new WP_Error( 'too_early', __( 'You cannot call this method until Jetpack Config is configured', 'jetpack-connection' ) );
		}

		if ( is_multisite() && get_current_blog_id() !== self::$current_blog_id ) {
			self::$plugins         = (array) get_option( self::ACTIVE_PLUGINS_OPTION_NAME, array() );
			self::$current_blog_id = get_current_blog_id();
		}

		return true;
	}

	/**
	 * Called once to configure this class after plugins_loaded.
	 *
	 * @return void
	 */
	public static function configure() {
		if ( self::$configured ) {
			return;
		}

		if ( is_multisite() ) {
			self::$current_blog_id = get_current_blog_id();
		}

		// If a plugin was activated or deactivated.
		// self::$plugins is populated in Config::ensure_options_connection().
		$number_of_plugins_differ = count( self::$plugins ) !== count( (array) get_option( self::ACTIVE_PLUGINS_OPTION_NAME, array() ) );

		if ( $number_of_plugins_differ || true === self::$refresh_connected_plugins ) {
			self::update_active_plugins_option();
		}

		self::$configured = true;
	}

	/**
	 * Updates the active plugins option with current list of active plugins.
	 *
	 * @return void
	 */
	public static function update_active_plugins_option() {
		// Note: Since this options is synced to wpcom, if you change its structure, you have to update the sanitizer at wpcom side.
		update_option( self::ACTIVE_PLUGINS_OPTION_NAME, self::$plugins );

		if ( ! class_exists( 'Automattic\Jetpack\Sync\Settings' ) || ! \Automattic\Jetpack\Sync\Settings::is_sync_enabled() ) {
			self::update_active_plugins_wpcom_no_sync_fallback();
		}
	}

	/**
	 * Add the plugin to the set of disconnected ones.
	 *
	 * @deprecated since 1.39.0.
	 *
	 * @param string $slug Plugin slug.
	 *
	 * @return bool
	 */
	public static function disable_plugin( $slug ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
		return true;
	}

	/**
	 * Remove the plugin from the set of disconnected ones.
	 *
	 * @deprecated since 1.39.0.
	 *
	 * @param string $slug Plugin slug.
	 *
	 * @return bool
	 */
	public static function enable_plugin( $slug ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
		return true;
	}

	/**
	 * Get all plugins that were disconnected by user.
	 *
	 * @deprecated since 1.39.0.
	 *
	 * @return array
	 */
	public static function get_all_disabled_plugins() { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
		return array();
	}

	/**
	 * Update active plugins option with current list of active plugins on WPCOM.
	 * This is a fallback to ensure this option is always up to date on WPCOM in case
	 * Sync is not present or disabled.
	 *
	 * @since 1.34.0
	 */
	private static function update_active_plugins_wpcom_no_sync_fallback() {
		$connection = new Manager();
		if ( ! $connection->is_connected() ) {
			return;
		}

		$site_id = \Jetpack_Options::get_option( 'id' );

		$body = wp_json_encode(
			array(
				'active_connected_plugins' => self::$plugins,
			)
		);

		Client::wpcom_json_api_request_as_blog(
			sprintf( '/sites/%d/jetpack-active-connected-plugins', $site_id ),
			'2',
			array(
				'headers' => array( 'content-type' => 'application/json' ),
				'method'  => 'POST',
			),
			$body,
			'wpcom'
		);
	}
}