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 {
	valueOfObj := reflect.ValueOf(obj)
	keysCount := valueOfObj.NumField()

	keys := make([]string, keysCount)
	for i := 0; i < keysCount; i++ {
		keys[i] = valueOfObj.Type().Field(i).Name
	}
	sort.Strings(keys)

	str := ""
	currentKey := ""
	var currentValue reflect.Value
	for j := 0; j < keysCount; j++ {
		currentKey = strings.ToLower(keys[j])
		currentValue = valueOfObj.FieldByName(keys[j])
		str = fmt.Sprintf("%s%s=%v&", str, currentKey, currentValue)
	}

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