package utils

import (
	"crypto/sha1"
	"fmt"
	"log"
	"os"
	"time"
)

func GetSHA1(rawStr string) (result string) {
	//s := "sha2 this string"

	/*
	   生成一个hash的模式是sha1.New()
	                      sha1.Write(bytes)
	                      sha1.Sum()
	*/

	h := sha1.New()
	h.Write([]byte(rawStr))
	bs := h.Sum(nil)
	fmt.Printf("%x \n", bs)
	result = fmt.Sprintf("%X", bs)
	return
}

func GetSHA1FromFile(fileName string) (result string) {

	content, err := os.ReadFile(fileName)
	log.Printf("err=%v", err)
	h := sha1.New()
	h.Write(content)
	bs := h.Sum(nil)
	result = fmt.Sprintf("%X", bs)
	log.Printf("SHA1_file=%s", result)
	return
}

// GetRnd 获取当前时间戳  到秒
func GetRnd() (rnd string) {
	t := time.Now().Unix()
	log.Printf("%d", t)
	return
}

func GetSign(postStr, rnd, AppKey, AppSecret string) (sign string) {
	return GetSHA1(postStr + rnd + AppKey + AppSecret)
}