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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\modifiers; |
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use hiqdev\php\billing\action\ActionInterface; |
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use hiqdev\php\billing\charge\ChargeInterface; |
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use hiqdev\php\billing\formula\FormulaSemanticsError; |
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use hiqdev\php\billing\price\SinglePrice; |
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use hiqdev\php\billing\target\Target; |
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use hiqdev\php\billing\type\Type; |
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use hiqdev\php\units\Quantity; |
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use Money\Money; |
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/** |
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* Leasing. |
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* |
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* @author Andrii Vasyliev <[email protected]> |
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*/ |
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class Leasing extends Modifier |
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{ |
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public function buildPrice(Money $sum) |
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{ |
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$type = $this->getType(); |
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$target = $this->getTarget(); |
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$prepaid = Quantity::create('items', 0); |
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return new SinglePrice(null, $type, $target, null, $prepaid, $sum); |
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} |
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public function getType() |
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{ |
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return new Type(Type::ANY, 'discount,leasing'); |
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} |
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public function getTarget() |
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{ |
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return new Target(Target::ANY, Target::ANY); |
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} |
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public function till($dummy) |
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{ |
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throw new FormulaSemanticsError('till can not be defined for leasing'); |
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} |
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public function modifyCharge(?ChargeInterface $charge, ActionInterface $action): array |
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{ |
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if ($charge === null) { |
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throw new \Exception('unexpected null charge in Leasing, to be implemented'); |
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} |
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$this->ensureIsValid(); |
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$month = $action->getTime()->modify('first day of this month midnight'); |
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if (!$this->checkPeriod($month)) { |
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return []; |
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} |
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$reason = $this->getReason(); |
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if ($reason) { |
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$charge->setComment($reason->getValue()); |
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} |
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return [$charge]; |
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} |
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protected function ensureIsValid() |
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{ |
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$since = $this->getSince(); |
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if ($since === null) { |
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throw new FormulaSemanticsError('no since given for leasing'); |
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} |
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$term = $this->getTerm(); |
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if ($term === null) { |
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throw new FormulaSemanticsError('no term given for leasing'); |
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} |
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} |
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} |
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This check looks for parameters that have been defined for a function or method, but which are not used in the method body.