Feature request: dynamic messages and default values

[izeau]

Description:

It'd be awesome if we could use answers from previous questions in our question messages and default values.

Current Limitations:

Right now, all our prompts and defaults are static and can't adapt based on previous answers.

Proposed Changes:

1. Dynamic Messages: Let us use answers from earlier questions in new question prompts.

   questions:
    - name: player_name
      required: true
      prompt:
        message: What's your name?
   
    - name: player_age
      required: true
      prompt:
        message: And how old are you, {{ .Scaffold.player_name }}?

2. Dynamic Default Values: Use previous answers to set default values with interpolations.

   questions:
    - name: player_name
      required: true
      prompt:
        message: What's your name?
   
    - name: player_alias
      required: true
      prompt:
        message: Now, pick an alias
        default: |-
          {{ regexReplaceAll "[^a-z]+" (.Scaffold.player_name | lower) "_" }}

Benefits:

• Better Experience: More personalized and relevant questions.
• Fewer Mistakes: Auto-suggested values cut down on errors.
• More Flexible: Makes the questionnaire more adaptable.

What do you think?

[hay-kot]

I like it! Fully support adding this, few things I can offer on the implementation:

1. I don't know if this would be possible. I'm doing some pretty nargly things to get templating to work for the when field and I don't see a clear way to add support for this. It may require upstream changes in the huh library. - Which is to say, this will probably be more difficult that it initially seems.
2. Important that we support all types of default values, list of strings is the only other one I can think of.
3. For the templates for the when field, properties from preview inputs are available at top level ({{ .player_name}} vs {{ .Scaffold.player_name }}) I think this makes sense because none of the other top level properties are available.

Happy to work together to get this done, but my summer is pretty packed so may be gaps between when I can reply!

[izeau]

Hello! It looks like dynamic forms are on the roadmap for huh, but are not available yet. In the meantime they recommend using separate forms, but that kind of breaks the workflow I guess? I think we should wait until this is released :)

Enjoy your summer!