package utils

import (
	"encoding/json"
	"errors"
	"fmt"
	"git.qianqiusoft.com/qianqiusoft/light-apiengine/config"
	"io/ioutil"
	"net/http"
)

var _gidUrl = ""
var _gidTagPrefix = "s"

//{"code":200,"data":1}
type Res struct {
	Code int   `json:"code"`
	Data int64 `json:"data"`
}

func GetGid(tag string) (id int64, err error) {
	if _gidUrl == "" {
		_gidUrl = config.AppConfig.GetKey("gid_url")
		_gidTagPrefix = config.AppConfig.GetKey("gid_tag_prefix")
	}

	req, err := http.NewRequest("GET", _gidUrl+_gidTagPrefix+tag, nil)
	if err != nil {
		return
	}
	res, err := http.DefaultClient.Do(req)
	if err != nil {
		return
	}
	if res == nil {
		err = errors.New("res is nil")
		return
	}
	defer func() {
		_ = res.Body.Close()
	}()
	body, err := ioutil.ReadAll(res.Body)
	var ret Res
	err = json.Unmarshal(body, &ret)
	if err != nil {
		return
	}
	if ret.Code != 200 {
		err = fmt.Errorf("gid code(%d) error", ret.Code)
		return
	}
	id = ret.Data
	return
}