package stc

import (
	"fmt"
	"net"
	"pbx-api-gin/internal/app/ami/action"
	"pbx-api-gin/internal/app/stc/broadcast"
	msgdata "pbx-api-gin/internal/app/stc/data"
	"pbx-api-gin/pkg/lfshook"
	"sync"
	"syscall"

	"time"
)

const RemotePort = 10100
const LocalPort = 10201
const RemoteAddr = "10.0.11.11"

func StartStcConnection(conn net.Conn) {
	//var conn net.Conn
	var wg sync.WaitGroup

	for {
		// 尝试建立连接
		conn, err := CreateConnection()
		if err != nil {
			time.Sleep(2 * time.Second)
			continue
		}
		lfshook.NewLogger().Logger.Infof("Connect success :%s:%d", RemoteAddr, RemotePort)
		// 启动消息处理和心跳协程
		wg.Add(2)
		go func() {
			defer wg.Done()
			broadcast.HandleStcCmd(conn) // 处理消息
		}()
		go func() {
			defer wg.Done()
			Sendheartbeat(conn) // 发送心跳
		}()

		//start AMI
		go action.StartAMI(func() {
			lfshook.NewLogger().Info("ami callback")
			// 首次连接才进行初始化
		}, []func(event map[string]string){}, conn)

		// 等待连接断开
		wg.Wait()
		fmt.Println("Start Reconnect ...")
		conn.Close()                // 显式关闭旧连接
		time.Sleep(time.Second * 1) // 可选：断开后等待1秒再重试
	}
}

// 返回错误而不是终止程序
func CreateConnection() (net.Conn, error) {
	lfshook.NewLogger().Logger.Infof("========Connect server  IP:%s  :Port:%d", RemoteAddr, RemotePort)
	// 创建 Dialer
	dialer := &net.Dialer{
		LocalAddr: &net.TCPAddr{IP: net.ParseIP("0.0.0.0"), Port: LocalPort}, // 固定本地端口
		Control:   controlTCPConn,
	}

	DialAddr := fmt.Sprintf("%s:%d", RemoteAddr, RemotePort)
	conn, err := dialer.Dial("tcp", DialAddr)
	if err != nil {
		lfshook.NewLogger().Logger.Infof("========Connect server err :%+v", err)
		return nil, err
	}

	return conn, nil
}

func controlTCPConn(network, address string, c syscall.RawConn) error {
	return c.Control(func(fd uintptr) {
		syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1)
		// 注意：SO_REUSEPORT 在某些系统可用（如 Linux），但非标准
	})
}

func Sendheartbeat(conn net.Conn) {
	var count uint8
	protocol := msgdata.NewProtocol()
	// 初始化协议...
	ticker := time.NewTicker(2 * time.Second)
	defer ticker.Stop()

	for {
		select {
		case <-ticker.C:
			count++
			// 编码并发送数据...
			encoded, err := protocol.Encode()
			if err != nil {
				fmt.Printf("encode err : %v\n", err)
				return
			}
			if conn != nil {
				_, err = conn.Write(encoded)
				if err != nil {
					fmt.Printf("Send hearbeat err: %v\n", err)
					conn.Close()
					return // 触发重连
				}
			}
		}
	}
}

// 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
}