package service

import (
	"encoding/json"
	"errors"
	"io"
	"net/http"
	"strconv"
	"yuleduiPay/repo"
	"yuleduiPay/service/vo"

	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/net/ghttp"
)

type Wx struct {
	payOrderRepo repo.PayOrder
	shopRepo     repo.Shop
}

// 微信用户登录
func (t *Wx) Login(r *ghttp.Request) {
	req := vo.WxLoginReq{}
	err := r.Parse(&req)
	if err != nil {
		r.SetError(err)
		return
	}
	sessionResp, err := t.wxAuthorize(req.JsCode)
	if err != nil {
		r.SetError(err)
		return
	}
	_ = sessionResp
	//通过openId查询手机号
}

// 微信授权获取openId
func (t *Wx) wxAuthorize(jsCode string) (*vo.WxSessionResp, error) {
	var urlResp *http.Response
	var err error
	appid := g.Cfg().MustGet(nil, "weixin.appId").String()
	wxSecret := g.Cfg().MustGet(nil, "weixin.secret").String()
	wx_url := "https://api.weixin.qq.com/sns/jscode2session?appid=" + appid +
		"&secret=" + wxSecret + "&js_code=" + jsCode + "&grant_type=authorization_code"

	for i := 0; i < 2; i++ { // 失败一次，再次调用
		urlResp, err = http.Get(wx_url)
		if err == nil { // 成功的话，跳出
			break
		}
	}
	if err != nil {
		return nil, err
	}
	body, err := io.ReadAll(urlResp.Body)
	if err != nil {
		return nil, err
	}
	urlResp.Body.Close()
	sessionResp := vo.WxSessionResp{} // 用户标志信息
	err = json.Unmarshal(body, &sessionResp)
	if err != nil {
		return nil, err
	}
	if sessionResp.ErrCode != 0 {
		err = errors.New("errCode:" + strconv.Itoa(sessionResp.ErrCode) + "  errMsg:" + sessionResp.ErrMsg)
		return nil, err
	}
	//根据openId查询手机号
	return &sessionResp, err
}