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<?php |
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declare(strict_types=1); |
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/** |
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* Created by PhpStorm. |
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* User: benedikt |
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* Date: 1/7/18 |
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* Time: 9:22 PM |
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*/ |
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namespace Tfboe\FmLib\Service\RankingSystem; |
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use Tfboe\FmLib\Entity\Helpers\TournamentHierarchyInterface; |
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/** |
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* Class EntityComparerByTimeStartTimeAndLocalIdentifier |
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* @package Tfboe\FmLib\Service\RankingSystemListService |
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*/ |
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class EntityComparerByTimeStartTimeAndLocalIdentifier implements EntityComparerInterface |
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{ |
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//<editor-fold desc="Fields"> |
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/** @var TimeServiceInterface */ |
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private $timeService; |
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//</editor-fold desc="Fields"> |
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//<editor-fold desc="Constructor"> |
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/** |
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* EntityComparerByTimeStartTimeAndLocalIdentifier constructor. |
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* @param TimeServiceInterface $timeService |
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*/ |
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public function __construct(TimeServiceInterface $timeService) |
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{ |
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$this->timeService = $timeService; |
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} |
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//</editor-fold desc="Constructor"> |
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//<editor-fold desc="Public Methods"> |
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/** |
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* @inheritDoc |
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*/ |
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public function compareEntities(TournamentHierarchyInterface $entity1, TournamentHierarchyInterface $entity2): int |
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{ |
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$tmpE1 = $entity1; |
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$tmpE2 = $entity2; |
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while ($tmpE1 !== null && $tmpE2 !== null && $tmpE1->getId() !== $tmpE2->getId()) { |
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$comparison = $this->compareEntityTimes($tmpE1, $tmpE2); |
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if ($comparison !== 0) { |
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return $comparison; |
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} |
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$tmpE1 = $tmpE1->getParent(); |
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$tmpE2 = $tmpE2->getParent(); |
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} |
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return $this->compareLocalIdentifiersWithinTournament($entity1, $entity2); |
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} |
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//</editor-fold desc="Public Methods"> |
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//<editor-fold desc="Protected Methods"> |
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/** |
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* Compares the times of the two entities using the time array and using their start times |
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* @param TournamentHierarchyInterface $entity1 the first entity to compare |
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* @param TournamentHierarchyInterface $entity2 the second entity to compare |
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* @return int returns -1 if the relevant times of entity1 are before the relevant times of entity2, 1 if the times of |
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* entity2 are before the times of entity1 and 0 if they have the same times |
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*/ |
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protected function compareEntityTimes(TournamentHierarchyInterface $entity1, |
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TournamentHierarchyInterface $entity2) |
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{ |
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$time1 = $this->timeService->getTime($entity1); |
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$time2 = $this->timeService->getTime($entity2); |
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if ($time1 < $time2) { |
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return -1; |
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} else if ($time1 > $time2) { |
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return 1; |
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} |
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if ($entity1->getStartTime() !== null && $entity2->getStartTime() !== null) { |
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if ($entity1->getStartTime() < $entity2->getStartTime()) { |
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return -1; |
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} else if ($entity1->getStartTime() > $entity2->getStartTime()) { |
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return 1; |
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} |
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} |
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return 0; |
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} |
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/** |
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* Compares the local identifiers of the predecessors of the given entities, beginning from the tournament level |
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* @param TournamentHierarchyInterface $entity1 the first entity to compare |
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* @param TournamentHierarchyInterface $entity2 the second entity to compare |
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* @return int returns -1 if the first predecessor with a lower local identifier is of entity1, 1 if it is of entity2 |
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* and 0 if the two entities are equal (<=> all predecessors have same local identifiers) |
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*/ |
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protected function compareLocalIdentifiersWithinTournament(TournamentHierarchyInterface $entity1, |
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TournamentHierarchyInterface $entity2) |
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{ |
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//compare unique identifiers within tournament |
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$predecessors1 = $this->getPredecessors($entity1); |
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$predecessors2 = $this->getPredecessors($entity2); |
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for ($i = count($predecessors1) - 1; $i >= 0; $i--) { |
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if ($predecessors1[$i]->getLocalIdentifier() !== $predecessors2[$i]->getLocalIdentifier()) { |
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return $predecessors1[$i]->getLocalIdentifier() <=> $predecessors2[$i]->getLocalIdentifier(); |
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} |
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} |
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//the two entities are equal |
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return 0; |
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} |
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//</editor-fold desc="Protected Methods"> |
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//<editor-fold desc="Private Methods"> |
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/** |
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* Gets a list of all predecessors of the given entity $entity (inclusive $entity itself). |
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* @param TournamentHierarchyInterface $entity the entity for which to get the predecessors |
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* @return TournamentHierarchyInterface[] the predecessors of $entity inclusive $entity |
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*/ |
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private function getPredecessors(TournamentHierarchyInterface $entity): array |
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{ |
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$res = []; |
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while ($entity !== null) { |
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$res[] = $entity; |
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$entity = $entity->getParent(); |
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} |
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return $res; |
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} |
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//</editor-fold desc="Private Methods"> |
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} |
tfboe /
fm-lib
