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<?php |
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declare(strict_types=1); |
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namespace Churn\Result; |
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use SplFixedArray; |
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/** |
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* @internal |
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*/ |
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final class HighestScores |
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{ |
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/** |
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* @var SplFixedArray<ResultInterface|null> |
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*/ |
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private $scores; |
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/** |
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* @param integer $maxSize Max number of results to keep. |
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*/ |
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public function __construct(int $maxSize) |
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{ |
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// PHPDoc mandatory for now, see: https://github.com/vimeo/psalm/issues/7160 |
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/** @psalm-suppress MixedPropertyTypeCoercion */ |
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$this->scores = new SplFixedArray($maxSize); |
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} |
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/** |
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* Returns the results as a normal PHP array. |
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* |
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* @return array<ResultInterface> |
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*/ |
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public function toArray(): array |
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{ |
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return \array_filter($this->scores->toArray()); |
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} |
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/** |
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* Add the result if its priority is high enough. |
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* |
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* @param ResultInterface $result The result for a file. |
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*/ |
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public function add(ResultInterface $result): void |
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{ |
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$worstScore = $this->scores[$this->scores->getSize() - 1]; |
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if (null !== $worstScore && $result->getPriority() <= $worstScore->getPriority()) { |
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return; |
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} |
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$this->insertAt($result, $this->findPosition($result)); |
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} |
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/** |
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* Returns the position where the result must be inserted. |
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* |
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* @param ResultInterface $result The result for a file. |
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*/ |
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private function findPosition(ResultInterface $result): int |
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{ |
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$pos = 0; |
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foreach ($this->scores as $score) { |
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if (null === $score || $result->getPriority() > $score->getPriority()) { |
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break; |
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} |
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$pos++; |
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} |
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return $pos; |
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} |
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/** |
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* Inserts the result at a given position and shifts the lower elements. |
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* |
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* @param ResultInterface $result The result for a file. |
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* @param integer $position The position where the result must be inserted. |
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*/ |
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private function insertAt(ResultInterface $result, int $position): void |
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{ |
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for ($i = $this->scores->getSize() - 1; $i > $position; $i--) { |
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$this->scores[$i] = $this->scores[$i - 1]; |
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} |
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$this->scores[$position] = $result; |
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} |
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} |
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bmitch /
churn-php
