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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\price; |
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use hiqdev\php\billing\action\ActionInterface; |
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use hiqdev\php\billing\charge\ChargeModifier; |
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use hiqdev\php\billing\charge\SettableChargeModifierTrait; |
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use hiqdev\php\billing\Exception\CannotReassignException; |
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use hiqdev\php\billing\plan\PlanInterface; |
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use hiqdev\php\billing\target\TargetInterface; |
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use hiqdev\php\billing\type\TypeInterface; |
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use hiqdev\php\units\QuantityInterface; |
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use Money\Money; |
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/** |
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* Price. |
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* @see PriceInterface |
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* By default Price is applicable when same target and same type as Action. |
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* But it can be different e.g. same price for all targets when certain type. |
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* |
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* @author Andrii Vasyliev <[email protected]> |
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*/ |
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abstract class AbstractPrice implements PriceInterface, ChargeModifier |
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{ |
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use SettableChargeModifierTrait; |
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/** |
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* @var integer |
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*/ |
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protected $id; |
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/** |
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* @var TypeInterface |
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*/ |
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protected $type; |
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/** |
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* @var TargetInterface |
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*/ |
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protected $target; |
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/** |
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* @var PlanInterface|null |
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*/ |
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protected $plan; |
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public function __construct( |
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$id, |
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TypeInterface $type, |
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TargetInterface $target, |
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PlanInterface $plan = null |
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) { |
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$this->id = $id; |
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$this->type = $type; |
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$this->target = $target; |
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$this->plan = $plan; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getId() |
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{ |
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return $this->id; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getType() |
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{ |
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return $this->type; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getTarget() |
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{ |
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return $this->target; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getPlan(): ?PlanInterface |
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{ |
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return $this->plan; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function hasPlan() |
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{ |
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return $this->plan !== null; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function setPlan(PlanInterface $plan) |
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{ |
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if ($this->hasPlan()) { |
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throw new CannotReassignException('price plan'); |
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} |
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$this->plan = $plan; |
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} |
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/** |
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* {@inheritdoc} |
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* Default sum calculation method: sum = price * usage. |
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*/ |
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public function calculateSum(QuantityInterface $quantity): ?Money |
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{ |
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$usage = $this->calculateUsage($quantity); |
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if ($usage === null) { |
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return null; |
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} |
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$price = $this->calculatePrice($quantity); |
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if ($price === null) { |
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return null; |
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} |
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/// TODO add configurable rounding mode later |
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return $price->multiply($usage->getQuantity(), Money::ROUND_UP); |
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} |
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public function jsonSerialize() |
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{ |
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return array_filter(get_object_vars($this)); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function isApplicable(ActionInterface $action): bool |
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{ |
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/* sorry, debugging facility |
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var_dump([ |
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'action.target' => $action->getTarget(), |
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'price.target' => $this->getTarget(), |
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'action.type' => $action->getType(), |
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'price.type' => $this->getType(), |
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'target matches' => $action->getTarget()->matches($this->getTarget()), |
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'type matches' => $action->getType()->matches($this->getType()), |
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]); */ |
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return $action->getTarget()->matches($this->getTarget()) && |
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$action->getType()->matches($this->getType()); |
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} |
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} |
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