package wx

import (
	"context"
	"encoding/json"
	"fmt"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/os/glog"
	"server/utility/ecode"
	"server/utility/wechat"

	"os"
	"server/api/auth/v1"
)

func (c *ControllerV1) WeChatLogin(ctx context.Context, req *v1.WeChatLoginReq) (res *v1.WeChatLoginRes, err error) {
	// 1、根据 uuid 构建redis 存入数据接口
	cache := struct {
		Token  string `json:"token"`
		OpenID string `json:"openid"`
	}{
		Token:  "",
		OpenID: "",
	}

	marshal, err := json.Marshal(cache)
	if err != nil {
		glog.Errorf(ctx, "反序列化数据出现异常")
		return nil, ecode.Fail.Sub("反序列化数据出现异常")
	}

	// 2、存入 redis
	_, err = g.Redis().Do(ctx, "SETEX", fmt.Sprintf("login_status:%s", req.UUID), 300, marshal)
	if err != nil {
		glog.Errorf(ctx, "写入 Redis 异常：%v", err)
		return nil, ecode.Fail.Sub("写入 Redis 登录状态失败")
	}

	// 3、开始获取图片
	weChatClient := wechat.GetWeChatClient()
	ticket, err := weChatClient.GetTicket(req.UUID)
	if err != nil {
		return nil, ecode.Fail.Sub("微信登录获取 ticket 错误")
	}
	imagePath, err := weChatClient.GetQrCode(ticket, req.UUID+".jpg")
	if err != nil {
		return nil, ecode.Fail.Sub("微信登录获取二维码错误")
	}
	imageData, err := os.ReadFile(imagePath)
	if err != nil {
		return nil, ecode.Fail.Sub("读取二维码图片失败")
	}
	defer os.Remove(imagePath)
	resp := g.RequestFromCtx(ctx).Response
	resp.Header().Set("Content-Type", "image/jpeg")
	resp.Write(imageData)

	return nil, nil
}