ROBOP

The code is wrapped inside an immediately-invoked function expression (IIFE) (function(){ ... })() to create a local scope for the code.

The code defines several variables such as port, portname, base_debug, and back_debug to be used later.

The function BaseOnPortMessage is defined, which handles the messages received from the extension's background script. It checks the validity of the message and performs specific actions based on the message's functionName.

The function BaseOnPortDisconnect is defined, which handles the disconnection of the port. It clears the port reference and attempts to reconnect after a timeout.

The function Baseconnect is defined, responsible for establishing a connection with the native messaging port. It sets up listeners for message and disconnect events.

The Baseconnect function is called to initiate the connection.

Debug logging statements are printed if the back_debug flag is set.

The variable roboputil_script is declared.