ |
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return $charge->getAction()->getCustomer(); |
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} |
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public function generalizeTarget(ChargeInterface $charge) |
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{ |
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return $charge->getPrice()->getTarget(); |
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} |
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public function generalizePlan(ChargeInterface $charge) |
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{ |
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return $charge->getPrice()->getPlan(); |
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} |
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} |
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hiqdev /
php-billing
