bp_activity_catch_transition_post_type_status( string $new_status, string $old_status, object $post )

function bp_activity_catch_transition_post_type_status( $new_status, $old_status, $post ) {
	if ( ! post_type_supports( $post->post_type, 'buddypress-activity' ) ) {
		return;
	}

	// This is an edit.
	if ( $new_status === $old_status ) {
		// An edit of an existing post should update the existing activity item.
		if ( $new_status == 'publish' ) {
			$edit = bp_activity_post_type_update( $post );

			// Post was never recorded into activity feed, so record it now!
			if ( null === $edit ) {
				bp_activity_post_type_publish( $post->ID, $post );
			}

		// Allow plugins to eventually deal with other post statuses.
		} else {
			/**
			 * Fires when editing the post and the new status is not 'publish'.
			 *
			 * This is a variable filter that is dependent on the post type
			 * being untrashed.
			 *
			 * @since BuddyPress 2.5.0
			 *
			 * @param WP_Post $post Post data.
			 * @param string $new_status New status for the post.
			 * @param string $old_status Old status for the post.
			 */
			do_action( 'bp_activity_post_type_edit_' . $post->post_type, $post, $new_status, $old_status );
		}

		return;
	}

	// Publishing a previously unpublished post.
	if ( 'publish' === $new_status ) {
		// Untrashing the post type - nothing here yet.
		if ( 'trash' == $old_status ) {

			/**
			 * Fires if untrashing post in a post type.
			 *
			 * This is a variable filter that is dependent on the post type
			 * being untrashed.
			 *
			 * @since BuddyPress 2.2.0
			 *
			 * @param WP_Post $post Post data.
			 */
			do_action( 'bp_activity_post_type_untrash_' . $post->post_type, $post );
		} else {
			// Record the post.
			bp_activity_post_type_publish( $post->ID, $post );
		}

	// Unpublishing a previously published post.
	} elseif ( 'publish' === $old_status ) {
		// Some form of pending status - only remove the activity entry.
		bp_activity_post_type_unpublish( $post->ID, $post );

	// For any other cases, allow plugins to eventually deal with it.
	} else {
		/**
		 * Fires when the old and the new post status are not 'publish'.
		 *
		 * This is a variable filter that is dependent on the post type
		 * being untrashed.
		 *
		 * @since BuddyPress 2.5.0
		 *
		 * @param WP_Post $post Post data.
		 * @param string $new_status New status for the post.
		 * @param string $old_status Old status for the post.
		 */
		do_action( 'bp_activity_post_type_transition_status_' . $post->post_type, $post, $new_status, $old_status );
	}
}