package commands

import (
	"fmt"

	"github.com/spf13/cobra"
)

func newDiffCmd() *cobra.Command {
	var (
		current    bool
		with       string
		collectors string
		output     string
	)

	cmd := &cobra.Command{
		Use:   "diff <pack-name>",
		Short: "对比环境差异",
		Long:  `对比两个环境之间的差异。`,
		Args:  cobra.ExactArgs(1),
		RunE: func(cmd *cobra.Command, args []string) error {
			packName := args[0]

			if current {
				fmt.Printf("🔍 Comparing \"%s\" with current environment...\n\n", packName)
			} else if with != "" {
				fmt.Printf("🔍 Comparing \"%s\" with \"%s\"...\n\n", packName, with)
			} else {
				return fmt.Errorf("请指定对比目标: --current 或 --with <pack-name>")
			}

			// TODO: 实现差异对比逻辑
			fmt.Println("（差异对比功能尚未实现）")
			return nil
		},
	}

	cmd.Flags().BoolVar(&current, "current", false, "与当前环境对比")
	cmd.Flags().StringVar(&with, "with", "", "与另一个 Pack 对比")
	cmd.Flags().StringVarP(&collectors, "collectors", "c", "", "只对比指定采集器")
	cmd.Flags().StringVarP(&output, "output", "o", "table", "输出格式 (table|json|yaml)")

	return cmd
}