using Hardcodet.Wpf.TaskbarNotification;
using Ink_Canvas.Helpers;
using iNKORE.UI.WPF.Modern.Controls;
using System;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Windows;
using Newtonsoft.Json.Linq;
using System.Windows.Shell;
using Ookii.Dialogs.Wpf;
using System.Diagnostics;
using Ink_Canvas.Windows;
using Lierda.WPFHelper;
using System.Runtime.InteropServices;
using System.Security.Principal;
using Windows.Data.Xml.Dom;
using Windows.UI.Notifications;
using Ink_Canvas.Properties;
using Ink_Canvas.Resources.ICCConfiguration;

namespace Ink_Canvas {

    public partial class App : Application {

        [DllImport("UIAccessDLL_x86.dll", EntryPoint = "PrepareUIAccess", CallingConvention = CallingConvention.Cdecl)]
        public static extern Int32 PrepareUIAccessX86();

        [DllImport("UIAccessDLL_x64.dll", EntryPoint = "PrepareUIAccess", CallingConvention = CallingConvention.Cdecl)]
        public static extern Int32 PrepareUIAccessX64();

        System.Threading.Mutex mutex;

        public static string[] StartArgs = null;
        public static string RootPath = Environment.GetEnvironmentVariable("APPDATA") + "\\Ink Canvas\\";
        public static ICCConfiguration SettingsV2 = new ICCConfiguration();

        public App() {
            this.Startup += new StartupEventHandler(App_Startup);
            this.DispatcherUnhandledException += App_DispatcherUnhandledException;
        }

        private void App_DispatcherUnhandledException(object sender, System.Windows.Threading.DispatcherUnhandledExceptionEventArgs e)
        {
            Ink_Canvas.MainWindow.ShowNewMessage("抱歉，出现未预期的异常，可能导致 InkCanvasForClass 运行不稳定。\n建议保存墨迹后重启应用。");
            LogHelper.NewLog(e.Exception.ToString());
            e.Handled = true;
        }

        private TaskbarIcon _taskbar;
        private MainWindow mainWin = null;

        void App_Startup(object sender, StartupEventArgs e) {

            var identity = WindowsIdentity.GetCurrent();
            var principal = new WindowsPrincipal(identity);
            if (Environment.Is64BitProcess && principal.IsInRole(WindowsBuiltInRole.Administrator)) {
                //Trace.WriteLine(PrepareUIAccessX64());
            } else if (principal.IsInRole(WindowsBuiltInRole.Administrator)) {
                //PrepareUIAccessX86();
            }

            RootPath = AppDomain.CurrentDomain.SetupInformation.ApplicationBase;

            SettingsV2 = ConfigurationHelper.ReadConfiguration();

            LogHelper.NewLog(string.Format("Ink Canvas Starting (Version: {0})", Assembly.GetExecutingAssembly().GetName().Version.ToString()));

            bool ret;
            mutex = new System.Threading.Mutex(true, "InkCanvasForClass", out ret);

            if (!ret && !(e.Args.Contains("-m")||e.Args.Contains("--multiple"))) //-m multiple
            {
                LogHelper.NewLog("Detected existing instance");

                if (TaskDialog.OSSupportsTaskDialogs) {
                    using (TaskDialog dialog = new TaskDialog())
                    {
                        dialog.WindowTitle = "InkCanvasForClass";
                        dialog.MainIcon = TaskDialogIcon.Warning;
                        dialog.MainInstruction = "已有一个实例正在运行";
                        dialog.Content = "这意味着 InkCanvasForClass 正在运行，而您又运行了主程序一遍。如果频繁出现该弹窗且ICC无法正常启动时，请尝试 “以多开模式启动”。";
                        TaskDialogButton customButton = new TaskDialogButton("以多开模式启动");
                        customButton.Default = false;
                        dialog.ButtonClicked += (object s, TaskDialogItemClickedEventArgs _e) => {
                            if (_e.Item == customButton)
                            {
                                Process.Start(System.Windows.Forms.Application.ExecutablePath, "-m");
                            }
                        };
                        TaskDialogButton okButton = new TaskDialogButton(ButtonType.Ok);
                        okButton.Default = true;
                        dialog.Buttons.Add(customButton);
                        dialog.Buttons.Add(okButton);
                        TaskDialogButton button = dialog.ShowDialog();
                    }
                }

                LogHelper.NewLog("Ink Canvas automatically closed");
                Environment.Exit(0);
            }


            var isUsingWindowChrome = false;
            try {
                if (File.Exists(App.RootPath + "Settings.json")) {
                    try {
                        string text = File.ReadAllText(App.RootPath + "Settings.json");
                        var obj = JObject.Parse(text);
                        isUsingWindowChrome = (bool)obj.SelectToken("startup.enableWindowChromeRendering");
                    }
                    catch { }
                }
            } catch (Exception ex) {
                LogHelper.WriteLogToFile(ex.ToString(), LogHelper.LogType.Error);
            }

            mainWin = new MainWindow();
            mainWin.Show();

            //var setW = new SettingsWindow();
            //setW.Show();

            _taskbar = (TaskbarIcon)FindResource("TaskbarTrayIcon");

            LierdaCracker cracker = new LierdaCracker();
            cracker.Cracker();

            StartArgs = e.Args;
        }

        private void ScrollViewer_PreviewMouseWheel(object sender, System.Windows.Input.MouseWheelEventArgs e)
        {
            try
            {
                if (System.Windows.Forms.SystemInformation.MouseWheelScrollLines == -1)
                    e.Handled = false;
                else
                    try
                    {
                        ScrollViewerEx SenderScrollViewer = (ScrollViewerEx)sender;
                        SenderScrollViewer.ScrollToVerticalOffset(SenderScrollViewer.VerticalOffset - e.Delta * 10 * System.Windows.Forms.SystemInformation.MouseWheelScrollLines / (double)120);
                        e.Handled = true;
                    }
                    catch {  }
            }
            catch {  }
        }
    }
}