using System;
using System.Linq;
using System.Windows;
using System.Threading;
using System.Diagnostics;
using System.Windows.Input;
using System.Windows.Interop;
using System.Runtime.InteropServices;

using CefSharp;

namespace Overlay
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        [DllImport("user32.dll", SetLastError = true)]
        private static extern bool GetWindowRect(IntPtr hWnd, out RECT lpRect);

        [DllImport("user32.dll")]
        private static extern IntPtr GetForegroundWindow();

        private Boolean ShowOverlay;
        private Process P;

        public MainWindow()
        {
            InitializeComponent();
        }

        private void Test_HotKeyPressed(HotKey hotKey)
        {
            if (ShowOverlay) { ShowOverlay = false; }
            else { ShowOverlay = true; }
        }

        private void Window_Initialized(object sender, EventArgs e)
        {
            Browser.BrowserSettings.ApplicationCache = CefSharp.CefState.Enabled;

            new HotKey(Key.Insert, KeyModifier.None, Test_HotKeyPressed);

            P = Process.GetProcesses().Where(x => x.MainWindowTitle.ToLower().Contains("shineonline")).FirstOrDefault();

            if (true == true)
            {
                Thread NewThread = new Thread(delegate ()
                {
                    while (true)
                    {
                        if (ShowOverlay && (GetForegroundWindow() == P.MainWindowHandle || GetForegroundWindow() == Process.GetCurrentProcess().MainWindowHandle))
                        {
                            RECT pRect;
                            Size cSize = new Size();

                            GetWindowRect(P.MainWindowHandle, out pRect);

                            cSize.Width = pRect.Right - pRect.Left;
                            cSize.Height = pRect.Bottom - pRect.Top;

                            Dispatcher.Invoke(new Action(() =>
                            {
                                this.Width = cSize.Width;
                                this.Height = cSize.Height;
                                this.Top = pRect.Top;
                                this.Left = pRect.Left;

                                Show();
                            }));
                        }
                        else
                        {
                            Dispatcher.Invoke(new Action(() =>
                            {
                                Hide();
                            }));
                        }

                        Thread.Sleep(500);
                    }
                });

                NewThread.Start();
            }

            if (true == true)
            {
                Thread NewThread = new Thread(delegate ()
                {
                    P.WaitForExit();
                    Dispatcher.Invoke(new Action(() =>
                    {
                        Cef.Shutdown();
                    }));
                    Process.GetCurrentProcess().Kill();
                });

                NewThread.Start();
            }
        }
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct RECT
    {
        public int Left;
        public int Top;
        public int Right;
        public int Bottom;
    }
}