<?php
/**
 * Class AnalyticsOptionsSubmenu
 *
 * @package AMP
 */

namespace AmpProject\AmpWP\Admin;

use AmpProject\AmpWP\Infrastructure\Registerable;
use AmpProject\AmpWP\Infrastructure\Service;

/**
 * Add a submenu link to the AMP options submenu.
 *
 * @since 2.0
 * @internal
 */
final class AnalyticsOptionsSubmenu implements Service, Registerable {

	/**
	 * The parent menu slug.
	 *
	 * @var string
	 */
	private $parent_menu_slug;

	/**
	 * Class constructor.
	 *
	 * @param OptionsMenu $options_menu An instance of the class handling the parent menu.
	 */
	public function __construct( OptionsMenu $options_menu ) {
		$this->parent_menu_slug = $options_menu->get_menu_slug();
	}

	/**
	 * Get the action to use for registering the service.
	 *
	 * @return string Registration action to use.
	 */
	public static function get_registration_action() {
		return 'admin_init';
	}

	/**
	 * Adds hooks.
	 */
	public function register() {
		add_action( 'admin_menu', [ $this, 'add_submenu_link' ], 99 );
	}

	/**
	 * Adds a submenu link to the AMP options submenu.
	 */
	public function add_submenu_link() {
		add_submenu_page(
			$this->parent_menu_slug,
			__( 'Analytics', 'amp' ),
			__( 'Analytics', 'amp' ),
			'manage_options',
			$this->parent_menu_slug . '#analytics-options',
			'__return_false',
			1
		);
	}
}
ob_start();

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