using DevExpress.Utils.Drawing.Helpers;
using NPOI.SS.Formula.Functions;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Web.Services.Description;
using System.Web.UI.WebControls.WebParts;
using System.Windows.Forms;
using UAS_MES_NEW.DataOperate;
using UAS_MES_NEW.Entity;
using UAS_MES_NEW.PublicMethod;

namespace UAS_MES_NEW.Make
{
    public partial class Make_WirelessThroughput : Form
    {
        public Make_WirelessThroughput()
        {
            InitializeComponent();
        }

        StringBuilder SQL = new StringBuilder();
        DataTable dt;
        DataHelper dh;

        private void Make_WirelessThroughput_Load(object sender, EventArgs e)
        {
            dh = SystemInf.dh;
            try
            {
                string hostName = Dns.GetHostName();
                IPHostEntry hostEntry = Dns.GetHostEntry(hostName);

                foreach (IPAddress ip in hostEntry.AddressList)
                {
                    if (ip.AddressFamily == AddressFamily.InterNetwork)
                    {
                        IPList.Text = ip.ToString();
                    }
                }
            }
            catch (Exception ex)
            {
                ShowMsg(0, $"获取iperf服务器地址失败,{ex.Message}");
            }
        }

        private void SN_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode != Keys.Enter) return;

            if (IsCheckSet()) return;

            string sn = SN.Text.Trim();

            if (IPList.Text.IndexOf('：') > 0) IPList.Text = IPList.Text.Replace("：", ":");
            else IPList.Text = IPList.Text.Trim();

            if (SN.Text.IndexOf('；') > 0) SN.Text = sn.Replace("；", ";");
            else SN.Text = sn;

            UpdateSN("L", SN.Text.Trim());
            
            ShowMsg(1, $"开始测试");
            int iSPort = Convert.ToInt32(IPList.Text.Trim().Split(':')[1]);
            var tester = new CameraIperfTester(
                timeOut: TestTime.Text.Trim(),
                cameraIp: ProductList.Text.Trim(),
                cameraPort: 23,
                username: Account.Text.Trim(),
                password: ProductList.Text.Trim(),
                iperfServerIp: IPList.Text.Trim().Split(':')[0],
                iperfServerPort: iSPort
            );

            string Msg = tester.TelnetConnect();
            if (Msg.Substring(0, 2) != "OK")
            {
                ShowMsg(0, $"Telnet登录失败,{Msg}");
                return;
            }
            ShowMsg(1, $"Telnet登录成功");

            string parentPath = Path.GetDirectoryName(ExePath.Text.Trim());
            string logsPath = Path.Combine(parentPath, "iperf_logs");
            if (!Directory.Exists(logsPath))
            {
                Directory.CreateDirectory(logsPath);
            }

            //string[] comList = new string[] {
            //    "killall iperf3_mstar",
            //    "cp /mnt/tf/usb1_1/iperf3_mstar/var/tmp/ -f",
            //    "chmod a+x /var/tmp/iperf3_mstar",
            //    $"/var/tmp/iperf3_mstar -s -p {iSPort} -i 1 &"
            //};
            string[] comList = new string[] {
                $"iperf3 -s -p {iSPort} -i 1&"
            };

            Msg = tester.StartIperfTest(SN.Text.Trim(), ExePath.Text.Trim(), logsPath, comList);
            if (Msg.Substring(0, 2) != "OK")
            {
                ShowMsg(0, $"iperf3启动失败,{Msg}");
                return;
            }
            string upRate = Msg.Split('|')[0];
            string downRate = Msg.Split('|')[1];
            ShowMsg(1, $"OK,上行速率: {upRate},下行速率: {downRate}");
            ResMax.Text = upRate;
            ResMin.Text = downRate;
            CheckPassStation(SN.Text, upRate, downRate, "PASS");
        }
        private void CheckPassStation(string sn, string upRate, string downRate, string testRes)
        {
            string oWO, oWOId, oErrMsg = "";
            if (LogicHandler.CheckStepSNAndMacode(workOrder.Text, User.UserSourceCode, sn, User.UserCode, out oWO, out oWOId, out oErrMsg))
            {
                if (LogicHandler.SetStepResult(oWO, User.UserSourceCode, sn, "无线吞吐量", "OK", User.UserCode, out oErrMsg))
                {
                    List<string> param = new List<string>() { };
                    string outMsg = "";
                    param.Add(oWO);
                    param.Add(sn);
                    param.Add(User.UserSourceCode);
                    param.Add(testRes);
                    param.Add("");
                    param.Add("");
                    param.Add("WirelessThroughput");
                    param.Add("");
                    param.Add(outMsg);
                    string[] paramList = param.ToArray();
                    dh.CallProcedure("cs_insert_testrejects", ref paramList);
                    if (paramList[8].Substring(0, 2) == "OK")
                    {
                        ShowMsg(1, $"序列号{sn}采集成功:测试结果为{testRes}");
                        LogicHandler.DoCommandLog(Tag.ToString(), User.UserCode, oWO, User.UserLineCode, User.UserSourceCode, "无线吞吐量", "无线吞吐量过站成功", sn, "");
                    }
                }
                else
                {
                    ShowMsg(0, $"序列号{sn},处理过站NG:{oErrMsg}");
                }
            }
            else
            {
                ShowMsg(0, $"序列号{sn},过站核对NG:{oErrMsg}");
            }
        }
        private bool IsCheckSet()
        {
            if (string.IsNullOrEmpty(IPList.Text))
            {
                ShowMsg(0, "请选择本地iperf 服务IP地址");
                return true;
            }

            if (string.IsNullOrEmpty(ProductList.Text))
            {
                ShowMsg(0, "请选择产品固定IP地址");
                return true;
            }

            if (string.IsNullOrEmpty(Account.Text))
            {
                ShowMsg(0, "请输入Telnet登录账号");
                return true;
            }

            if (string.IsNullOrEmpty(Password.Text))
            {
                ShowMsg(0, "请输入Telnet登录密码");
                return true;
            }

            if (string.IsNullOrEmpty(ExePath.Text))
            {
                ShowMsg(0, "请输入启动iperf3文件");
                return true;
            }

            if (!File.Exists(ExePath.Text))
            {
                Console.WriteLine("iperf3启动文件不存在");
            }

            if (string.IsNullOrEmpty(TestTime.Text))
            {
                ShowMsg(0, "请输入测试时长");
                return true;
            }

            //if (Locat1.Checked == false || Locat2.Checked == false || Locat3.Checked == false)
            //{
            //    ShowMsg(0, "请选择固件位置");
            //    return true;
            //}

            //if (Radio1.Checked == false || Radio1.Checked == false )
            //{
            //    ShowMsg(0, "请选择测试类型");
            //    return true;
            //}
            return false;
        }

        private void UpdateSN(string type, string sn)
        {
            if (type == "C")
            {
                serialNumber.Text = "";
                workOrder.Text = "";
                productCode.Text = "";
                productName.Text = "";
            }
            else if (type == "L")
            {
                SQL.Clear();
                SQL.Append($@"SELECT ms_sncode,ma_code,pr_code,pr_spec FROM makeserial,make,product
                        WHERE ms_sncode = '{sn}' AND ms_makecode = ma_code AND ms_prodcode = pr_code");
                dt = (DataTable)dh.ExecuteSql(SQL.ToString(), "select");
                if (dt.Rows.Count > 0)
                {
                    serialNumber.Text = dt.Rows[0]["ms_sncode"].ToString();
                    workOrder.Text = dt.Rows[0]["ma_code"].ToString();
                    productCode.Text = dt.Rows[0]["pr_code"].ToString();
                    productName.Text = dt.Rows[0]["pr_spec"].ToString();
                }
                else
                {
                    UpdateSN("C", sn);
                }
            }
        }

        public class CameraIperfTester
        {
            int timeOut;
            string cameraIp;
            int cameraPort;
            string username;
            string password;
            string iperfServerIp;
            int iperfServerPort;

            private TcpClient _telnetClient;
            private NetworkStream _telnetStream;
            public CameraIperfTester(string timeOut, string cameraIp, int cameraPort, string username, string password, string iperfServerIp, int iperfServerPort)
            {
                this.timeOut = Convert.ToInt32(timeOut) * 1000;
                this.cameraIp = cameraIp;
                this.cameraPort = cameraPort;
                this.username = username;
                this.password = password;
                this.iperfServerIp = iperfServerIp;
                this.iperfServerPort = iperfServerPort;
            }

            public string StartIperfTest(string SN, string iperfPath,string logDirectory, string[] CList)
            {
                if (_telnetStream == null)
                    return "NG,未建立连接";
                try
                {
                    foreach (var comItem in CList)
                    {
                        WriteStream(_telnetStream, comItem);
                        ReadStream(_telnetStream);
                    }

                    Thread.Sleep(1000); // 等服务端启动

                    string upLog = Path.Combine(logDirectory, $"{SN}_up.log");
                    string downLog = Path.Combine(logDirectory, $"{SN}_down.log");

                    RunIperfClient($"-c {cameraIp} -p {iperfServerPort} -t 10 -w 1M -i 1 -P 8 -R", iperfPath, upLog);
                    RunIperfClient($"-c {cameraIp} -p {iperfServerPort} -t 10 -w 1M -i 1 -P 8", iperfPath, downLog);

                    string upRate = ParseIperfBitrate(upLog);
                    string downRate = ParseIperfBitrate(downLog);

                    return $"OK,{upRate}|{downRate}";
                }
                catch (Exception ex)
                {
                    return $"NG,{ex.Message}";
                }
            }

            public string TelnetConnect()
            {
                try
                {
                    _telnetClient = new TcpClient();
                    IAsyncResult connectResult = _telnetClient.BeginConnect(cameraIp, cameraPort, null, null);
                    bool connected = connectResult.AsyncWaitHandle.WaitOne(TimeSpan.FromMilliseconds(timeOut));
                    if (!connected)
                    {
                        _telnetClient.Close();
                        return "NG,连接超时";
                    }

                    try
                    {
                        _telnetClient.EndConnect(connectResult);
                    }
                    catch (SocketException ex)
                    {
                        return $"NG,连接失败: {ex.Message}";
                    }

                    _telnetStream = _telnetClient.GetStream();
                    _telnetStream.ReadTimeout = 3000; // 3S读取超时

                    StringBuilder fullResponse = new StringBuilder();

                    string welcomeResponse = ReadStream(_telnetStream);
                    fullResponse.Append(welcomeResponse);

                    WriteStream(_telnetStream, username);
                    string usernameResponse = ReadStream(_telnetStream);
                    fullResponse.Append(usernameResponse);

                    WriteStream(_telnetStream, password);
                    string loginResponse = ReadStream(_telnetStream);
                    fullResponse.Append(loginResponse);

                    return $"OK,{fullResponse.ToString()}";
                }
                catch (Exception ex)
                {
                    return $"NG,{ex.Message}";
                }
            }
            private void RunIperfClient(string args, string path, string logPath)
            {
                var psi = new ProcessStartInfo
                {
                    FileName = path,
                    Arguments = args,
                    RedirectStandardOutput = true,
                    RedirectStandardError = true,
                    UseShellExecute = false,
                    CreateNoWindow = true
                };

                using (var process = Process.Start(psi))
                {
                    string output = process.StandardOutput.ReadToEnd();
                    string error = process.StandardError.ReadToEnd();
                    process.WaitForExit(5000); // 最多等 15 秒

                    File.WriteAllText(logPath, output + Environment.NewLine + error);
                }
            }
            private string ParseIperfBitrate(string logPath)
            {
                if (!File.Exists(logPath)) return "0.0";

                var lines = File.ReadAllLines(logPath);
                List<string> logItem = new List<string> { };
                foreach (var line in lines)
                {
                    if (line.Trim().StartsWith("[SUM]"))
                    {
                        logItem.Add(line);
                    }
                }
                if(logItem.Count > 0 && logItem[logItem.Count].Contains("receiver"))
                {
                    var matches = Regex.Matches(logItem[logItem.Count], @"(\d+\.?\d*)\s+(?:MBytes|Mbits/sec)");
                    if (matches.Count >= 2)
                    {
                        double value1 = double.Parse(matches[0].Groups[1].Value);
                        double value2 = double.Parse(matches[1].Groups[1].Value);
                        return value2.ToString();
                    }
                }
                return "0.0";
            }

            private void WriteStream(NetworkStream stream, string text)
            {
                byte[] data = Encoding.ASCII.GetBytes(text + "\r\n");
                stream.Write(data, 0, data.Length);
                stream.Flush();
            }

            private string ReadStream(NetworkStream stream)
            {
                StringBuilder sb = new StringBuilder();
                byte[] buffer = new byte[1024];
                int totalBytesRead = 0;
                int currentBytesRead = 0;
                DateTime lastReadTime = DateTime.UtcNow;
                TimeSpan idleTimeout = TimeSpan.FromMilliseconds(800); // 空闲超时

                try
                {
                    do
                    {
                        currentBytesRead = stream.Read(buffer, 0, buffer.Length);
                        if (currentBytesRead > 0)
                        {
                            sb.Append(Encoding.ASCII.GetString(buffer, 0, currentBytesRead));
                            totalBytesRead += currentBytesRead;
                            lastReadTime = DateTime.UtcNow;
                        }

                    } while ((DateTime.UtcNow - lastReadTime) < idleTimeout);

                }
                catch (IOException ioEx)
                {

                }
                catch (ObjectDisposedException)
                {
                    throw;
                }
                catch (SocketException sockEx)
                {
                    throw new IOException($"NG,网络错误: {sockEx.Message}", sockEx);
                }
                return sb.ToString();
            }
        }

        private void ShowMsg(int type, string msg)
        {
            msg = msg.Replace("\r", "").Replace("\n", "");
            string msgTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
            string showMsg = $"{msgTime}: {msg}\n";
            if (type == 0)
            {
                OperatResult.AppendText(showMsg, Color.Red);
            }
            else if (type == 1)
            {
                OperatResult.AppendText(showMsg, Color.Green);
            }
        }

        private void Radio1_Click(object sender, EventArgs e)
        {
            if (Radio1.Checked)
            {
                Radio2.Checked = false;
            }
        }

        private void Radio2_Click(object sender, EventArgs e)
        {
            if (Radio2.Checked)
            {
                Radio1.Checked = false;
            }
        }

        private void Locat1_Click(object sender, EventArgs e)
        {
            if (Locat1.Checked)
            {
                Locat2.Checked = false;
                Locat3.Checked = false;
            }
        }

        private void Locat2_Click(object sender, EventArgs e)
        {
            if (Locat2.Checked)
            {
                Locat1.Checked = false;
                Locat3.Checked = false;
            }
        }

        private void Locat3_Click(object sender, EventArgs e)
        {
            if (Locat3.Checked)
            {
                Locat1.Checked = false;
                Locat2.Checked = false;
            }
        }

        private void Account_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode != Keys.Enter) return;
            Password.Focus();
            Password.SelectAll();
        }

        private void Password_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode != Keys.Enter) return;
            TestTime.Focus();
            TestTime.SelectAll();
        }

        private void ExePath_Click(object sender, EventArgs e)
        {
            using (OpenFileDialog openFileDialog = new OpenFileDialog())
            {
                openFileDialog.Title = "选择iperf3启动文件";
                openFileDialog.Filter = "可执行文件 (*.exe)|*.exe|所有文件 (*.*)|*.*";
                openFileDialog.FilterIndex = 1; 
                openFileDialog.RestoreDirectory = true;

                // 设置初始目录（可选）
                if (!string.IsNullOrEmpty(ExePath.Text) && System.IO.File.Exists(ExePath.Text))
                {
                    openFileDialog.InitialDirectory = System.IO.Path.GetDirectoryName(ExePath.Text);
                }
                else
                {
                    openFileDialog.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles);
                }

                if (openFileDialog.ShowDialog() == DialogResult.OK)
                {
                    ExePath.Text = openFileDialog.FileName;
                    ShowMsg(1, $"已成功选择iperf3启动文件");
                }
            }
        }

        private void Clear_Click(object sender, EventArgs e)
        {
            OperatResult.Clear();
        }
    }
}