function bbp_topic_notices() {

	// Bail if not viewing a topic
	if ( ! bbp_is_single_topic() ) {
		return;
	}

	// Get the topic_status
	$topic_status = bbp_get_topic_status();

	// Get the topic status
	switch ( $topic_status ) {

		// Spam notice
		case bbp_get_spam_status_id() :
			$notice_text = esc_html__( 'This topic is marked as spam.', 'bbpress' );
			break;

		// Trashed notice
		case bbp_get_trash_status_id() :
			$notice_text = esc_html__( 'This topic is in the trash.', 'bbpress' );
			break;

		// Pending notice
		case bbp_get_pending_status_id() :
			$notice_text = esc_html__( 'This topic is pending moderation.', 'bbpress' );
			break;

		// Standard status
		default :
			$notice_text = '';
			break;
	}

	// Filter notice text and bail if empty
	$notice_text = apply_filters( 'bbp_topic_notices', $notice_text, $topic_status, bbp_get_topic_id() );
	if ( empty( $notice_text ) ) {
		return;
	}

	bbp_add_error( 'topic_notice', $notice_text, 'message' );
}