Added exportFormat parameter to LLMChatView

[nriedman]

LLMChatView exportFormat parameter

♻️ Current situation & Problem

Currently, the LLMChatView creates an instance of the ChatView by passing .pdf as the exportFormat. The result is that there is no way to change the export format or disable exporting entirely.

⚙️ Release Notes

Instead of passing .pdf to the ChatView, LLMChatView now has an optional parameter exportFormat that is passed to the ChatView. By default, it is .pdf (so the .init signature need not change), but can now take any of .pdf, .json, .text, or .none. If exportFormat is .none, no export button will appear in the toolbar.

📚 Documentation

The LLMChatView/init now has an optional new signature where the user passes in a value for exportFormat.

struct LLMChatTestView: View {
      // Use the convenience property wrapper to instantiate the `LLMMockSession`
     @LLMSessionProvider(schema: LLMMockSchema()) var llm: LLMMockSession
     @State var muted = true

     var body: some View {
         LLMChatView(session: $llm, exportFormat: .none)
             .speak(llm.context, muted: muted)
             .speechToolbarButton(muted: $muted)
     }
 }

Alternatively, the exportFormat parameter may be omitted, in which case the LLMChatView will default to .pdf.

✅ Testing

Export functionality is rigorously tested as part of the UI testing for the Spezi ChatView.

📝 Code of Conduct & Contributing Guidelines

By submitting creating this pull request, you agree to follow our Code of Conduct and Contributing Guidelines:

• I agree to follow the Code of Conduct and Contributing Guidelines.

[PSchmiedmayer]

Thank you for the PR @nriedman; amazing!

Feel free to request a review from @philippzagar once you are happy with the result of the PR and would like to get a review.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 30.19%. Comparing base (d6819a1) to head (e3f756d).

❗ Current head e3f756d differs from pull request most recent head c6d5e5b. Consider uploading reports for the commit c6d5e5b to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #48      +/-   ##
==========================================
+ Coverage   30.17%   30.19%   +0.03%     
==========================================
  Files          66       66              
  Lines        2891     2892       +1     
==========================================
+ Hits          872      873       +1     
  Misses       2019     2019              

Files	Coverage Δ
Sources/SpeziLLM/Views/LLMChatView.swift	91.67% <100.00%> (+0.24%)	⬆️

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[philippzagar]

Thanks so much for the PR @nriedman, greatly appreciated! 🚀
I had some minor change requests that I persisted as in-line comments. Feel free to actually build the documentation within Xcode and check out the result via Product > Build Documentation, that helps to resolve lots of issues I mentioned in the in-line comments 👍

[philippzagar]

Thanks @nriedman, just minor fixes left

[PSchmiedmayer]

@nriedman How are we doing with this PR? It would be great to get it merged so we can tag a release and use this in the main application 🚀

[philippzagar]

@nriedman Only one small adjustment necessary, then you should be good to go! 🚀

[philippzagar]

Thanks @PSchmiedmayer for the final changes!