Feature Request: Implement edit and regenerate function for commit message

[artback]

Description

Extend the TUI for the commit command to handle additional key bindings:

• e (Edit): Opens the system editor with the current commit message, allowing the user to modify and save it.
• r (Regenerate): Reruns the AI prompt to regenerate the commit message.

Expected Behavior

• Pressing e should open the default editor (based on $EDITOR or $VISUAL environment variables).
• After editing and saving, the updated message should be reflected in the TUI.
• Pressing r should trigger the same logic used during initial AI generation.

Context

Currently, only commit confirmation and cancelation is supported in the TUI.
Adding these key bindings improves usability by allowing message tweaks or regeneration without exiting the interface.

[artback]

Code hints

gitai/internal/tui/suggest/ai_message.go

Lines 117 to 120 in 69a4fc8

	case "e":
	// TODO: Open editor to edit the commit message
	case "r":
	// TODO: Regenerate the commit message

gitai/internal/tui/suggest/ai_message.go

Lines 266 to 270 in cd0c0d0

	// TODO: Implement edit and regenerate functionality
	// For now, we just show commit and cancel options
	// b.WriteString("\n[e] Edit [r] Regenerate [c] Commit [x] Cancel\n")
	b.WriteString("\n[c] Commit [x] Cancel\n")
	return b.String()

[artback]

I believe this is a good first ticket for someone @huseynovvusal

[huseynovvusal]

I believe this is a good first ticket for someone @huseynovvusal

Absolutely! I couldn't catch what you mean exactly by opening editor to edit cm but I think it would be better to do everything inside TUI, such as showing text input in a TUI-friendly style. Additionally, there we can also add a feature that user enters a simple description for commit message and AI generates a commit message by considering history, diff, and simple description given by user. What do you think?

[artback]

I was thinking how git command does it normally, it opens the editor, vim or whatever is system ($EDITOR) with the message and lets the user edit it

[huseynovvusal]

I was thinking how git command does it normally, it opens the editor, vim or whatever is system ($EDITOR) with the message and lets the user edit it

Vim sounds feasible actually. Great point!

[artback]

There should be something like that yeah, many projects enforce the jira ticket number as scope so being able to set a custom scope and not an autogenerated would be great. I think I would prefer to do that via an cli option but we can support both via tui or cli and later in config file

[artback]

THe git command when you click commit opens the file .git/COMMIT_EDITMSG something like this and that will open your system editor and let you edit the current message
$EDITOR .git/COMMIT_EDITMSG

I don't know if that's an option to do from within gitai.

[huseynovvusal]

@artback in Gitai, we can also go with this strategy. But, what I offered was simpler, just to render a textbox (TUI-friendly) where a user can simply edit the commit message without moving outside, such as Vim, Nano, etc.