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Edit File: Bounce.php

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

namespace MailPoet\Cron\Workers;

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

use MailPoet\Entities\NewsletterEntity;
use MailPoet\Entities\ScheduledTaskEntity;
use MailPoet\Entities\ScheduledTaskSubscriberEntity;
use MailPoet\Entities\StatisticsBounceEntity;
use MailPoet\Entities\SubscriberEntity;
use MailPoet\Mailer\Mailer;
use MailPoet\Newsletter\Sending\ScheduledTaskSubscribersRepository;
use MailPoet\Newsletter\Sending\SendingQueuesRepository;
use MailPoet\Services\Bridge;
use MailPoet\Services\Bridge\API;
use MailPoet\Settings\SettingsController;
use MailPoet\Statistics\StatisticsBouncesRepository;
use MailPoet\Subscribers\SubscribersRepository;
use MailPoet\Tasks\Subscribers\BatchIterator;
use MailPoetVendor\Carbon\Carbon;

class Bounce extends SimpleWorker {
  const TASK_TYPE = 'bounce';
  const BATCH_SIZE = 100;

const BOUNCED_HARD = 'hard';
  const BOUNCED_SOFT = 'soft';
  const NOT_BOUNCED = null;

public $api;

/** @var SettingsController */
  private $settings;

/** @var Bridge */
  private $bridge;

/** @var SubscribersRepository */
  private $subscribersRepository;

/** @var SendingQueuesRepository */
  private $sendingQueuesRepository;

/** @var StatisticsBouncesRepository */
  private $statisticsBouncesRepository;

/** @var ScheduledTaskSubscribersRepository */
  private $scheduledTaskSubscribersRepository;

public function __construct(
    SettingsController $settings,
    SubscribersRepository $subscribersRepository,
    SendingQueuesRepository $sendingQueuesRepository,
    StatisticsBouncesRepository $statisticsBouncesRepository,
    ScheduledTaskSubscribersRepository $scheduledTaskSubscribersRepository,
    Bridge $bridge
  ) {
    $this->settings = $settings;
    $this->bridge = $bridge;
    parent::__construct();
    $this->subscribersRepository = $subscribersRepository;
    $this->sendingQueuesRepository = $sendingQueuesRepository;
    $this->statisticsBouncesRepository = $statisticsBouncesRepository;
    $this->scheduledTaskSubscribersRepository = $scheduledTaskSubscribersRepository;
  }

public function init() {
    if (!$this->api) {
      $this->api = new API($this->settings->get(Mailer::MAILER_CONFIG_SETTING_NAME)['mailpoet_api_key']);
    }
  }

public function checkProcessingRequirements() {
    return $this->bridge->isMailpoetSendingServiceEnabled();
  }

public function prepareTaskStrategy(ScheduledTaskEntity $task, $timer) {
    $this->scheduledTaskSubscribersRepository->createSubscribersForBounceWorker($task);

if (!$this->scheduledTaskSubscribersRepository->countBy(['task' => $task, 'processed' => ScheduledTaskSubscriberEntity::STATUS_UNPROCESSED])) {
      $this->scheduledTaskSubscribersRepository->deleteByScheduledTask($task);
      return false;
    }
    return true;
  }

public function processTaskStrategy(ScheduledTaskEntity $task, $timer) {
    $subscriberBatches = new BatchIterator($task->getId(), self::BATCH_SIZE);

if (count($subscriberBatches) === 0) {
      $this->scheduledTaskSubscribersRepository->deleteByScheduledTask($task);
      return true; // mark completed
    }

/** @var int[] $subscribersToProcessIds - it's required for PHPStan */
    foreach ($subscriberBatches as $subscribersToProcessIds) {
      // abort if execution limit is reached
      $this->cronHelper->enforceExecutionLimit($timer);

$subscriberEmails = $this->subscribersRepository->getUndeletedSubscribersEmailsByIds($subscribersToProcessIds);
      $subscriberEmails = array_column($subscriberEmails, 'email');

$this->processEmails($task, $subscriberEmails);

$this->scheduledTaskSubscribersRepository->updateProcessedSubscribers($task, $subscribersToProcessIds);
    }

return true;
  }

public function processEmails(ScheduledTaskEntity $task, array $subscriberEmails) {
    $checkedEmails = $this->api->checkBounces($subscriberEmails);
    $this->processApiResponse($task, (array)$checkedEmails);
  }

public function processApiResponse(ScheduledTaskEntity $task, array $checkedEmails) {
    $previousTask = $this->findPreviousTask($task);
    foreach ($checkedEmails as $email) {
      if (!isset($email['address'], $email['bounce'])) {
        continue;
      }
      if ($email['bounce'] === self::BOUNCED_HARD) {
        $subscriber = $this->subscribersRepository->findOneBy(['email' => $email['address']]);
        if (!$subscriber instanceof SubscriberEntity) continue;
        $subscriber->setStatus(SubscriberEntity::STATUS_BOUNCED);
        $this->saveBouncedStatistics($subscriber, $task, $previousTask);
      }
    }
    $this->subscribersRepository->flush();
  }

public function getNextRunDate() {
    $date = Carbon::now()->millisecond(0);
    return $date->startOfDay()
      ->addDay()
      ->addHours(rand(0, 5))
      ->addMinutes(rand(0, 59))
      ->addSeconds(rand(0, 59));
  }

private function findPreviousTask(ScheduledTaskEntity $task): ?ScheduledTaskEntity {
    return $this->scheduledTasksRepository->findPreviousTask($task);
  }

private function saveBouncedStatistics(SubscriberEntity $subscriber, ScheduledTaskEntity $task, ?ScheduledTaskEntity $previousTask): void {
    $dateFrom = null;
    if ($previousTask instanceof ScheduledTaskEntity) {
      $dateFrom = $previousTask->getScheduledAt();
    }
    $queues = $this->sendingQueuesRepository->findAllForSubscriberSentBetween($subscriber, $task->getScheduledAt(), $dateFrom);
    foreach ($queues as $queue) {
      $newsletter = $queue->getNewsletter();
      if ($newsletter instanceof NewsletterEntity) {
        $statistics = new StatisticsBounceEntity($newsletter, $queue, $subscriber);
        $this->statisticsBouncesRepository->persist($statistics);
      }
    }
  }
}

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