package server

import (
	"dlt645-server/protocol"
	"github.com/gogf/gf/net/gtcp"
	"github.com/gogf/gf/os/glog"
	"io"
	"net"
	"strings"
	"syscall"
	"time"
)

type Client struct {
	Id            string
	Address       []byte
	srv           *Server
	conn          *gtcp.Conn
	sendChan      chan []byte
	closeChan     chan struct{}
	closeHandler  func(id string, c *Client)
	lastHeartBeat time.Time
	gatewayId     uint16
	isReg         bool
}

func NewClient(s *Server, conn *gtcp.Conn) *Client {
	return &Client{
		srv:       s,
		conn:      conn,
		sendChan:  make(chan []byte),
		closeChan: make(chan struct{}),
	}
}

func (c *Client) SendLoop(ctx *protocol.PacketContext, data *protocol.Data) {
	defer c.srv.grWG.Done()

	for {
		select {
		case buf := <-c.sendChan:
			err := c.send(buf)
			if err != nil {
				if err != nil {
					glog.Errorf("指令发送失败:%s", err.Error())
				}
				continue
			}
			timer := time.NewTimer(5 * time.Second)
			for {
				select {
				case <-timer.C:
					glog.Errorf("读取超时:%s", err.Error())
					continue
				default:
					receiveBuf, err := c.conn.Recv(-1)
					if err != nil {
						c.readError(err)
						continue
					}
					if len(buf) > 0 {
						result, err := c.srv.message.Decode(ctx, receiveBuf, data)
						if err != nil {
							glog.Errorf("解析报文失败:%s", err.Error())
						}
						if !c.isReg {
							c.SetId(ctx.GetId())
							c.isReg = true
							continue
						}
						var reportData interface{}
						switch result.DataType {
						case protocol.IsPower:
							reportData = protocol.PowerData{
								ActivePower: result.ActivePower,
							}
						case protocol.IsVData:
							reportData = protocol.VIData{
								AV: result.AV,
								BV: result.BV,
								CV: result.CV,
							}
						case protocol.IsIData:
							reportData = protocol.IData{
								AI2: result.AI,
								BI2: result.BI,
								CI2: result.CI,
							}
						default:
							continue
						}
						if err := c.srv.ReportStatus(c.Id, reportData); err != nil {
							glog.Errorf("数据上报发送错误：%s", err.Error())
							continue
						}
					}
				}

			}

		}
	}
}

func (c *Client) SetId(id string) {
	c.Id = id
}

func (c *Client) SetAddress(address []byte) {
	c.Address = address
}

func (c *Client) readError(err error) {
	defer c.closeConnection()
	if err == io.EOF || isErrConnReset(err) {
		return
	}
	glog.Errorf("读取数据发生错误：%s", err.Error())
}

func (c *Client) closeConnection() {
	_ = c.conn.Close()
	c.conn = nil
	close(c.closeChan)
	c.SetId("")
	c.isReg = false
	if c.closeHandler != nil {
		c.closeHandler(c.Id, c)
	}
}

// isErrConnReset read: connection reset by peer
func isErrConnReset(err error) bool {
	if ne, ok := err.(*net.OpError); ok {
		return strings.Contains(ne.Err.Error(), syscall.ECONNRESET.Error())
	}
	return false
}

func (c *Client) send(buf []byte) error {
	if c.conn == nil {
		return nil
	}
	err := c.conn.Send(buf)
	if err != nil {
		glog.Error(err)
		c.closeConnection()
		return err
	}
	glog.Debugf("指令发送成功:%2X", buf)
	return nil
}

func (c *Client) GetActivePower(ctx *protocol.PacketContext) {
	defer c.srv.grWG.Done()
	for {
		entity := protocol.Dlt_0x33333433{}
		sendByte, _ := entity.Encode(ctx)
		c.sendChan <- sendByte
		time.Sleep(10 * time.Second)
	}

}

func (c *Client) GetAV(ctx *protocol.PacketContext) {
	defer c.srv.grWG.Done()
	for {
		entity := protocol.Dlt_0x33343435{}
		sendByte, _ := entity.Encode(ctx)
		c.sendChan <- sendByte
		time.Sleep(10 * time.Second)
	}
}

func (c *Client) GetAI(ctx *protocol.PacketContext) {
	defer c.srv.grWG.Done()
	for {
		entity := protocol.Dlt_0x33343535{}
		sendByte, _ := entity.Encode(ctx)
		c.sendChan <- sendByte
		time.Sleep(10 * time.Second)
	}
}

func (c *Client) GetBV(ctx *protocol.PacketContext, bvChan, biChan chan struct{}) {
	defer c.srv.grWG.Done()
	for {
		entity := protocol.Dlt_0x33353435{}
		sendByte, _ := entity.Encode(ctx)
		c.sendChan <- sendByte
		time.Sleep(10 * time.Second)
	}
}

func (c *Client) GetBI(ctx *protocol.PacketContext, biChan, cvChan chan struct{}) {
	defer c.srv.grWG.Done()
	for {
		entity := protocol.Dlt_0x33353535{}
		sendByte, _ := entity.Encode(ctx)
		c.sendChan <- sendByte
		time.Sleep(10 * time.Second)
	}
}
func (c *Client) GetCV(ctx *protocol.PacketContext, cvChan, ciChan chan struct{}) {
	defer c.srv.grWG.Done()
	for {
		<-cvChan
		entity := protocol.Dlt_0x33363435{}
		sendByte, _ := entity.Encode(ctx)
		c.sendChan <- sendByte
		time.Sleep(10 * time.Second)
	}
}
func (c *Client) GetCI(ctx *protocol.PacketContext, ciChan, powerChan chan struct{}) {
	defer c.srv.grWG.Done()
	for {
		<-ciChan
		entity := protocol.Dlt_0x33363535{}
		sendByte, _ := entity.Encode(ctx)
		c.sendChan <- sendByte
		time.Sleep(10 * time.Second)
	}
}

func (c *Client) SendGetAddress(ctx *protocol.PacketContext) []byte {
	entity := new(protocol.Dlt_0x93)
	sendBuf, _ := entity.Encode(ctx)
	return sendBuf
}