// Copyright 2019 github.com. All rights reserved.
// Use of this source code is governed by github.com.

package main

import (
	"github.com/jaryhe/gopkgs/mqtt"
	"tower-monitor/parser"
	"tower-monitor/pb"
	"tower-monitor/udp_packet"
	"tower-monitor/timetask"
	"flag"
	"fmt"
	"net"
	"os"
	gmqtt "github.com/eclipse/paho.mqtt.golang"
)

var (
	configFile = flag.String("config", "conf/common.yaml", "config file location")
	version    = flag.Bool("version", false, "print the version")
	GitCommit  = "library-import"
	Version    = "library-import"
)

func showVersion() {
	fmt.Println("Version:  ", Version)
	fmt.Println("GitCommit:", GitCommit)
}

var LimitChan = make(chan bool, 100)
var HeartLimitChan = make(chan bool, 100)

func prepare(filename string) {
	// 加载配置
	err := parser.LoadConfig(filename)
	if err != nil {
		fmt.Printf("get conf failed, err: %+v\n\n", err)
		os.Exit(1)
	}

	// 注册处理函数
	// parser.Register(parser.MysqlHandler, parser.RedisHandler, parser.LoggerHandler)
	//parser.Register(parser.LoggerHandler, parser.MysqlHandler, parser.RedisHandler)
	parser.Register(parser.LoggerHandler, parser.InfluxdbHandler, parser.MqttHandler)
	// 执行注册的处理函数
	parser.Handle()

	// 建立rpc客户端
	conns := pb.SetupClients()
	for _, conn := range conns {
		defer conn.Close()
	}
	timetask.Init()

}

func runDeviceUdp(ip string, port int, ch chan bool) {
	service := fmt.Sprintf("%s:%d", ip, port)
	udpAddr, err := net.ResolveUDPAddr("udp", service)
	if err != nil {
		fmt.Println("resolve udp addr err:", err)
		os.Exit(1)
	}
	listener, err := net.ListenUDP("udp", udpAddr)
	if err != nil {
		fmt.Println("listen tcp err:", err)
		os.Exit(2)
	}
	defer listener.Close()
	fmt.Printf("listen:%v\n", listener.LocalAddr().String())
	for {
		ch <-true
		go udp_packet.HandleSocketClient(listener, ch)
	}
}

func subCallbackFunc(client gmqtt.Client, msg gmqtt.Message) {
	fmt.Printf("Subscribe: Topic is [%s]; msg is [%v]\n", msg.Topic(), msg.Payload())
	if msg.Topic() != parser.Conf.Mqtt.Topic {
		return
	}
	go udp_packet.MqttHandle(msg.Payload())
}

func mqttSubscribe() error {
	fmt.Printf("xxxtopic:%s,%v\n", parser.Conf.Mqtt.Topic, mqtt.MqttCli)
	return mqtt.Subscribe(mqtt.MqttCli, parser.Conf.Mqtt.Topic, subCallbackFunc)
}



func main() {
	flag.Parse()
	if *version {
		showVersion()
		os.Exit(1)
	}

	prepare(*configFile)
	mqttSubscribe()
	go runDeviceUdp(parser.Conf.TowerMonitor.ServiceIp, parser.Conf.TowerMonitor.ServicePort, LimitChan)
	runDeviceUdp(parser.Conf.TowerMonitor.ServiceIp, parser.Conf.TowerMonitor.HeartPort, HeartLimitChan)

	return
}