bp_activity_post_type_comment( int $comment_id, bool $is_approved = true, object|null $activity_post_object = null )

function bp_activity_post_type_comment( $comment_id = 0, $is_approved = true, $activity_post_object = null ) {
	// Get the users comment
	$post_type_comment = get_comment( $comment_id );

	// Don't record activity if the comment hasn't been approved
	if ( empty( $is_approved ) ) {
		return false;
	}

	// Don't record activity if no email address has been included
	if ( empty( $post_type_comment->comment_author_email ) ) {
		return false;
	}

	// Don't record activity if the comment has already been marked as spam
	if ( 'spam' === $is_approved ) {
		return false;
	}

	// Get the user by the comment author email.
	$user = get_user_by( 'email', $post_type_comment->comment_author_email );

	// If user isn't registered, don't record activity
	if ( empty( $user ) ) {
		return false;
	}

	// Get the user_id
	$user_id = (int) $user->ID;

	// Get blog and post data
	$blog_id = get_current_blog_id();

	// Get the post
	$post_type_comment->post = get_post( $post_type_comment->comment_post_ID );

	if ( ! is_a( $post_type_comment->post, 'WP_Post' ) ) {
		return false;
	}

	/**
	 * Filters whether to publish activities about the comment regarding the post status
	 *
	 * @since BuddyPress 2.5.0
	 *
	 * @param bool true to bail, false otherwise.
	 */
	$is_post_status_not_allowed = (bool) apply_filters( 'bp_activity_post_type_is_post_status_allowed', 'publish' !== $post_type_comment->post->post_status || ! empty( $post_type_comment->post->post_password ) );

	// If this is a password protected post, or not a public post don't record the comment
	if ( $is_post_status_not_allowed ) {
		return false;
	}

	// Set post type
	$post_type = $post_type_comment->post->post_type;

	if ( empty( $activity_post_object ) ) {
		// Get the post type tracking args.
		$activity_post_object = bp_activity_get_post_type_tracking_args( $post_type );

		// Bail if the activity type does not exist
		if ( empty( $activity_post_object->comments_tracking->action_id ) ) {
			return false;
		}
	}

	// Set the $activity_comment_object
	$activity_comment_object = $activity_post_object->comments_tracking;

	/**
	 * Filters whether or not to post the activity about the comment.
	 *
	 * This is a variable filter, dependent on the post type,
	 * that lets components or plugins bail early if needed.
	 *
	 * @since BuddyPress 2.5.0
	 *
	 * @param bool $value      Whether or not to continue.
	 * @param int  $blog_id    ID of the current site.
	 * @param int  $post_id    ID of the current post being commented.
	 * @param int  $user_id    ID of the current user.
	 * @param int  $comment_id ID of the current comment being posted.
	 */
	if ( false === apply_filters( "bp_activity_{$post_type}_pre_comment", true, $blog_id, $post_type_comment->post->ID, $user_id, $comment_id ) ) {
		return false;
	}

	// Is this an update ?
	$activity_id = bp_activity_get_activity_id( array(
		'user_id'           => $user_id,
		'component'         => $activity_comment_object->component_id,
		'type'              => $activity_comment_object->action_id,
		'item_id'           => $blog_id,
		'secondary_item_id' => $comment_id,
	) );

	// Record this in activity feeds.
	$comment_link = get_comment_link( $post_type_comment->comment_ID );

	// Backward compatibility filters for the 'blogs' component.
	if ( 'blogs' == $activity_comment_object->component_id )  {
		$activity_content      = apply_filters_ref_array( 'bp_blogs_activity_new_comment_content',      array( $post_type_comment->comment_content, &$post_type_comment, $comment_link ) );
		$activity_primary_link = apply_filters_ref_array( 'bp_blogs_activity_new_comment_primary_link', array( $comment_link, &$post_type_comment ) );
	} else {
		$activity_content      = $post_type_comment->comment_content;
		$activity_primary_link = $comment_link;
	}

	$activity_args = array(
		'id'            => $activity_id,
		'user_id'       => $user_id,
		'content'       => $activity_content,
		'primary_link'  => $activity_primary_link,
		'component'     => $activity_comment_object->component_id,
		'recorded_time' => $post_type_comment->comment_date_gmt,
	);

	if ( bp_disable_blogforum_comments() ) {
		$blog_url = get_home_url( $blog_id );
		$post_url = add_query_arg(
			'p',
			$post_type_comment->post->ID,
			trailingslashit( $blog_url )
		);

		$activity_args['type']              = $activity_comment_object->action_id;
		$activity_args['item_id']           = $blog_id;
		$activity_args['secondary_item_id'] = $post_type_comment->comment_ID;

		if ( ! empty( $activity_args['content'] ) ) {
			// Create the excerpt.
			$activity_summary = bp_activity_create_summary( $activity_args['content'], $activity_args );

			// Backward compatibility filter for blog comments.
			if ( 'blogs' == $activity_post_object->component_id )  {
				$activity_args['content'] = apply_filters( 'bp_blogs_record_activity_content', $activity_summary, $activity_args['content'], $activity_args, $post_type );
			} else {
				$activity_args['content'] = $activity_summary;
			}
		}

		// Set up the action by using the format functions.
		$action_args = array_merge( $activity_args, array(
			'post_title' => $post_type_comment->post->post_title,
			'post_url'   => $post_url,
			'blog_url'   => $blog_url,
			'blog_name'  => get_blog_option( $blog_id, 'blogname' ),
		) );

		$activity_args['action'] = call_user_func_array( $activity_comment_object->format_callback, array( '', (object) $action_args ) );

		// Make sure the action is set.
		if ( empty( $activity_args['action'] ) ) {
			return;
		} else {
			// Backward compatibility filter for the blogs component.
			if ( 'blogs' === $activity_post_object->component_id )  {
				$activity_args['action'] = apply_filters( 'bp_blogs_record_activity_action', $activity_args['action'] );
			}
		}

		$activity_id = bp_activity_add( $activity_args );
	}

	/**
	 * Fires after the publishing of an activity item for a newly published post type post.
	 *
	 * @since BuddyPress 2.5.0
	 *
	 * @param int        $activity_id          ID of the newly published activity item.
	 * @param WP_Comment $post_type_comment    Comment object.
	 * @param array      $activity_args        Array of activity arguments.
	 * @param object     $activity_post_object the post type tracking args object.
	 */
	do_action_ref_array( 'bp_activity_post_type_comment', array( &$activity_id, $post_type_comment, $activity_args, $activity_post_object ) );

	return $activity_id;
}