Refactor Chat Handlers to Simplify Initialization

[Darshan808]

Fixes #1256

Description

Refactored BaseChatHandler to include logs_dir and retriever as required arguments, simplifying the initialization of /ask, /generate, and /learn handlers. This removes the need for custom arguments in AskChatHandler and GenerateChatHandler.

LearnChatHandler now automatically binds itself to self.retriever, allowing /ask to perform RAG without extra logic.

Looking for feedback on any potential edge cases this might introduce!

[Darshan808]

@dlqqq
As discussed in this comment #1115 (comment), should we also address the issue of moving entry points logic from extension.py to ConfigManager in this PR? If so, I'd be happy to do this with a little guidance.

[dlqqq]

@Darshan808 Thanks for working on this! I left a comment on the thread above.

should we also address the issue of moving entry points logic from extension.py to ConfigManager in this PR?

Really glad that you're thinking about this! 🤗 I recommend that this be done in a separate issue with a separate PR. Maintainers should keep their PRs focused and narrow in scope to prevent large code changes from being made all-at-once before others have a chance to review.

If you'd like to work on moving the entry points logic to the ConfigManager, it would be best to create a new issue for that. I also recommend including a basic design to describe the API changes to ConfigManager (e.g. what new properties / methods will be added?).

[Darshan808]

@dlqqq
Could you please give it a final review. And if everything here is okay, I believe we can safely merge this and continue our work on #1249

[dlqqq]

@Darshan808 Thanks! Great work on this PR, just a couple more issues to address.

[dlqqq]

@Darshan808 Perfect, thank you! ❤️

This will likely need a manual backport to the 2.x branch. Can you help with that?

[dlqqq]

@meeseeksdev please backport to 2.x

[lumberbot-app]

Owee, I'm MrMeeseeks, Look at me.

There seem to be a conflict, please backport manually. Here are approximate instructions:

1. Checkout backport branch and update it.

git checkout 2.x
git pull

2. Cherry pick the first parent branch of the this PR on top of the older branch:

git cherry-pick -x -m1 055d7b8534eaaaa9b036fec806162da1c571f089

3. You will likely have some merge/cherry-pick conflict here, fix them and commit:

git commit -am 'Backport PR #1257: Refactor Chat Handlers to Simplify Initialization'

4. Push to a named branch:

git push YOURFORK 2.x:auto-backport-of-pr-1257-on-2.x

5. Create a PR against branch 2.x, I would have named this PR:

"Backport PR #1257 on branch 2.x (Refactor Chat Handlers to Simplify Initialization)"

And apply the correct labels and milestones.

Congratulations — you did some good work! Hopefully your backport PR will be tested by the continuous integration and merged soon!

Remember to remove the Still Needs Manual Backport label once the PR gets merged.

If these instructions are inaccurate, feel free to suggest an improvement.

[Darshan808]

@dlqqq
A failing test in #1266 reveals a bug in this section. I’ve described the issue in #1266 (comment).
I think the CI passed here only because the test is marked as skipped:

@pytest.mark.skip("TODO v3: replace this with a unit test for YChatHistory")

What do you suggest ? Should we open a separate PR to address this issue ?

[srdas]

@Darshan808 @dlqqq As I was working on PR #1264 (unrelated to this one and not merged), I had to rebase/merge my branch to include the changes made here in this PR. After I did that, I noticed that the chat panel is not returning a response any more and just hangs, see:

The console log shows this error:

I cleaned out my entire conda environment, reinstalled it, and installed the developer version of Jupyter AI so that it includes the unreleased but merged PRs. I have used the main branch which does not contain changes from my PR, and I still get the error. @Darshan808 - can you check if the error I am getting is also evident in your installation? Thanks for the help.

[Darshan808]

Hi @srdas, my apologies for the oversight. I just checked this branch and can confirm that the issue persists. It is caused by the problem described in #1266 (comment). which has already been addressed in #1268.

@dlqqq, could you please review #1268 ? I believe it would be best to merge it as soon as possible to resolve this. Thanks!

[srdas]

@Darshan808 Thanks for responding so quickly and noting this -- I'll test it after PR #1268 is merged.

[Darshan808]

@srdas Just letting you know that PR #1268 has been merged.

[srdas]

Thanks @Darshan808 - I tested it for v3 and v2 and it is now working after the merge.

[Darshan808]

Is it logging the same error message ? It worked for me when I tested the branch. Could you share any helpful error message. I'll definitely look into it.

[srdas]

Is it logging the same error message ? It worked for me when I tested the branch. Could you share any helpful error message. I'll definitely look into it.

Sorry, it is working, my error, I typed "not" instead of "now" in my message. Apologies for the confusion.