Live TV: exception when using progressMode: bar

[plh1511]

Using v2.11.0 with Plex HTPC on Windows, I see this error when progressMode is set to bar and I watch live TV:

[27-11-2024 09:28:16 PM] [ERROR] [Server] An unexpected error occured in the Plex alert handler
Traceback (most recent call last):
  File "C:\Users\User\AppData\Local\discord-rich-presence-plex\core\plex.py", line 151, in tryHandleAlert
    self.handleAlert(alert)
  File "C:\Users\User\AppData\Local\discord-rich-presence-plex\core\plex.py", line 363, in handleAlert
    activity["timestamps"] = { "start": round(currentTimestamp - viewOffset), "end": round(currentTimestamp + (item.duration - viewOffset)) }
                                                                                                               ~~~~~~~~~~~~~~^~~~~~~~~~~~
TypeError: unsupported operand type(s) for -: 'NoneType' and 'int'

Discord status disappears.

If I change progressMode to elapsed, Discord will continue to be updated, but with 0 elapsed time. This doesn't happen with other content, like movies/shows (not live TV).

As an ugly workaround to let me continue using progressMode bar, I edited core/plex.py line 363:

	case "bar":
		activity["timestamps"] = { "start": round(currentTimestamp - viewOffset), "end": round(currentTimestamp + ((item.duration or 0) - viewOffset)) }

This gives me a progress bar of 00:00 to 00:00, but at least Discord is still being updated with everything else (correctly).