package app

import (
	"net/http"

	"github.com/gin-gonic/gin"
	"github.com/prometheus/common/log"
	"github.com/silenceper/wechat"
	"github.com/silenceper/wechat/cache"
	"github.com/silenceper/wechat/miniprogram"
	"yyjishu.com/rubbish-class/user"
)

var (
	wxa *miniprogram.MiniProgram
)

func init() {
	mem := cache.NewMemory()
	appConfig := &wechat.Config{
		AppID:     "wx49cced01eec31847",
		AppSecret: "0090134e4a137554a271133d7f73e633",
		Cache:     mem,
	}
	wx := wechat.NewWechat(appConfig)
	wxa = wx.GetMiniProgram()
}

//Code2SessionHandler 登录凭证校验,通过 wx.login 接口获得临时登录凭证 code 后传到开发者服务器调用此接口完成登录流程。
//GET https://api.weixin.qq.com/sns/jscode2session?appid=APPID&secret=SECRET&js_code=JSCODE&grant_type=authorization_code
func Code2SessionHandler(c *gin.Context) {
	jscode := c.Param("jscode")
	result, err := wxa.Code2Session(jscode)
	if err != nil {
		log.Warn(err)
		c.AbortWithStatusJSON(http.StatusBadRequest, err.Error())
		return
	}
	if result.ErrCode != 0 {
		c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{
			"err": result.ErrMsg,
		})
		return
	}
	u := &user.UserSession{
		//ID:         uuid.Must(uuid.NewV4(), nil).String(),
		OpenID:     result.OpenID,
		SessionKey: result.SessionKey,
		UnionID:    result.UnionID,
	}
	us := user.NewService()
	us.SaveSession(u)
	c.JSON(http.StatusOK, gin.H{
		"token":    result.OpenID,
		"expireat": 7200,
	})
}