package stc

import (
	"fmt"
	"log"
	"net"
	"pbx-api-gin/internal/app/stc/broadcast"
	msgdata "pbx-api-gin/internal/app/stc/data"

	"syscall"
	"time"
)

func StartStcConnection(conn net.Conn) {

	//read msg
	go func(conn net.Conn) {
		broadcast.HandleStcCmd(conn)

	}(conn)

	//heartbeat
	go func(conn net.Conn) {
		Sendheartbeat(conn)
	}(conn)

}

func CreateConnection(ServerAddr string, Port int) net.Conn {
	// connect server
	conn, err := net.DialTCP("tcp", &net.TCPAddr{
		IP:   net.ParseIP("0.0.0.0"),
		Port: 0,
	}, &net.TCPAddr{
		IP:   net.ParseIP(ServerAddr),
		Port: Port,
	})
	if err != nil {
		fmt.Println("Error conn server:", err)
		log.Fatal(err)
	}

	fileDesc, _ := conn.File()
	fd := fileDesc.Fd()

	syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1)
	return conn
}

func Sendheartbeat(conn net.Conn) {
	var count uint8
	//init heartbeat data
	protocol := msgdata.NewProtocol()
	protocol.SourceID = 0x02
	protocol.DestinationID = 0x01
	protocol.MessageID = 0x21
	protocol.DataLength = 0x04

	ticker := time.NewTicker(2 * time.Second)
	defer ticker.Stop()
	for range ticker.C {

		count = count + 1
		protocol.Data = []byte{count, 0x00, 0x00, 0x00}
		encoded, errEn := protocol.Encode()
		if errEn != nil {
			fmt.Println("Encode error:", errEn)
			return
		}

		_, err := conn.Write(encoded)
		if err != nil {
			fmt.Println("send heartbeat err:", err)
			return
		}
	}
}

// 检查PA server是主状态还是从状态
func CheckMaster(conn net.Conn) bool {
	//	var count uint8
	//init heartbeat data
	protocol := msgdata.NewProtocol()
	protocol.SourceID = 0x02
	protocol.DestinationID = 0x01
	protocol.MessageID = 0x21
	protocol.DataLength = 0x04
	return false
}