package mux

import (
	"bufio"
	"fmt"
	"io"
	"net"
	"net/http"
	"net/http/httputil"
	_ "net/http/pprof"
	"strconv"
	"sync"
	"testing"
	"time"
	"unsafe"

	"github.com/astaxie/beego/logs"
	"github.com/cnlh/nps/lib/common"
)

var conn1 net.Conn
var conn2 net.Conn

func TestNewMux(t *testing.T) {
	go func() {
		http.ListenAndServe("0.0.0.0:8889", nil)
	}()
	logs.EnableFuncCallDepth(true)
	logs.SetLogFuncCallDepth(3)
	server()
	client()
	time.Sleep(time.Second * 3)
	go func() {
		m2 := NewMux(conn2, "tcp")
		for {
			//logs.Warn("npc starting accept")
			c, err := m2.Accept()
			if err != nil {
				logs.Warn(err)
				continue
			}
			//logs.Warn("npc accept success ")
			c2, err := net.Dial("tcp", "127.0.0.1:80")
			if err != nil {
				logs.Warn(err)
				c.Close()
				continue
			}
			//c2.(*net.TCPConn).SetReadBuffer(0)
			//c2.(*net.TCPConn).SetReadBuffer(0)
			go func(c2 net.Conn, c *conn) {
				wg := sync.WaitGroup{}
				wg.Add(1)
				go func() {
					_, err = common.CopyBuffer(c2, c)
					if err != nil {
						c2.Close()
						c.Close()
						logs.Warn("close npc by copy from nps", err, c.connId)
					}
					wg.Done()
				}()
				wg.Add(1)
				go func() {
					_, err = common.CopyBuffer(c, c2)
					if err != nil {
						c2.Close()
						c.Close()
						logs.Warn("close npc by copy from server", err, c.connId)
					}
					wg.Done()
				}()
				//logs.Warn("npc wait")
				wg.Wait()
			}(c2, c.(*conn))
		}
	}()

	go func() {
		m1 := NewMux(conn1, "tcp")
		l, err := net.Listen("tcp", "127.0.0.1:7777")
		if err != nil {
			logs.Warn(err)
		}
		for {
			//logs.Warn("nps starting accept")
			conns, err := l.Accept()
			if err != nil {
				logs.Warn(err)
				continue
			}
			//conns.(*net.TCPConn).SetReadBuffer(0)
			//conns.(*net.TCPConn).SetReadBuffer(0)
			//logs.Warn("nps accept success starting new conn")
			tmpCpnn, err := m1.NewConn()
			if err != nil {
				logs.Warn("nps new conn err ", err)
				continue
			}
			logs.Warn("nps new conn success ", tmpCpnn.connId)
			go func(tmpCpnn *conn, conns net.Conn) {
				go func() {
					_, err := common.CopyBuffer(tmpCpnn, conns)
					if err != nil {
						conns.Close()
						tmpCpnn.Close()
						logs.Warn("close nps by copy from user", tmpCpnn.connId, err)
					}
				}()
				//time.Sleep(time.Second)
				_, err = common.CopyBuffer(conns, tmpCpnn)
				if err != nil {
					conns.Close()
					tmpCpnn.Close()
					logs.Warn("close nps by copy from npc ", tmpCpnn.connId, err)
				}
			}(tmpCpnn, conns)
		}
	}()

	go NewLogServer()
	time.Sleep(time.Second * 5)
	//for i:=0;i<1000;i++ {
	//	go test_raw(i)
	//}

	for {
		time.Sleep(time.Second * 5)
	}
}

func server() {
	var err error
	l, err := net.Listen("tcp", "127.0.0.1:9999")
	if err != nil {
		logs.Warn(err)
	}
	go func() {
		conn1, err = l.Accept()
		if err != nil {
			logs.Warn(err)
		}
	}()
	return
}

func client() {
	var err error
	conn2, err = net.Dial("tcp", "127.0.0.1:9999")
	if err != nil {
		logs.Warn(err)
	}
}

func test_request() {
	conn, _ := net.Dial("tcp", "127.0.0.1:7777")
	for {
		conn.Write([]byte(`GET /videojs5/video.js HTTP/1.1
Host: 127.0.0.1:7777
Connection: keep-alive


`))
		r, err := http.ReadResponse(bufio.NewReader(conn), nil)
		if err != nil {
			logs.Warn("close by read response err", err)
			break
		}
		logs.Warn("read response success", r)
		b, err := httputil.DumpResponse(r, true)
		if err != nil {
			logs.Warn("close by dump response err", err)
			break
		}
		fmt.Println(string(b[:20]), err)
		time.Sleep(time.Second)
	}
}

func test_raw(k int) {
	for i := 0; i < 1; i++ {
		ti := time.Now()
		conn, _ := net.Dial("tcp", "127.0.0.1:7777")
		tid := time.Now()
		conn.Write([]byte(`GET / HTTP/1.1
Host: 127.0.0.1:7777


`))
		tiw := time.Now()
		buf := make([]byte, 3572)
		n, err := io.ReadFull(conn, buf)
		//n, err := conn.Read(buf)
		if err != nil {
			logs.Warn("close by read response err", err)
			break
		}
		//logs.Warn(n, string(buf[:50]), "\n--------------\n", string(buf[n-50:n]))
		//time.Sleep(time.Second)
		err = conn.Close()
		if err != nil {
			logs.Warn("close conn err ", err)
		}
		now := time.Now()
		du := now.Sub(ti).Seconds()
		dud := now.Sub(tid).Seconds()
		duw := now.Sub(tiw).Seconds()
		if du > 1 {
			logs.Warn("duration long", du, dud, duw, k, i)
		}
		if n != 3572 {
			logs.Warn("n loss", n, string(buf))
		}
	}
}

func TestNewConn(t *testing.T) {
	buf := common.GetBufPoolCopy()
	logs.Warn(len(buf), cap(buf))
	//b := pool.GetBufPoolCopy()
	//b[0] = 1
	//b[1] = 2
	//b[2] = 3
	b := []byte{1, 2, 3}
	logs.Warn(copy(buf[:3], b), len(buf), cap(buf))
	logs.Warn(len(buf), buf[0])
}

func TestDQueue(t *testing.T) {
	logs.EnableFuncCallDepth(true)
	logs.SetLogFuncCallDepth(3)
	d := new(bufDequeue)
	d.vals = make([]unsafe.Pointer, 8)
	go func() {
		time.Sleep(time.Second)
		for i := 0; i < 10; i++ {
			logs.Warn(i)
			logs.Warn(d.popTail())
		}
	}()
	go func() {
		time.Sleep(time.Second)
		for i := 0; i < 10; i++ {
			data := "test"
			go logs.Warn(i, unsafe.Pointer(&data), d.pushHead(unsafe.Pointer(&data)))
		}
	}()
	time.Sleep(time.Second * 3)
}

func TestChain(t *testing.T) {
	logs.EnableFuncCallDepth(true)
	logs.SetLogFuncCallDepth(3)
	d := new(bufChain)
	d.new(256)
	go func() {
		time.Sleep(time.Second)
		for i := 0; i < 1000; i++ {
			unsa, ok := d.popTail()
			str := (*string)(unsa)
			if ok {
				logs.Warn(i, str, *str, ok)
			} else {
				logs.Warn("nil", i, ok)
			}
		}
	}()
	go func() {
		time.Sleep(time.Second)
		for i := 0; i < 1000; i++ {
			data := "test " + strconv.Itoa(i)
			logs.Warn(data, unsafe.Pointer(&data))
			go d.pushHead(unsafe.Pointer(&data))
		}
	}()
	time.Sleep(time.Second * 10)
}