package cmd

import (
	"fmt"

	"github.com/fatih/color"
	"github.com/spf13/cobra"
	"gmgauthier.com/grokkit/internal/git"
	"gmgauthier.com/grokkit/internal/grok"
)

var prDescribeCmd = &cobra.Command{
	Use:   "pr-describe",
	Short: "Generate full PR description from current branch",
	Run: func(cmd *cobra.Command, args []string) {
		diff := git.Run([]string{"diff", "main..HEAD", "--no-color"})
		if diff == "" {
			diff = git.Run([]string{"diff", "origin/main..HEAD", "--no-color"})
		}
		if diff == "" {
			color.Yellow("No changes on this branch compared to main/origin/main.")
			return
		}
		client := grok.NewClient()
		messages := []map[string]string{
			{"role": "system", "content": "Write a professional GitHub PR title + detailed body (changes, motivation, testing notes)."},
			{"role": "user", "content": fmt.Sprintf("Diff:\n%s", diff)},
		}
		color.Yellow("Writing PR description...")
		client.Stream(messages, "grok-4")
	},
}
