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<?php |
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/** |
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* Copyright © Thomas Klein, All rights reserved. |
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* See LICENSE bundled with this library for license details. |
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*/ |
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declare(strict_types=1); |
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namespace LogicTree\Service; |
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use LogicTree\DataSource; |
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use LogicTree\Node\CombineInterface; |
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use LogicTree\Node\ConditionInterface; |
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use LogicTree\Node\NodeInterface; |
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use LogicTree\Operator\OperatorPool; |
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/** |
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* @api |
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*/ |
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class ConditionManager |
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{ |
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/** |
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* @var OperatorPool |
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*/ |
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private $operatorPool; |
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public function __construct(?OperatorPool $operatorPool = null) |
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{ |
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$this->operatorPool = $operatorPool ?? new OperatorPool(); |
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} |
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public function execute(NodeInterface $node, DataSource $dataSource): bool |
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{ |
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$result = true; |
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if ($node instanceof CombineInterface) { |
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$result = $this->executeCombine($node, $dataSource); |
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} elseif ($node instanceof ConditionInterface) { |
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$result = $this->executeCondition($node, $dataSource->getValue($node->getValueIdentifier())); |
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} |
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return $result; |
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} |
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private function executeCombine(CombineInterface $combine, DataSource $dataSource): bool |
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{ |
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$operator = $this->operatorPool->getOperator(OperatorPool::TYPE_LOGICAL, $combine->getOperator()); |
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$expressions = []; |
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foreach ($combine->getChildren() as $child) { |
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$expressions[] = $this->execute($child, $dataSource); |
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} |
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return ($combine->isInvert() xor $operator->execute(...$expressions)); |
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} |
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private function executeCondition(ConditionInterface $condition, $value): bool |
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{ |
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$operator = $this->operatorPool->getOperator(OperatorPool::TYPE_COMPARATOR, $condition->getOperator()); |
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return $operator->execute($value, $condition->getValueCompare()); |
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} |
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} |
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thomas-kl1 /
php-combine-conditions
