package utils

import (
	"github.com/gogf/gf/v2/encoding/gcharset"
	"github.com/gogf/gf/v2/encoding/gjson"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/os/gctx"
	"github.com/mssola/user_agent"
)

// GetClientBrowserInfo 获取浏览器信息
func GetClientBrowserInfo(clientIP, userAgent string) (string, string, string) {
	ua := user_agent.New(userAgent)
	browser, _ := ua.Browser()
	return ua.OS(), browser, GetClientCityByIp(clientIP)
}

// GetClientCityByIp 获取ip所属城市
func GetClientCityByIp(ip string) string {
	if ip == "" {
		return ""
	}
	if ip == "[::1]" || ip == "127.0.0.1" {
		return "内网IP"
	}
	url := "http://whois.pconline.com.cn/ipJson.jsp?json=true&ip=" + ip
	bytes := g.Client().GetBytes(gctx.New(), url)
	src := string(bytes)
	srcCharset := "GBK"
	tmp, _ := gcharset.ToUTF8(srcCharset, src)
	resData, err := gjson.DecodeToJson(tmp)
	if err != nil {
		return ""
	}
	if resData.Get("code").Int() == 0 {
		pro := resData.Get("pro").String()
		city := resData.Get("city").String()
		return pro + city
	} else {
		return ""
	}
}