diff --git a/payment/uc_payment/src/Event/PaymentEnteredEvent.php b/payment/uc_payment/src/Event/PaymentEnteredEvent.php
new file mode 100644
index 0000000..bfddc34
--- /dev/null
+++ b/payment/uc_payment/src/Event/PaymentEnteredEvent.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Drupal\uc_payment\Event;
+
+use Drupal\Core\Session\AccountInterface;
+use Drupal\uc_order\OrderInterface;
+use Symfony\Component\EventDispatcher\Event;
+
+/**
+ * Event that is fired when payment is entered for an order.
+ */
+class PaymentEnteredEvent extends Event {
+
+  const EVENT_NAME = 'uc_payment_entered';
+
+  /**
+   * The order.
+   *
+   * @var \Drupal\uc_order\OrderInterface
+   */
+  public $order;
+
+  /**
+   * The user account.
+   *
+   * @var \Drupal\Core\Session\AccountInterface
+   */
+  public $account;
+
+  /**
+   * Constructs the object.
+   *
+   * @param \Drupal\uc_order\OrderInterface $uc_order
+   *   The order object.
+   * @param \Drupal\Core\Session\AccountInterface $account
+   *   The user account.
+   */
+  public function __construct(OrderInterface $uc_order, AccountInterface $account) {
+    $this->order = $uc_order;
+    $this->account = $account;
+  }
+
+}
diff --git a/payment/uc_payment/uc_payment.rules.events.yml b/payment/uc_payment/uc_payment.rules.events.yml
new file mode 100644
index 0000000..ae800ac
--- /dev/null
+++ b/payment/uc_payment/uc_payment.rules.events.yml
@@ -0,0 +1,10 @@
+uc_payment_entered:
+  label: 'A payment gets entered for an order'
+  category: 'Payment'
+  context:
+    order:
+      type: 'entity:uc_order'
+      label: 'Order'
+    account:
+      type: 'entity:user'
+      label: 'User'
diff --git a/payment/uc_payment/uc_payment.rules.inc b/payment/uc_payment/uc_payment.rules.inc
deleted file mode 100644
index 4bcaae3..0000000
--- a/payment/uc_payment/uc_payment.rules.inc
+++ /dev/null
@@ -1,100 +0,0 @@
-<?php
-
-/**
- * @file
- * Rules definitions.
- */
-
-/**
- * Implements hook_rules_event_info().
- */
-function uc_payment_rules_event_info() {
-  $events['uc_payment_entered'] = array(
-    'label' => t('A payment gets entered for an order'),
-    'group' => t('Payment'),
-    'variables' => array(
-      'order' => array(
-        'type' => 'uc_order',
-        'label' => t('Order'),
-      ),
-      'account' => array(
-        'type' => 'user',
-        'label' => t('User'),
-      ),
-    ),
-  );
-
-  return $events;
-}
-
-/**
- * Implements hook_rules_condition_info().
- */
-function uc_payment_rules_condition_info() {
-  $conditions['uc_payment_condition_order_balance'] = array(
-    'label' => t('Check the order balance'),
-    'group' => t('Payment'),
-    'base' => 'uc_payment_condition_order_balance',
-    'parameter' => array(
-      'order' => array(
-        'type' => 'uc_order',
-        'label' => t('Order'),
-        'restriction' => 'selector',
-      ),
-      'balance_comparison' => array(
-        'type' => 'text',
-        'label' => t('Operator'),
-        'options list' => 'uc_payment_condition_balance_options',
-        'restriction' => 'input',
-      ),
-      'include_authorizations' => array(
-        'type' => 'boolean',
-        'label' => t('Include authorizations?'),
-        'description' => t('Should "authorization only" credit card transactions be used in calculating the order balance?'),
-        'restriction' => 'input',
-        'optional' => TRUE,
-        'default value' => FALSE,
-      ),
-    ),
-  );
-
-  return $conditions;
-}
-
-/**
- * Condition: Check the current order balance.
- */
-function uc_payment_condition_order_balance($order, $balance_comparison, $include_authorizations) {
-  $balance = uc_payment_balance($order);
-  if ($include_authorizations) {
-    foreach ((array) $order->data->cc_txns['authorizations'] as $auth_id => $data) {
-      $balance -= $data['amount'];
-    }
-  }
-
-  switch ($balance_comparison) {
-    case 'less':
-      return $balance < 0;
-    case 'less_equal':
-      return $balance <= 0.01;
-    case 'equal':
-      return $balance < 0.01 && $balance > -0.01;
-    case 'greater':
-      return $balance >= 0.01;
-  }
-}
-
-/**
- * Returns balance options.
- */
-function uc_payment_condition_balance_options() {
-  $zero = array('!zero' => uc_currency_format(0));
-  $options = array(
-    'less' => t('Balance is less than !zero.', $zero),
-    'less_equal' => t('Balance is less than or equal to !zero.', $zero),
-    'equal' => t('Balance is equal to !zero.', $zero),
-    'greater' => t('Balance is greater than !zero.', $zero),
-  );
-
-  return $options;
-}
diff --git a/shipping/uc_fulfillment/src/Event/ShipmentSaveEvent.php b/shipping/uc_fulfillment/src/Event/ShipmentSaveEvent.php
new file mode 100644
index 0000000..ede17ee
--- /dev/null
+++ b/shipping/uc_fulfillment/src/Event/ShipmentSaveEvent.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Drupal\uc_fulfillment\Event;
+
+use Drupal\uc_fulfillment\Shipment;
+use Drupal\uc_order\OrderInterface;
+use Symfony\Component\EventDispatcher\Event;
+
+/**
+ * Event that is fired when a shipment is saved.
+ */
+class ShipmentSaveEvent extends Event {
+
+  const EVENT_NAME = 'uc_shipment_save';
+
+  /**
+   * The order.
+   *
+   * @var \Drupal\uc_order\OrderInterface
+   */
+  public $order;
+
+  /**
+   * The expiration.
+   *
+   * @var \Drupal\uc_fulfillment\Shipment
+   */
+  public $shipment;
+
+  /**
+   * Constructs the object.
+   *
+   * @param \Drupal\uc_order\OrderInterface $uc_order
+   *   The order object.
+   * @param \Drupal\uc_fulfillment\Shipment $shipment
+   *   The shipment.
+   */
+  public function __construct(OrderInterface $uc_order, Shipment $shipment) {
+    $this->order = $uc_order;
+    $this->shipment = $shipment;
+  }
+
+}
diff --git a/shipping/uc_fulfillment/src/Shipment.php b/shipping/uc_fulfillment/src/Shipment.php
index 31c459b..2f59ea6 100644
--- a/shipping/uc_fulfillment/src/Shipment.php
+++ b/shipping/uc_fulfillment/src/Shipment.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\uc_fulfillment;
 
+use Drupal\uc_fulfillment\Event\ShipmentSaveEvent;
 use Drupal\uc_order\Entity\Order;
 use Drupal\uc_store\Address;
 use Drupal\uc_store\AddressInterface;
@@ -23,7 +24,7 @@ class Shipment implements ShipmentInterface {
    *
    * @var int
    */
-  protected $order_id;
+  protected $orderId;
 
   /**
    * Name of the shipping method.
@@ -54,7 +55,7 @@ class Shipment implements ShipmentInterface {
   protected $transaction_id = '';
 
   /**
-   * Shipment tracking number,
+   * Shipment tracking number.
    *
    * @var string
    */
@@ -100,7 +101,7 @@ class Shipment implements ShipmentInterface {
    *
    * @var \Drupal\uc_fulfillment\Package[]
    */
-  protected $packages = array();
+  protected $packages = [];
 
   /**
    * Shipment origin address.
@@ -126,8 +127,8 @@ class Shipment implements ShipmentInterface {
   /**
    * {@inheritdoc}
    */
-  public function setOrderId($order_id) {
-    $this->order_id = $order_id;
+  public function setOrderId($orderId) {
+    $this->orderId = $orderId;
     return $this;
   }
 
@@ -135,7 +136,7 @@ class Shipment implements ShipmentInterface {
    * {@inheritdoc}
    */
   public function getOrderId() {
-    return $this->order_id;
+    return $this->orderId;
   }
 
   /**
@@ -361,15 +362,15 @@ class Shipment implements ShipmentInterface {
   /**
    * Loads a shipment and its packages for a given order.
    *
-   * @param array $order_id
+   * @param int $orderId
    *   An order ID.
    *
    * @return \Drupal\uc_fulfillment\Shipment[]
    *   Array of shipment objects for the given order.
    */
-  public static function loadByOrder($order_id) {
-    $shipments = array();
-    $result = db_query('SELECT sid FROM {uc_shipments} WHERE order_id = :id', [':id' => $order_id]);
+  public static function loadByOrder($orderId) {
+    $shipments = [];
+    $result = db_query('SELECT sid FROM {uc_shipments} WHERE order_id = :id', [':id' => $orderId]);
     while ($shipment_id = $result->fetchField()) {
       $shipments[] = Shipment::load($shipment_id);
     }
@@ -391,8 +392,8 @@ class Shipment implements ShipmentInterface {
     $result = db_query('SELECT * FROM {uc_shipments} WHERE sid = :sid', [':sid' => $shipment_id]);
     if ($assoc = $result->fetchAssoc()) {
       $shipment = Shipment::create();
-      $origin_fields = array();
-      $destination_fields = array();
+      $origin_fields = [];
+      $destination_fields = [];
 
       foreach ($assoc as $key => $value) {
         $subkey = substr($key, 0, 2);
@@ -411,13 +412,13 @@ class Shipment implements ShipmentInterface {
       $shipment->setDestination(Address::create($destination_fields));
 
       $result2 = db_query('SELECT package_id FROM {uc_packages} WHERE sid = :sid', [':sid' => $shipment_id]);
-      $packages = array();
+      $packages = [];
       foreach ($result2 as $package) {
         $packages[$package->package_id] = Package::load($package->package_id);
       }
       $shipment->setPackages($packages);
 
-      $extra = \Drupal::moduleHandler()->invokeAll('uc_shipment', array('load', $shipment));
+      $extra = \Drupal::moduleHandler()->invokeAll('uc_shipment', ['load', $shipment]);
       if (is_array($extra)) {
         foreach ($extra as $key => $value) {
           $shipment->$key = $value;
@@ -435,7 +436,7 @@ class Shipment implements ShipmentInterface {
     $this->changed = time();
 
     // Break Address objects into individual fields for saving.
-    $fields = array();
+    $fields = [];
     if (isset($this->origin)) {
       foreach ($this->origin as $field => $value) {
         $field = 'o_' . $field;
@@ -450,8 +451,8 @@ class Shipment implements ShipmentInterface {
     }
 
     // Yuck.
-    $fields += array(
-      'order_id' => $this->order_id,
+    $fields += [
+      'order_id' => $this->orderId,
       'shipping_method' => $this->shipping_method,
       'accessorials' => $this->accessorials,
       'carrier' => $this->carrier,
@@ -462,7 +463,7 @@ class Shipment implements ShipmentInterface {
       'cost' => $this->cost,
       'currency' => $this->currency,
       'changed' => $this->changed,
-    );
+    ];
     if (!isset($this->sid)) {
       $this->sid = db_insert('uc_shipments')
         ->fields($fields)
@@ -491,9 +492,12 @@ class Shipment implements ShipmentInterface {
       }
     }
 
-    \Drupal::moduleHandler()->invokeAll('uc_shipment', array('save', $this));
-    $order = Order::load($this->order_id);
-    // rules_invoke_event('uc_shipment_save', $order, $shipment);
+    \Drupal::moduleHandler()->invokeAll('uc_shipment', ['save', $this]);
+    $order = Order::load($this->orderId);
+    // rules_invoke_event('uc_shipment_save', $order, $this);
+    $event = new ShipmentSaveEvent($order, $this);
+    $event_dispatcher = \Drupal::service('event_dispatcher');
+    $event_dispatcher->dispatch(ShipmentSaveEvent::EVENT_NAME, $event);
   }
 
   /**
@@ -501,11 +505,11 @@ class Shipment implements ShipmentInterface {
    */
   public function delete() {
     db_update('uc_packages')
-      ->fields(array(
+      ->fields([
         'sid' => NULL,
         'tracking_number' => NULL,
         'label_image' => NULL,
-      ))
+      ])
       ->condition('sid', $this->sid)
       ->execute();
 
@@ -520,7 +524,7 @@ class Shipment implements ShipmentInterface {
       }
     }
 
-    \Drupal::moduleHandler()->invokeAll('uc_shipment', array('delete', $this));
+    \Drupal::moduleHandler()->invokeAll('uc_shipment', ['delete', $this]);
     drupal_set_message(t('Shipment @id has been deleted.', ['@id' => $this->sid]));
   }
 
diff --git a/shipping/uc_fulfillment/uc_fulfillment.rules.events.yml b/shipping/uc_fulfillment/uc_fulfillment.rules.events.yml
new file mode 100644
index 0000000..eba2cf1
--- /dev/null
+++ b/shipping/uc_fulfillment/uc_fulfillment.rules.events.yml
@@ -0,0 +1,10 @@
+uc_shipment_save:
+  label: 'A shipment is saved'
+  category: 'Fulfillment'
+  context:
+    order:
+      type: 'entity:uc_order'
+      label: 'Order'
+    shipment:
+      type: 'uc_shipment'
+      label: 'Shipment'
diff --git a/uc_cart/src/CartManager.php b/uc_cart/src/CartManager.php
index 71ad2dd..f5d0fbe 100644
--- a/uc_cart/src/CartManager.php
+++ b/uc_cart/src/CartManager.php
@@ -4,6 +4,7 @@ namespace Drupal\uc_cart;
 
 use Drupal\Core\Session\AccountProxyInterface;
 use Drupal\user\Entity\User;
+use Drupal\uc_cart\Event\CheckoutCompleteEvent;
 use Drupal\uc_order\OrderInterface;
 use Symfony\Component\HttpFoundation\Session\SessionInterface;
 
@@ -87,10 +88,15 @@ class CartManager implements CartManagerInterface {
 
       $order->save();
 
-      // Invoke the checkout complete trigger and hook.
+      // Invoke the checkout complete hook.
       $account = $order->getOwner();
-      \Drupal::moduleHandler()->invokeAll('uc_checkout_complete', array($order, $account));
+      \Drupal::moduleHandler()->invokeAll('uc_checkout_complete', [$order, $account]);
+
+      // Trigger the checkout complete event.
       // rules_invoke_event('uc_checkout_complete', $order);
+      $event = new CheckoutCompleteEvent($order);
+      $event_dispatcher = \Drupal::service('event_dispatcher');
+      $event_dispatcher->dispatch(CheckoutCompleteEvent::EVENT_NAME, $event);
     }
 
     $type = $order->data->complete_sale;
@@ -104,17 +110,17 @@ class CartManager implements CartManagerInterface {
     }
 
     $message = \Drupal::config('uc_cart.messages')->get($type);
-    $message = \Drupal::token()->replace($message, array('uc_order' => $order));
+    $message = \Drupal::token()->replace($message, ['uc_order' => $order]);
 
     $variables['!new_username'] = isset($order->data->new_user_name) ? $order->data->new_user_name : '';
     $variables['!new_password'] = isset($order->password) ? $order->password : t('Your password');
     $message = strtr($message, $variables);
 
-    return array(
+    return [
       '#theme' => 'uc_cart_complete_sale',
-      '#message' => array('#markup' => $message),
+      '#message' => ['#markup' => $message],
       '#order' => $order,
-    );
+    ];
   }
 
   /**
@@ -139,14 +145,14 @@ class CartManager implements CartManagerInterface {
 
     // Set up a new user.
     $cart_config = \Drupal::config('uc_cart.settings');
-    $fields = array(
+    $fields = [
       'name' => uc_store_email_to_username($order->getEmail()),
       'mail' => $order->getEmail(),
       'init' => $order->getEmail(),
       'pass' => user_password(),
-      'roles' => array(),
+      'roles' => [],
       'status' => $cart_config->get('new_customer_status_active') ? 1 : 0,
-    );
+    ];
 
     // Override the username, if specified.
     if (isset($order->data->new_user_name)) {
@@ -170,12 +176,12 @@ class CartManager implements CartManagerInterface {
     // Send the customer their account details if enabled.
     if ($cart_config->get('new_customer_email')) {
       $type = $cart_config->get('new_customer_status_active') ? 'register_no_approval_required' : 'register_pending_approval';
-      \Drupal::service('plugin.manager.mail')->mail('user', $type, $order->getEmail(), uc_store_mail_recipient_langcode($order->getEmail()), array('account' => $account), uc_store_email_from());
+      \Drupal::service('plugin.manager.mail')->mail('user', $type, $order->getEmail(), uc_store_mail_recipient_langcode($order->getEmail()), ['account' => $account], uc_store_email_from());
     }
 
     $order->setOwner($account);
     $order->data->new_user_name = $fields['name'];
-    $order->data->complete_sale =  'new_user';
+    $order->data->complete_sale = 'new_user';
   }
 
 }
diff --git a/uc_cart/src/Controller/CheckoutController.php b/uc_cart/src/Controller/CheckoutController.php
index e4e38dd..a7e2b93 100644
--- a/uc_cart/src/Controller/CheckoutController.php
+++ b/uc_cart/src/Controller/CheckoutController.php
@@ -8,6 +8,7 @@ use Drupal\Core\Url;
 use Drupal\uc_cart\CartInterface;
 use Drupal\uc_cart\CartManagerInterface;
 use Drupal\uc_cart\Plugin\CheckoutPaneManager;
+use Drupal\uc_cart\Event\CheckoutStartEvent;
 use Drupal\uc_order\Entity\Order;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\Session\SessionInterface;
@@ -89,8 +90,9 @@ class CheckoutController extends ControllerBase implements ContainerInjectionInt
     if ($this->session->has('cart_order')) {
       $order = $this->loadOrder();
       if ($order) {
-        // Don't use an existing order if it has changed status or owner, or if
-        // there has been no activity for 10 minutes (to prevent identity theft).
+        // To prevent identity theft, don't use an existing order if it has
+        // changed status or owner, or if there has been no activity for 10
+        // minutes.
         if ($order->getStateId() != 'in_checkout' ||
             ($this->currentUser()->isAuthenticated() && $this->currentUser()->id() != $order->getOwnerId()) ||
             $order->getChangedTime() < REQUEST_TIME - CartInterface::CHECKOUT_TIMEOUT) {
@@ -109,7 +111,7 @@ class CheckoutController extends ControllerBase implements ContainerInjectionInt
       }
     }
 
-    // Determine whether the form is being submitted or built for the first time.
+    // Determine if the form is being submitted or built for the first time.
     if (isset($_POST['form_id']) && $_POST['form_id'] == 'uc_cart_checkout_form') {
       // If this is a form submission, make sure the cart order is still valid.
       if (!isset($order)) {
@@ -126,9 +128,9 @@ class CheckoutController extends ControllerBase implements ContainerInjectionInt
       $rebuild = FALSE;
       if (!isset($order)) {
         // Create a new order if necessary.
-        $order = Order::create(array(
+        $order = Order::create([
           'uid' => $this->currentUser()->id(),
-        ));
+        ]);
         $order->save();
         $this->session->set('cart_order', $order->id());
         $rebuild = TRUE;
@@ -149,7 +151,7 @@ class CheckoutController extends ControllerBase implements ContainerInjectionInt
 
       if ($rebuild) {
         // Copy the cart contents to the cart order.
-        $order->products = array();
+        $order->products = [];
         foreach ($items as $item) {
           $order->products[] = $item->toOrderProduct();
         }
@@ -167,9 +169,14 @@ class CheckoutController extends ControllerBase implements ContainerInjectionInt
       return $this->redirect('uc_cart.cart');
     }
 
-    // Trigger the "Customer starts checkout" hook and event.
-    $this->moduleHandler()->invokeAll('uc_cart_checkout_start', array($order));
+    // Invoke the customer starts checkout hook.
+    $this->moduleHandler()->invokeAll('uc_cart_checkout_start', [$order]);
+
+    // Trigger the checkout start event.
     // rules_invoke_event('uc_cart_checkout_start', $order);
+    $event = new CheckoutStartEvent($order);
+    $event_dispatcher = \Drupal::service('event_dispatcher');
+    $event_dispatcher->dispatch(CheckoutStartEvent::EVENT_NAME, $event);
 
     return $this->formBuilder()->getForm('Drupal\uc_cart\Form\CheckoutForm', $order);
   }
@@ -193,7 +200,7 @@ class CheckoutController extends ControllerBase implements ContainerInjectionInt
       return $this->redirect('uc_cart.cart');
     }
 
-    $filter = array('enabled' => FALSE);
+    $filter = ['enabled' => FALSE];
 
     // If the cart isn't shippable, bypass panes with shippable == TRUE.
     if (!$order->isShippable() && $this->config('uc_cart.settings')->get('panes.delivery.settings.delivery_not_shippable')) {
@@ -208,11 +215,11 @@ class CheckoutController extends ControllerBase implements ContainerInjectionInt
       }
     }
 
-    $build = array(
+    $build = [
       '#theme' => 'uc_cart_checkout_review',
       '#panes' => $data,
       '#form' => $this->formBuilder()->getForm('Drupal\uc_cart\Form\CheckoutReviewForm', $order),
-    );
+    ];
 
     $build['#attached']['library'][] = 'uc_cart/uc_cart.styles';
     $build['#attached']['library'][] = 'uc_cart/uc_cart.review.scripts';
diff --git a/uc_cart/src/Event/CheckoutCompleteEvent.php b/uc_cart/src/Event/CheckoutCompleteEvent.php
new file mode 100644
index 0000000..d16b534
--- /dev/null
+++ b/uc_cart/src/Event/CheckoutCompleteEvent.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Drupal\uc_cart\Event;
+
+use Drupal\uc_order\OrderInterface;
+use Symfony\Component\EventDispatcher\Event;
+
+/**
+ * Event that is fired when a user completes checkout.
+ */
+class CheckoutCompleteEvent extends Event {
+
+  const EVENT_NAME = 'uc_checkout_complete';
+
+  /**
+   * The order.
+   *
+   * @var \Drupal\uc_order\OrderInterface
+   */
+  public $order;
+
+  /**
+   * Constructs the object.
+   *
+   * @param \Drupal\uc_order\OrderInterface $uc_order
+   *   The order object.
+   */
+  public function __construct(OrderInterface $uc_order) {
+    $this->order = $uc_order;
+  }
+
+}
diff --git a/uc_cart/src/Event/CheckoutStartEvent.php b/uc_cart/src/Event/CheckoutStartEvent.php
new file mode 100644
index 0000000..1ed3001
--- /dev/null
+++ b/uc_cart/src/Event/CheckoutStartEvent.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Drupal\uc_cart\Event;
+
+use Drupal\uc_order\OrderInterface;
+use Symfony\Component\EventDispatcher\Event;
+
+/**
+ * Event that is fired when a user starts checkout.
+ */
+class CheckoutStartEvent extends Event {
+
+  const EVENT_NAME = 'uc_cart_checkout_start';
+
+  /**
+   * The order.
+   *
+   * @var \Drupal\uc_order\OrderInterface
+   */
+  public $order;
+
+  /**
+   * Constructs the object.
+   *
+   * @param \Drupal\uc_order\OrderInterface $uc_order
+   *   The order object.
+   */
+  public function __construct(OrderInterface $uc_order) {
+    $this->order = $uc_order;
+  }
+
+}
diff --git a/uc_cart/uc_cart.rules.events.yml b/uc_cart/uc_cart.rules.events.yml
new file mode 100644
index 0000000..25a925b
--- /dev/null
+++ b/uc_cart/uc_cart.rules.events.yml
@@ -0,0 +1,15 @@
+uc_cart_checkout_start:
+  label: 'Customer starts checkout'
+  category: 'Cart'
+  context:
+    order:
+      type: 'entity:uc_order'
+      label: 'Order'
+
+uc_cart_checkout_complete:
+  label: 'Customer completes checkout'
+  category: 'Cart'
+  context:
+    order:
+      type: 'entity:uc_order'
+      label: 'Order'
diff --git a/uc_cart/uc_cart.rules.inc b/uc_cart/uc_cart.rules.inc
deleted file mode 100644
index 133d8a7..0000000
--- a/uc_cart/uc_cart.rules.inc
+++ /dev/null
@@ -1,36 +0,0 @@
-<?php
-
-/**
- * @file
- * This file contains the Rules hooks and functions necessary to
- * make the cart related entity, conditions, events, and actions work.
- */
-
-/**
- * Implements hook_rules_event_info().
- */
-function uc_cart_rules_event_info() {
-  $events['uc_checkout_complete'] = array(
-    'label' => t('Customer completes checkout'),
-    'group' => t('Cart'),
-    'variables' => array(
-      'order' => array(
-        'type' => 'uc_order',
-        'label' => t('Order'),
-      ),
-    ),
-  );
-
-  $events['uc_cart_checkout_start'] = array(
-    'label' => t('Customer starts checkout'),
-    'group' => t('Cart'),
-    'variables' => array(
-      'order' => array(
-        'type' => 'uc_order',
-        'label' => t('Order'),
-      ),
-    ),
-  );
-
-  return $events;
-}
diff --git a/uc_file/src/Event/NotifyGrantEvent.php b/uc_file/src/Event/NotifyGrantEvent.php
new file mode 100644
index 0000000..a29e184
--- /dev/null
+++ b/uc_file/src/Event/NotifyGrantEvent.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Drupal\uc_file\Event;
+
+use Drupal\uc_order\OrderInterface;
+use Symfony\Component\EventDispatcher\Event;
+
+/**
+ * Event that is fired when a file download is granted.
+ */
+class NotifyGrantEvent extends Event {
+
+  const EVENT_NAME = 'uc_file_notify_grant';
+
+  /**
+   * The order.
+   *
+   * @var \Drupal\uc_order\OrderInterface
+   */
+  public $order;
+
+  /**
+   * The expiration.
+   *
+   * @var array
+   */
+  public $expiration;
+
+  /**
+   * Constructs the object.
+   *
+   * @param \Drupal\uc_order\OrderInterface $uc_order
+   *   The order object.
+   * @param array $expiration
+   *   The expiration.
+   */
+  public function __construct(OrderInterface $uc_order, array $expiration) {
+    $this->order = $uc_order;
+    $this->expiration = $expiration;
+  }
+
+}
diff --git a/uc_file/uc_file.rules.events.yml b/uc_file/uc_file.rules.events.yml
new file mode 100644
index 0000000..4e855e3
--- /dev/null
+++ b/uc_file/uc_file.rules.events.yml
@@ -0,0 +1,10 @@
+uc_file_notify_grant:
+  label: 'E-mail for granted files'
+  category: 'File downloads'
+  context:
+    order:
+      type: 'entity:uc_order'
+      label: 'Order'
+    expiration:
+      type: 'array'
+      label: 'File expiration'
diff --git a/uc_order/src/Entity/Order.php b/uc_order/src/Entity/Order.php
index 4425ff8..f4b408d 100644
--- a/uc_order/src/Entity/Order.php
+++ b/uc_order/src/Entity/Order.php
@@ -7,6 +7,7 @@ use Drupal\Core\Entity\EntityChangedTrait;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Field\BaseFieldDefinition;
+use Drupal\uc_order\Event\OrderStatusUpdateEvent;
 use Drupal\uc_order\OrderInterface;
 use Drupal\uc_store\Address;
 use Drupal\user\Entity\User;
@@ -55,8 +56,8 @@ class Order extends ContentEntityBase implements OrderInterface {
 
   use EntityChangedTrait;
 
-  public $products = array();
-  public $line_items = array();
+  public $products = [];
+  public $line_items = [];
 
   /**
    * {@inheritdoc}
@@ -139,10 +140,13 @@ class Order extends ContentEntityBase implements OrderInterface {
         (string) t('Order status') => [
           'old' => $this->original->getStatus()->getName(),
           'new' => $this->getStatus()->getName(),
-        ]
+        ],
       ]);
 
       // rules_invoke_event('uc_order_status_update', $this->original, $this);
+      $event = new OrderStatusUpdateEvent($this->original, $this);
+      $event_dispatcher = \Drupal::service('event_dispatcher');
+      $event_dispatcher->dispatch(OrderStatusUpdateEvent::EVENT_NAME, $event);
     }
   }
 
@@ -186,7 +190,6 @@ class Order extends ContentEntityBase implements OrderInterface {
     return $this->get('created')->value;
   }
 
-
   /**
    * {@inheritdoc}
    */
@@ -199,18 +202,18 @@ class Order extends ContentEntityBase implements OrderInterface {
    * {@inheritdoc}
    */
   public function getLineItems() {
-    $items = array();
+    $items = [];
 
     $result = db_query("SELECT * FROM {uc_order_line_items} WHERE order_id = :id", [':id' => $this->id()]);
     foreach ($result as $row) {
-      $items[] = array(
+      $items[] = [
         'line_item_id' => $row->line_item_id,
         'type' => $row->type,
         'title' => $row->title,
         'amount' => $row->amount,
         'weight' => $row->weight,
         'data' => unserialize($row->data),
-      );
+      ];
     }
 
     $line_item_manager = \Drupal::service('plugin.manager.uc_order.line_item');
@@ -219,14 +222,14 @@ class Order extends ContentEntityBase implements OrderInterface {
         $result = $line_item_manager->createInstance($type['id'])->load($this);
         if ($result !== FALSE && is_array($result)) {
           foreach ($result as $line) {
-            $items[] = array(
+            $items[] = [
               'line_item_id' => $line['id'],
               'type' => $type['id'],
               'title' => $line['title'],
               'amount' => $line['amount'],
               'weight' => isset($line['weight']) ? $line['weight'] : $type['weight'],
-              'data' => isset($line['data']) ? $line['data'] : array(),
-            );
+              'data' => isset($line['data']) ? $line['data'] : [],
+            ];
           }
         }
       }
@@ -249,14 +252,14 @@ class Order extends ContentEntityBase implements OrderInterface {
         $result = $line_item_manager->createInstance($item['id'])->display($this);
         if (is_array($result)) {
           foreach ($result as $line) {
-            $line_items[] = array(
+            $line_items[] = [
               'line_item_id' => $line['id'],
               'type' => $item['id'],
               'title' => $line['title'],
               'amount' => $line['amount'],
               'weight' => isset($line['weight']) ? $line['weight'] : $item['weight'],
-              'data' => isset($line['data']) ? $line['data'] : array(),
-            );
+              'data' => isset($line['data']) ? $line['data'] : [],
+            ];
           }
         }
       }
@@ -465,15 +468,15 @@ class Order extends ContentEntityBase implements OrderInterface {
           $entry = (string) $value;
         }
 
-        $markup = array('#markup' => $entry);
+        $markup = ['#markup' => $entry];
 
         db_insert('uc_order_log')
-          ->fields(array(
+          ->fields([
             'order_id' => $this->id(),
             'uid' => \Drupal::currentUser()->id(),
             'changes' => \Drupal::service('renderer')->renderPlain($markup),
             'created' => REQUEST_TIME,
-          ))
+          ])
           ->execute();
       }
     }
@@ -621,7 +624,7 @@ class Order extends ContentEntityBase implements OrderInterface {
     $fields['currency'] = BaseFieldDefinition::create('string')
       ->setLabel(t('Currency'))
       ->setDescription(t('The ISO currency code for the order.'))
-      ->setPropertyConstraints('value', array('Length' => array('max' => 3)))
+      ->setPropertyConstraints('value', ['Length' => ['max' => 3]])
       ->setSetting('default_value', '')
       ->setSetting('max_length', 3);
 
@@ -637,7 +640,7 @@ class Order extends ContentEntityBase implements OrderInterface {
    *   An array of default values.
    */
   public static function getCurrentUserId() {
-    return array(\Drupal::currentUser()->id());
+    return [\Drupal::currentUser()->id()];
   }
 
 }
diff --git a/uc_order/src/Event/OrderStatusEmailUpdateEvent.php b/uc_order/src/Event/OrderStatusEmailUpdateEvent.php
new file mode 100644
index 0000000..6e94037
--- /dev/null
+++ b/uc_order/src/Event/OrderStatusEmailUpdateEvent.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Drupal\uc_order\Event;
+
+use Drupal\uc_order\OrderInterface;
+use Symfony\Component\EventDispatcher\Event;
+
+/**
+ * Event indicating an email notification of order status change was requested.
+ */
+class OrderStatusEmailUpdateEvent extends Event {
+
+  const EVENT_NAME = 'uc_order_status_email_update';
+
+  /**
+   * The order.
+   *
+   * @var \Drupal\uc_order\OrderInterface
+   */
+  public $order;
+
+  /**
+   * Constructs the object.
+   *
+   * @param \Drupal\uc_order\OrderInterface $order
+   *   The order object.
+   */
+  public function __construct(OrderInterface $order) {
+    $this->order = $order;
+  }
+
+}
diff --git a/uc_order/src/Event/OrderStatusUpdateEvent.php b/uc_order/src/Event/OrderStatusUpdateEvent.php
new file mode 100644
index 0000000..566674b
--- /dev/null
+++ b/uc_order/src/Event/OrderStatusUpdateEvent.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Drupal\uc_order\Event;
+
+use Drupal\uc_order\OrderInterface;
+use Symfony\Component\EventDispatcher\Event;
+
+/**
+ * Event that is fired when an order's status is changed.
+ */
+class OrderStatusUpdateEvent extends Event {
+
+  const EVENT_NAME = 'uc_order_status_update';
+
+  /**
+   * The original order.
+   *
+   * @var \Drupal\uc_order\OrderInterface
+   */
+  public $originalOrder;
+
+  /**
+   * The new order.
+   *
+   * @var \Drupal\uc_order\OrderInterface
+   */
+  public $order;
+
+  /**
+   * Constructs the object.
+   *
+   * @param \Drupal\uc_order\OrderInterface $originalOrder
+   *   The order object.
+   * @param \Drupal\uc_order\OrderInterface $order
+   *   The order object.
+   */
+  public function __construct(OrderInterface $originalOrder, OrderInterface $order) {
+    $this->originalOrder = $originalOrder;
+    $this->order = $order;
+  }
+
+}
diff --git a/uc_order/src/Form/OrderUpdateForm.php b/uc_order/src/Form/OrderUpdateForm.php
index 9404a6a..e2799ec 100644
--- a/uc_order/src/Form/OrderUpdateForm.php
+++ b/uc_order/src/Form/OrderUpdateForm.php
@@ -6,6 +6,7 @@ use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\uc_order\Entity\Order;
 use Drupal\uc_order\Entity\OrderStatus;
+use Drupal\uc_order\Event\OrderStatusEmailUpdateEvent;
 use Drupal\uc_order\OrderInterface;
 
 /**
@@ -24,56 +25,56 @@ class OrderUpdateForm extends FormBase {
    * {@inheritdoc}
    */
   public function buildForm(array $form, FormStateInterface $form_state, OrderInterface $order = NULL) {
-    $form['order_comment_field'] = array(
+    $form['order_comment_field'] = [
       '#type' => 'details',
       '#title' => $this->t('Add an order comment'),
-    );
-    $form['order_comment_field']['order_comment'] = array(
+    ];
+    $form['order_comment_field']['order_comment'] = [
       '#type' => 'textarea',
       '#description' => $this->t('Order comments are used primarily to communicate with the customer.'),
-    );
+    ];
 
-    $form['admin_comment_field'] = array(
+    $form['admin_comment_field'] = [
       '#type' => 'details',
       '#title' => $this->t('Add an admin comment'),
-    );
-    $form['admin_comment_field']['admin_comment'] = array(
+    ];
+    $form['admin_comment_field']['admin_comment'] = [
       '#type' => 'textarea',
       '#description' => $this->t('Admin comments are only seen by store administrators.'),
-    );
+    ];
 
-    $form['current_status'] = array(
+    $form['current_status'] = [
       '#type' => 'value',
       '#value' => $order->getStatusId(),
-    );
+    ];
 
-    $form['order_id'] = array(
+    $form['order_id'] = [
       '#type' => 'value',
       '#value' => $order->id(),
-    );
+    ];
 
-    $form['controls'] = array(
+    $form['controls'] = [
       '#type' => 'container',
-      '#attributes' => array('class' => array('uc-inline-form')),
+      '#attributes' => ['class' => ['uc-inline-form']],
       '#weight' => 10,
-    );
-    $form['controls']['status'] = array(
+    ];
+    $form['controls']['status'] = [
       '#type' => 'select',
       '#title' => $this->t('Order status'),
       '#default_value' => $order->getStatusId(),
       '#options' => OrderStatus::getOptionsList(),
-    );
-    $form['controls']['notify'] = array(
+    ];
+    $form['controls']['notify'] = [
       '#type' => 'checkbox',
       '#title' => $this->t('Send e-mail notification on update.'),
-    );
+    ];
 
-    $form['controls']['actions'] = array('#type' => 'actions');
-    $form['controls']['actions']['submit'] = array(
+    $form['controls']['actions'] = ['#type' => 'actions'];
+    $form['controls']['actions']['submit'] = [
       '#type' => 'submit',
       '#value' => $this->t('Update'),
       '#button_type' => 'primary',
-    );
+    ];
 
     return $form;
   }
@@ -103,10 +104,13 @@ class OrderUpdateForm extends FormBase {
     }
 
     // Let Rules send email if requested.
-    // if ($form_state->getValue('notify')) {
-    //   $order = Order::load($form_state->getValue('order_id'));
-    //   rules_invoke_event('uc_order_status_email_update', $order);
-    // }
+    if ($form_state->getValue('notify')) {
+      $order = Order::load($form_state->getValue('order_id'));
+      // rules_invoke_event('uc_order_status_email_update', $order);
+      $event = new OrderStatusEmailUpdateEvent($order);
+      $event_dispatcher = \Drupal::service('event_dispatcher');
+      $event_dispatcher->dispatch(OrderStatusEmailUpdateEvent::EVENT_NAME, $event);
+    }
 
     drupal_set_message($this->t('Order updated.'));
   }
diff --git a/uc_order/uc_order.rules.events.yml b/uc_order/uc_order.rules.events.yml
new file mode 100644
index 0000000..1c5c2bd
--- /dev/null
+++ b/uc_order/uc_order.rules.events.yml
@@ -0,0 +1,18 @@
+uc_order_status_update:
+  label: 'Order status gets updated'
+  category: 'Order status'
+  context:
+    original_order:
+      type: 'entity:uc_order'
+      label: 'Original order'
+    updated_order:
+      type: 'entity:uc_order'
+      label: 'Updated order'
+
+uc_order_status_email_update:
+  label: 'E-mail requested for order status update'
+  category: 'Order status'
+  context:
+    order:
+      type: 'entity:uc_order'
+      label: 'Order'
diff --git a/uc_role/src/Event/NotifyGrantEvent.php b/uc_role/src/Event/NotifyGrantEvent.php
new file mode 100644
index 0000000..06a920e
--- /dev/null
+++ b/uc_role/src/Event/NotifyGrantEvent.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Drupal\uc_role\Event;
+
+use Drupal\uc_order\OrderInterface;
+use Symfony\Component\EventDispatcher\Event;
+
+/**
+ * Event that is fired when a user role is granted.
+ */
+class NotifyGrantEvent extends Event {
+
+  const EVENT_NAME = 'uc_role_notify_grant';
+
+  /**
+   * The order.
+   *
+   * @var \Drupal\uc_order\OrderInterface
+   */
+  public $order;
+
+  /**
+   * The expiration.
+   *
+   * @var array
+   */
+  public $expiration;
+
+  /**
+   * Constructs the object.
+   *
+   * @param \Drupal\uc_order\OrderInterface $uc_order
+   *   The order object.
+   * @param array $expiration
+   *   The expiration.
+   */
+  public function __construct(OrderInterface $uc_order, array $expiration) {
+    $this->order = $uc_order;
+    $this->expiration = $expiration;
+  }
+
+}
diff --git a/uc_role/src/Event/NotifyReminderEvent.php b/uc_role/src/Event/NotifyReminderEvent.php
new file mode 100644
index 0000000..10c61a1
--- /dev/null
+++ b/uc_role/src/Event/NotifyReminderEvent.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Drupal\uc_role\Event;
+
+use Drupal\Core\Session\AccountInterface;
+use Symfony\Component\EventDispatcher\Event;
+
+/**
+ * Event that is fired when a user role is close to expiring.
+ */
+class NotifyReminderEvent extends Event {
+
+  const EVENT_NAME = 'uc_role_notify_reminder';
+
+  /**
+   * The user.
+   *
+   * @var \Drupal\Core\Session\AccountInterface
+   */
+  public $account;
+
+  /**
+   * The expiration.
+   *
+   * @var array
+   */
+  public $expiration;
+
+  /**
+   * Constructs the object.
+   *
+   * @param \Drupal\Core\Session\AccountInterface $account
+   *   The user.
+   * @param array $expiration
+   *   The expiration.
+   */
+  public function __construct(AccountInterface $account, array $expiration) {
+    $this->account = $account;
+    $this->expiration = $expiration;
+  }
+
+}
diff --git a/uc_role/src/Event/NotifyRenewEvent.php b/uc_role/src/Event/NotifyRenewEvent.php
new file mode 100644
index 0000000..9ea2b77
--- /dev/null
+++ b/uc_role/src/Event/NotifyRenewEvent.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Drupal\uc_role\Event;
+
+use Drupal\uc_order\OrderInterface;
+use Symfony\Component\EventDispatcher\Event;
+
+/**
+ * Event that is fired when a user role is renewed.
+ */
+class NotifyRenewEvent extends Event {
+
+  const EVENT_NAME = 'uc_role_notify_renew';
+
+  /**
+   * The order.
+   *
+   * @var \Drupal\uc_order\OrderInterface
+   */
+  public $order;
+
+  /**
+   * The expiration.
+   *
+   * @var array
+   */
+  public $expiration;
+
+  /**
+   * Constructs the object.
+   *
+   * @param \Drupal\uc_order\OrderInterface $uc_order
+   *   The order object.
+   * @param array $expiration
+   *   The expiration.
+   */
+  public function __construct(OrderInterface $uc_order, array $expiration) {
+    $this->order = $uc_order;
+    $this->expiration = $expiration;
+  }
+
+}
diff --git a/uc_role/src/Event/NotifyRevokeEvent.php b/uc_role/src/Event/NotifyRevokeEvent.php
new file mode 100644
index 0000000..2a67ba7
--- /dev/null
+++ b/uc_role/src/Event/NotifyRevokeEvent.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Drupal\uc_role\Event;
+
+use Drupal\Core\Session\AccountInterface;
+use Symfony\Component\EventDispatcher\Event;
+
+/**
+ * Event that is fired when a user roles is revoked.
+ */
+class NotifyRevokeEvent extends Event {
+
+  const EVENT_NAME = 'uc_role_notify_revoke';
+
+  /**
+   * The user.
+   *
+   * @var \Drupal\Core\Session\AccountInterface
+   */
+  public $account;
+
+
+  /**
+   * The expiration.
+   *
+   * @var array
+   */
+  public $expiration;
+
+  /**
+   * Constructs the object.
+   *
+   * @param \Drupal\Core\Session\AccountInterface $account
+   *   The user.
+   * @param array $expiration
+   *   The expiration.
+   */
+  public function __construct(AccountInterface $account, array $expiration) {
+    $this->order = $account;
+    $this->expiration = $expiration;
+  }
+
+}
diff --git a/uc_role/uc_role.module b/uc_role/uc_role.module
index 81e6857..ee6e1a4 100644
--- a/uc_role/uc_role.module
+++ b/uc_role/uc_role.module
@@ -17,6 +17,8 @@ use Drupal\Core\Session\AccountInterface;
 use Drupal\Core\Url;
 use Drupal\user\Entity\User;
 use Drupal\user\UserInterface;
+use Drupal\uc_role\Event\NotifyRevokeEvent;
+use Drupal\uc_role\Event\NotifyReminderEvent;
 
 /**
  * Implements hook_help().
@@ -66,12 +68,18 @@ function uc_role_cron() {
     // Role expired.
     elseif ($expiration->expiration <= REQUEST_TIME) {
       // rules_invoke_event('uc_role_notify_revoke', $account, $expiration);
+      $event = new NotifyRevokeEvent($account, $expiration);
+      $event_dispatcher = \Drupal::service('event_dispatcher');
+      $event_dispatcher->dispatch(NotifyRevokeEvent::EVENT_NAME, $event);
       uc_role_revoke($account, $expiration->rid);
     }
 
     // Remind the user about an upcoming expiration.
     elseif ($reminder_granularity != 'never') {
       // rules_invoke_event('uc_role_notify_reminder', $account, $expiration);
+      $event = new NotifyReminderEvent($account, $expiration);
+      $event_dispatcher = \Drupal::service('event_dispatcher');
+      $event_dispatcher->dispatch(NotifyReminderEvent::EVENT_NAME, $event);
       db_update('uc_roles_expirations')
         ->fields(array('notified' => 1))
         ->condition('uid', $account->id())
diff --git a/uc_role/uc_role.rules.events.yml b/uc_role/uc_role.rules.events.yml
new file mode 100644
index 0000000..064e5f1
--- /dev/null
+++ b/uc_role/uc_role.rules.events.yml
@@ -0,0 +1,48 @@
+# function uc_role_rules_event_info() {
+#   $expiration = array(
+#     'type' => 'uc_role_expiration',
+#     'label' => t('Role expiration'),
+
+uc_role_notify_grant:
+  label: 'E-mail for granted roles'
+  category: 'Role'
+  context:
+    order:
+      type: 'entity:uc_order'
+      label: 'Order'
+    expiration:
+      type: 'array'
+      label: 'Role expiration'
+
+uc_role_notify_revoke:
+  label: 'E-mail for revoked roles'
+  category: 'Role'
+  context:
+    account:
+      type: 'entity:user'
+      label: 'User'
+    expiration:
+      type: 'array'
+      label: 'Role expiration'
+
+uc_role_notify_renew:
+  label: 'E-mail for renewed roles'
+  category: 'Role'
+  context:
+    order:
+      type: 'entity:uc_order'
+      label: 'Order'
+    expiration:
+      type: 'array'
+      label: 'Role expiration'
+
+uc_role_notify_reminder:
+  label: 'E-mail for role expiration reminders'
+  category: 'Role'
+  context:
+    account:
+      type: 'entity:user'
+      label: 'User'
+    expiration:
+      type: 'array'
+      label: 'Role expiration'
diff --git a/uc_role/uc_role.rules.inc b/uc_role/uc_role.rules.inc
deleted file mode 100644
index cb86fb2..0000000
--- a/uc_role/uc_role.rules.inc
+++ /dev/null
@@ -1,383 +0,0 @@
-<?php
-
-/**
- * @file
- * Rules hooks for uc_role.module.
- */
-
-/**
- * Implements hook_rules_data_info().
- *
- * An entity is defined in order to get role expiration tokens in the email.
- */
-function uc_role_rules_data_info() {
-  // CA entity for a role expiration object.
-  $entities['uc_role_expiration'] = array(
-    'label' => t('Ubercart role expiration'),
-    'wrap' => TRUE,
-    'token type' => 'uc_role',
-    'property info' => array(
-      'reid' => array(
-        'type' => 'integer',
-        'label' => t('Role expiration ID'),
-        'description' => t('Primary key for role expirations.'),
-      ),
-      'uid' => array(
-        'type' => 'integer',
-        'label' => t('User ID'),
-        'description' => t('The user account ID.'),
-      ),
-      'user' => array(
-        'type' => 'user',
-        'label' => t('User'),
-        'description' => t('The user account that has the role.'),
-        'getter callback' => 'uc_role_get_expiration_properties',
-        'setter callback' => 'uc_role_set_expiration_properties',
-      ),
-      'rid' => array(
-        'type' => 'integer',
-        'label' => t('Role ID'),
-        'description' => t('The granted role.'),
-      ),
-      'expiration' => array(
-        'type' => 'date',
-        'label' => t('Expiration time'),
-        'description' => t('The time the role will be removed from the user.'),
-      ),
-      'notified' => array(
-        'type' => 'boolean',
-        'label' => t('Notified'),
-        'description' => t('Indicates the user has been warned that the role will be removed soon.'),
-      ),
-    ),
-  );
-
-  return $entities;
-}
-
-/**
- * Callback for getting role expiration properties.
- *
- * @see entity_metadata_node_entity_info_alter()
- */
-function uc_role_get_expiration_properties($expiration, array $options, $name, $entity_type) {
-  switch ($name) {
-    case 'user':
-      return $expiration->uid;
-  }
-}
-
-/**
- * Callback for setting role expiration properties.
- *
- * @see entity_metadata_node_entity_info_alter()
- */
-function uc_role_set_expiration_properties($expiration, $name, $value) {
-  if ($name == 'user') {
-    $expiration->uid = $value;
-  }
-}
-
-/**
- * Implements hook_rules_action_info().
- */
-function uc_role_rules_action_info() {
-  // Renew a role expiration.
-  $actions['uc_role_order_renew'] = array(
-    'label' => t('Renew the roles on an order.'),
-    'group' => t('Renewal'),
-    'base' => 'uc_role_action_order_renew',
-    'parameter' => array(
-      'order' => array(
-        'type' => 'uc_order',
-        'label' => t('Order'),
-      ),
-      'message' => array(
-        'type' => 'boolean',
-        'label' => t('Display messages to alert users of any new or updated roles.'),
-      ),
-    ),
-  );
-
-  $email_args = array(
-    'expiration' => array(
-      'type' => 'uc_role_expiration',
-      'label' => t('Role expiration'),
-    ),
-    'from' => array(
-      'type' => 'text',
-      'label' => t('Sender'),
-    ),
-    'addresses' => array(
-      'type' => 'text',
-      'label' => t('Recipients'),
-    ),
-    'subject' => array(
-      'type' => 'text',
-      'label' => t('Subject'),
-    ),
-    'message' => array(
-      'type' => 'text',
-      'label' => t('Message'),
-    ),
-    'format' => array(
-      'type' => 'text',
-      'label' => t('Message format'),
-      'options list' => 'uc_role_message_formats',
-    ),
-  );
-
-  // Send an email to an order with a role expiration
-  $actions['uc_role_order_email'] = array(
-    'label' => t('Send an order email regarding roles.'),
-    'group' => t('Notification'),
-    'base' => 'uc_role_action_order_email',
-    'parameter' => array(
-      'order' => array(
-        'type' => 'uc_order',
-        'label' => t('Order'),
-      ),
-    ) + $email_args,
-  );
-
-  // Send an email to a user with a role expiration
-  $actions['uc_role_user_email'] = array(
-    'label' => t('Send a user an email regarding roles.'),
-    'group' => t('Notification'),
-    'base' => 'uc_role_action_user_email',
-    'parameter' => array(
-      'account' => array(
-        'type' => 'user',
-        'label' => t('User'),
-      ),
-    ) + $email_args,
-  );
-
-  return $actions;
-}
-
-/**
- * Options list callback for message formats.
- */
-function uc_role_message_formats() {
-  global $user;
-
-  $options = array();
-  $formats = filter_formats($user);
-  foreach ($formats as $format) {
-    $options[$format->format] = $format->name;
-  }
-
-  return $options;
-}
-
-/**
- * Implements hook_rules_event_info().
- */
-function uc_role_rules_event_info() {
-  $order = array(
-    'type' => 'uc_order',
-    'label' => t('Order'),
-  );
-  $account = array(
-    'type' => 'user',
-    'label' => t('User'),
-  );
-  $expiration = array(
-    'type' => 'uc_role_expiration',
-    'label' => t('Role expiration'),
-  );
-
-  $events['uc_role_notify_grant'] = array(
-    'label' => t('E-mail for granted roles'),
-    'group' => t('Notification'),
-    'variables' => array(
-      'order' => $order,
-      'expiration' => $expiration,
-    ),
-  );
-
-  $events['uc_role_notify_revoke'] = array(
-    'label' => t('E-mail for revoked roles'),
-    'group' => t('Notification'),
-    'variables' => array(
-      'account' => $account,
-      'expiration' => $expiration,
-    ),
-  );
-
-  $events['uc_role_notify_renew'] = array(
-    'label' => t('E-mail for renewed roles'),
-    'group' => t('Notification'),
-    'variables' => array(
-      'order' => $order,
-      'expiration' => $expiration,
-    ),
-  );
-
-  $events['uc_role_notify_reminder'] = array(
-    'label' => t('E-mail for role expiration reminders'),
-    'group' => t('Notification'),
-    'variables' => array(
-      'account' => $account,
-      'expiration' => $expiration,
-    ),
-  );
-
-  return $events;
-}
-
-/**
- * Send an email with order and role replacement tokens.
- *
- * The recipients, subject, and message fields take order token replacements.
- *
- * @see uc_role_action_order_email_form()
- */
-function uc_role_action_order_email($order, $role_expiration, $from, $addresses, $subject, $message, $format) {
-  $settings = array(
-    'from' => $from,
-    'addresses' => $addresses,
-    'subject' => $subject,
-    'message' => $message,
-    'format' => $format,
-  );
-  // Token replacements for the subject and body
-  $settings['replacements'] = array(
-    'uc_order' => $order,
-    'uc_role' => $role_expiration,
-  );
-
-  // Replace tokens and parse recipients.
-  $recipients = array();
-  $addresses = \Drupal::token()->replace($settings['addresses'], $settings['replacements']);
-  foreach (explode("\n", $addresses) as $address) {
-    $address = trim($address);
-    // Remove blank lines
-    if (!empty($address)) {
-      $recipients[] = $address;
-    }
-  }
-
-  // Send to each recipient.
-  foreach ($recipients as $email) {
-    $sent = \Drupal::service('plugin.manager.mail')->mail('uc_order', 'action-mail', $email, uc_store_mail_recipient_langcode($email), $settings, $settings['from']);
-
-    if (!$sent['result']) {
-      \Drupal::logger('uc_role')->error('Attempt to e-mail @email concerning order @order_id failed.', ['@email' => $email, '@order_id' => $order->id()]);
-    }
-  }
-}
-
-/**
- * Send an email with order and role replacement tokens.
- *
- * The recipients, subject, and message fields take order token replacements.
- *
- * @see uc_role_action_user_email_form()
- */
-function uc_role_action_user_email($account, $role_expiration, $from, $addresses, $subject, $message, $format) {
-  $settings = array(
-    'from' => $from,
-    'addresses' => $addresses,
-    'subject' => $subject,
-    'message' => $message,
-    'format' => $format,
-  );
-  // Token replacements for the subject and body
-  $settings['replacements'] = array(
-    'user' => $account,
-    'uc_role' => $role_expiration,
-  );
-
-  // Replace tokens and parse recipients.
-  $recipients = array();
-  $addresses = \Drupal::token()->replace($settings['addresses'], $settings['replacements']);
-  foreach (explode("\n", $addresses) as $address) {
-    $address = trim($address);
-    // Remove blank lines
-    if (!empty($address)) {
-      $recipients[] = $address;
-    }
-  }
-
-  // Send to each recipient.
-  foreach ($recipients as $email) {
-    $sent = \Drupal::service('plugin.manager.mail')->mail('uc_order', 'action-mail', $email, uc_store_mail_recipient_langcode($email), $settings, $settings['from']);
-
-    if (!$sent['result']) {
-      \Drupal::logger('uc_role')->error('Attempt to e-mail @email concerning role notification failed.', ['@email' => $email]);
-    }
-  }
-}
-
-/**
- * Renews an order's product roles.
- *
- * This function updates expiration time on all roles found on all products
- * on a given order. First, the order user is loaded, then the order's products
- * are scanned for role product features. If any are found, the expiration time
- * of the role is set using the feature settings to determine the new length of
- * time the new expiration will last. An order comment is saved, and the user
- * is notified in Drupal, as well as through the email address associated with
- * the order.
- *
- * @param $order
- *   An Ubercart order object.
- * @param $message
- *   If TRUE, messages will be displayed to the user about the renewal.
- */
-function uc_role_action_order_renew($order, $message) {
-  // Load the order's user and exit if not available.
-  if (!($account = $order->getOwner())) {
-    return;
-  }
-
-  // Loop through all the products on the order.
-  foreach ($order->products as $product) {
-    // Look for any role promotion features assigned to the product.
-    $roles = db_query('SELECT * FROM {uc_roles_products} WHERE nid = :nid', [':nid' => $product->nid]);
-
-    foreach ($roles as $role) {
-      // Product model matches, or was 'any'.
-      if (!empty($role->model) && $role->model != $product->model) {
-        continue;
-      }
-
-      $existing_role = db_query('SELECT * FROM {uc_roles_expirations} WHERE uid = :uid AND rid = :rid', [':uid' => $account->id(), ':rid' => $role->rid])->fetchObject();
-
-      // Determine the expiration timestamp for the role.
-      $expiration = _uc_role_product_get_expiration($role, $product->qty, isset($existing_role->expiration) ? $existing_role->expiration : NULL);
-
-      // Leave an order comment.
-      if (isset($existing_role->expiration)) {
-        $op = 'renew';
-        $comment = t('Customer user role %role renewed.', ['%role' => _uc_role_get_name($role->rid)]);
-
-        // Renew the user's role.
-        uc_role_renew($account, $role->rid, $expiration, !$message);
-      }
-      else {
-        $op = 'grant';
-        $comment = t('Customer granted user role %role.', ['%role' => _uc_role_get_name($role->rid)]);
-
-        // Grant the role to the user.
-        uc_role_grant($account, $role->rid, $expiration, TRUE, !$message);
-      }
-
-      // Get the new expiration (if applicable)
-      $new_expiration = db_query('SELECT * FROM {uc_roles_expirations} WHERE uid = :uid AND rid = :rid', [':uid' => $account->id(), ':rid' => $role->rid])->fetchObject();
-      if (!$new_expiration) {
-        $new_expiration = new stdClass();
-        $new_expiration->uid = $account->uid;
-        $new_expiration->rid = $role->rid;
-        $new_expiration->expiration = NULL;
-      }
-
-      uc_order_comment_save($order->id(), $account->id(), $comment);
-
-      // Trigger role email.
-      rules_invoke_event('uc_role_notify_' . $op, $order, $new_expiration);
-    }
-  }
-}