package cmd

import (
	"fmt"

	"archgrid.xyz/ag/tools/types"
	"archgrid.xyz/ag/toolsbox/hash/phash"
	"archgrid.xyz/ag/toolsbox/serialize/base64"
	"archgrid.xyz/ag/toolsbox/serialize/hex"
	"github.com/spf13/cobra"
)

var (
	phashResult types.ResultEncoding = types.ResultInHex
)

var phashCmd = &cobra.Command{
	Use:   "phash",
	Short: "使用pHash算法计算指定图像文件的感知哈希值。",
	Long:  `使用pHash算法计算指定图像文件的感知哈希值。`,
	Args:  cobra.MinimumNArgs(1),
	Run:   phashExecute,
}

func phashExecute(cmd *cobra.Command, args []string) {
	var (
		hashResult []byte
		err        error
	)
	hashResult, err = phash.HashFile(args[0])
	if err != nil {
		fmt.Printf("散列计算失败：%s\n", err)
		return
	}
	switch phashResult {
	case types.ResultInBase64:
		fmt.Printf("感知计算结果：%s\n", base64.ToBase64(hashResult))
	case types.ResultInHex:
		fallthrough
	default:
		fmt.Printf("感知计算结果：%s\n", hex.ToHex(hashResult))
	}
}

func init() {
	phashCmd.Flags().VarP(&phashResult, "output", "o", "计算结果编码输出的格式，可选Base64或者Hex编码，默认使用Hex编码。")
	rootCmd.AddCommand(phashCmd)
}