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<?php namespace Darryldecode\Cart; |
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use Darryldecode\Cart\Exceptions\InvalidConditionException; |
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use Darryldecode\Cart\Helpers\Helpers; |
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use Darryldecode\Cart\Validators\CartConditionValidator; |
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/** |
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* Created by PhpStorm. |
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* User: darryl |
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* Date: 1/15/2015 |
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* Time: 9:02 PM |
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*/ |
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class CartCondition { |
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/** |
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* @var array |
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*/ |
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private $args; |
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/** |
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* the parsed raw value of the condition |
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* |
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* @var |
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*/ |
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private $parsedRawValue; |
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/** |
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* @param array $args (name, type, target, value) |
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* @throws InvalidConditionException |
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*/ |
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public function __construct(array $args) |
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{ |
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$this->args = $args; |
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if( Helpers::isMultiArray($args) ) |
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{ |
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Throw new InvalidConditionException('Multi dimensional array is not supported.'); |
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} |
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else |
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{ |
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$this->validate($this->args); |
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} |
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} |
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/** |
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* the target of where the condition is applied |
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* |
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* @return mixed |
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*/ |
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public function getTarget() |
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{ |
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return $this->args['target']; |
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} |
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/** |
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* the name of the condition |
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* |
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* @return mixed |
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*/ |
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public function getName() |
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{ |
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return $this->args['name']; |
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} |
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/** |
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* the type of the condition |
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* |
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* @return mixed |
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*/ |
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public function getType() |
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{ |
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return $this->args['type']; |
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} |
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/** |
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* get the additional attributes of a condition |
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* |
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* @return array |
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*/ |
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public function getAttributes() |
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{ |
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return (isset($this->args['attributes'])) ? $this->args['attributes'] : array(); |
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} |
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/** |
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* the value of this the condition |
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* |
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* @return mixed |
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*/ |
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public function getValue() |
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{ |
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return $this->args['value']; |
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} |
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/** |
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* Set the order to apply this condition. If no argument order is applied we return 0 as |
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* indicator that no assignment has been made |
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* @param int $order |
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* @return Integer |
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*/ |
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public function setOrder($order = 1) |
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{ |
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$this->args['order'] = $order; |
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} |
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/** |
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* the order to apply this condition. If no argument order is applied we return 0 as |
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* indicator that no assignment has been made |
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* |
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* @return Integer |
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*/ |
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public function getOrder() |
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{ |
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return isset($this->args['order']) && is_numeric($this->args['order']) ? (int)$this->args['order'] : 0; |
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} |
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/** |
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* apply condition to total or subtotal |
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* |
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* @param $totalOrSubTotalOrPrice |
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* @return float |
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*/ |
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public function applyCondition($totalOrSubTotalOrPrice) |
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{ |
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return $this->apply($totalOrSubTotalOrPrice, $this->getValue()); |
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} |
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/** |
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* get the calculated value of this condition supplied by the subtotal|price |
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* |
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* @param $totalOrSubTotalOrPrice |
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* @return mixed |
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*/ |
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public function getCalculatedValue($totalOrSubTotalOrPrice) |
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{ |
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$this->apply($totalOrSubTotalOrPrice, $this->getValue()); |
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return $this->parsedRawValue; |
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} |
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/** |
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* apply condition |
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* |
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* @param $totalOrSubTotalOrPrice |
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* @param $conditionValue |
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* @return float |
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*/ |
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protected function apply($totalOrSubTotalOrPrice, $conditionValue) |
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{ |
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// if value has a percentage sign on it, we will get first |
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// its percentage then we will evaluate again if the value |
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// has a minus or plus sign so we can decide what to do with the |
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// percentage, whether to add or subtract it to the total/subtotal/price |
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// if we can't find any plus/minus sign, we will assume it as plus sign |
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if( $this->valueIsPercentage($conditionValue) ) |
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{ |
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if( $this->valueIsToBeSubtracted($conditionValue) ) |
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{ |
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$value = Helpers::normalizePrice( $this->cleanValue($conditionValue) ); |
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$this->parsedRawValue = $totalOrSubTotalOrPrice * ($value / 100); |
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$result = floatval($totalOrSubTotalOrPrice - $this->parsedRawValue); |
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} |
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else if ( $this->valueIsToBeAdded($conditionValue) ) |
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{ |
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$value = Helpers::normalizePrice( $this->cleanValue($conditionValue) ); |
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$this->parsedRawValue = $totalOrSubTotalOrPrice * ($value / 100); |
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$result = floatval($totalOrSubTotalOrPrice + $this->parsedRawValue); |
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} |
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else |
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{ |
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$value = Helpers::normalizePrice($conditionValue); |
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$this->parsedRawValue = $totalOrSubTotalOrPrice * ($value / 100); |
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$result = floatval($totalOrSubTotalOrPrice + $this->parsedRawValue); |
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} |
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} |
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// if the value has no percent sign on it, the operation will not be a percentage |
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// next is we will check if it has a minus/plus sign so then we can just deduct it to total/subtotal/price |
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else |
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{ |
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if( $this->valueIsToBeSubtracted($conditionValue) ) |
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{ |
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$this->parsedRawValue = Helpers::normalizePrice( $this->cleanValue($conditionValue) ); |
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$result = floatval($totalOrSubTotalOrPrice - $this->parsedRawValue); |
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} |
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else if ( $this->valueIsToBeAdded($conditionValue) ) |
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{ |
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$this->parsedRawValue = Helpers::normalizePrice( $this->cleanValue($conditionValue) ); |
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$result = floatval($totalOrSubTotalOrPrice + $this->parsedRawValue); |
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} |
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else |
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{ |
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$this->parsedRawValue = Helpers::normalizePrice($conditionValue); |
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$result = floatval($totalOrSubTotalOrPrice + $this->parsedRawValue); |
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} |
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} |
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// Do not allow items with negative prices. |
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return $result < 0 ? 0.00 : $result; |
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} |
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/** |
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* check if value is a percentage |
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* |
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* @param $value |
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* @return bool |
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*/ |
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protected function valueIsPercentage($value) |
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{ |
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return (preg_match('/%/', $value) == 1); |
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} |
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/** |
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* check if value is a subtract |
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* |
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* @param $value |
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* @return bool |
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*/ |
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protected function valueIsToBeSubtracted($value) |
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{ |
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return (preg_match('/\-/', $value) == 1); |
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} |
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/** |
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* check if value is to be added |
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* |
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* @param $value |
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* @return bool |
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*/ |
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protected function valueIsToBeAdded($value) |
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{ |
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return (preg_match('/\+/', $value) == 1); |
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} |
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/** |
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* removes some arithmetic signs (%,+,-) only |
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* |
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* @param $value |
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* @return mixed |
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*/ |
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protected function cleanValue($value) |
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{ |
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return str_replace(array('%','-','+'),'',$value); |
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} |
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/** |
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* validates condition arguments |
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* |
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* @param $args |
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* @throws InvalidConditionException |
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*/ |
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View Code Duplication |
protected function validate($args) |
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{ |
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$rules = array( |
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'name' => 'required', |
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'type' => 'required', |
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'target' => 'required', |
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'value' => 'required', |
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); |
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$validator = CartConditionValidator::make($args, $rules); |
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if( $validator->fails() ) |
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{ |
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throw new InvalidConditionException($validator->messages()->first()); |
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} |
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} |
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} |
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.