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<?php |
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declare( strict_types = 1 ); |
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namespace WMDE\BannerServer\UseCase\BannerSelection; |
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use WMDE\BannerServer\Entity\BannerSelection\Bucket; |
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use WMDE\BannerServer\Entity\BannerSelection\Campaign; |
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use WMDE\BannerServer\Entity\BannerSelection\CampaignCollection; |
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/** |
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* @license GNU GPL v2+ |
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*/ |
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class BannerSelectionUseCase { |
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private $campaignCollection; |
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private $currentCampaign; |
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public function __construct( CampaignCollection $campaignCollection ) { |
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$this->campaignCollection = $campaignCollection; |
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} |
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public function provideBannerRequest( Visitor $visitor ): BannerSelection { |
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if ( $visitor->hasDonated() || |
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$this->getCurrentCampaign() === null || |
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$this->getCurrentCampaign()->impressionThresholdReached( $visitor->getTotalImpressionCount() ) ) { |
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return BannerSelection::createEmptySelection( $visitor ); |
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} |
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$visitorBucket = $this->getCurrentCampaign()->selectBucket( |
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$visitor->getBucketIdentifier(), |
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[ self::class, 'selectRandomBucket' ] |
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); |
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return BannerSelection::createBannerSelection( |
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$visitorBucket->getBanner( $visitor->getTotalImpressionCount() ), |
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new Visitor( 1, $visitorBucket->getIdentifier(), false ), |
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new \DateTime() |
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); |
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} |
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private function getCurrentCampaign(): ?Campaign { |
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if ( $this->currentCampaign === null ) { |
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$this->currentCampaign = $this->campaignCollection->getCampaign( new \DateTime() ); |
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} |
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return $this->currentCampaign; |
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} |
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public static function selectRandomBucket( Bucket ...$buckets ): Bucket { |
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return $buckets[random_int( 0, count( $buckets ) )]; |
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} |
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} |
wmde /
banner-server
