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<?php
/**
 * Rules exception base class.
 *
 * @since 1.5.0
 *
 * @package OMAPI
 * @author  Justin Sternberg
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Rules exception base class.
 *
 * @since 1.5.0
 */
class OMAPI_Rules_Exception extends Exception {
	protected $bool       = null;
	protected $exceptions = array();
	public function __construct( $message = null, $code = 0, Exception $previous = null ) {
		if ( is_bool( $message ) ) {
			$this->bool = $message;
			$message    = null;
		}
		parent::__construct( $message, $code, $previous );
	}

public function get_bool() {
		return $this->bool;
	}

public function add_exceptions( array $exceptions ) {
		$this->exceptions = $exceptions;
	}

public function get_exceptions() {
		return (array) $this->exceptions;
	}

}
class OMAPI_Rules_False extends OMAPI_Rules_Exception {
	protected $bool = false;
}
class OMAPI_Rules_True extends OMAPI_Rules_Exception {
	protected $bool = true;
}

/**
 * Rules class.
 *
 * @since 1.5.0
 *
 * @package OMAPI
 * @author  Justin Sternberg
 */
class OMAPI_Rules {

/**
	 * Holds the meta fields used for checking output statuses.
	 *
	 * @since 1.5.0
	 *
	 * @var array
	 */
	protected $fields = array(
		'enabled',
		'automatic',
		'users',
		'never',
		'only',
		'categories',
		'taxonomies',
		'show',
		'type',
		'test',
		'show_on_woocommerce',
		'is_wc_shop',
		'is_wc_product',
		'is_wc_cart',
		'is_wc_checkout',
		'is_wc_account',
		'is_wc_endpoint',
		'is_wc_endpoint_order_pay',
		'is_wc_endpoint_order_received',
		'is_wc_endpoint_view_order',
		'is_wc_endpoint_edit_account',
		'is_wc_endpoint_edit_address',
		'is_wc_endpoint_lost_password',
		'is_wc_endpoint_customer_logout',
		'is_wc_endpoint_add_payment_method',
		'is_wc_product_category',
		'is_wc_product_tag',
	);

/**
	 * Holds the meta field values for optin.
	 *
	 * @since 1.5.0
	 *
	 * @var array
	 */
	protected $field_values = array();

/**
	 * Whether we're checking for inline display.
	 *
	 * @since 1.5.0
	 *
	 * @var boolean
	 */
	protected $is_inline_check = false;

/**
	 * The advanced settings for the campaign that should override inline.
	 *
	 * @since 1.6.2
	 *
	 * @var array
	 */
	protected $advanced_settings = array();

/**
	 * The current post id.
	 *
	 * @since 1.5.0
	 *
	 * @var int
	 */
	protected $post_id = 0;

/**
	 * The campaign post object.
	 *
	 * @since 1.5.0
	 *
	 * @var object
	 */
	protected $optin = null;

/**
	 * The OMAPI_Rules_Exception if applicable.
	 *
	 * @var OMAPI_Rules_Exception
	 */
	protected $caught = null;

/**
	 * Whether campaign in loop should be output globally.
	 *
	 * @since 1.5.0
	 *
	 * @var bool
	 */
	protected $global_override = true;

/**
	 * The last instance called of this class.
	 *
	 * @var OMAPI_Rules
	 */
	public static $last_instance = null;

/**
	 * Exceptions which were not caught/were ignored and may be the reason for the final exclusion.
	 *
	 * @var array
	 */
	public $reasons = array();

/**
	 * Primary class constructor.
	 *
	 * @since 1.5.0
	 *
	 * @param  null|object $optin           The campaign post object.
	 * @param  int         $post_id         The current post id.
	 * @param  bool        $is_inline_check Whether we're checking for inline display.
	 */
	public function __construct( $optin = null, $post_id = 0, $is_inline_check = false ) {
		$this->fields = apply_filters( 'optin_monster_api_output_fields', $this->fields );

// Default to allowing global override if not an inline check.
		$this->optin           = $optin;
		$this->post_id         = $post_id;
		$this->is_inline_check = $is_inline_check;
		$this->global_override = ! $is_inline_check;

self::$last_instance = $this;
	}

/**
	 * Determines if given campaign should show inline.
	 *
	 * @since  1.5.0
	 *
	 * @param  int    $post_id The current post id.
	 * @param  object $optin   The campaign post object.
	 *
	 * @return boolean|array
	 */
	public static function check_inline( $optin, $post_id = 0 ) {
		return self::check( $optin, $post_id, true );
	}

/**
	 * Determines if given campaign should show for a shortcode.
	 *
	 * @since  1.5.0
	 *
	 * @param  int    $post_id The current post id.
	 * @param  object $optin   The campaign post object.
	 *
	 * @return boolean|array
	 */
	public static function check_shortcode( $optin, $post_id = 0 ) {
		return self::check( $optin, $post_id, 'shortcode' );
	}

/**
	 * Determines if given campaign should show.
	 *
	 * @since  1.5.0
	 *
	 * @param  int    $post_id         The current post id.
	 * @param  object $optin           The campaign post object.
	 * @param  bool   $is_inline_check Whether we're checking for inline display.
	 *
	 * @return boolean|array
	 */
	public static function check( $optin, $post_id = 0, $is_inline_check = false ) {
		$rules = new self( $optin, $post_id, $is_inline_check );

return $rules->should_output();
	}

public function get_field_value( $field ) {
		return isset( $this->field_values[ $field ] )
			? $this->field_values[ $field ]
			: null;
	}

public function field_empty( $field ) {
		return empty( $this->field_values[ $field ] );
	}

public function field_not_empty_array( $field ) {
		return OMAPI_Utils::field_not_empty_array( $this->field_values, $field );
	}

public function item_in_field( $item, $field ) {
		return OMAPI_Utils::item_in_field( $item, $this->field_values, $field );
	}

public function field_is( $field, $value ) {
		return isset( $this->field_values[ $field ] ) && $value === $this->field_values[ $field ];
	}

public function is_inline_type() {
		return OMAPI_Utils::is_inline_type( $this->get_field_value( 'type' ) );
	}

/**
	 * Checks if current campaign is a non-shortcode inline type on a post.
	 *
	 * @since  1.6.2
	 *
	 * @return bool
	 */
	public function is_inline_post_type() {
		return $this->is_inline_check && 'shortcode' !== $this->is_inline_check && is_singular( 'post' );
	}

/**
	 * Determines if given campaign should show.
	 *
	 * @since  1.5.0
	 *
	 * @return boolean|array
	 */
	public function should_output() {

// Collect all the fields to check against.
		$this->collect_optin_fields();

$should_output = $this->check_should_output();

return apply_filters( 'optinmonster_pre_campaign_should_output', $should_output, $this );
	}

/**
	 * Runs all checks to determine if given campaign should show.
	 *
	 * @since  1.5.0
	 *
	 * @return boolean|array
	 */
	protected function check_should_output() {
		try {

$this->exclude_if_not_enabled();
			$this->exclude_on_campaign_types();
			$this->exclude_on_user_logged_in_checks();
			$this->exclude_if_inline_and_not_automatic();

$this->default_checks();
			$this->woocommerce_checks();
			$this->include_if_inline_and_automatic_and_no_advanced_settings();
			$this->output_if_global_override();

$e = new OMAPI_Rules_False( 'default no show' );

if ( ! empty( $this->reasons ) ) {
				$e->add_exceptions( $this->reasons );
			}

throw $e;

} catch ( OMAPI_Rules_Exception $e ) {
			$this->caught  = $e;
			$should_output = $e instanceof OMAPI_Rules_True;
		}

// If query var is set and user can manage OM, output debug data.
		if ( OMAPI_Debug::can_output_debug() ) {
			$this->output_rules_debug();
		}

return $should_output;
	}

/**
	 * Collect all the field values for an optin.
	 *
	 * @since  1.5.0
	 *
	 * @return OMAPI_Rules
	 */
	public function collect_optin_fields() {
		foreach ( $this->fields as $field ) {
			$this->field_values[ $field ] = get_post_meta( $this->optin->ID, '_omapi_' . $field, true );
		}

return $this;
	}

/**
	 * Excludes campaign from showing if its 'enabled' field is falsey or missing.
	 *
	 * @since  1.5.0
	 *
	 * @throws OMAPI_Rules_False
	 * @return void
	 */
	public function exclude_if_not_enabled() {
		if (
			// Ensure the optin is enabled and should output.
			$this->field_empty( 'enabled' )
			// Unless it's a shortcode, in which case, we don't want to check
			// if the campaign in the shortcode is "enabled".
			// This is for legacy reasons. ¯\_(ツ)_/¯
			&& 'shortcode' !== $this->is_inline_check
		) {
			throw new OMAPI_Rules_False( 'not enabled' );
		}
	}

/**
	 * Excludes campaign from showing if its 'type' field is not an inline type
	 * and it's an inline request, or if it IS an inline type but NOT an inline request.
	 *
	 * @since  1.5.0
	 *
	 * @throws OMAPI_Rules_False
	 * @return void
	 */
	public function exclude_on_campaign_types() {
		// If inline check
		if ( $this->is_inline_check ) {
			// And if the type is not an inline type...
			if ( ! $this->is_inline_type() ) {
				// exclude it from outputting.
				throw new OMAPI_Rules_False( 'only inline for inline check' );
			}
		} else {
			// Ok, it's not an inline check
			// So check if the type is an inline or sidebar type
			if ( $this->field_is( 'type', 'sidebar' ) || $this->is_inline_type() ) {
				// and exclude it from outputting.
				throw new OMAPI_Rules_False( 'no inline for global check' );
			}
		}
	}

/**
	 * Checks if campaign should be shown based on its field and if user is logged in.
	 *
	 * @since  1.5.0
	 *
	 * @throws OMAPI_Rules_False
	 * @return void
	 */
	public function exclude_on_user_logged_in_checks() {
		$is_logged_in = is_user_logged_in();

// If in legacy test mode but not logged in, skip over the optin.
		if ( ! $this->field_empty( 'test' ) && ! $is_logged_in ) {
			throw new OMAPI_Rules_False( 'test mode' );
		}

// If the optin is to be shown only to logged in users but is not logged in, pass over it.
		if ( $this->field_is( 'users', 'in' ) && ! $is_logged_in ) {
			throw new OMAPI_Rules_False( 'exclude for logged out' );
		}

// If the optin is to be shown only to visitors but is logged in, pass over it.
		if ( $this->field_is( 'users', 'out' ) && $is_logged_in ) {
			throw new OMAPI_Rules_False( 'exclude for logged in' );
		}
	}

/**
	 * The default checks to see if given campaign should show.
	 *
	 * @since  1.5.0
	 *
	 * @throws OMAPI_Rules_False
	 * @return void
	 */
	public function default_checks() {

// Check for global disable.
		if ( get_post_meta( $this->post_id, 'om_disable_all_campaigns', true ) ) {
			$this->global_override = false;
			throw new OMAPI_Rules_False( "all campaigns disabled for this post ($this->post_id)" );
		}

// Exclude posts/pages from optin display

// Set flag for possibly not loading globally.
		if ( $this->field_not_empty_array( 'only' ) ) {
			$this->global_override           = false;
			$this->advanced_settings['show'] = $this->get_field_value( 'only' );

// If the optin is only to be shown on specific post IDs...
			if ( $this->item_in_field( $this->post_id, 'only' ) ) {
				throw new OMAPI_Rules_True( "include on only $this->post_id" );
			}
		}

// Exclude posts/pages from optin display
		if ( $this->item_in_field( $this->post_id, 'never' ) ) {
			// No global check on purpose. Global is still true if only this setting is populated.
			throw new OMAPI_Rules_False( "exclude on never $this->post_id" );
		}

try {
			// If the optin is only to be shown on particular categories...
			$this->check_categories_field();
		} catch ( OMAPI_Rules_Exception $e ) {
			if ( $e instanceof OMAPI_Rules_True ) {
				throw new OMAPI_Rules_True( 'include on categories', 0, $e );
			}
			$this->reasons[] = $e;
		}

try {
			// If the optin is only to be shown on particular taxonomies...
			$this->check_taxonomies_field();
		} catch ( OMAPI_Rules_Exception $e ) {
			if ( $e instanceof OMAPI_Rules_True ) {
				throw new OMAPI_Rules_True( 'include on taxonomies', 0, $e );
			}
			$this->reasons[] = $e;
		}

if ( $this->field_not_empty_array( 'show' ) ) {
			// Set flag for not loading globally.
			$this->global_override           = false;
			$this->advanced_settings['show'] = $this->get_field_value( 'show' );
		}

if (
			! $this->is_inline_check
			&& $this->item_in_field( 'index', 'show' ) && OMAPI_Utils::is_front_or_search()
		) {
			throw new OMAPI_Rules_True( 'is front or search and show on index' );
		}

// Check if we should show on a selected post type.
		if ( $this->item_in_field( get_post_type(), 'show' ) && ! OMAPI_Utils::is_front_or_search() ) {
			throw new OMAPI_Rules_True( 'include on post type but not front/search' );
		}

// Check if we should show on a selected singular post type.
		if ( $this->field_not_empty_array( 'show' ) ) {
			foreach ( $this->get_field_value( 'show' ) as $show_value ) {
				if ( 0 === strpos( $show_value, 'singular___' ) ) {
					$post_type = str_replace( 'singular___', '', $show_value );
					if ( is_singular( $post_type ) ) {
						throw new OMAPI_Rules_True( 'include on singular post type: ' . $post_type );
					}
				}
			}
		}
	}

/**
	 * Check for woocommerce rules.
	 *
	 * @since  1.5.0
	 *
	 * @throws OMAPI_Rules_False
	 * @return void
	 */
	public function woocommerce_checks() {
		// If WooCommerce is enabled we can look for WooCommerce specific settings.
		if ( OMAPI::is_woocommerce_active() ) {

if (
				! $this->is_inline_check
				// Separate never checks for WooCommerce pages that don't ID match
				// No global check on purpose. Global is still true if only this setting is populated.
				&& $this->item_in_field( wc_get_page_id( 'shop' ), 'never' )
				&& is_shop()
			) {
				throw new OMAPI_Rules_False( 'never on wc is_shop' );
			}

try {
				$this->check_woocommerce_field();
			} catch ( OMAPI_Rules_Exception $e ) {
				if ( $e instanceof OMAPI_Rules_True ) {
					throw new OMAPI_Rules_True( 'include woocommerce', 0, $e );
				}
				$this->reasons[] = $e;
			}
		}
	}

/**
	 * Disable campaign from showing if it is being checked inline and is NOT set to automatic.
	 *
	 * @since  1.5.3
	 *
	 * @throws OMAPI_Rules_False
	 * @return void
	 */
	public function exclude_if_inline_and_not_automatic() {
		if (
			$this->is_inline_post_type()
			&& $this->field_empty( 'automatic' )
		) {
			throw new OMAPI_Rules_False( 'exclude inline if not automatic on singular post' );
		}
	}

/**
	 * Enable campaign to show if it is being checked inline and is set to automatic.
	 *
	 * @since 1.6.2
	 *
	 * @throws OMAPI_Rules_True
	 * @return void
	 */
	public function include_if_inline_and_automatic_and_no_advanced_settings() {
		if (
			empty( $this->advanced_settings )
			&& $this->is_inline_post_type()
			&& ! $this->field_empty( 'automatic' )
		) {
			throw new OMAPI_Rules_True( 'include inline automatic on singular post' );
		}
	}

/**
	 * Enable campaign to show if it's global override to show is still true.'
	 *
	 * @since  1.5.0
	 *
	 * @throws OMAPI_Rules_False
	 * @return void
	 */
	public function output_if_global_override() {
		if ( $this->global_override ) {
			// TODO: Track how often this occurs to determine the importance
			// of the $this->global_override logic.
			throw new OMAPI_Rules_True( 'include with global override' );
		}
	}

protected function check_categories_field() {
		$categories = $this->get_field_value( 'categories' );
		if ( empty( $categories ) ) {
			throw new OMAPI_Rules_False( 'no categories' );
		}

if ( $this->field_not_empty_array( 'categories' ) ) {
			// Set flag for possibly not loading globally.
			$this->global_override                 = false;
			$this->advanced_settings['categories'] = $categories;
		}

// If this is the home page, check to see if they have decided to load on certain archive pages.
		// Run a check for archive-type pages.
		// If showing on home and we are on an index page, show the optin.
		// TODO: this originally checked is_front_page() || is_home() || is_archive() || is_search()
		// but only is_home() would work originally (https://github.com/awesomemotive/optin-monster-wp-api/blame/948b74254284a57f1a338dfc70bc6db59ed3ce8b/OMAPI/Output.php#L407).
		// Maybe reintroduce other conditions?
		$this->check_is_home_and_show_on_index();

// TODO: Add check for: "Check if we should show on a selected post type."
		// This was in the old logic (https://github.com/awesomemotive/optin-monster-wp-api/blame/948b74254284a57f1a338dfc70bc6db59ed3ce8b/OMAPI/Output.php#L385-L392)
		// But has not worked for 3+ years as the is_home() condition was precluding it.
		// Also applies to logic in check_taxonomies_field
		// if ( in_array( 'post', (array) $fields['show'] ) && ! ( is_front_page() || is_home() || is_archive() || is_search() ) ) {
		// $omapi_output->set_slug( $optin );
		// return $html;
		// }

if ( $this->post_id ) {
			$all_cats = get_the_category( $this->post_id );

if ( ! empty( $all_cats ) ) {
				foreach ( $all_cats as $term ) {
					$has_term = in_array( $term->term_id, $categories );

if ( ! $has_term ) {
						continue;
					}

if ( ! $this->is_inline_check ) {
						throw new OMAPI_Rules_True( "post has category $term->name" );
					}

if ( ! is_archive() ) {
						throw new OMAPI_Rules_True( "post has category $term->name & is not archive" );
					}
				}
			}
		}

if ( ! $this->is_inline_check && is_category( $categories ) ) {
			throw new OMAPI_Rules_True( 'post on category' );
		}

throw new OMAPI_Rules_False( 'no category matches found' );
	}

protected function check_taxonomies_field() {
		$taxonomies = $this->get_field_value( 'taxonomies' );
		if ( empty( $taxonomies ) ) {
			throw new OMAPI_Rules_False( 'no taxonomies' );
		}

$values = $this->field_not_empty_array( 'taxonomies' );
		if ( $values ) {
			foreach ( $values as $i => $value ) {
				if ( OMAPI_Utils::field_not_empty_array( $values, $i ) ) {
					$this->global_override                 = false;
					$this->advanced_settings['taxonomies'] = $values;
					break;
				}
			}
		}

// If the optin is only to be shown on particular taxonomies...
		if ( $this->is_inline_check && ! is_singular() ) {
			throw new OMAPI_Rules_False( 'not singular template' );
		}

// If this is the home page, check to see if they have decided to load on certain archive pages.
		// Run a check for archive-type pages.
		// If showing on index pages and we are on an index page, show the optin.
		// TODO: potentially move this above check_taxonomies_field && check_categories_field
		$this->check_is_home_and_show_on_index();

foreach ( $taxonomies as $taxonomy => $ids_to_check ) {
			// Tags are saved differently.
			// https://github.com/awesomemotive/optin-monster-wp-api/issues/104
			if ( ! empty( $ids_to_check[0] ) && false !== strpos( $ids_to_check[0], ',' ) ) {
				$ids_to_check = explode( ',', (string) $ids_to_check[0] );
			}

$ids_to_check = (array) $ids_to_check;

if ( $this->post_id ) {
				$all_terms = get_the_terms( $this->post_id, $taxonomy );

if ( ! empty( $all_terms ) ) {
					foreach ( $all_terms as $term ) {
						// TODO: determine why this logic is different than in check_categories_field.
						if ( in_array( $term->term_id, $ids_to_check ) ) {
							throw new OMAPI_Rules_True( "post has $taxonomy $term->name" );
						}
					}
				}
			}

if ( ! $this->is_inline_check ) {
				foreach ( $ids_to_check as $tax_id ) {
					if ( OMAPI_Utils::is_term_archive( $tax_id, $taxonomy ) ) {
						throw new OMAPI_Rules_True( "not inline and is on $taxonomy archive" );
					}
				}
			}
		}

throw new OMAPI_Rules_False( 'no taxonomy matches found' );
	}

protected function check_is_home_and_show_on_index() {
		if ( is_home() && $this->item_in_field( 'index', 'show' ) ) {
			throw new OMAPI_Rules_True( 'is_home and show on index' );
		}
	}

protected function check_woocommerce_field() {

$wc_checks = array(
			'show_on_woocommerce'               => array( 'is_woocommerce' ), // is woocommerce anything
			'is_wc_shop'                        => array( 'is_shop' ),
			'is_wc_product'                     => array( 'is_product' ),
			'is_wc_cart'                        => array( 'is_cart' ),
			'is_wc_checkout'                    => array( 'is_checkout' ),
			'is_wc_account'                     => array( 'is_account_page' ),
			'is_wc_endpoint'                    => array( 'is_wc_endpoint_url' ),
			'is_wc_endpoint_order_pay'          => array( 'is_wc_endpoint_url', 'order-pay' ),
			'is_wc_endpoint_order_received'     => array( 'is_wc_endpoint_url', 'order-received' ),
			'is_wc_endpoint_view_order'         => array( 'is_wc_endpoint_url', 'view-order' ),
			'is_wc_endpoint_edit_account'       => array( 'is_wc_endpoint_url', 'edit-account' ),
			'is_wc_endpoint_edit_address'       => array( 'is_wc_endpoint_url', 'edit-address' ),
			'is_wc_endpoint_lost_password'      => array( 'is_wc_endpoint_url', 'lost-password' ),
			'is_wc_endpoint_customer_logout'    => array( 'is_wc_endpoint_url', 'customer-logout' ),
			'is_wc_endpoint_add_payment_method' => array( 'is_wc_endpoint_url', 'add-payment-method' ),
		);

foreach ( $wc_checks as $field => $callback ) {
			if ( $this->field_empty( $field ) ) {
				continue;
			}

$this->global_override             = false;
			$this->advanced_settings[ $field ] = $this->get_field_value( $field );

if ( call_user_func_array( array_shift( $callback ), $callback ) ) {
				// If it passes, send it back.
				throw new OMAPI_Rules_True( $field );
			}
		}
	}

/**
	 * Magic getter for our object.
	 *
	 * @since  1.5.0
	 *
	 * @param  string $property
	 * @throws Exception Throws an exception if the field is invalid.
	 *
	 * @return mixed
	 */
	public function __get( $property ) {
		switch ( $property ) {
			case 'is_inline_check':
			case 'post_id':
			case 'optin':
			case 'fields':
			case 'field_values':
			case 'caught':
			case 'global_override':
			case 'advanced_settings':
				return $this->$property;
			default:
				break;
		}

throw new Exception( sprintf( esc_html__( 'Invalid %1$s property: %2$s', 'optin-monster-api' ), __CLASS__, $property ) );
	}

/**
	 * Outputs some debug data for the current campaign object.
	 *
	 * @since  1.6.2
	 *
	 * @return void
	 */
	protected function output_rules_debug() {
		$show = $this->caught instanceof OMAPI_Rules_True;

echo '<xmp class="_om-campaign-sep">' . str_repeat( '-', 10 ) . $this->optin->post_name . str_repeat( '-', 10 ) . '</xmp>';

echo '<xmp class="_om-post-id">$post_id: ' . print_r( $this->post_id, true ) . '</xmp>';
		echo '<xmp class="_om-post-id">$debug_setting_enabled: ' . print_r( OMAPI::get_instance()->get_option( 'api', 'omwpdebug' ), true ) . '</xmp>';
		echo '<xmp class="_om-campaign-status" style="color: ' . ( $show ? 'green' : 'red' ) . ';">' . $this->optin->post_name . ":\n" . print_r( $this->caught->getMessage(), true );
		$reasons = $this->caught->get_exceptions();
		if ( ! empty( $reasons ) ) {
			$messages = array();
			foreach ( $reasons as $e ) {
				$messages[] = $e->getMessage();
			}

echo ":\n\t- " . implode( "\n\t- ", $messages );
		}
		echo '</xmp>';

if ( ! empty( $this->advanced_settings ) ) {
			echo '<xmp class="_om-advanced-settings">$advanced_settings: ' . print_r( $this->advanced_settings, true ) . '</xmp>';
		}

if ( ! empty( $this->field_values ) ) {
			echo '<xmp class="_om-field-values" style="display:none;">$field_values: ' . print_r( $this->field_values, true ) . '</xmp>';
		}

echo '<xmp class="_om-is-inline-check" style="display:none;">$is_inline_check?: ' . print_r( $this->is_inline_check, true ) . '</xmp>';
		echo '<xmp class="_om-global-override" style="display:none;">$global_override?: ' . print_r( $this->global_override, true ) . '</xmp>';
		echo '<xmp class="_om-optin" style="display:none;">$optin: ' . print_r( $this->optin, true ) . '</xmp>';
	}
}

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