package weixin

import (
	"bytes"
	"encoding/json"
	"fmt"
	"github.com/tidwall/gjson"
	"io"
	"net/http"
)

type OaSdk struct {
	BaseSdk
}

func NewOaSdk(appid, secret string) *OaSdk {
	return &OaSdk{
		BaseSdk{
			appid:  appid,
			secret: secret,
		},
	}
}

func (o *OaSdk) GetQrCode(sceneStr string) (string, error) {
	params := make(map[string]interface{})
	params["expire_seconds"] = 1728000 //20天
	params["action_name"] = "QR_STR_SCENE"
	params["action_info"] = map[string]interface{}{
		"scene": map[string]interface{}{
			"scene_str": sceneStr, // sceneStr不超过64个字符
		},
	}

	marshal, _ := json.Marshal(params)
	accessToken, err := o.getAccessToken()
	if err != nil {
		return "", err
	}

	url := fmt.Sprintf("?access_token=%s", oaQrCodeCreateUrl, accessToken)
	res, err := http.Post(url, "application/json", bytes.NewBuffer(marshal))
	if err != nil {
		return "", err
	}
	defer res.Body.Close()
	body, err := io.ReadAll(res.Body)
	if err != nil {
		return "", err
	}
	g := gjson.ParseBytes(body)

	qrcodeUrl := g.Get("url").String()
	if qrcodeUrl == "" {
		return "", fmt.Errorf("%d:%s", g.Get("errcode").Int(), g.Get("errmsg").String())
	}
	return qrcodeUrl, nil
}

func (o *BaseSdk) GetUserInfoByCode(code string) (*UserInfo, error) {
	return o.getUserInfoByCode(code)
}

func (o *OaSdk) GetUserInfoByOpenid(openid string) (*UserInfo, error) {
	accessToken, err := o.getAccessToken()
	if err != nil {
		return nil, err
	}
	url := fmt.Sprintf("%s?access_token=%s&openid=%s&lang=zh_CN",
		userInfoByOpenid, accessToken, openid)
	res, err := http.Get(url)
	if err != nil {
		return nil, err
	}
	defer res.Body.Close()
	body, err := io.ReadAll(res.Body)
	if err != nil {
		return nil, err
	}
	g := gjson.ParseBytes(body)
	errcode := g.Get("errcode").Int()
	if errcode != 0 {
		return nil, fmt.Errorf("%d:%s", errcode, g.Get("errmsg").String())
	}
	user := new(UserInfo)
	user.Unionid = g.Get("unionid").String()
	user.Nickname = g.Get("nickname").String()
	user.Province = g.Get("province").String()
	user.City = g.Get("city").String()
	user.Country = g.Get("country").String()
	user.HeadUrl = g.Get("headimgurl").String()
	user.Sex = int(g.Get("sex").Int())
	user.Openid = openid
	return user, nil
}