package tik_tok

import (
	"bytes"
	zhios_third_party_utils "code.fnuoos.com/go_rely_warehouse/zyos_go_third_party_api.git/utils"
	"crypto/hmac"
	"crypto/sha256"
	"encoding/hex"
	"encoding/json"
	"github.com/syyongx/php2go"
	"sort"
	"strings"
	"time"
)

func Send(appkey, appSecret, method string, params map[string]interface{}, acctoken string) (string, error) {
	methodPath := strings.ReplaceAll(method, ".", "/")
	url := "https://openapi-fxg.jinritemai.com/" + methodPath
	paramJson := GetSortJson(params)
	paramJson = strings.ReplaceAll(paramJson, "\n", "")
	param := map[string]string{
		"app_key":    appkey,
		"method":     method,
		"param_json": paramJson,
		"timestamp":  zhios_third_party_utils.Int64ToStr(time.Now().Unix()),
		"v":          "2",
	}
	sign := GetSign(appSecret, param)
	if acctoken != "" {
		param["access_token"] = acctoken
	}
	param["sign"] = sign
	param["sign_method"] = "hmac-sha256"
	for k, v := range param {
		if strings.Contains(url, "?") {
			url += "&" + k + "=" + php2go.URLEncode(v)
		} else {
			url += "?" + k + "=" + php2go.URLEncode(v)
		}
	}
	data, err := zhios_third_party_utils.CurlPost(url, paramJson, nil)
	return string(data), err
}
func GetSign(appSecret string, param map[string]string) string {
	str := ""
	keys := KsortToStr(param)
	for _, k := range keys {
		str += k + param[k]
	}
	signStr := appSecret + str + appSecret
	h := hmac.New(sha256.New, []byte(appSecret))
	_, _ = h.Write([]byte(signStr))
	return hex.EncodeToString(h.Sum(nil))
}
func Ksort(params map[string]interface{}) []string {
	keys := make([]string, len(params))
	i := 0
	for k, _ := range params {
		keys[i] = k
		i++
	}
	sort.Strings(keys)
	return keys
}
func KsortToStr(params map[string]string) []string {
	keys := make([]string, len(params))
	i := 0
	for k, _ := range params {
		keys[i] = k
		i++
	}
	sort.Strings(keys)
	return keys
}

//func GetSortJson(params map[string]interface{}) string {
//	// 排序
//	keys := Ksort(params)
//	for _, k := range keys {
//		fmt.Println(k)
//	}
//
//	byteBuf := bytes.NewBuffer([]byte{})
//	encoder := json.NewEncoder(byteBuf)
//	// 特殊字符不转义
//	encoder.SetEscapeHTML(false)
//	err := encoder.Encode(params)
//	if err != nil {
//		panic(err)
//	}
//	data := byteBuf.String()
//	return data
//}

// Marshal 序列化参数
func GetSortJson(o interface{}) string {
	// 序列化一次
	raw, _ := json.Marshal(o)

	// 反序列化为map
	m := make(map[string]interface{})
	reader := bytes.NewReader(raw)
	decode := json.NewDecoder(reader)
	decode.UseNumber()
	_ = decode.Decode(&m)

	// 重新做一次序列化，并禁用Html Escape
	buffer := bytes.NewBufferString("")
	encoder := json.NewEncoder(buffer)
	encoder.SetEscapeHTML(false)
	_ = encoder.Encode(m)

	marshal := strings.TrimSpace(buffer.String()) // Trim掉末尾的换行符
	return marshal
}