package main

import (
	"bytes"
	"encoding/binary"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
	"os"
	"os/signal"
	"strconv"
	"strings"
	"syscall"
	"time"

	"reflect"
	"unsafe"

	"dashoo.cn/labsop"
	"dashoo.cn/utils/redis"

	"dashoo.cn/sg_m3_4g_mqtt/service"
	"github.com/eclipse/paho.mqtt.golang"
	"github.com/nsqio/go-nsq"
)

var (
	producer *nsq.Producer

//	respChan chan *nsq.ProducerTransaction
)
var cv service.ChannelValue

//发送返回参数
type ReturnSMS struct {
	Code    int    `json:"code"`
	Message string `json:"message"`
}

type TopicMessage struct {
	Topic   string `json:"topic"`
	Payload string `json:"payload"`
}

// 收到订阅的mqtt消息处理
func mqttMessageHandler(client mqtt.Client, msg mqtt.Message) {

	// fmt.Printf("TOPIC: %s\n", msg.Topic())
	// fmt.Printf("MSG: % X\n", msg.Payload())
	SeedToControl(msg)
	// datapoint, errv1 := service.Writedata(tagmac, boxmac, fmt.Sprintf("% X", command), cv.GpsBaseStation, wdvalue, sd, cv.Dy, cv.T2bxh, cv.Bbdy, 0, cjtimet, cstimet, bbtimet, bbnum, cv.Mxinh, cv.Sxuliehao, isreplace, cv.InfraredBarrier, o2, cv.Wd, co2, 0, cv.Lng, cv.Lat, cachevalue.DeviceState, cv.Wdtype, cv.ElectricalPower, cv.ElectricalSupply, cv.NTCR, cv.ThreeACVA, cv.ThreeACAA, cv.ThreeACVB, cv.ThreeACAB, cv.ThreeACVC, cv.ThreeACAC, cv.ThreeACW, cv.Doorlock)

	// producer.Publish(service.Config.Send.Controller.Topic, msg.Payload())
}

func SeedToControl(msg mqtt.Message) {
	var tms TopicMessage
	fmt.Printf("TOPIC: %s\n", msg.Topic())
	fmt.Printf("MSG: % X\n", msg.Payload())
	code := strings.Split(msg.Topic(), "/")
	tms.Topic = code[2]
	fmt.Println("传感器：", code[1])
	if code[1] == "o2" && len(msg.Payload()) == 7 {
		ac := msg.Payload()
		O2 := Co2ppmint(ac[3:5])
		cv.O2 = O2 / 100
		cv.SimSignal = 24
		fmt.Println("cv.氧气浓度：", cv.O2)
		cv.Time = time.Now()
		WriteRedisAndIfluxdb(tms.Topic, cv, msg.Payload())
	}
	if code[1] == "co2" && len(msg.Payload()) == 7 {
		ac := msg.Payload()
		CO2 := Co2ppmint(ac[3:5])
		cv.Co2 = CO2 / 10000
		cv.SimSignal = 24
		fmt.Println("cv.二氧化碳浓度：", cv.Co2)
		cv.Time = time.Now()
		WriteRedisAndIfluxdb(tms.Topic, cv, msg.Payload())
	}
	return
}

//二氧化碳 氧气
func Co2ppmint(command []byte) float64 {
	if len(command) == 2 {
		var x int16
		b_buf := bytes.NewBuffer(command)
		binary.Read(b_buf, binary.BigEndian, &x)
		c := float64(x) * 10
		c_str := strconv.FormatFloat(c, 'f', 2, 64)
		c_f64, _ := strconv.ParseFloat(c_str, 64)
		return c_f64
	}
	return 0
}

//网络信号 CSQ
func CSQ(command []byte) float64 {
	return float64(command[0])
}

func BytesToString(b []byte) string {
	bh := (*reflect.SliceHeader)(unsafe.Pointer(&b))
	sh := reflect.StringHeader{bh.Data, bh.Len}
	return *(*string)(unsafe.Pointer(&sh))
}

//写入数据库 redis
func WriteRedisAndIfluxdb(tagmac string, cv service.ChannelValue, value []byte) {
	cachevalue, _ := labsop.GetBoxLastdata(tagmac)
	datapoint, errv1 := service.Writedata(tagmac, cv.BBMac, fmt.Sprintf("% X", value), cv.GpsBaseStation, cv.Temperature, cv.Humidity, cv.Voltage, cv.T2bxh, cv.BBVoltage, 0, cv.Time, cv.BBCSTime, cv.BBCSTime, cv.BBNo, cv.SimSignal, cv.SensorNo, 0, cv.InfraredBarrier, cv.O2, cv.Temperature, cv.Co2, 0, cv.Lng, cv.Lat, 0, 1, cv.ElectricalPower, cv.ElectricalSupply, cv.NTCR, cv.ThreeACVA, cv.ThreeACAA, cv.ThreeACVB, cv.ThreeACAB, cv.ThreeACVC, cv.ThreeACAC, cv.ThreeACW, cv.Doorlock)

	cjutc := cv.Time.Unix()
	if errv1 == nil && cjutc >= cachevalue.Time.Unix() {
		//写入成功后才写入缓存
		fmt.Println("----写入----", tagmac)
		labsop.UpdateBoxLastdata(tagmac, datapoint)
	}
}

func ApiPost(strUrl, method string, postDict interface{}) (listPtr ReturnSMS) {

	httpClient := &http.Client{
		//Transport:nil,
		//CheckRedirect: nil,
		Timeout: 6 * time.Second,
	}

	var httpReq *http.Request

	b, _ := json.Marshal(postDict)
	postBytesReader := bytes.NewReader(b)
	httpReq, _ = http.NewRequest(method, strUrl, postBytesReader)
	httpReq.Header.Add("Content-Type", "application/json")
	response, _ := httpClient.Do(httpReq)
	if response != nil {
		body, _ := ioutil.ReadAll(response.Body)
		json.Unmarshal(body, &listPtr)
	}
	return
}

func main() {
	service.Config = service.ReadAppConfig("conf/app.conf")
	//初始化缓存区
	redis.InitRedis(service.Config.Send.Redis.Poolnum, service.Config.Send.Redis.Addr)
	// Set up channel on which to send signal notifications.
	termChan := make(chan os.Signal, 1)
	signal.Notify(termChan, os.Interrupt, os.Kill, syscall.SIGINT, syscall.SIGTERM)

	nsqCfg := nsq.NewConfig()
	var err error
	service.Producernsq, err = nsq.NewProducer(service.Config.Send.Controller.Nsqdtcpaddr, nsqCfg)
	if err != nil {
		log.Fatalf("failed creating producer %s", err)
	}
	opts := mqtt.NewClientOptions()
	opts.AddBroker(service.Config.Receive.Mqtt.Serveraddr)
	opts.SetClientID(service.Config.Receive.Mqtt.Clientid)
	opts.SetUsername(service.Config.Receive.Mqtt.Username)
	opts.SetPassword(service.Config.Receive.Mqtt.Password)
	opts.SetDefaultPublishHandler(mqttMessageHandler)
	opts.SetKeepAlive(60 * time.Second)
	opts.SetCleanSession(false)
	opts.SetPingTimeout(1 * time.Second)

	mqttClient := mqtt.NewClient(opts)
	if token := mqttClient.Connect(); token.Wait() && token.Error() != nil {
		log.Fatal(token.Error())
	}

	if token := mqttClient.Subscribe(service.Config.Receive.Mqtt.Topic, 1, nil); token.Wait() && token.Error() != nil {
		log.Fatal(token.Error())
	}
	fmt.Println("服务开启")

	time.Sleep(6 * time.Second)

	// Wait for receiving a signal.
	<-termChan
	mqttClient.Disconnect(250)

}