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Edit File: AbandonedCart.php

<?php declare(strict_types = 1);

namespace MailPoet\AutomaticEmails\WooCommerce\Events;

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

use MailPoet\AutomaticEmails\WooCommerce\WooCommerce as WooCommerceEmail;
use MailPoet\Entities\SubscriberEntity;
use MailPoet\Newsletter\Scheduler\AutomaticEmailScheduler;
use MailPoet\Statistics\Track\SubscriberActivityTracker;
use MailPoet\Statistics\Track\SubscriberCookie;
use MailPoet\Subscribers\SubscribersRepository;
use MailPoet\WooCommerce\Helper as WooCommerceHelper;
use MailPoet\WP\Functions as WPFunctions;

class AbandonedCart {
  const SLUG = 'woocommerce_abandoned_shopping_cart';
  const TASK_META_NAME = 'cart_product_ids';

const HOOK_SCHEDULE = 'mailpoet_abandoned_cart_schedule';
  const HOOK_RE_SCHEDULE = 'mailpoet_abandoned_cart_reschedule';
  const HOOK_CANCEL = 'mailpoet_abandoned_cart_cancel';

/** @var WPFunctions */
  private $wp;

/** @var WooCommerceHelper */
  private $wooCommerceHelper;

/** @var SubscriberCookie */
  private $subscriberCookie;

/** @var AutomaticEmailScheduler */
  private $scheduler;

/** @var SubscriberActivityTracker */
  private $subscriberActivityTracker;

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

/** @var bool */
  private $loadSavedCartAfterLogin;

public function __construct(
    WPFunctions $wp,
    WooCommerceHelper $wooCommerceHelper,
    SubscriberCookie $subscriberCookie,
    SubscriberActivityTracker $subscriberActivityTracker,
    AutomaticEmailScheduler $scheduler,
    SubscribersRepository $subscribersRepository
  ) {
    $this->wp = $wp;
    $this->wooCommerceHelper = $wooCommerceHelper;
    $this->subscriberCookie = $subscriberCookie;
    $this->subscriberActivityTracker = $subscriberActivityTracker;
    $this->scheduler = $scheduler;
    $this->subscribersRepository = $subscribersRepository;
  }

public function getEventDetails() {
    return [
      'slug' => self::SLUG,
      'title' => _x('Abandoned Shopping Cart', 'This is the name of a type of automatic email for ecommerce. Those emails are sent automatically when a customer adds product to his shopping cart but never complete the checkout process.', 'mailpoet'),
      'description' => __('Send an email to logged-in visitors who have items in their shopping carts but left your website without checking out. Can convert up to 5% of abandoned carts.', 'mailpoet'),
      'listingScheduleDisplayText' => _x('Send the email when a customer abandons their cart.', 'Description of Abandoned Shopping Cart email', 'mailpoet'),
      'afterDelayText' => __('after abandoning the cart', 'mailpoet'),
      'badge' => [
        'text' => __('Must-have', 'mailpoet'),
        'style' => 'red',
      ],
      'timeDelayValues' => [
        'minutes' => [
          'text' => __('minute(s)', 'mailpoet'),
          'displayAfterTimeNumberField' => true,
        ],
        'hours' => [
          'text' => __('hour(s)', 'mailpoet'),
          'displayAfterTimeNumberField' => true,
        ],
        'days' => [
          'text' => __('day(s)', 'mailpoet'),
          'displayAfterTimeNumberField' => true,
        ],
        'weeks' => [
          'text' => __('week(s)', 'mailpoet'),
          'displayAfterTimeNumberField' => true,
        ],
      ],
      'defaultAfterTimeType' => 'minutes',
      'schedulingReadMoreLink' => [
        'link' => 'https://www.mailpoet.com/blog/abandoned-cart-woocommerce',
        'text' => __('We recommend setting up 3 abandoned cart emails. Here’s why.', 'mailpoet'),
      ],
    ];
  }

public function init() {
    if (!$this->wooCommerceHelper->isWooCommerceActive()) {
      return;
    }

// item added to cart (not fired on quantity changes)
    $this->wp->addAction(
      'woocommerce_add_to_cart',
      [$this, 'handleCartChange'],
      10
    );

// item removed from cart (not fired on quantity changes, not even change to zero)
    $this->wp->addAction(
      'woocommerce_cart_item_removed',
      [$this, 'handleCartChange'],
      10
    );

// item quantity updated (not fired when quantity updated to zero)
    $this->wp->addAction(
      'woocommerce_after_cart_item_quantity_update',
      [$this, 'handleCartChange'],
      10
    );

// item quantity set to zero
    $this->wp->addAction(
      'woocommerce_remove_cart_item',
      [$this, 'handleCartChange'],
      10
    );

// cart emptied (not called when all items removed)
    $this->wp->addAction(
      'woocommerce_cart_emptied',
      [$this, 'handleCartChange'],
      10
    );

// undo removal of item from cart or cart emptying (does not fire any other cart change hook)
    $this->wp->addAction(
      'woocommerce_cart_item_restored',
      [$this, 'handleCartChange'],
      10
    );

// we should handle loading cart from session if user logs in
    $this->wp->addAction(
      'woocommerce_load_cart_from_session',
      [$this, 'handleUserLogin'],
      10
    );

// cart loaded from session (only processed after login, not on every page load)
    $this->wp->addAction(
      'woocommerce_cart_loaded_from_session',
      [$this, 'handleCartChangeOnLogin'],
      10
    );

$this->subscriberActivityTracker->registerCallback(
      'mailpoet_abandoned_cart',
      [$this, 'handleSubscriberActivity']
    );
  }

public function handleCartChange() {
    $cart = $this->wooCommerceHelper->WC()->cart;

$currentAction = current_action();
    if ($currentAction !== 'woocommerce_cart_emptied' && $cart && !$cart->is_empty()) {
      $this->scheduleAbandonedCartEmail($this->getCartProductIds($cart));
    } else {
      $this->cancelAbandonedCartEmail();
    }
  }

public function handleUserLogin() {
    $wpUserId = $this->wp->getCurrentUserId();
    if (!$wpUserId) {
      return false;
    }
    $this->loadSavedCartAfterLogin = (bool)$this->wp->getUserMeta($wpUserId, '_woocommerce_load_saved_cart_after_login', true);
  }

public function handleCartChangeOnLogin() {
    if (!$this->loadSavedCartAfterLogin) {
      return false;
    }
    $this->handleCartChange();
  }

public function handleSubscriberActivity(SubscriberEntity $subscriber) {
    // on subscriber activity on site reschedule all currently scheduled (not yet sent) emails for given subscriber
    // (it tracks at most once per minute to avoid processing many calls at the same time, i.e. AJAX)
    $this->rescheduleAbandonedCartEmail($subscriber);
  }

private function getCartProductIds($cart) {
    $cartItems = $cart->get_cart() ?: [];
    return array_column($cartItems, 'product_id');
  }

private function scheduleAbandonedCartEmail(array $cartProductIds = []) {
    $subscriber = $this->getSubscriber();
    if (!$subscriber) {
      return;
    }

$this->wp->doAction(self::HOOK_SCHEDULE, $subscriber, $cartProductIds);
    $meta = [self::TASK_META_NAME => $cartProductIds];
    $this->scheduler->scheduleOrRescheduleAutomaticEmail(WooCommerceEmail::SLUG, self::SLUG, $subscriber, $meta);
  }

private function rescheduleAbandonedCartEmail(SubscriberEntity $subscriber) {
    $this->wp->doAction(self::HOOK_RE_SCHEDULE, $subscriber);
    $this->scheduler->rescheduleAutomaticEmail(WooCommerceEmail::SLUG, self::SLUG, $subscriber);
  }

private function cancelAbandonedCartEmail() {
    $subscriber = $this->getSubscriber();
    if (!$subscriber) {
      return;
    }
    $this->wp->doAction(self::HOOK_CANCEL, $subscriber);
    $this->scheduler->cancelAutomaticEmail(WooCommerceEmail::SLUG, self::SLUG, $subscriber);
  }

private function getSubscriber(): ?SubscriberEntity {
    $wpUser = $this->wp->wpGetCurrentUser();
    if ($wpUser->exists()) {
      return $this->subscribersRepository->findOneBy(['wpUserId' => $wpUser->ID]);
    }

// if user not logged in, try to find subscriber by cookie
    $subscriberId = $this->subscriberCookie->getSubscriberId();
    if ($subscriberId) {
      return $this->subscribersRepository->findOneById($subscriberId);
    }
    return null;
  }
}

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