package tencentNlu

import (
	"crypto/hmac"
	"crypto/md5"
	"crypto/sha256"
	"fmt"
	"io"
	"math/rand"
	"time"
)

//用appkey、appSceret和HMAC-SHA256(mac, secremacSHA256SecrettKey)三个字符串拼接，以":"作为分隔符，再做md5生成guid
func ComputerMd5(orginStr string) string {
	data := []byte(orginStr)
	hash := md5.Sum(data)
	md5Str := fmt.Sprintf("%x", hash)
	return md5Str
}

func ComputeHmac256(message string, secret string) string {
	h := hmac.New(sha256.New, []byte(secret))
	io.WriteString(h, message)
	return fmt.Sprintf("%x", h.Sum(nil))
}

func getRandom(count int) int {
	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	return r.Intn(count)
}

// 是否包含
func IsContain(source string, targetList []string) bool {
	for i := 0; i < len(targetList); i++ {
		if source == targetList[i] {
			return true
		}
	}
	return false
}