package test

import (
	"crypto/md5"
	"encoding/hex"
	"encoding/json"
	"io"
	"os"
	"path/filepath"
)

func FileMd5(filePath string) string {
	file, err := os.Open(filePath)
	if err != nil {
		panic(err)
	}
	// Tell the program to call the following function when the current function returns
	defer file.Close()

	// Open a new hash interface to write to
	hash := md5.New()

	// Copy the file in the hash interface and check for any error
	if _, err := io.Copy(hash, file); err != nil {
		return ""
	}
	return hex.EncodeToString(hash.Sum(nil))
}

func DirMd5(dirPath string) string {
	hash := md5.New()
	filepath.Walk(dirPath, func(path string, info os.FileInfo, err error) error {
		if info.IsDir() {
			return nil
		}
		file, err := os.Open(path)
		if err != nil {
			return err
		}
		if _, err := io.Copy(hash, file); err != nil {
			return err
		}
		return nil
	})
	return hex.EncodeToString(hash.Sum(nil))
}

func ToJson(v interface{}) string {
	buf, _ := json.Marshal(v)
	return string(buf)
}

func JsonEqual(v1 any, v2 any) bool {
	return ToJson(v1) == ToJson(v2)
}