package task

import (
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/os/glog"
	"golang.org/x/net/context"
	"net"
	"nodeMonitor/internal/model"
	"nodeMonitor/internal/service"
	"nodeMonitor/library/nettools"
	"sync"
	"time"
)

func Ping(ctx context.Context) {
	glog.Debug(ctx, "start ping .....")
	var wg sync.WaitGroup
	//获取节点数据
	nodeList, err := service.Node().GetNode(ctx)
	if err != nil {
		glog.Debug(ctx, err.Error())
		return
	}
	for _, target := range nodeList {
		wg.Add(1)
		//glog.Debug(ctx, target)
		go PingTask(ctx, target.Host, &wg, target.PingType, target.Port)
	}
	wg.Wait()

	go CheckNodeStatus(ctx)
}

func PingTask(ctx context.Context, t string, wg *sync.WaitGroup, pingType int, hostPort int) {
	//var ipSlice []string
	//ipSlice = append(ipSlice, "kdvkr-02.xyz")
	//ipSlice = append(ipSlice, "kdvkr-04.xyz")
	pingCount, err := g.Cfg().Get(ctx, "node.pingCount")
	if err != nil {
		glog.Debug(ctx, err.Error())
		return
	}

	stat := model.PingSt{}
	stat.MinDelay = -1
	lossPK := 0
	addr, err := net.ResolveIPAddr("ip", t)
	if err == nil {
		for i := 0; i < pingCount.Int(); i++ {
			starttime := time.Now().UnixNano()

			var rest nettools.IPingResult
			if pingType == 0 { //icmp
				icmping := nettools.NewIcmpPing(addr.String(), time.Second*4)
				rest = icmping.Ping()
			} else if pingType == 1 {
				tcpping := nettools.NewTcpPing(addr.String(), hostPort, time.Second*4)
				rest = tcpping.Ping()
			}

			if rest.Error() == nil {
				delay := rest.Result()
				//seelog.Info("[func:IcmpPing] Finish Addr:", addr, delay, "ms")
				stat.AvgDelay = stat.AvgDelay + rest.Result()
				if stat.MaxDelay < delay {
					stat.MaxDelay = delay
				}
				if stat.MinDelay == -1 || stat.MinDelay > delay {
					stat.MinDelay = delay
				}
				stat.RevcPk = stat.RevcPk + 1
			} else {
				glog.Debug(ctx, "[func:StartPing IcmpPing] ID:", i, " IP:", addr, "| err:", rest.Error())
				lossPK = lossPK + 1
			}
			stat.SendPk = stat.SendPk + 1
			stat.LossPk = int((float64(lossPK) / float64(stat.SendPk)) * 100)
			duringtime := time.Now().UnixNano() - starttime
			time.Sleep(time.Duration(3000*1000000-duringtime) * time.Nanosecond)
		}
		if stat.RevcPk > 0 {
			stat.AvgDelay = stat.AvgDelay / stat.RevcPk
		} else {
			stat.AvgDelay = 0.0
		}
		glog.Debug(ctx, "[func:IcmpPing] Finish Addr:", addr, " MaxDelay:", stat.MaxDelay, " MinDelay:", stat.MinDelay, " AvgDelay:", stat.AvgDelay, " Revc:", stat.RevcPk, " LossPK:", stat.LossPk)
	} else {
		stat.AvgDelay = 0.00
		stat.MinDelay = 0.00
		stat.MaxDelay = 0.00
		stat.SendPk = 0
		stat.RevcPk = 0
		stat.LossPk = 100
		glog.Debug(ctx, "[func:IcmpPing] Finish Addr:", addr, " Unable to resolve destination host")
	}

	//添加到数据库
	AddPingLog(ctx, stat, t)
	wg.Done()
}

func AddPingLog(ctx context.Context, pingres model.PingSt, addr string) {
	err := service.Ping().Create(ctx, pingres, addr)
	if err != nil {
		glog.Debug(ctx, err.Error())
		return
	}
	return
}

func CheckNodeStatus(ctx context.Context) {

	nodeList, err := service.Node().GetNode(ctx)
	if err != nil {
		glog.Debug(ctx, err.Error())
		return
	}
	for _, target := range nodeList {
		glog.Debug(ctx, "start url req .....")
		//获取不通的IP进程url请求
		status, err := service.Ping().GetStatus(ctx, target.Host)
		if err != nil {
			glog.Error(ctx, err.Error())
			return
		}
		if status {

			if target.UrlStatus == 200 {
				return
			}

			r, err := g.Client().Get(ctx, target.Url)
			if err != nil {
				glog.Error(ctx, err.Error())
				return
			}
			defer r.Close()
			glog.Debug(ctx, "req :", target.Url, "status :", r.Status)
			if r.StatusCode == 200 {
				err := service.Node().UpdateNodeUrlStatus(ctx, model.NodeCreateInput{Host: target.Host, UrlStatus: r.StatusCode})
				if err != nil {
					glog.Debug(ctx, err.Error())
					return
				}
			}
		}

	}

}