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<?php

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namespace sgpb;

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/**

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* Class SGPBMenu

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* @package sgpb

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class SGPBMenu

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{

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/**

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* Singleton variable to save menu locations.

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* @var

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public static $navMenuLocations;

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/**

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* Singleton variable to save menu items on which popup is set.

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* @var

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public static $navMenuItems;

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/**

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* Menu constructor.

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public function __construct()

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{

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$this->init();

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}

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/**

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* Initialize actions and filters.

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public function init()

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{

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add_action('wp_nav_menu_item_custom_fields', array($this, 'fields'), 10, 4);

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add_action('wp_update_nav_menu_item', array($this, 'save'), 10, 2);

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add_filter('nav_menu_css_class', array($this, 'addPopupTriggeringClass'), 10, 2);

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add_filter('wp_setup_nav_menu_item', array($this, 'addCustomNavFields'));

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add_filter('sgpbLoadablePopups', array($this, 'addPopupToLoad'));

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}

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/**

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* @param $classes

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* @param $menuItem

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* @return mixed

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public function addPopupTriggeringClass($classes, $menuItem)

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{

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if (!isset($menuItem->sgpbPopupId)) {

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return $classes;

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}

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$popupId = $menuItem->sgpbPopupId;

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if ($popupId && !in_array('sg-popup-id-'.$popupId, $classes)) {

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array_push($classes, 'sg-popup-id-'.$popupId);

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}

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return $classes;

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}

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/**

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* @param $popups

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* @return mixed

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public function addPopupToLoad($popups) {

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$registeredMenus = $this->getNavMenuLocations();

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/* Will only return menu items on which popup is set */

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$menuItems = $this->getNavMenuItemsWithPopup($registeredMenus);

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foreach ($menuItems as $menuItem) {

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$menuPopupId = (int)$menuItem->sgpbPopupId;

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/* As $menuItems contains only menu items on which popup is set

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we can check if the popup should load on current page or not */

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$popup = $this->shouldLoadPopupForMenuItem($menuPopupId, $popups);

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if (!$popup) {

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$popup = SGPopup::find($menuPopupId);

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if (!$popup instanceof SGPopup) continue;

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/* We could set param everywhere as popup was not suppose to load on current page.

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We could also load popup to current requested page but to avoid any confusion

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it will be better to use everywhere */

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// $popup->setTarget(array(

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// array('param' => 'everywhere')

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// ));

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$popups[] = $popup;

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}

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$popupOpeningEvents = $popup->getEvents();

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/* If the popup is setup inside the menu but there is no onclick event we will add manually */

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if (!$this->inMultiDimArray('click', $popupOpeningEvents)) {

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$popup->setEvents(array('param' => 'click', 'value' => ''));

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}

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/* if the popup is set on menu item we don't need any limitation */

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//$this->disablePopupLimitation($popup);

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}

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return $popups;

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}

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/**

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* @param $popup

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private function disablePopupLimitation(&$popup)

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{

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$popupOptions = $popup->getOptions();

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unset($popupOptions['sgpb-show-popup-same-user']);

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$popup->setOptions($popupOptions);

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}

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/**

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* @param $item

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* @param $array

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* @return false|int

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private function inMultiDimArray($item , $array){

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return preg_match('/"'.preg_quote($item, '/').'"/i' , wp_json_encode($array));

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}

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/**

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* @param $menuPopupId

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* @param $popups

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* @return false|mixed

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private function shouldLoadPopupForMenuItem($menuPopupId, &$popups) {

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foreach ($popups as $popup) {

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$popupId = $popup->getId();

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/* Menu item contains popup with current id and the popup is loaded */

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if ($menuPopupId == $popupId) {

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return $popup;

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}

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}

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return false;

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}

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/**

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* @param false $forceUpdate

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* @return array

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public function getNavMenuLocations($forceUpdate = false)

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{

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if (!isset(self::$navMenuLocations) && !$forceUpdate) {

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self::$navMenuLocations = get_nav_menu_locations();

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}

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return isset(self::$navMenuLocations) ? self::$navMenuLocations : array();

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}

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/**

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* @param array $navMenuLocations

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* @param false $forceUpdate

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* @return array of menu items where popup is set

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public function getNavMenuItemsWithPopup($navMenuLocations = array(), $forceUpdate = false)

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{

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if (!isset(self::$navMenuItems) && !$forceUpdate) {

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foreach ($navMenuLocations as $menuName => $menuId) {

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$menuItems = wp_get_nav_menu_items($menuId);

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if (!empty($menuItems)) {

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foreach ($menuItems as $menuItem) {

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$popupId = $menuItem->sgpbPopupId;

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if ($popupId > 0) {

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self::$navMenuItems[] = $menuItem;

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}

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}

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}

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}

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}

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return isset(self::$navMenuItems) ? self::$navMenuItems : array();

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}

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/**

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* @param $menu_item

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* @return mixed

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public function addCustomNavFields($menuItem)

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{

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$menuItem->sgpbPopupId = get_post_meta($menuItem->ID, '_menu_sgpb_popup_id', true);

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return $menuItem;

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}

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/**

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* @return array of popup objects

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public static function getPopups()

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{

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return SGPopup::getAllPopups();

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}

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/**

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* Adds custom fields to the menu item editor.

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* @param $itemId

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* @param $item

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* @param $depth

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* @param $args

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public function fields($itemId, $item, $depth, $args)

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{ ?>

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<?php esc_html_e('Select a Popup', 'popup-builder'); ?><br/>

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<select class="widefat" name="menu-item-pb[<?php echo esc_attr($item->ID); ?>][popup]"

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id="edit-menu-item-pb-<?php echo esc_attr($item->ID); ?>">

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<?php foreach (self::getPopups() as $popup) : ?>

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<option value="<?php echo esc_attr($popup->getId()); ?>" <?php selected($popup->getId(), (int)get_post_meta($itemId, '_menu_sgpb_popup_id', true)); ?>>

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<?php echo esc_html($popup->getTitle()); ?>

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</option>

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<?php endforeach; ?>

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</select>

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</label>

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</div>

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<?php

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}

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/**

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* Processes the saving of menu items.

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* @param $menu_id

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* @param $item_id

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public function save($menu_id, $item_id)

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{

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if (!isset($_POST['menu-item-pb'])) { // phpcs:ignore WordPress.Security.NonceVerification

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return;

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}

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if ( current_user_can( 'edit_theme_options' ) ) {

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check_admin_referer( 'update-nav_menu', 'update-nav-menu-nonce' );

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delete_post_meta($item_id, '_menu_sgpb_popup_id');

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if (isset($_POST['menu-item-pb'][$item_id]['popup'])) {

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$popupId = (int)sanitize_text_field($_POST['menu-item-pb'][$item_id]['popup']);

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update_post_meta($item_id, '_menu_sgpb_popup_id', $popupId);

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}

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}

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}

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}

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