// Package fwh_xlog 设备 Xlog 调试开关（基于 fwh_mqtt 一问一答）
package fwh_xlog

import (
	"context"
	"encoding/json"

	"fwh-toolbox-server/repositories/mqtt/fwh_mqtt"
)

const (
	cmdTypeXlogReq = 2000 // xlog请求
	cmdTypeXlogRes = 2001 // xlog应答
	xlogAddr       = "18.188.130.67:9081"
)

// EnableXlog 使能站点 xlog，只在生产服使用
func EnableXlog(ctx context.Context, sn string) (string, error) {
	client, err := fwh_mqtt.GetClient(fwh_mqtt.EnvProd)
	if err != nil {
		return "", err
	}

	msg, err := fwh_mqtt.NewEnvelope(cmdTypeXlogReq, sn, map[string]string{"xlogaddr": xlogAddr})
	if err != nil {
		return "", err
	}

	res, err := client.Request(ctx, fwh_mqtt.RequestOpt{
		Topic:    fwh_mqtt.S2CTopic("debug/" + sn),
		Msg:      msg,
		ResTopic: fwh_mqtt.C2STopic("debug/" + sn),
		Match:    func(m fwh_mqtt.Message) bool { return m.Envelope.CmdType == cmdTypeXlogRes },
	})
	if err != nil {
		return "", err
	}

	b, err := json.Marshal(res.Envelope.DataArea)
	if err != nil {
		return "", err
	}
	return string(b), nil
}