using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.IO;
using System.Net.Http;
using System.Net.Sockets;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;
using System.Text.Json;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Threading;
using IWshRuntimeLibrary;
using MaterialDesignThemes.Wpf;
using Microsoft.Win32;
using NginxConfigParser;
using OnaCore;
using Sheas_Cealer.Consts;
using Sheas_Cealer.Preses;
using Sheas_Cealer.Utils;
using YamlDotNet.Serialization;
using YamlDotNet.Serialization.NamingConventions;
using File = System.IO.File;

namespace Sheas_Cealer.Wins;

public partial class MainWin : Window
{
    private static MainPres? MainPres;
    private static readonly HttpClient MainClient = new(new HttpClientHandler() { ServerCertificateCustomValidationCallback = HttpClientHandler.DangerousAcceptAnyServerCertificateValidator });
    private static DispatcherTimer? HoldButtonTimer;
    private static readonly DispatcherTimer ProxyTimer = new() { Interval = TimeSpan.FromSeconds(0.1) };
    private static readonly FileSystemWatcher CealingHostWatcher = new(Path.GetDirectoryName(MainConst.CealingHostPath)!, Path.GetFileName(MainConst.CealingHostPath)) { EnableRaisingEvents = true, NotifyFilter = NotifyFilters.LastWrite };
    private static readonly FileSystemWatcher NginxConfWatcher = new(Path.GetDirectoryName(MainConst.NginxConfPath)!, Path.GetFileName(MainConst.NginxConfPath)) { EnableRaisingEvents = true, NotifyFilter = NotifyFilters.LastWrite };
    private static readonly FileSystemWatcher MihomoConfWatcher = new(Path.GetDirectoryName(MainConst.MihomoConfPath)!, Path.GetFileName(MainConst.MihomoConfPath)) { EnableRaisingEvents = true, NotifyFilter = NotifyFilters.LastWrite };
    private static readonly Dictionary<string, List<(List<(string hostIncludeDomain, string hostExcludeDomain)> hostDomainPairs, string hostSni, string hostIp)>> HostRulesDict = [];
    private static string CealArgs = string.Empty;
    private static NginxConfig? NginxConfs;
    private static string? ExtraNginxConfs;
    private static string? MihomoConfs;
    private static string? ExtraMihomoConfs;
    private static int GameClickTime = 0;
    private static int GameFlashInterval = 1000;

    internal MainWin(string[] args)
    {
        InitializeComponent();

        DataContext = MainPres = new(args);

        ProxyTimer.Tick += ProxyTimer_Tick;
        CealingHostWatcher.Changed += CealingHostWatcher_Changed;
        NginxConfWatcher.Changed += NginxConfWatcher_Changed;
        MihomoConfWatcher.Changed += MihomoConfWatcher_Changed;
    }

    protected override void OnSourceInitialized(EventArgs e) => IconRemover.RemoveIcon(this);
    private async void MainWin_Loaded(object sender, RoutedEventArgs e)
    {
        SettingsBox.Focus();

        await Task.Run(() =>
        {
            ProxyTimer.Start();

            foreach (string hostPath in Directory.GetFiles(CealingHostWatcher.Path, CealingHostWatcher.Filter))
                CealingHostWatcher_Changed(null!, new(new(), Path.GetDirectoryName(hostPath)!, Path.GetFileName(hostPath)));

            MihomoConfWatcher_Changed(null!, null!);
        });
    }
    private void MainWin_Closing(object sender, CancelEventArgs e) => Application.Current.Shutdown();

    private void MainWin_DragEnter(object sender, DragEventArgs e)
    {
        e.Effects = e.Data.GetDataPresent(DataFormats.FileDrop) ? DragDropEffects.Link : DragDropEffects.None;
        e.Handled = true;
    }
    private void MainWin_Drop(object sender, DragEventArgs e)
    {
        if (e.Data.GetDataPresent(DataFormats.FileDrop))
            MainPres!.BrowserPath = ((string[])e.Data.GetData(DataFormats.FileDrop))[0];
    }

    private void SettingsBox_TextChanged(object sender, TextChangedEventArgs e)
    {
        switch (MainPres!.SettingsMode)
        {
            case MainConst.SettingsMode.BrowserPathMode:
                MainPres.BrowserPath = SettingsBox.Text;
                return;
            case MainConst.SettingsMode.UpstreamUrlMode:
                MainPres.UpstreamUrl = SettingsBox.Text;
                return;
            case MainConst.SettingsMode.ExtraArgsMode:
                MainPres.ExtraArgs = SettingsBox.Text;
                return;
        }
    }
    private void SettingsModeButton_Click(object sender, RoutedEventArgs e)
    {
        MainPres!.SettingsMode = MainPres.SettingsMode switch
        {
            MainConst.SettingsMode.BrowserPathMode => MainConst.SettingsMode.UpstreamUrlMode,
            MainConst.SettingsMode.UpstreamUrlMode => MainConst.SettingsMode.ExtraArgsMode,
            MainConst.SettingsMode.ExtraArgsMode => MainConst.SettingsMode.BrowserPathMode,
            _ => throw new UnreachableException()
        };
    }
    private void SettingsFunctionButton_Click(object sender, RoutedEventArgs e)
    {
        OpenFileDialog browserPathDialog = new() { Filter = $"{MainConst._BrowserPathDialogFilterFileType} (*.exe)|*.exe" };

        switch (MainPres!.SettingsMode)
        {
            case MainConst.SettingsMode.BrowserPathMode when browserPathDialog.ShowDialog().GetValueOrDefault():
                SettingsBox.Focus();
                MainPres.BrowserPath = browserPathDialog.FileName;
                return;
            case MainConst.SettingsMode.UpstreamUrlMode:
                MainPres.UpstreamUrl = MainConst.DefaultUpstreamUrl;
                return;
            case MainConst.SettingsMode.ExtraArgsMode:
                MainPres.ExtraArgs = string.Empty;
                return;
        }
    }

    private void StartButton_Click(object sender, RoutedEventArgs e)
    {
        if (HoldButtonTimer == null || HoldButtonTimer.IsEnabled)
            StartButtonHoldTimer_Tick(null, null!);
    }
    private void StartButton_PreviewMouseDown(object sender, MouseButtonEventArgs e)
    {
        HoldButtonTimer = new() { Interval = TimeSpan.FromSeconds(1) };
        HoldButtonTimer.Tick += StartButtonHoldTimer_Tick;
        HoldButtonTimer.Start();
    }
    private async void StartButtonHoldTimer_Tick(object? sender, EventArgs e)
    {
        HoldButtonTimer?.Stop();

        if (string.IsNullOrWhiteSpace(CealArgs))
            throw new Exception(MainConst._HostErrorMsg);
        if (MessageBox.Show(MainConst._KillBrowserProcessPrompt, string.Empty, MessageBoxButton.YesNo) != MessageBoxResult.Yes)
            return;

        IWshShortcut uncealedBrowserShortcut = (IWshShortcut)new WshShell().CreateShortcut(MainConst.UncealedBrowserPath);
        uncealedBrowserShortcut.TargetPath = MainPres!.BrowserPath;
        uncealedBrowserShortcut.Description = MainConst.UncealedBrowserDescription;
        uncealedBrowserShortcut.Save();

        foreach (Process browserProcess in Process.GetProcessesByName(Path.GetFileNameWithoutExtension(MainPres.BrowserPath)))
        {
            browserProcess.Kill();
            browserProcess.WaitForExit();
        }

        await Task.Run(() =>
        {
            new CommandProc(sender == null).ShellRun(AppDomain.CurrentDomain.SetupInformation.ApplicationBase!, ($"{CealArgs} {MainPres!.ExtraArgs}").Trim());
        });
    }
    private void NginxButton_Click(object sender, RoutedEventArgs e)
    {
        if (HoldButtonTimer == null || HoldButtonTimer.IsEnabled)
            NginxButtonHoldTimer_Tick(null, null!);
    }
    private void NginxButton_PreviewMouseDown(object sender, MouseButtonEventArgs e)
    {
        HoldButtonTimer = new() { Interval = TimeSpan.FromSeconds(1) };
        HoldButtonTimer.Tick += NginxButtonHoldTimer_Tick;
        HoldButtonTimer.Start();
    }
    private async void NginxButtonHoldTimer_Tick(object? sender, EventArgs e)
    {
        HoldButtonTimer?.Stop();

        if (!MainPres!.IsNginxRunning)
        {
            if (MessageBox.Show(MainConst._LaunchProxyPrompt, string.Empty, MessageBoxButton.YesNo) != MessageBoxResult.Yes)
                return;
            if (!File.Exists(MainConst.NginxConfPath))
                File.Create(MainConst.NginxConfPath).Dispose();
            if (!Directory.Exists(MainConst.NginxLogsPath))
                Directory.CreateDirectory(MainConst.NginxLogsPath);
            if (!Directory.Exists(MainConst.NginxTempPath))
                Directory.CreateDirectory(MainConst.NginxTempPath);

            RSA certKey = RSA.Create(2048);

            CertificateRequest rootCertRequest = new(MainConst.NginxRootCertSubjectName, certKey, HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1);
            rootCertRequest.CertificateExtensions.Add(new X509BasicConstraintsExtension(true, false, 0, false));
            X509Certificate2 rootCert = rootCertRequest.CreateSelfSigned(DateTimeOffset.UtcNow, DateTimeOffset.UtcNow.AddYears(100));
            using X509Store certStore = new(StoreName.Root, StoreLocation.CurrentUser, OpenFlags.ReadWrite);

            certStore.Add(rootCert);
            certStore.Close();

            CertificateRequest childCertRequest = new(MainConst.NginxChildCertSubjectName, certKey, HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1);
            SubjectAlternativeNameBuilder childCertSanBuilder = new();

            string hostsConfAppendContent = MainConst.HostsConfStartMarker;

            foreach (List<(List<(string hostIncludeDomain, string hostExcludeDomain)> hostDomainPairs, string hostSni, string hostIp)> hostRules in HostRulesDict.Values)
                foreach ((List<(string hostIncludeDomain, string hostExcludeDomain)> hostDomainPairs, _, _) in hostRules)
                    foreach ((string hostIncludeDomain, _) in hostDomainPairs)
                    {
                        // 配置证书 SAN
                        if (hostIncludeDomain.StartsWith("*."))
                        {
                            childCertSanBuilder.AddDnsName("*" + hostIncludeDomain.Replace("*", string.Empty));
                            continue;
                        }
                        else if (hostIncludeDomain.StartsWith('*'))
                            childCertSanBuilder.AddDnsName("*." + hostIncludeDomain.Replace("*", string.Empty));

                        childCertSanBuilder.AddDnsName(hostIncludeDomain.Replace("*", string.Empty));

                        // 配置 hosts
                        string hostIncludeDomainWithoutWildcard = hostIncludeDomain.Replace("*", string.Empty);

                        if (hostIncludeDomainWithoutWildcard.StartsWith('^') || hostIncludeDomainWithoutWildcard.EndsWith('^') ||
                            hostIncludeDomainWithoutWildcard.StartsWith('.') || hostIncludeDomainWithoutWildcard.EndsWith('.'))
                            continue;

                        hostsConfAppendContent += $"127.0.0.1 {hostIncludeDomainWithoutWildcard.Split('^', 2)[0]}\n";

                        if (hostIncludeDomain.StartsWith('*'))
                            hostsConfAppendContent += $"127.0.0.1 www.{hostIncludeDomainWithoutWildcard.Split('^', 2)[0]}\n";
                    }

            childCertRequest.CertificateExtensions.Add(childCertSanBuilder.Build());
            X509Certificate2 childCert = childCertRequest.Create(rootCert, rootCert.NotBefore, rootCert.NotAfter, Guid.NewGuid().ToByteArray());

            File.WriteAllText(MainConst.NginxCertPath, childCert.ExportCertificatePem());
            File.WriteAllText(MainConst.NginxKeyPath, certKey.ExportPkcs8PrivateKeyPem());

            hostsConfAppendContent += MainConst.HostsConfEndMarker;
            File.AppendAllText(MainConst.HostsConfPath, hostsConfAppendContent);

            MainPres.IsNginxIniting = true;
            NginxConfWatcher.EnableRaisingEvents = false;
            NginxConfs!.Save(MainConst.NginxConfPath);

            await Task.Run(() =>
            {
                new NginxProc().ShellRun(AppDomain.CurrentDomain.SetupInformation.ApplicationBase!, @$"-c ""{MainConst.NginxConfPath}""");
            });

            while (true)
            {
                try
                {
                    await Http.GetAsync<HttpResponseMessage>("https://localhost", MainClient);
                    break;
                }
                catch (HttpRequestException ex) when (ex.InnerException is SocketException innerEx)
                {
                    if (innerEx.SocketErrorCode != SocketError.ConnectionRefused)
                        break;
                }

                if (!MainPres.IsNginxRunning)
                    break;
            }

            File.WriteAllText(MainConst.NginxConfPath, ExtraNginxConfs);
            NginxConfWatcher.EnableRaisingEvents = true;
            MainPres.IsNginxIniting = false;

            if (sender == null)
                Application.Current.Dispatcher.InvokeShutdown();
        }
        else
            foreach (Process nginxProcess in Process.GetProcessesByName(Path.GetFileNameWithoutExtension(MainConst.NginxPath)))
            {
                nginxProcess.Kill();
                nginxProcess.WaitForExit();
            }
    }
    private void MihomoButton_Click(object sender, RoutedEventArgs e)
    {
        if (HoldButtonTimer == null || HoldButtonTimer.IsEnabled)
            MihomoButtonHoldTimer_Tick(null, null!);
    }
    private void MihomoButton_PreviewMouseDown(object sender, MouseButtonEventArgs e)
    {
        HoldButtonTimer = new() { Interval = TimeSpan.FromSeconds(1) };
        HoldButtonTimer.Tick += MihomoButtonHoldTimer_Tick;
        HoldButtonTimer.Start();
    }
    private async void MihomoButtonHoldTimer_Tick(object? sender, EventArgs e)
    {
        HoldButtonTimer?.Stop();

        if (!MainPres!.IsMihomoRunning)
        {
            if (MessageBox.Show(MainConst._LaunchProxyPrompt, string.Empty, MessageBoxButton.YesNo) != MessageBoxResult.Yes)
                return;
            if (!File.Exists(MainConst.MihomoConfPath))
                File.Create(MainConst.MihomoConfPath).Dispose();

            MainPres.IsMihomoIniting = true;
            MihomoConfWatcher.EnableRaisingEvents = false;
            File.WriteAllText(MainConst.MihomoConfPath, MihomoConfs);

            await Task.Run(() =>
            {
                new MihomoProc().ShellRun(AppDomain.CurrentDomain.SetupInformation.ApplicationBase!, @$"-d ""{Path.GetDirectoryName(MainConst.MihomoConfPath)}""");
            });

            while (true)
            {
                try
                {
                    await Http.GetAsync<HttpResponseMessage>("http://localhost:7880", MainClient);
                    break;
                }
                catch (HttpRequestException ex) when (ex.InnerException is SocketException innerEx)
                {
                    if (innerEx.SocketErrorCode != SocketError.ConnectionRefused)
                        break;
                }

                if (!MainPres.IsMihomoRunning)
                    break;
            }

            File.WriteAllText(MainConst.MihomoConfPath, ExtraMihomoConfs);
            MihomoConfWatcher.EnableRaisingEvents = true;
            MainPres.IsMihomoIniting = false;

            if (sender == null)
                Application.Current.Dispatcher.InvokeShutdown();
        }
        else
            foreach (Process mihomoProcess in Process.GetProcessesByName("Cealing-Mihomo"))
            {
                mihomoProcess.Kill();
                mihomoProcess.WaitForExit();
            }
    }

    private void EditHostButton_Click(object sender, RoutedEventArgs e)
    {
        Button? senderButton = sender as Button;

        string hostPath = senderButton == EditLocalHostButton ? MainConst.LocalHostPath : MainConst.UpstreamHostPath;

        if (!File.Exists(hostPath))
            File.Create(hostPath).Dispose();

        ProcessStartInfo processStartInfo = new(hostPath) { UseShellExecute = true };
        Process.Start(processStartInfo);
    }
    private void EditConfButton_Click(object sender, RoutedEventArgs e)
    {
        Button? senderButton = sender as Button;
        string confPath = senderButton == EditHostsConfButton ? MainConst.HostsConfPath :
            senderButton == EditNginxConfButton ? MainConst.NginxConfPath : MainConst.MihomoConfPath;

        if (!File.Exists(confPath))
            File.Create(confPath).Dispose();

        ProcessStartInfo processStartInfo = new(confPath) { UseShellExecute = true };
        Process.Start(processStartInfo);
    }
    private async void UpdateUpstreamHostButton_Click(object sender, RoutedEventArgs e)
    {
        string upstreamUpstreamHostUrl = (MainPres!.UpstreamUrl.StartsWith("http://") || MainPres!.UpstreamUrl.StartsWith("https://") ? string.Empty : "https://") + MainPres!.UpstreamUrl;
        string upstreamUpstreamHostString = await Http.GetAsync<string>(upstreamUpstreamHostUrl, MainClient);
        string localUpstreamHostString;

        if (!File.Exists(MainConst.UpstreamHostPath))
            File.Create(MainConst.UpstreamHostPath).Dispose();

        localUpstreamHostString = File.ReadAllText(MainConst.UpstreamHostPath);

        if (localUpstreamHostString.Replace("\r", string.Empty) == upstreamUpstreamHostString)
            MessageBox.Show(MainConst._UpstreamHostUtdMsg);
        else
        {
            MessageBoxResult overrideOptionResult = MessageBox.Show(MainConst._OverrideUpstreamHostPrompt, string.Empty, MessageBoxButton.YesNoCancel);
            if (overrideOptionResult == MessageBoxResult.Yes)
            {
                File.WriteAllText(MainConst.UpstreamHostPath, upstreamUpstreamHostString);
                MessageBox.Show(MainConst._UpdateUpstreamHostSuccessMsg);
            }
            else if (overrideOptionResult == MessageBoxResult.No)
                Process.Start(new ProcessStartInfo(upstreamUpstreamHostUrl) { UseShellExecute = true });
        }
    }

    private void ThemesButton_Click(object sender, RoutedEventArgs e) => MainPres!.IsLightTheme = MainPres.IsLightTheme.HasValue ? MainPres.IsLightTheme.Value ? null : true : false;
    private async void NoClickButton_Click(object sender, RoutedEventArgs e)
    {
        if (GameFlashInterval <= 10)
        {
            MessageBox.Show(MainConst._GameReviewEndingMsg);
            return;
        }

        ++GameClickTime;

        switch (GameClickTime)
        {
            case 1:
                MessageBox.Show(MainConst._GameClickOnceMsg);
                return;
            case 2:
                MessageBox.Show(MainConst._GameClickTwiceMsg);
                return;
            case 3:
                MessageBox.Show(MainConst._GameClickThreeMsg);
                return;
        }

        if (!MainPres!.IsFlashing)
        {
            MessageBox.Show(MainConst._GameStartMsg);
            MainPres.IsFlashing = true;

            Random random = new();

            while (GameFlashInterval > 10)
            {
                Left = random.Next(0, (int)(SystemParameters.PrimaryScreenWidth - ActualWidth));
                Top = random.Next(0, (int)(SystemParameters.PrimaryScreenHeight - ActualHeight));

                PaletteHelper paletteHelper = new();
                Theme newTheme = paletteHelper.GetTheme();

                newTheme.SetPrimaryColor(Color.FromRgb((byte)random.Next(256), (byte)random.Next(256), (byte)random.Next(256)));
                newTheme.SetBaseTheme(random.Next(2) == 0 ? BaseTheme.Light : BaseTheme.Dark);
                paletteHelper.SetTheme(newTheme);

                if (GameFlashInterval > 100)
                    GameFlashInterval += random.Next(1, 4);

                await Task.Delay(GameFlashInterval);
            }

            MainPres.IsFlashing = false;
            MessageBox.Show(MainConst._GameEndingMsg);
        }
        else
        {
            switch (GameFlashInterval)
            {
                case > 250:
                    GameFlashInterval -= 150;
                    break;
                case > 100:
                    GameFlashInterval = 100;
                    break;
                case > 10:
                    GameFlashInterval -= 30;
                    break;
            }

            if (GameFlashInterval > 10)
                MessageBox.Show($"{MainConst._GameGradeMsg} {GameFlashInterval}");
        }
    }
    private void AboutButton_Click(object sender, RoutedEventArgs e) => new AboutWin().ShowDialog();

    private void ProxyTimer_Tick(object? sender, EventArgs e)
    {
        MainPres!.IsNginxExist = File.Exists(Path.Combine(AppDomain.CurrentDomain.SetupInformation.ApplicationBase!, Path.GetFileName(MainConst.NginxPath)));
        MainPres.IsNginxRunning = Process.GetProcessesByName(Path.GetFileNameWithoutExtension(MainConst.NginxPath)).Length != 0;
        MainPres.IsMihomoExist = File.Exists(Path.Combine(AppDomain.CurrentDomain.SetupInformation.ApplicationBase!, Path.GetFileName(MainConst.MihomoPath)));
        MainPres.IsMihomoRunning = Process.GetProcessesByName(Path.GetFileNameWithoutExtension(MainConst.MihomoPath)).Length != 0;
    }
    private void CealingHostWatcher_Changed(object sender, FileSystemEventArgs e)
    {
        string hostName = e.Name!.TrimStart("Cealing-Host-".ToCharArray()).TrimEnd(".json".ToCharArray());

        try
        {
            HostRulesDict[hostName] = [];
            string hostRulesFragments = string.Empty;
            string hostResolverRulesFragments = string.Empty;

            using FileStream hostStream = new(e.FullPath, FileMode.OpenOrCreate, FileAccess.Read, FileShare.ReadWrite | FileShare.Delete);
            JsonDocumentOptions hostOptions = new() { AllowTrailingCommas = true, CommentHandling = JsonCommentHandling.Skip };
            JsonElement hostArray = JsonDocument.Parse(hostStream, hostOptions).RootElement;

            foreach (JsonElement hostRule in hostArray.EnumerateArray())
            {
                List<(string hostIncludeDomain, string hostExcludeDomain)> hostDomainPairs = [];
                string hostSni = string.IsNullOrWhiteSpace(hostRule[1].ToString()) ? $"{hostName}{HostRulesDict[hostName].Count}" : hostRule[1].ToString();
                string hostIp = string.IsNullOrWhiteSpace(hostRule[2].ToString()) ? "127.0.0.1" : hostRule[2].ToString();

                foreach (JsonElement hostDomain in hostRule[0].EnumerateArray())
                {
                    if (hostDomain.ToString().StartsWith('^') || hostDomain.ToString().EndsWith('^'))
                        continue;

                    string[] hostDomainPair = hostDomain.ToString().Split('^', 2);

                    hostDomainPairs.Add((hostDomainPair[0], hostDomainPair.Length == 2 ? hostDomainPair[1] : string.Empty));
                }

                HostRulesDict[hostName].Add((hostDomainPairs, hostSni, hostIp));
            }
        }
        catch { HostRulesDict.Remove(hostName); }
        finally
        {
            string cealHostRules = string.Empty;
            string cealHostResolverRules = string.Empty;

            foreach (List<(List<(string hostIncludeDomain, string hostExcludeDomain)> hostDomainPairs, string hostSni, string hostIp)> hostRules in HostRulesDict.Values)
                foreach ((List<(string hostIncludeDomain, string hostExcludeDomain)> hostDomainPairs, string hostSni, string hostIp) in hostRules)
                {
                    foreach ((string hostIncludeDomain, string hostExcludeDomain) in hostDomainPairs)
                        cealHostRules += $"MAP {hostIncludeDomain} {hostSni}," + (!string.IsNullOrWhiteSpace(hostExcludeDomain) ? $"EXCLUDE {hostExcludeDomain}," : string.Empty);

                    cealHostResolverRules += $"MAP {hostSni} {hostIp},";
                }

            CealArgs = @$"/c @start .\""{Path.GetFileName(MainConst.UncealedBrowserPath)}"" --host-rules=""{cealHostRules.TrimEnd(',')}"" --host-resolver-rules=""{cealHostResolverRules.TrimEnd(',')}"" --test-type --ignore-certificate-errors";

            NginxConfWatcher_Changed(null!, null!);
        }
    }
    private void NginxConfWatcher_Changed(object sender, FileSystemEventArgs e)
    {
        if (MainConst.IsAdmin && MainPres!.IsNginxExist)
        {
            if (!File.Exists(MainConst.NginxConfPath))
                File.Create(MainConst.NginxConfPath).Dispose();
            if (!Directory.Exists(MainConst.NginxLogsPath))
                Directory.CreateDirectory(MainConst.NginxLogsPath);
            if (!Directory.Exists(MainConst.NginxTempPath))
                Directory.CreateDirectory(MainConst.NginxTempPath);

            ExtraNginxConfs = File.ReadAllText(MainConst.NginxConfPath);
            int ruleIndex = 1;

            NginxConfs = NginxConfig.Load(ExtraNginxConfs)
                .AddOrUpdate("worker_processes", "auto")
                .AddOrUpdate("events:worker_connections", "65536")
                .AddOrUpdate("http:proxy_set_header", "Host $http_host")
                .AddOrUpdate("http:proxy_ssl_server_name", "on")
                .AddOrUpdate("http:server:return", "https://$host$request_uri");

            foreach (List<(List<(string hostIncludeDomain, string hostExcludeDomain)> hostDomainPairs, string hostSni, string hostIp)> hostRules in HostRulesDict.Values)
                foreach ((List<(string hostIncludeDomain, string hostExcludeDomain)> hostDomainPairs, string hostSni, string hostIp) in hostRules)
                {
                    string serverName = "~";

                    foreach ((string hostIncludeDomain, string hostExcludeDomain) in hostDomainPairs)
                        serverName += "^" + (!string.IsNullOrWhiteSpace(hostExcludeDomain) ? $"(?!{hostExcludeDomain.Replace(".", "\\.").Replace("*", ".*")})" : string.Empty) + hostIncludeDomain.Replace(".", "\\.").Replace("*", ".*") + "$|";

                    NginxConfs = NginxConfs
                        .AddOrUpdate($"http:server[{ruleIndex}]:server_name", serverName.TrimEnd('|'))
                        .AddOrUpdate($"http:server[{ruleIndex}]:listen", "443 ssl")
                        .AddOrUpdate($"http:server[{ruleIndex}]:ssl_certificate", Path.GetFileName(MainConst.NginxCertPath))
                        .AddOrUpdate($"http:server[{ruleIndex}]:ssl_certificate_key", Path.GetFileName(MainConst.NginxKeyPath))
                        .AddOrUpdate($"http:server[{ruleIndex}]:proxy_ssl_name", hostSni)
                        .AddOrUpdate($"http:server[{ruleIndex}]:location", "/", true)
                        .AddOrUpdate($"http:server[{ruleIndex}]:location:proxy_pass", $"https://{hostIp}");

                    ++ruleIndex;
                }
        }
    }
    private void MihomoConfWatcher_Changed(object sender, FileSystemEventArgs e)
    {
        if (MainConst.IsAdmin && MainPres!.IsMihomoExist)
        {
            if (!File.Exists(MainConst.MihomoConfPath))
                File.Create(MainConst.MihomoConfPath).Dispose();

            ExtraMihomoConfs = File.ReadAllText(MainConst.MihomoConfPath);

            Dictionary<string, object> mihomoConfDict = new DeserializerBuilder()
                .WithNamingConvention(HyphenatedNamingConvention.Instance)
                .IgnoreUnmatchedProperties()
                .Build()
                .Deserialize<Dictionary<string, object>>(ExtraMihomoConfs) ?? [];

            mihomoConfDict["mixed-port"] = 7880;
            mihomoConfDict["dns"] = new
            {
                enable = true,
                listen = ":53",
                enhancedMode = "redir-host",
                nameserver = new[] { "https://doh.apad.pro/dns-query", "https://ns.net.kg/dns-query" }
            };
            mihomoConfDict["tun"] = new
            {
                enable = true,
                stack = "system",
                autoRoute = true,
                autoDetectInterface = true,
                dnsHijack = new[] { "any:53", "tcp://any:53" }
            };

            MihomoConfs = new SerializerBuilder().WithNamingConvention(HyphenatedNamingConvention.Instance).Build().Serialize(mihomoConfDict);
        }
    }
    private void MainWin_KeyDown(object sender, KeyEventArgs e)
    {
        if (e.KeyboardDevice.Modifiers == ModifierKeys.Control && e.Key == Key.W)
            Application.Current.Shutdown();
    }
}