package cmd

import (
	"fmt"
	"os"
	"os/exec"

	"github.com/spf13/cobra"
)

var editCmd = &cobra.Command{
	Use:   "edit",
	Short: "Open the units config in $EDITOR",
	RunE:  runEdit,
}

func init() {
	rootCmd.AddCommand(editCmd)
}

func runEdit(cmd *cobra.Command, args []string) error {
	editor := os.Getenv("EDITOR")
	if editor == "" {
		for _, e := range []string{"nvim", "nano", "vi"} {
			if _, err := exec.LookPath(e); err == nil {
				editor = e
				break
			}
		}
	}
	if editor == "" {
		return fmt.Errorf("no editor found; set $EDITOR")
	}
	c := exec.Command(editor, configPath)
	c.Stdin = os.Stdin
	c.Stdout = os.Stdout
	c.Stderr = os.Stderr
	if err := c.Run(); err != nil {
		return fmt.Errorf("editor exited with error: %w", err)
	}
	return nil
}