refactor: Replace boolean with ui.Action enum

[rm-hull]

Replaces the boolean acceptance flag returned by TextArea with a more explicit ui.Action enum (Commit or Abort).

This refactoring:

• Improves clarity regarding the user's intended outcome (e.g.,
  ui.Commit vs. ui.Abort).
• Prepares the structure for easily introducing new user actions
  in the future.

[gemini-code-assist]

Summary of Changes

Hello @rm-hull, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request refactors the user interface interaction logic by replacing a generic boolean return value from the TextArea function with a more semantically meaningful ui.Action enum. This change enhances code readability by clearly indicating the user's intent (e.g., committing changes or aborting an operation) and establishes a robust foundation for incorporating additional user actions in subsequent development.

Highlights

• Improved Clarity with Enum: The boolean acceptance flag returned by the TextArea function has been replaced with a more explicit ui.Action enum, which can be either Commit or Abort.
• Future Extensibility: This refactoring prepares the codebase for easily introducing new user actions beyond just commit or abort in the future.

Using Gemini Code Assist

The full guide for Gemini Code Assist can be found on our documentation page, here are some quick tips.

Invoking Gemini

You can request assistance from Gemini at any point by creating a comment using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands on the current page.

Feature	Command	Description
Code Review	/gemini review	Performs a code review for the current pull request in its current state.
Pull Request Summary	/gemini summary	Provides a summary of the current pull request in its current state.
Comment	@gemini-code-assist	Responds in comments when explicitly tagged, both in pull request comments and review comments.
Help	/gemini help	Displays a list of available commands.

Customization

To customize Gemini Code Assist for GitHub experience, repository maintainers can create a configuration file and/or provide a custom code review style guide (such as PEP-8 for Python) by creating and adding files to a .gemini/ folder in the base of the repository. Detailed instructions can be found here.

Limitations & Feedback

Gemini Code Assist may make mistakes. Please leave feedback on any instances where its feedback is incorrect or counter productive. You can react with 👍 and 👎 on @gemini-code-assist comments. If you're interested in giving your feedback about your experience with Gemini Code Assist for Github and other Google products, sign up here.

You can also get AI-powered code generation, chat, as well as code reviews directly in the IDE at no cost with the Gemini Code Assist IDE Extension.

Footnotes

1. Review the Privacy Notices, Generative AI Prohibited Use Policy, Terms of Service, and learn how to configure Gemini Code Assist in GitHub here. Gemini can make mistakes, so double check it and use code with caution. ↩

[github-actions]

	Tests	Passed ✅	Skipped	Failed
JUnit Test Report	27 ran	27 passed	0 skipped	0 failed

Test	Result
JUnit Test Report
com/rm-hull/git-commit-summary/internal/app.TestNewApp	✅ passed
com/rm-hull/git-commit-summary/internal/app.TestAppRun/NotInWorkTree	✅ passed
com/rm-hull/git-commit-summary/internal/app.TestAppRun/StagedFilesError	✅ passed
com/rm-hull/git-commit-summary/internal/app.TestAppRun/NoStagedChanges	✅ passed
com/rm-hull/git-commit-summary/internal/app.TestAppRun/DiffError	✅ passed
com/rm-hull/git-commit-summary/internal/app.TestAppRun/LLMCallError	✅ passed
com/rm-hull/git-commit-summary/internal/app.TestAppRun/TextAreaError	✅ passed
com/rm-hull/git-commit-summary/internal/app.TestAppRun/UserAborted	✅ passed
com/rm-hull/git-commit-summary/internal/app.TestAppRun/CommitError	✅ passed
com/rm-hull/git-commit-summary/internal/app.TestAppRun/Success	✅ passed
com/rm-hull/git-commit-summary/internal/app.TestAppRun	✅ passed
com/rm-hull/git-commit-summary/internal/config.TestLoad/Defaults	✅ passed
com/rm-hull/git-commit-summary/internal/config.TestLoad/WithEnvironmentVariables	✅ passed
com/rm-hull/git-commit-summary/internal/config.TestLoad	✅ passed
com/rm-hull/git-commit-summary/internal/llm_provider.TestNewProvider/GoogleProvider	✅ passed
com/rm-hull/git-commit-summary/internal/llm_provider.TestNewProvider/OpenAIProvider	✅ passed
com/rm-hull/git-commit-summary/internal/llm_provider.TestNewProvider/UnknownProvider	✅ passed
com/rm-hull/git-commit-summary/internal/llm_provider.TestNewProvider	✅ passed
com/rm-hull/git-commit-summary/internal/ui.TestHistory/NewHistory	✅ passed
com/rm-hull/git-commit-summary/internal/ui.TestHistory/Add_and_Value	✅ passed
com/rm-hull/git-commit-summary/internal/ui.TestHistory/Undo	✅ passed
com/rm-hull/git-commit-summary/internal/ui.TestHistory/Redo	✅ passed
com/rm-hull/git-commit-summary/internal/ui.TestHistory/Undo_at_beginning	✅ passed
com/rm-hull/git-commit-summary/internal/ui.TestHistory/Redo_at_end	✅ passed
com/rm-hull/git-commit-summary/internal/ui.TestHistory/Add_truncates_future_history	✅ passed
com/rm-hull/git-commit-summary/internal/ui.TestHistory/Multiple_Undos_and_Redos	✅ passed
com/rm-hull/git-commit-summary/internal/ui.TestHistory	✅ passed

• View JUnit Test Report

[gemini-code-assist]

Code Review

This pull request is a great refactoring that replaces a boolean flag with a more explicit ui.Action enum. The changes are well-implemented across the codebase, including interfaces, implementations, and tests, which significantly improves code clarity and prepares for future extensions.

I have a few suggestions to further improve the robustness and maintainability of the new enum and its usage. These are minor points that build upon the excellent work already done.

[gemini-code-assist]

Following the suggestion to make Abort the zero value for the Action enum, the explicit initialization of action to Abort becomes redundant. The action field will be implicitly initialized to its zero value.

	return model{
		textarea: ti,
		history:  NewHistory(value),
		err:      nil,
	}

[coveralls]

Pull Request Test Coverage Report for Build 19181025309

Details

• 2 of 14 (14.29%) changed or added relevant lines in 3 files are covered.
• 7 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.6%) to 31.034%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
internal/ui/client.go	0	4	0.0%
internal/ui/text_area.go	0	8	0.0%

Files with Coverage Reduction	New Missed Lines	%
internal/ui/text_area.go	1	0.0%
internal/ui/client.go	6	0.0%

Totals
Change from base Build 19180706630:	-0.6%
Covered Lines:	144
Relevant Lines:	464

---

💛 - Coveralls