✏️ Editing: SubscribersFinder.php Writable

<?php // phpcs:ignore SlevomatCodingStandard.TypeHints.DeclareStrictTypes.DeclareStrictTypesMissing

namespace MailPoet\Segments;

if (!defined('ABSPATH')) exit;

use MailPoet\Entities\ScheduledTaskEntity;
use MailPoet\Entities\ScheduledTaskSubscriberEntity;
use MailPoet\Entities\SegmentEntity;
use MailPoet\Entities\SubscriberEntity;
use MailPoet\Entities\SubscriberSegmentEntity;
use MailPoet\InvalidStateException;
use MailPoetVendor\Doctrine\DBAL\ArrayParameterType;
use MailPoetVendor\Doctrine\DBAL\ParameterType;
use MailPoetVendor\Doctrine\ORM\EntityManager;

class SubscribersFinder {

/** @var SegmentSubscribersRepository  */
  private $segmentSubscriberRepository;

/** @var SegmentsRepository */
  private $segmentsRepository;

/** @var EntityManager */
  private $entityManager;

public function __construct(
    SegmentSubscribersRepository $segmentSubscriberRepository,
    SegmentsRepository $segmentsRepository,
    EntityManager $entityManager
  ) {
    $this->segmentSubscriberRepository = $segmentSubscriberRepository;
    $this->segmentsRepository = $segmentsRepository;
    $this->entityManager = $entityManager;
  }

/**
   * @return array
   * @throws InvalidStateException
   */
  public function findSubscribersInSegments($subscribersToProcessIds, $newsletterSegmentsIds, ?int $filterSegmentId = null) {
    $result = [];
    foreach ($newsletterSegmentsIds as $segmentId) {
      $segment = $this->segmentsRepository->findOneById($segmentId);
      if (!$segment instanceof SegmentEntity) {
        continue; // skip deleted segments
      }
      $result = array_merge($result, $this->findSubscribersInSegment($segment, $subscribersToProcessIds));
    }

if (is_int($filterSegmentId)) {
      $filterSegment = $this->segmentsRepository->verifyDynamicSegmentExists($filterSegmentId);
      $idsInFilterSegment = $this->findSubscribersInSegment($filterSegment, $subscribersToProcessIds);
      $result = array_intersect($result, $idsInFilterSegment);
    }

return $this->unique($result);
  }

private function findSubscribersInSegment(SegmentEntity $segment, $subscribersToProcessIds): array {
    try {
      return $this->segmentSubscriberRepository->findSubscribersIdsInSegment((int)$segment->getId(), $subscribersToProcessIds);
    } catch (InvalidStateException $e) {
      return [];
    }
  }

/**
   * @param ScheduledTaskEntity $task
   * @param array<int>    $segmentIds
   *
   * @return void
   */
  public function addSubscribersToTaskFromSegments(ScheduledTaskEntity $task, array $segmentIds, ?int $filterSegmentId = null): void {
    // Prepare subscribers on the DB side for performance reasons
    if (is_int($filterSegmentId)) {
      try {
        $this->segmentsRepository->verifyDynamicSegmentExists($filterSegmentId);
      } catch (InvalidStateException $exception) {
        return;
      }
    }
    $staticSegmentIds = [];
    $dynamicSegmentIds = [];
    foreach ($segmentIds as $segment) {
      $segment = $this->segmentsRepository->findOneById($segment);
      if ($segment instanceof SegmentEntity) {
        if ($segment->isStatic()) {
          $staticSegmentIds[] = (int)$segment->getId();
        } elseif ($segment->getType() === SegmentEntity::TYPE_DYNAMIC) {
          $dynamicSegmentIds[] = (int)$segment->getId();
        }
      }
    }
    $count = 0;
    if (!empty($staticSegmentIds)) {
      $count += $this->addSubscribersToTaskFromStaticSegments($task, $staticSegmentIds, $filterSegmentId);
    }
    if (!empty($dynamicSegmentIds)) {
      $count += $this->addSubscribersToTaskFromDynamicSegments($task, $dynamicSegmentIds, $filterSegmentId);
    }
    if ($count > 0) {
      $this->entityManager->refresh($task);
    }
  }

/**
   * @param ScheduledTaskEntity $task
   * @param array<int> $segmentIds
   *
   * @return int
   */
  private function addSubscribersToTaskFromStaticSegments(ScheduledTaskEntity $task, array $segmentIds, ?int $filterSegmentId = null) {
    $scheduledTaskSubscriberTable = $this->entityManager->getClassMetadata(ScheduledTaskSubscriberEntity::class)->getTableName();
    $subscriberSegmentTable = $this->entityManager->getClassMetadata(SubscriberSegmentEntity::class)->getTableName();
    $subscriberTable = $this->entityManager->getClassMetadata(SubscriberEntity::class)->getTableName();

$connection = $this->entityManager->getConnection();
    $selectQueryBuilder = $connection->createQueryBuilder();
    $selectQueryBuilder
      ->select('DISTINCT :task_id as task_id', 'subscribers.id as subscriber_id', ':processed as processed')
      ->from($subscriberSegmentTable, 'relation')
      ->join('relation', $subscriberTable, 'subscribers', 'subscribers.id = relation.subscriber_id')
      ->where('subscribers.deleted_at IS NULL')
      ->andWhere('subscribers.status = :subscribers_status')
      ->andWhere('relation.status = :relation_status')
      ->andWhere($selectQueryBuilder->expr()->in('relation.segment_id', ':segment_ids'))
      ->setParameter('task_id', $task->getId(), ParameterType::INTEGER)
      ->setParameter('processed', ScheduledTaskSubscriberEntity::STATUS_UNPROCESSED, ParameterType::INTEGER)
      ->setParameter('subscribers_status', SubscriberEntity::STATUS_SUBSCRIBED, ParameterType::STRING)
      ->setParameter('relation_status', SubscriberEntity::STATUS_SUBSCRIBED, ParameterType::STRING)
      ->setParameter('segment_ids', $segmentIds, ArrayParameterType::INTEGER);

if ($filterSegmentId) {
      $filterSegmentSubscriberIds = $this->segmentSubscriberRepository->findSubscribersIdsInSegment($filterSegmentId);
      $selectQueryBuilder
        ->andWhere($selectQueryBuilder->expr()->in('subscribers.id', ':filterSegmentSubscriberIds'))
        ->setParameter('filterSegmentSubscriberIds', $filterSegmentSubscriberIds, ArrayParameterType::INTEGER);
    }

// queryBuilder doesn't support INSERT IGNORE directly
    $sql = "INSERT IGNORE INTO $scheduledTaskSubscriberTable (task_id, subscriber_id, processed) " . $selectQueryBuilder->getSQL();
    $result = $connection->executeQuery($sql, $selectQueryBuilder->getParameters(), $selectQueryBuilder->getParameterTypes());

return (int)$result->rowCount();
  }

/**
   * @param ScheduledTaskEntity $task
   * @param array<int> $segmentIds
   *
   * @return int
   */
  private function addSubscribersToTaskFromDynamicSegments(ScheduledTaskEntity $task, array $segmentIds, ?int $filterSegmentId = null) {
    $count = 0;
    foreach ($segmentIds as $segmentId) {
      $count += $this->addSubscribersToTaskFromDynamicSegment($task, (int)$segmentId, $filterSegmentId);
    }
    return $count;
  }

private function addSubscribersToTaskFromDynamicSegment(ScheduledTaskEntity $task, int $segmentId, ?int $filterSegmentId) {
    $count = 0;
    $subscriberIds = $this->segmentSubscriberRepository->getSubscriberIdsInSegment($segmentId);

if ($filterSegmentId) {
      $filterSegmentSubscriberIds = $this->segmentSubscriberRepository->getSubscriberIdsInSegment($filterSegmentId);
      $subscriberIds = array_intersect($subscriberIds, $filterSegmentSubscriberIds);
    }

if ($subscriberIds) {
      $count += $this->addSubscribersToTaskByIds($task, $subscriberIds);
    }
    return $count;
  }

private function addSubscribersToTaskByIds(ScheduledTaskEntity $task, array $subscriberIds) {
    $scheduledTaskSubscriberTable = $this->entityManager->getClassMetadata(ScheduledTaskSubscriberEntity::class)->getTableName();
    $subscriberTable = $this->entityManager->getClassMetadata(SubscriberEntity::class)->getTableName();

$connection = $this->entityManager->getConnection();

$result = $connection->executeQuery(
      "INSERT IGNORE INTO $scheduledTaskSubscriberTable
       (task_id, subscriber_id, processed)
       SELECT DISTINCT ? as task_id, subscribers.`id` as subscriber_id, ? as processed
       FROM $subscriberTable subscribers
       WHERE subscribers.`deleted_at` IS NULL
       AND subscribers.`status` = ?
       AND subscribers.`id` IN (?)",
      [
        $task->getId(),
        ScheduledTaskSubscriberEntity::STATUS_UNPROCESSED,
        SubscriberEntity::STATUS_SUBSCRIBED,
        $subscriberIds,
      ],
      [
        ParameterType::INTEGER,
        ParameterType::INTEGER,
        ParameterType::STRING,
        ArrayParameterType::INTEGER,
      ]
    );

return $result->rowCount();
  }

private function unique(array $subscriberIds) {
    $result = [];
    foreach ($subscriberIds as $id) {
      $result[$id] = $id;
    }
    return $result;
  }
}

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