package oauth2

import (
	"encoding/json"
	"fmt"
	"gitee.com/h79/gothird/token"
	"gitee.com/h79/gothird/weixin/consts"
	"gitee.com/h79/gothird/weixin/response"
	"gitee.com/h79/goutils/common/http"
)

/**
 * 网站应用
 *
 *第一步：请求CODE
 * 第三方使用网站应用授权登录前请注意已获取相应网页授权作用域（scope=snsapi_login），则可以通过在PC端打开以下链接：
 *   https://open.weixin.qq.com/connect/qrconnect?appid=APPID&redirect_uri=REDIRECT_URI&response_type=code&scope=SCOPE&state=STATE#wechat_redirect
 *
 *   https://developers.weixin.qq.com/doc/oplatform/Website_App/WeChat_Login/Authorized_Interface_Calling_UnionID.html
 */

// GetUser GET https://api.weixin.qq.com/sns/userinfo?access_token=%s&openid=%s
// 通过access_token和openid获取用户的基础信息，包括头像、昵称、性别、地区
func GetUser(api *token.Api, openid string) (*User, error) {
	if openid == "" {
		return nil, token.Error(-1, "openid is empty")
	}
	uri := fmt.Sprintf("%s/sns/userinfo?openid=%s&", consts.ApiPrefixUrl, openid)
	type userResult struct {
		response.Response
		User
	}
	res := userResult{}
	if er := api.Request("GET", uri, nil, func(hp *http.Http, body []byte) error {
		if err := json.Unmarshal(body, &res); err != nil {
			return err
		}
		return res.ReturnIf(api)
	}); er != nil {
		return nil, er
	}
	res.AppId = api.AppId()
	return &res.User, nil
}