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Filename : class-wordads.php
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<?php
/**
 * Main WordAds file.
 *
 * @package automattic/jetpack
 */

use Automattic\Jetpack\Status\Host;

define( 'WORDADS_ROOT', __DIR__ );
define( 'WORDADS_BASENAME', plugin_basename( __FILE__ ) );
define( 'WORDADS_FILE_PATH', WORDADS_ROOT . '/' . basename( __FILE__ ) );
define( 'WORDADS_URL', plugins_url( '/', __FILE__ ) );
define( 'WORDADS_API_TEST_ID', '26942' );
define( 'WORDADS_API_TEST_ID2', '114160' );

require_once WORDADS_ROOT . '/php/class-wordads-sidebar-widget.php';
require_once WORDADS_ROOT . '/php/class-wordads-api.php';
require_once WORDADS_ROOT . '/php/class-wordads-cron.php';
require_once WORDADS_ROOT . '/php/class-wordads-california-privacy.php';
require_once WORDADS_ROOT . '/php/class-wordads-ccpa-do-not-sell-link-widget.php';
require_once WORDADS_ROOT . '/php/class-wordads-consent-management-provider.php';
require_once WORDADS_ROOT . '/php/class-wordads-smart.php';
require_once WORDADS_ROOT . '/php/class-wordads-shortcode.php';

/**
 * Primary WordAds class.
 */
class WordAds {

	/**
	 * Ads parameters.
	 *
	 * @var null
	 */
	public $params = null;

	/**
	 * Ads.
	 *
	 * @var array
	 */
	public $ads = array();

	/**
	 * Array of supported ad types.
	 *
	 * @var array
	 */
	public static $ad_tag_ids = array(
		'mrec'               => array(
			'tag'    => '300x250_mediumrectangle',
			'height' => '250',
			'width'  => '300',
		),
		'leaderboard'        => array(
			'tag'    => '728x90_leaderboard',
			'height' => '90',
			'width'  => '728',
		),
		'mobile_leaderboard' => array(
			'tag'    => '320x50_mobileleaderboard',
			'height' => '50',
			'width'  => '320',
		),
		'wideskyscraper'     => array(
			'tag'    => '160x600_wideskyscraper',
			'height' => '600',
			'width'  => '160',
		),
	);

	/**
	 * Mapping array of location slugs to placement ids
	 *
	 * @var array
	 */
	public static $ad_location_ids = array(
		'top'           => 110,
		'belowpost'     => 120,
		'belowpost2'    => 130,
		'sidebar'       => 140,
		'widget'        => 150,
		'gutenberg'     => 200,
		'inline'        => 310,
		'inline-plugin' => 320,
	);

	/**
	 * Mapping array of form factor slugs to form factor ids
	 *
	 * @var array
	 */
	public static $form_factor_ids = array(
		'square'      => '001', // 250x250
		'leaderboard' => '002', // 728x90
		'skyscraper'  => '003', // 120x600
	);

	/**
	 * Counter to enable unique, sequential section IDs for all amp-ad units
	 *
	 * @var int
	 */
	public static $amp_section_id = 1;

	/**
	 * Solo unit CSS string.
	 *
	 * @var string
	 */
	public static $solo_unit_css = 'float:left;margin-right:5px;margin-top:0px;';

	/**
	 * Checks for AMP support and returns true iff active & AMP request
	 *
	 * @return boolean True if supported AMP request
	 *
	 * @since 7.5.0
	 */
	public static function is_amp() {
		return class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request();
	}

	/**
	 * Increment the AMP section ID and return the value
	 *
	 * @return int
	 */
	public static function get_amp_section_id() {
		return self::$amp_section_id++;
	}

	/**
	 * Convenience function for grabbing options from params->options
	 *
	 * @param  string $option the option to grab.
	 * @param  mixed  $default (optional).
	 * @return mixed option or $default if not set
	 *
	 * @since 4.5.0
	 */
	public function option( $option, $default = false ) {
		if ( ! isset( $this->params->options[ $option ] ) ) {
			return $default;
		}

		return $this->params->options[ $option ];
	}

	/**
	 * Returns the ad tag property array for supported ad types.
	 *
	 * @return array      array with ad tags
	 *
	 * @since 7.1.0
	 */
	public function get_ad_tags() {
		return self::$ad_tag_ids;
	}

	/**
	 * Returns the solo css for unit
	 *
	 * @return string the special css for solo units
	 *
	 * @since 7.1.0
	 */
	public function get_solo_unit_css() {
		return self::$solo_unit_css;
	}

	/**
	 * Instantiate the plugin
	 *
	 * @since 4.5.0
	 */
	public function __construct() {
		add_action( 'wp', array( $this, 'init' ) );
		add_action( 'rest_api_init', array( $this, 'init' ) );
		add_action( 'widgets_init', array( $this, 'widget_callback' ) );

		if ( is_admin() ) {
			WordAds_California_Privacy::init_ajax_actions();
			WordAds_Consent_Management_Provider::init_ajax_actions();
		}
	}

	/**
	 * Code to run on WordPress 'init' hook
	 *
	 * @since 4.5.0
	 */
	public function init() {
		require_once WORDADS_ROOT . '/php/class-wordads-params.php';
		$this->params = new WordAds_Params();

		if ( $this->should_bail() || self::is_infinite_scroll() ) {
			return;
		}

		if ( is_admin() ) {
			require_once WORDADS_ROOT . '/php/class-wordads-admin.php';
			return;
		}

		$this->insert_adcode();

		// Include California Privacy Act related features if enabled.
		if ( $this->params->options['wordads_ccpa_enabled'] ) {
			WordAds_California_Privacy::init();
		}

		// Initialize CMP  if enabled.
		if ( isset( $this->params->options['wordads_cmp_enabled'] ) && $this->params->options['wordads_cmp_enabled'] ) {
			WordAds_Consent_Management_Provider::init();
		}

		// Initialize [wordads] shortcode.
		WordAds_Shortcode::init();

		// Initialize Smart.
		WordAds_Smart::instance()->init( $this->params );

		if ( ( isset( $_SERVER['REQUEST_URI'] ) && '/ads.txt' === $_SERVER['REQUEST_URI'] )
			|| ( site_url( 'ads.txt', 'relative' ) === $_SERVER['REQUEST_URI'] ) ) {

			$ads_txt_transient = get_transient( 'wordads_ads_txt' );

			if ( false === ( $ads_txt_transient ) ) {
				$wordads_ads_txt   = WordAds_API::get_wordads_ads_txt();
				$ads_txt_transient = is_wp_error( $wordads_ads_txt ) ? '' : $wordads_ads_txt;
				set_transient( 'wordads_ads_txt', $ads_txt_transient, DAY_IN_SECONDS );
			}

			/**
			 * Provide plugins a way of modifying the contents of the automatically-generated ads.txt file.
			 *
			 * @module wordads
			 *
			 * @since 6.1.0
			 *
			 * @param string WordAds_API::get_wordads_ads_txt() The contents of the ads.txt file.
			 */
			$ads_txt_content = apply_filters( 'wordads_ads_txt', $ads_txt_transient );

			http_response_code( 200 );
			header( 'Content-Type: text/plain; charset=utf-8' );
			echo esc_html( $ads_txt_content );
			die( 0 );
		}
	}

	/**
	 * Check for Jetpack's The_Neverending_Home_Page and use got_infinity
	 *
	 * @return boolean true if load came from infinite scroll
	 *
	 * @since 4.5.0
	 */
	public static function is_infinite_scroll() {
		return class_exists( 'The_Neverending_Home_Page' ) && The_Neverending_Home_Page::got_infinity();
	}

	/**
	 * Add the actions/filters to insert the ads. Checks for mobile or desktop.
	 *
	 * @since 4.5.0
	 */
	private function insert_adcode() {
		add_filter( 'wp_resource_hints', array( $this, 'resource_hints' ), 10, 2 );
		add_action( 'wp_head', array( $this, 'insert_head_meta' ), 20 );
		add_action( 'wp_head', array( $this, 'insert_head_iponweb' ), 30 );
		add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
		add_filter( 'wordads_ads_txt', array( $this, 'insert_custom_adstxt' ) );

		/**
		 * Filters enabling ads in `the_content` filter
		 *
		 * @see https://jetpack.com/support/ads/
		 *
		 * @module wordads
		 *
		 * @since 5.8.0
		 *
		 * @param bool True to disable ads in `the_content`
		 */
		if ( ! apply_filters( 'wordads_content_disable', false ) ) {
			add_filter( 'the_content', array( $this, 'insert_ad' ) );
		}

		/**
		 * Filters enabling ads in `the_excerpt` filter
		 *
		 * @see https://jetpack.com/support/ads/
		 *
		 * @module wordads
		 *
		 * @since 5.8.0
		 *
		 * @param bool True to disable ads in `the_excerpt`
		 */
		if ( ! apply_filters( 'wordads_excerpt_disable', false ) ) {
			add_filter( 'the_excerpt', array( $this, 'insert_ad' ) );
		}

		if ( $this->option( 'enable_header_ad', true ) ) {
			if ( self::is_amp() ) {
				add_filter( 'the_content', array( $this, 'insert_header_ad_amp' ) );
			} else {
				add_action( 'wordads_header_ad', array( $this, 'insert_header_ad' ), 100 );
				add_action( 'wp_footer', array( $this, 'insert_header_ad' ), 100 );
			}
		}
	}

	/**
	 * Register desktop scripts and styles
	 *
	 * @since 4.5.0
	 */
	public function enqueue_scripts() {
		wp_enqueue_style(
			'wordads',
			WORDADS_URL . 'css/style.css',
			array(),
			'2015-12-18'
		);
	}

	/**
	 * Add the IPW resource hints
	 *
	 * @since 7.9
	 *
	 * @param array  $hints Domains for hinting.
	 * @param string $relation_type Resource type.
	 *
	 * @return array Domains for hinting.
	 */
	public function resource_hints( $hints, $relation_type ) {
		if ( 'dns-prefetch' === $relation_type ) {
			$hints[] = '//s.pubmine.com';
			$hints[] = '//x.bidswitch.net';
			$hints[] = '//static.criteo.net';
			$hints[] = '//ib.adnxs.com';
			$hints[] = '//aax.amazon-adsystem.com';
			$hints[] = '//bidder.criteo.com';
			$hints[] = '//cas.criteo.com';
			$hints[] = '//gum.criteo.com';
			$hints[] = '//ads.pubmatic.com';
			$hints[] = '//gads.pubmatic.com';
			$hints[] = '//tpc.googlesyndication.com';
			$hints[] = '//ad.doubleclick.net';
			$hints[] = '//googleads.g.doubleclick.net';
			$hints[] = '//www.googletagservices.com';
			$hints[] = '//cdn.switchadhub.com';
			$hints[] = '//delivery.g.switchadhub.com';
			$hints[] = '//delivery.swid.switchadhub.com';
		}

		return $hints;
	}

	/**
	 * IPONWEB metadata used by the various scripts
	 */
	public function insert_head_meta() {
		if ( self::is_amp() ) {
			return;
		}
		$hosting_type = ( new Host() )->is_woa_site() ? 1 : 2; // 1 = WPCOM, 2 = Jetpack.
		$pagetype     = (int) $this->params->get_page_type_ipw();
		$data_tags    = ( $this->params->cloudflare ) ? ' data-cfasync="false"' : '';
		$site_id      = $this->params->blog_id;
		$consent      = (int) isset( $_COOKIE['personalized-ads-consent'] );
		$is_logged_in = is_user_logged_in() ? '1' : '0';

		$disabled_slot_formats = apply_filters( 'wordads_disabled_slot_formats', array() );

		if ( apply_filters( 'wordads_iponweb_bottom_sticky_ad_disable', false ) ) {
			$disabled_slot_formats[] = 'MTS';
		}

		if ( apply_filters( 'wordads_iponweb_sidebar_sticky_right_ad_disable', false ) ) {
			$disabled_slot_formats[] = 'DPR';
		}

		$config    = array(
			'pt'                    => $pagetype,
			'ht'                    => $hosting_type,
			'tn'                    => get_stylesheet(),
			'uloggedin'             => $is_logged_in,
			'amp'                   => false,
			'siteid'                => $site_id,
			'consent'               => $consent,
			'ad'                    => array(
				'label'           => array(
					'text' => __( 'Advertisements', 'jetpack' ),
				),
				'reportAd'        => array(
					'text' => __( 'Report this ad', 'jetpack' ),
				),
				'privacySettings' => array(
					'text'    => __( 'Privacy', 'jetpack' ),
					'onClick' => 'js:function() { window.__tcfapi && window.__tcfapi(\'showUi\'); }',
				),
			),
			'disabled_slot_formats' => $disabled_slot_formats,
		);
		$js_config = WordAds_Array_Utils::array_to_js_object( $config );
		?>
		<script<?php echo esc_attr( $data_tags ); ?> type="text/javascript">
			var __ATA_PP = <?php echo $js_config; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>;
			var __ATA = __ATA || {};
			__ATA.cmd = __ATA.cmd || [];
			__ATA.criteo = __ATA.criteo || {};
			__ATA.criteo.cmd = __ATA.criteo.cmd || [];
		</script>
		<?php

		$section_id = $this->params->blog_id . 5;

		// Get below post tag.
		$tag_belowpost = $this->get_fallback_ad_snippet( $section_id, 'square', 'belowpost', '', '{{unique_id}}' );

		// Remove linebreaks and sanitize.
		$tag_belowpost = esc_js( str_replace( array( "\n", "\t", "\r" ), '', $tag_belowpost ) );

		// Get an inline tag with a macro as id handled on JS side to use as a fallback.
		$tag_inline = $this->get_fallback_ad_snippet( $section_id, 'square', 'inline', '', '{{unique_id}}' );

		// Remove linebreaks and sanitize.
		$tag_inline = esc_js( str_replace( array( "\n", "\t", "\r" ), '', $tag_inline ) );

		// Get top tag.
		$tag_top = $this->get_fallback_ad_snippet( $section_id, 'leaderboard', 'top', '', '{{unique_id}}' );

		// Remove linebreaks and sanitize.
		$tag_top = esc_js( str_replace( array( "\n", "\t", "\r" ), '', $tag_top ) );

		// phpcs:disable WordPress.Security.EscapeOutput.HeredocOutputNotEscaped
		echo <<<HTML
				<script type="text/javascript">
					var sas_fallback = sas_fallback || [];
					sas_fallback.push(
						{ tag: "$tag_inline", type: 'inline' },
						{ tag: "$tag_belowpost", type: 'belowpost' },
						{ tag: "$tag_top", type: 'top' }
					);
				</script>
HTML;
	}

	/**
	 * IPONWEB scripts in <head>
	 *
	 * @since 4.5.0
	 */
	public function insert_head_iponweb() {
		if ( self::is_amp() ) {
			return;
		}

		$data_tags = ( $this->params->cloudflare ) ? ' data-cfasync="false"' : '';
		?>
		<script<?php echo esc_attr( $data_tags ); ?> type="text/javascript">
		(function(){var g=Date.now||function(){return+new Date};function h(a,b){a:{for(var c=a.length,d="string"==typeof a?a.split(""):a,e=0;e<c;e++)if(e in d&&b.call(void 0,d[e],e,a)){b=e;break a}b=-1}return 0>b?null:"string"==typeof a?a.charAt(b):a[b]};function k(a,b,c){c=null!=c?"="+encodeURIComponent(String(c)):"";if(b+=c){c=a.indexOf("#");0>c&&(c=a.length);var d=a.indexOf("?");if(0>d||d>c){d=c;var e=""}else e=a.substring(d+1,c);a=[a.substr(0,d),e,a.substr(c)];c=a[1];a[1]=b?c?c+"&"+b:b:c;a=a[0]+(a[1]?"?"+a[1]:"")+a[2]}return a};var l=0;function m(a,b){var c=document.createElement("script");c.src=a;c.onload=function(){b&&b(void 0)};c.onerror=function(){b&&b("error")};a=document.getElementsByTagName("head");var d;a&&0!==a.length?d=a[0]:d=document.documentElement;d.appendChild(c)}function n(a){var b=void 0===b?document.cookie:b;return(b=h(b.split("; "),function(c){return-1!=c.indexOf(a+"=")}))?b.split("=")[1]:""}function p(a){return"string"==typeof a&&0<a.length}
		function r(a,b,c){b=void 0===b?"":b;c=void 0===c?".":c;var d=[];Object.keys(a).forEach(function(e){var f=a[e],q=typeof f;"object"==q&&null!=f||"function"==q?d.push(r(f,b+e+c)):null!==f&&void 0!==f&&(e=encodeURIComponent(b+e),d.push(e+"="+encodeURIComponent(f)))});return d.filter(p).join("&")}function t(a,b){a||((window.__ATA||{}).config=b.c,m(b.url))}var u=Math.floor(1E13*Math.random()),v=window.__ATA||{};window.__ATA=v;window.__ATA.cmd=v.cmd||[];v.rid=u;v.createdAt=g();var w=window.__ATA||{},x="s.pubmine.com";
		w&&w.serverDomain&&(x=w.serverDomain);var y="//"+x+"/conf",z=window.top===window,A=window.__ATA_PP&&window.__ATA_PP.gdpr_applies,B="boolean"===typeof A?Number(A):null,C=window.__ATA_PP||null,D=z?document.referrer?document.referrer:null:null,E=z?window.location.href:document.referrer?document.referrer:null,F,G=n("__ATA_tuuid");F=G?G:null;var H=window.innerWidth+"x"+window.innerHeight,I=n("usprivacy"),J=r({gdpr:B,pp:C,rid:u,src:D,ref:E,tuuid:F,vp:H,us_privacy:I?I:null},"",".");
		(function(a){var b=void 0===b?"cb":b;l++;var c="callback__"+g().toString(36)+"_"+l.toString(36);a=k(a,b,c);window[c]=function(d){t(void 0,d)};m(a,function(d){d&&t(d)})})(y+"?"+J);}).call(this);
		</script>
		<?php
	}

	/**
	 * Insert the ad onto the page
	 *
	 * @since 4.5.0
	 *
	 * @param string $content HTML content.
	 */
	public function insert_ad( $content ) {
		// Don't insert ads in feeds, or for anything but the main display. (This is required for compatibility with the Publicize module).
		if ( is_feed() || ! is_main_query() || ! in_the_loop() ) {
			return $content;
		}
		/**
		 * Allow third-party tools to disable the display of in post ads.
		 *
		 * @module wordads
		 *
		 * @since 4.5.0
		 *
		 * @param bool true Should the in post unit be disabled. Default to false.
		 */
		$disable = apply_filters( 'wordads_inpost_disable', false );
		if ( ! $this->params->should_show() || $disable ) {
			return $content;
		}

		$ad_type = $this->option( 'wordads_house' ) ? 'house' : 'iponweb';
		return $content . $this->get_ad( 'belowpost', $ad_type );
	}

	/**
	 * Insert an inline ad into a post content
	 * Used for rendering the `wordads` shortcode.
	 *
	 * @since 6.1.0
	 *
	 * @param string $content HTML content.
	 */
	public function insert_inline_ad( $content ) {
		// Ad JS won't work in XML feeds.
		if ( is_feed() ) {
			return $content;
		}
		/**
		 * Allow third-party tools to disable the display of in post ads.
		 *
		 * @module wordads
		 *
		 * @since 4.5.0
		 *
		 * @param bool true Should the in post unit be disabled. Default to false.
		 */
		$disable = apply_filters( 'wordads_inpost_disable', false );
		if ( $disable ) {
			return $content;
		}

		$ad_type  = $this->option( 'wordads_house' ) ? 'house' : 'iponweb';
		$location = 'shortcode';

		// Not house ad and WATL enabled.
		// phpcs:disable WordPress.Security.NonceVerification.Recommended
		if ( 'house' !== $ad_type && ( isset( $_GET['wordads-logging'] ) && isset( $_GET[ $location ] ) && 'true' === $_GET[ $location ] ) ) {
			return $content . $this->get_watl_ad_html_tag( $location );
		}

		return $content . $this->get_ad( 'inline', $ad_type );
	}

	/**
	 * Inserts ad into header
	 *
	 * @since 4.5.0
	 */
	public function insert_header_ad() {
		/**
		 * Allow third-party tools to disable the display of header ads.
		 *
		 * @module wordads
		 *
		 * @since 4.5.0
		 *
		 * @param bool true Should the header unit be disabled. Default to false.
		 */
		if ( apply_filters( 'wordads_header_disable', false ) ) {
			return;
		}

		// Prevent multiple manual ads.
		if ( 2 <= did_action( 'wordads_header_ad' ) ) {
			return;
		}

		// Prevent placing an automatic ad if a manual ad has already been placed.
		if ( doing_action( 'wp_footer' ) && did_action( 'wordads_header_ad' ) ) {
			return;
		}

		// Prevent placing a manual ad if an automatic ad has already been placed.
		if ( doing_action( 'wordads_header_ad' ) && did_action( 'wp_footer' ) ) {
			return;
		}

		// Default ad placement to just after the <body> tag.
		$selector = 'body > :first-child';

		// Special theme cases.
		switch ( get_stylesheet() ) {
			case 'twentyseventeen':
				$selector = '#content';
				break;
			case 'twentyfifteen':
				$selector = '#main';
				break;
			case 'twentyfourteen':
				$selector = 'article';
				break;
		}

		// Don't relocate if the ad is being placed manually.
		if ( doing_action( 'wordads_header_ad' ) ) {
			$selector = '';
		}

		$section_id  = 0 === $this->params->blog_id ? WORDADS_API_TEST_ID : $this->params->blog_id . '2';
		$form_factor = $this->params->mobile_device ? 'square' : 'leaderboard';
		echo $this->get_dynamic_ad_snippet( $section_id, $form_factor, 'top', $selector ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
	}

	/**
	 * Header unit for AMP
	 *
	 * @param string $content Content of the page.
	 *
	 * @since 7.5.0
	 */
	public function insert_header_ad_amp( $content ) {

		$ad_type = $this->option( 'wordads_house' ) ? 'house' : 'iponweb';
		if ( 'house' === $ad_type ) {
			return $content;
		}
		return $this->get_ad( 'top_amp', $ad_type ) . $content;
	}

	/**
	 * Filter the latest ads.txt to include custom user entries. Strips any tags or whitespace.
	 *
	 * @param  string $adstxt The ads.txt being filtered.
	 * @return string         Filtered ads.txt with custom entries, if applicable.
	 *
	 * @since 6.5.0
	 */
	public function insert_custom_adstxt( $adstxt ) {
		if ( ! $this->option( 'wordads_custom_adstxt_enabled' ) ) {
			return $adstxt;
		}

		$custom_adstxt = trim( wp_strip_all_tags( $this->option( 'wordads_custom_adstxt' ) ) );
		if ( $custom_adstxt ) {
			$adstxt .= "\n\n#Jetpack - User Custom Entries\n";
			$adstxt .= $custom_adstxt . "\n";
		}

		return $adstxt;
	}

	/**
	 * Get the ad for the spot and type.
	 *
	 * @param  string $spot top, side, inline, or belowpost.
	 * @param  string $type iponweb or adsense.
	 */
	public function get_ad( $spot, $type = 'iponweb' ) {
		$snippet = '';
		if ( 'iponweb' === $type ) {
			$section_id = WORDADS_API_TEST_ID;
			$snippet    = '';

			if ( 'top' === $spot ) {
				// mrec for mobile, leaderboard for desktop.
				$section_id  = 0 === $this->params->blog_id ? WORDADS_API_TEST_ID : $this->params->blog_id . '2';
				$form_factor = $this->params->mobile_device ? 'square' : 'leaderboard';
				$snippet     = $this->get_dynamic_ad_snippet( $section_id, $form_factor, $spot );
			} elseif ( 'belowpost' === $spot ) {
				$section_id = 0 === $this->params->blog_id ? WORDADS_API_TEST_ID : $this->params->blog_id . '1';
				$snippet    = $this->get_dynamic_ad_snippet( $section_id, 'square', $spot );
			} elseif ( 'inline' === $spot ) {
				$section_id = 0 === $this->params->blog_id ? WORDADS_API_TEST_ID : $this->params->blog_id . '5';
				$snippet    = $this->get_dynamic_ad_snippet( $section_id, 'square', $spot );
			} elseif ( 'top_amp' === $spot ) {
				// Ad unit which can safely be inserted below title, above content in a variety of themes.
				$width   = 300;
				$height  = 250;
				$snippet = $this->get_ad_div( $spot, $this->get_amp_snippet( $height, $width ) );
			}
		} elseif ( 'house' === $type ) {
			$leaderboard = 'top' === $spot && ! $this->params->mobile_device;
			$snippet     = $this->get_house_ad( $leaderboard ? 'leaderboard' : 'mrec' );
			if ( 'belowpost' === $spot && $this->option( 'wordads_second_belowpost', true ) ) {
				$snippet .= $this->get_house_ad( $leaderboard ? 'leaderboard' : 'mrec' );
			}
		}

		return $snippet;
	}

	/**
	 * Returns the AMP snippet to be inserted
	 *
	 * @param  int $height Height.
	 * @param  int $width  Width.
	 * @return string
	 *
	 * @since 8.7
	 */
	public function get_amp_snippet( $height, $width ) {
		$height         = esc_attr( $height + 15 ); // this will ensure enough padding for "Report this ad".
		$width          = esc_attr( $width );
		$amp_section_id = esc_attr( self::get_amp_section_id() );
		$site_id        = esc_attr( $this->params->blog_id );
		return <<<HTML
		<amp-ad width="$width" height="$height"
		    type="pubmine"
		    data-siteid="$site_id"
		    data-section="$amp_section_id">
		</amp-ad>
HTML;
	}

	/**
	 * Compatibility function -- main functionality replaced with get_dynamic_ad_snippet
	 *
	 * @param  int    $section_id Ad section.
	 * @param  int    $height Ad height.
	 * @param  int    $width Ad width.
	 * @param  string $location Location.
	 * @param  string $css CSS.
	 *
	 * @return string
	 *
	 * @since 5.7
	 */
	public function get_ad_snippet( $section_id, $height, $width, $location = '', $css = '' ) {
		if ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() ) {
			return $this->get_amp_snippet( $height, $width );
		}

		$this->ads[] = array(
			'location' => $location,
			'width'    => $width,
			'height'   => $height,
		);

		if ( 'gutenberg' === $location ) {
			$ad_number = count( $this->ads ) . '-' . uniqid();
			$data_tags = $this->params->cloudflare ? ' data-cfasync="false"' : '';
			$css       = esc_attr( $css );

			$loc_id = 100;
			if ( ! empty( self::$ad_location_ids[ $location ] ) ) {
				$loc_id = self::$ad_location_ids[ $location ];
			}

			$loc_id = esc_js( $loc_id );
			return <<<HTML
			<div style="padding-bottom:15px;width:{$width}px;height:{$height}px;$css">
				<div id="atatags-{$ad_number}">
					<script$data_tags type="text/javascript">
					__ATA.cmd.push(function() {
						__ATA.initSlot('atatags-{$ad_number}',  {
							collapseEmpty: 'before',
							sectionId: '{$section_id}',
							location: {$loc_id},
							width: {$width},
							height: {$height}
						});
					});
					</script>
				</div>
			</div>
HTML;
		}

		$form_factor = 'square';
		if ( 250 > $width ) {
			$form_factor = 'skyscraper';
		} elseif ( 300 < $width ) {
			$form_factor = 'leaderboard';
		}

		return $this->get_dynamic_ad_snippet( $section_id, $form_factor, $location );
	}

	/**
	 * Returns the dynamic snippet to be inserted into the ad unit
	 *
	 * @param int           $section_id section_id.
	 * @param string        $form_factor form_factor.
	 * @param string        $location location.
	 * @param string        $relocate location to be moved after the fact for themes without required hook.
	 * @param string | null $id A unique string ID or placeholder.
	 *
	 * @return string
	 *
	 * @since 8.7
	 */
	public function get_dynamic_ad_snippet( $section_id, $form_factor = 'square', $location = '', $relocate = '', $id = null ) {

		// Allow overriding and printing of the tag parsed by the WATL.
		// phpcs:disable WordPress.Security.NonceVerification.Recommended
		$is_location_enabled = isset( $_GET['wordads-logging'] ) && isset( $_GET[ $location ] ) && 'true' === $_GET[ $location ];

		if ( ( 'top' === $location || 'belowpost' === $location ) && $is_location_enabled ) {
			return self::get_watl_ad_html_tag( $location );
		}

		return $this->get_fallback_ad_snippet( $section_id, $form_factor, $location, $relocate, $id );
	}

	/**
	 * Returns the fallback dynamic snippet to be inserted into the ad unit
	 *
	 * @param int           $section_id section_id.
	 * @param string        $form_factor form_factor.
	 * @param string        $location location.
	 * @param string        $relocate location to be moved after the fact for themes without required hook.
	 * @param string | null $id A unique string ID or placeholder.
	 *
	 * @return string
	 *
	 * @since 8.7
	 */
	public function get_fallback_ad_snippet( $section_id, $form_factor = 'square', $location = '', $relocate = '', $id = null ) {
		$div_id = 'atatags-' . $section_id . '-' . ( $id ?? uniqid() );
		$div_id = esc_attr( $div_id );

		// Default form factor.
		$form_factor_id = self::$form_factor_ids['square'];
		if ( isset( self::$form_factor_ids[ $form_factor ] ) ) {
			$form_factor_id = self::$form_factor_ids[ $form_factor ];
		}

		$loc_id = 100;
		if ( isset( self::$ad_location_ids[ $location ] ) ) {
			$loc_id = self::$ad_location_ids[ $location ];
		}

		$form_factor_id        = esc_js( $form_factor_id );
		$advertisements_text   = esc_js( __( 'Advertisements', 'jetpack' ) );
		$report_ad_text        = esc_js( __( 'Report this ad', 'jetpack' ) );
		$privacy_settings_text = esc_js( __( 'Privacy settings', 'jetpack' ) );

		$relocate_script = '';
		if ( ! empty( $relocate ) ) {
			$selector        = wp_json_encode( $relocate );
			$relocate_script = <<<JS
			<script type="text/javascript">
			var adNode       = document.getElementById( '{$div_id}' );
			var selector     = {$selector};
			var relocateNode = document.querySelector( selector );
			relocateNode.parentNode.insertBefore( adNode, relocateNode );
			</script>
JS;
		}

		return <<<HTML
		<div id="{$div_id}"></div>
		{$relocate_script}
		<script>
			__ATA.cmd.push(function() {
				__ATA.initDynamicSlot({
					id: '{$div_id}',
					location: {$loc_id},
					formFactor: '{$form_factor_id}',
					label: {
						text: '{$advertisements_text}',
					},
					creative: {
						reportAd: {
							text: '{$report_ad_text}',
						},
						privacySettings: {
							text: '{$privacy_settings_text}',
							onClick: function() { window.__tcfapi && window.__tcfapi('showUi'); },
						}
					}
				});
			});
		</script>
HTML;
	}

	/**
	 * Returns the complete ad div with snippet to be inserted into the page
	 *
	 * @param  string $spot top, side, inline, or belowpost.
	 * @param  string $snippet The snippet to insert into the div.
	 * @param  array  $css_classes CSS classes.
	 * @return string The supporting ad unit div.
	 *
	 * @since 7.1
	 */
	public function get_ad_div( $spot, $snippet, array $css_classes = array() ) {
		if ( strpos( strtolower( $spot ), 'amp' ) === false && ! 'inline' === $spot ) {
			return $snippet; // we don't want dynamic ads to be inserted for AMP & Gutenberg.
		}

		if ( empty( $css_classes ) ) {
			$css_classes = array();
		}

		$css_classes[] = 'wpcnt';
		if ( 'top' === $spot ) {
			$css_classes[] = 'wpcnt-header';
		}

		$spot    = esc_attr( $spot );
		$classes = esc_attr( implode( ' ', $css_classes ) );
		$about   = esc_html__( 'Advertisements', 'jetpack' );
		return <<<HTML
		<div class="$classes">
			<div class="wpa">
				<span class="wpa-about">$about</span>
				<div class="u $spot">
					$snippet
				</div>
			</div>
		</div>
HTML;
	}

	/**
	 * Check the reasons to bail before we attempt to insert ads.
	 *
	 * @return true if we should bail (don't insert ads)
	 *
	 * @since 4.5.0
	 */
	public function should_bail() {
		return ! $this->option( 'wordads_approved' ) || (bool) $this->option( 'wordads_unsafe' );
	}

	/**
	 * Returns markup for HTML5 house ad base on unit
	 *
	 * @param  string $unit mrec, widesky, or leaderboard.
	 * @return string       markup for HTML5 house ad
	 *
	 * @since 4.7.0
	 */
	public function get_house_ad( $unit = 'mrec' ) {

		switch ( $unit ) {
			case 'widesky':
				$width  = 160;
				$height = 600;
				break;
			case 'leaderboard':
				$width  = 728;
				$height = 90;
				break;
			case 'mrec':
			default:
				$width  = 300;
				$height = 250;
				break;
		}

		return <<<HTML
		<iframe
			src="https://s0.wp.com/wp-content/blog-plugins/wordads/house/html5/$unit/index.html"
			width="$width"
			height="$height"
			frameborder="0"
			scrolling="no"
			marginheight="0"
			marginwidth="0">
		</iframe>
HTML;
	}

	/**
	 * Returns the html ad tag used by WordAds Tag Library
	 *
	 * @param  string $slot_type e.g belowpost, gutenberg_rectangle.
	 *
	 * @return string
	 *
	 * @since 8.7
	 */
	public static function get_watl_ad_html_tag( string $slot_type ): string {
		return "<div class=\"wordads-tag\" data-slot-type=\"$slot_type\" style=\"display: none;\"></div>";
	}

	/**
	 * Activation hook actions
	 *
	 * @since 4.5.0
	 */
	public static function activate() {
		WordAds_API::update_wordads_status_from_api();
	}

	/**
	 * Registers the widgets.
	 */
	public function widget_callback() {
			register_widget( 'WordAds_Sidebar_Widget' );

			$ccpa_enabled = get_option( 'wordads_ccpa_enabled' );

		if ( $ccpa_enabled ) {
			register_widget( 'WordAds_Ccpa_Do_Not_Sell_Link_Widget' );
		}
	}
}

add_action( 'jetpack_activate_module_wordads', array( 'WordAds', 'activate' ) );
add_action( 'jetpack_activate_module_wordads', array( 'WordAds_Cron', 'activate' ) );
add_action( 'jetpack_deactivate_module_wordads', array( 'WordAds_Cron', 'deactivate' ) );

global $wordads;
$wordads = new WordAds();