package device

import (
	"encoding/json"
	"fmt"
	mqtt "github.com/eclipse/paho.mqtt.golang"
	log "github.com/sirupsen/logrus"
	"github.com/spf13/cast"
	"strings"
	"sync"
	"time"
)

var (
	FSTypeGetinfo = "getinfo"
)

type FsVoice struct {
	sync.Mutex
	deviceId string
	client   mqtt.Client
	callback Callback
	brand    string
	model    string
}

func NewFushuaVoice(deviceId string, client mqtt.Client, callback Callback) *FsVoice {
	s := &FsVoice{
		deviceId: deviceId,
		client:   client,
		callback: callback,
		brand:    BrandFushua,
		model:    "voice",
	}

	if callback != nil {
		client.Subscribe(fmt.Sprintf("%s/%s/%s", s.brand, s.model, deviceId), 2, s.Callback)
	}
	return s
}

func (s *FsVoice) Operate(cmd string) error {
	return s.Play(cmd)
}

func (s *FsVoice) KeepAlive() error {
	if s.deviceId == "#" {
		return nil
	}
	topic := fmt.Sprintf("%s/%s/%s/cmd", s.brand, s.model, s.deviceId)
	payload := fmt.Sprintf(`{"cmd":"getinfo","msgid":"%s"}`, cast.ToString(time.Now().UnixMilli()))
	publishACK := s.client.Publish(topic, 2, false, payload)
	publishACK.WaitTimeout(time.Second)
	return publishACK.Error()
}

func (s *FsVoice) Play(tts string) error {
	if s.deviceId == "#" {
		return nil
	}
	topic := fmt.Sprintf("%s/%s/%s/cmd", s.brand, s.model, s.deviceId)
	payload := fmt.Sprintf(`{"cmd":"voice","msgid":"%s","msg":"%s"}`, cast.ToString(time.Now().UnixMilli()), tts)
	publishACK := s.client.Publish(topic, 2, false, payload)
	publishACK.WaitTimeout(time.Second)
	return publishACK.Error()
}

func (s *FsVoice) getDeviceId(topic string) string {
	devId := s.deviceId
	if devId == "#" {
		fields := strings.Split(topic, "/")
		if len(fields) >= 3 {
			devId = fields[2]
		}
	}

	return devId
}

func (s *FsVoice) Callback(client mqtt.Client, message mqtt.Message) {
	s.Lock()
	defer s.Unlock()

	topic := message.Topic()
	payload := message.Payload()
	if strings.HasSuffix(topic, "cmd") {
		return
	}

	log.Debugf("[%s][%s] deviceId[%s] topic[%s] payloyad[%s]", s.brand, s.model, s.deviceId, topic, string(payload))

	var callMsg Message
	callMsg.MsgType = FSTypeGetinfo
	callMsg.MsgTime = time.Now().Unix()
	callMsg.MsgId = cast.ToString(message.MessageID())
	callMsg.DeviceId = s.getDeviceId(topic)
	callMsg.Topic = topic

	callMsg.Data = make(map[string]interface{})
	json.Unmarshal([]byte(payload), &callMsg.Data)
	s.callback(&callMsg)
}