package event

import (
	"encoding/hex"
	"fmt"
	"git.rosy.net.cn/jx-callback/business/model/dao"
	"git.rosy.net.cn/jx-callback/globals"
	"github.com/astaxie/beego/client/orm"
	"io"
	"net"
	"strconv"
	"strings"
	"sync"
)

const (
	heartText        = "1e000f02000151"
	printText        = "1e00180200"
	printSuccessText = "1e001802000150"
)

var (
	tcpClient = &TcpClient{}
)

//连接的客户端,吧每个客户端都放进来
type TcpClient struct {
	Clients map[string]net.Conn
	s       *sync.RWMutex
}

func Init() {
	listenTcp()
	go handleTcpMessages()
}

func listenTcp() {
	tcpClient.Clients = make(map[string]net.Conn)
	l, err := net.Listen("tcp", ":8000")
	if err != nil {
		fmt.Println("listen error:", err)
		return
	}
	for {
		c, err := l.Accept()
		if err != nil {
			fmt.Println("accept error:", err)
			break
		}
		go handleConn(c)
	}
}

func handleConn(c net.Conn) {
	var (
		printNo string //打印机编号
		db      = dao.GetDB()
	)
	db.Db = orm.NewOrmUsingDB("api") //读写这个库
	if c == nil {
		globals.SugarLogger.Debugf("conn is nil")
		return
	}
	defer c.Close()
	buffer := make([]byte, 1024)
	for {
		n, err := c.Read(buffer)
		if err != nil {
			if err == io.EOF {
				fmt.Println("connection close")
			} else {
				fmt.Println("ReadString err", err)
			}
			return
		}
		//看是心跳还是打印返回
		data := hex.EncodeToString(buffer[:n])
		//证明是心跳
		if strings.Contains(data, heartText) {
			printNo = data[len(heartText) : len(data)-8]
			if tcpClient.Clients[printNo] == nil {
				tcpClient.Clients[printNo] = c
			} else {
				//改变打印机状态
			}
		} else if strings.Contains(data, printText) {
			//证明是打印成功
			if strings.Contains(data, printSuccessText) {
				//打印成功改变打印表的状态
			} else {
				//打印失败也改变状态并更新失败原因
			}
		}
	}
}

func handleTcpMessages() {
	for {

	}
}

func Hextob(str string) []byte {
	slen := len(str)
	bHex := make([]byte, len(str)/2)
	ii := 0
	for i := 0; i < len(str); i = i + 2 {
		if slen != 1 {
			ss := string(str[i]) + string(str[i+1])
			bt, _ := strconv.ParseInt(ss, 16, 32)
			bHex[ii] = byte(bt)
			ii = ii + 1
			slen = slen - 2
		}
	}
	return bHex
}

func int2h8l8(i int64) (h, l string) {
	origin2 := fmt.Sprintf("%b", i)
	flag := 16 - len(origin2)
	for i := 0; i < flag; i++ {
		origin2 = "0" + origin2
	}
	begin8 := origin2[:8]
	end8 := origin2[8:]
	r1, _ := strconv.ParseInt(begin8, 2, 32)
	r2, _ := strconv.ParseInt(end8, 2, 32)
	h = fmt.Sprintf("%x", r1)
	l = fmt.Sprintf("%x", r2)
	if len(h) < 2 {
		h = "0" + h
	}
	if len(l) < 2 {
		l = "0" + l
	}
	return h, l
}