= (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.
		$number_of_plugins_differ = count( self::$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 );
	}

	/**
	 * Add the plugin to the set of disconnected ones.
	 *
	 * @param string $slug Plugin slug.
	 *
	 * @return bool
	 */
	public static function disable_plugin( $slug ) {
		$disconnects = self::get_all_disabled_plugins();

		if ( ! in_array( $slug, $disconnects, true ) ) {
			$disconnects[] = $slug;
			update_option( self::PLUGINS_DISABLED_OPTION_NAME, $disconnects );
		}

		return true;
	}

	/**
	 * Remove the plugin from the set of disconnected ones.
	 *
	 * @param string $slug Plugin slug.
	 *
	 * @return bool
	 */
	public static function enable_plugin( $slug ) {
		$disconnects = self::get_all_disabled_plugins();

		$slug_index = array_search( $slug, $disconnects, true );
		if ( false !== $slug_index ) {
			unset( $disconnects[ $slug_index ] );
			update_option( self::PLUGINS_DISABLED_OPTION_NAME, $disconnects );
		}

		return true;
	}

	/**
	 * Get all plugins that were disconnected by user.
	 *
	 * @return array
	 */
	public static function get_all_disabled_plugins() {
		return (array) get_option( self::PLUGINS_DISABLED_OPTION_NAME, array() );
	}

}