public function toggle_topic_notice() {

		// Bail if missing topic toggle action
		if ( ! bbp_is_get_request() || empty( $_GET['topic_id'] ) || empty( $_GET['bbp_topic_toggle_notice'] ) ) {
			return;
		}

		// Bail if not an allowed notice
		$notice = sanitize_key( $_GET['bbp_topic_toggle_notice'] );
		if ( empty( $notice ) || ! in_array( $notice, $this->get_allowed_notice_toggles(), true ) ) {
			return;
		}

		// Bail if no topic_id or notice
		$topic_id = bbp_get_topic_id( $_GET['topic_id'] );
		if (  empty( $topic_id ) ) {
			return;
		}

		// Bail if topic is missing
		if ( ! bbp_get_topic( $topic_id ) ) {
			return;
		}

		// Use the title in the responses
		$topic_title = bbp_get_topic_title( $topic_id );
		$is_failure  = ! empty( $_GET['failed'] );
		$message     = '';

		// Which notice?
		switch ( $notice ) {
			case 'opened'    :
				$message = ( $is_failure === true )
					? sprintf( esc_html__( 'There was a problem opening the topic "%1$s".', 'bbpress' ), $topic_title )
					: sprintf( esc_html__( 'Topic "%1$s" successfully opened.',             'bbpress' ), $topic_title );
				break;

			case 'closed'    :
				$message = ( $is_failure === true )
					? sprintf( esc_html__( 'There was a problem closing the topic "%1$s".', 'bbpress' ), $topic_title )
					: sprintf( esc_html__( 'Topic "%1$s" successfully closed.',             'bbpress' ), $topic_title );
				break;

			case 'super_sticky' :
				$message = ( $is_failure === true )
					? sprintf( esc_html__( 'There was a problem sticking the topic "%1$s" to front.', 'bbpress' ), $topic_title )
					: sprintf( esc_html__( 'Topic "%1$s" successfully stuck to front.',               'bbpress' ), $topic_title );
				break;

			case 'stuck'   :
				$message = ( $is_failure === true )
					? sprintf( esc_html__( 'There was a problem sticking the topic "%1$s".', 'bbpress' ), $topic_title )
					: sprintf( esc_html__( 'Topic "%1$s" successfully stuck.',               'bbpress' ), $topic_title );
				break;

			case 'unstuck' :
				$message = ( $is_failure === true )
					? sprintf( esc_html__( 'There was a problem unsticking the topic "%1$s".', 'bbpress' ), $topic_title )
					: sprintf( esc_html__( 'Topic "%1$s" successfully unstuck.',               'bbpress' ), $topic_title );
				break;

			case 'spammed'   :
				$message = ( $is_failure === true )
					? sprintf( esc_html__( 'There was a problem marking the topic "%1$s" as spam.', 'bbpress' ), $topic_title )
					: sprintf( esc_html__( 'Topic "%1$s" successfully marked as spam.',             'bbpress' ), $topic_title );
				break;

			case 'unspammed' :
				$message = ( $is_failure === true )
					? sprintf( esc_html__( 'There was a problem unmarking the topic "%1$s" as spam.', 'bbpress' ), $topic_title )
					: sprintf( esc_html__( 'Topic "%1$s" successfully unmarked as spam.',             'bbpress' ), $topic_title );
				break;

			case 'approved'   :
				$message = ( $is_failure === true )
					? sprintf( esc_html__( 'There was a problem approving the topic "%1$s".', 'bbpress' ), $topic_title )
					: sprintf( esc_html__( 'Topic "%1$s" successfully approved.',             'bbpress' ), $topic_title );
				break;

			case 'unapproved' :
				$message = ( $is_failure === true )
					? sprintf( esc_html__( 'There was a problem unapproving the topic "%1$s".', 'bbpress' ), $topic_title )
					: sprintf( esc_html__( 'Topic "%1$s" successfully unapproved.',             'bbpress' ), $topic_title );
				break;
		}

		// Do additional topic toggle notice filters (admin side)
		$message = apply_filters( 'bbp_toggle_topic_notice_admin', $message, $topic_id, $notice, $is_failure );
		$class   = ( $is_failure === true )
			? 'error'
			: 'updated';

		// Add the notice
		bbp_admin()->add_notice( $message, $class, true );
	}