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

package main

import (
	"dust-monitor/handler/v1"
	"dust-monitor/parser"
	"dust-monitor/pb"
	"dust-monitor/tcp_packet"
	"dust-monitor/timetask"
	"flag"
	"fmt"
	"net"
	"net/http"
	"os"
	"log"
	"github.com/gin-gonic/gin"
	swaggerFiles "github.com/swaggo/files"
	ginSwagger "github.com/swaggo/gin-swagger"
	"dust-monitor/route"
)

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)
}

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.MysqlHandler, parser.InfluxdbHandler)
	// 执行注册的处理函数
	parser.Handle()

	v1.InitAreaCodeMap()
	// 建立rpc客户端
	conns := pb.SetupClients()
	for _, conn := range conns {
		defer conn.Close()
	}
	timetask.Init()

}

func runDeviceTcp(ip string, port int) {
	service := fmt.Sprintf("%s:%d", ip, port)
	tcpAddr, err := net.ResolveTCPAddr("tcp4", service)
	if err != nil {
		fmt.Println("resolve tcp addr err:", err)
		os.Exit(1)
	}
	listener, err := net.ListenTCP("tcp", tcpAddr)
	if err != nil {
		fmt.Println("listen tcp err:", err)
		os.Exit(2)
	}
	for {
		fmt.Printf("listen:%v\n", listener.Addr().String())
		conn, err := listener.Accept()
		if err != nil {
			continue
		}
		go tcp_packet.HandleSocketClient(conn)
	}
}




func runHttp() {
	// 新建engine
	engine := gin.New()
	handlers := gin.HandlersChain{}

	// 根据env_mode设置gin的运行模式
	switch parser.Conf.RunMode {
	case "test":
		gin.SetMode(gin.TestMode)
	case "prod":
		gin.SetMode(gin.ReleaseMode)
	case "dev":
		fallthrough
	default:
		gin.SetMode(gin.DebugMode)
		// 根据配置是否生成swagger
		engine.GET("/swagger/*any", ginSwagger.WrapHandler(swaggerFiles.Handler))
		// 输出打印日志
		handlers = append(handlers, gin.Logger())
	}

	// 处理panic
	handlers = append(handlers, gin.Recovery())
	engine.Use(handlers...)

	// 设定路由
	route.SetupRoute(engine)

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

	// 创建监听服务
	server := &http.Server{
		Addr: fmt.Sprintf("%s:%d", parser.Conf.DustMonitor.GatewayIp,
			parser.Conf.DustMonitor.GatewayPort),
		Handler: engine,
	}

	// 开始监听
	log.Printf("Listening and serving HTTP on %s\n", server.Addr)
	go func() {
		if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
			log.Fatalf("HTTP server listen failed. err: %s\n", err.Error())
		}
	}()
}
func main() {

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

	prepare(*configFile)

	runHttp()
	runDeviceTcp(parser.Conf.DustMonitor.ServiceIp, parser.Conf.DustMonitor.ServicePort)
	return
}