package utils

import (
	"fmt"
	"net"
	"pandax/kit/httpclient"
)

const UNKNOWN = "XX XX"

// GetRealAddressByIP 获取真实地址
func GetRealAddressByIP(ip string) string {
	if ip == "127.0.0.1" || ip == "localhost" {
		return "内部IP"
	}
	url := fmt.Sprintf("http://whois.pconline.com.cn/ipJson.jsp?json=true&ip=%s", ip)

	res := httpclient.NewRequest(url).Get()
	if res == nil || res.StatusCode != 200 {
		return UNKNOWN
	}
	dst, _ := ToUTF8("GBK", string(res.Body))
	toMap := Json2Map(dst)
	pro := ""
	city := ""
	if tPro, ok := toMap["pro"].(string); ok {
		pro = tPro
	}
	if tCity, ok := toMap["city"].(string); ok {
		city = tCity
	}
	return fmt.Sprintf("%s %s", pro, city)
}

// 获取局域网ip地址
func GetLocaHonst() string {
	netInterfaces, err := net.Interfaces()
	if err != nil {
		fmt.Println("net.Interfaces failed, err:", err.Error())
	}

	for i := 0; i < len(netInterfaces); i++ {
		if (netInterfaces[i].Flags & net.FlagUp) != 0 {
			addrs, _ := netInterfaces[i].Addrs()

			for _, address := range addrs {
				if ipnet, ok := address.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
					if ipnet.IP.To4() != nil {
						return ipnet.IP.String()
					}
				}
			}
		}

	}
	return ""
}