package utils

import (
	"crypto/md5"
	"fmt"
	"reflect"
	"sort"
	"strings"
)

// GetAddress
// 获取监听地址
//
//	@return []string
func GetListenAddress() []string {
	address := Conf.Get("init", "addr")
	addressArr := strings.Split(address, "://")
	if addressArr[0] == "https" {
		return []string{addressArr[0], addressArr[1]}
	}
	var addr string
	if len(addressArr) > 1 {
		addr = addressArr[1]
	} else {
		addr = addressArr[0]
	}
	return []string{"http", addr}
}

// GetProxy
// 获取代理服务器
//
//	@return string
func GetProxyServer() string {
	proxy := Conf.Get("proxy", "addr")
	if proxy == "" {
		return ""
	}
	proxyArr := strings.Split(proxy, "://")
	if proxyArr[0] != "http" && proxyArr[0] != "https" {
		return "http://" + proxyArr[0]
	}

	return proxy
}

// Md5
//
//	@param text
//	@return string
func Md5(text string) string {
	hash := md5.New()
	hash.Write([]byte(text))
	byteData := hash.Sum(nil)
	return fmt.Sprintf("%x", byteData)
}

// MakeSign
// 生成签名
//
//	@param obj
//	@param privateKey
//	@return string
func MakeSign(obj interface{}, privateKey string) string {
	signmap := map[string]interface{}{}
	valueOfObj := reflect.ValueOf(obj)
	for i := 0; i < valueOfObj.NumField(); i++ {
		signmap[valueOfObj.Type().Field(i).Name] = valueOfObj.Field(i)
	}

	//进行键排序
	keys := make([]string, len(signmap))
	j := 0
	for k := range signmap {
		keys[j] = k
		j++
	}

	sort.Strings(keys)
	//获取 value 值，拼接成一行
	str := ""
	for _, k := range keys {
		if strings.ToLower(k) == "sign" {
			continue
		}
		if v, ok := signmap[k]; ok {
			str = fmt.Sprintf("%s%s=%v&", str, strings.ToLower(k), v)
		}
	}

	return Md5(str + "key=" + privateKey)
}