using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Valve.VR;
using VDash.Overlay;
using VDash.Overlay.Config;
using VDash.UI;
using VDash.Utilities;

namespace VDash
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public static OverlayManager OverlayManager = new OverlayManager();
        public static ProfileManager ProfileManager = new ProfileManager();

        public MainWindow()
        {
            Logger.Setup();
            this.GetLogger().Info("VDash is starting up...");
            InitializeComponent();

            //Connect to VR runtime...
            EVRInitError initError = EVRInitError.None;

            var ret = OpenVR.Init(ref initError, EVRApplicationType.VRApplication_Overlay);

#if !DEBUG
            if (initError != EVRInitError.None)
            {
                throw new Exception($"Error connecting to VR: {initError.ToString()}");
            }
#endif

            lvOverlays.ItemsSource = OverlayManager.Overlays;


            KeyDown += (s, e) =>
            {
                if(e.Key == Key.F5)
                {
                    ProfileManager.SaveProfile();
                }
                if(e.Key == Key.F6 || e.Key == Key.P)
                {
                    var profile = ProfileManager.LoadProfile();
                    LoadProfile(profile);
                }
            };

#region Debug


            //StartOverlayWindow("Discord");

            //StartOverlayWindow("Microsoft Visual Studio");

            //StartOverlayWindow("Notepad++");

            //StartOverlayWindow("Putty");

            //StartOverlayWindow("Paint");

            //Overlay.WindowOverlay obsoverlay = new Overlay.WindowOverlay("obs", "obs", new WindowSelectors.FromProcessName("obs64"), false);
            //obsoverlay.Create();
            //obsoverlay.DestroyOnNoWindowFound = true;
            //var bringWindow = new Overlay.Actions.BringWindowToFrontAction(true);
            //obsoverlay.OverlayShownActions.Add(bringWindow);

            //var displays = User32.GetDisplays();
            //MonitorOverlay mo0 = new MonitorOverlay("left", "Left Monitor", displays[0]);
            //mo0.Create();
            //MonitorOverlay mo1 = new MonitorOverlay("center", "Center Monitor", displays[1]);
            //mo1.Create();
            //MonitorOverlay mo2= new MonitorOverlay("right", "Right Monitor", displays[2]);
            //mo2.Create();
#endregion
        }

        private void LoadProfile(Profile profile)
        {
            //Dispose of all overlays and clear list.
            foreach (var overlay in OverlayManager.Overlays)
            {
                overlay.Overlay.Dispose();
            }
            OverlayManager.Overlays.Clear();

            var configs = profile.OverlayConfigs;

            foreach (var config in configs)
            {
                //Get type of overlay based on config type
                var attrs = OverlayInfo.GetOverlayInfos();
                var overlayInfo = attrs.Single(x => x.Info.ConfigType == config.GetType());
                Type overlayType = overlayInfo.OverlayType;
                //Create overlay
                IOverlay overlay = (IOverlay)Activator.CreateInstance(overlayType, new object[] { config });
                overlay.Create();

                UI.IOverlayEditor editor = (UI.IOverlayEditor)Activator.CreateInstance(overlayInfo.Info.EditorType, new object[] { overlay.OverlayConfig });
                OverlayEditorInfo overlayEditor = new OverlayEditorInfo(new UI.OverlayEditor(editor), overlay);
                OverlayManager.Overlays.Add(overlayEditor);
            }
        }

        private void btnAdd_Click(object sender, RoutedEventArgs e)
        {
            Window w = new Window();
            var uc = new UI.CreateNewOverlay();
            uc.Created += (snd, overlay) => {
                w.Close();
                var attrs = OverlayInfo.GetOverlayInfos();
                var overlayInfo = attrs.Single(x => x.OverlayType == overlay.GetType());
                UI.IOverlayEditor editor = (UI.IOverlayEditor)Activator.CreateInstance(overlayInfo.Info.EditorType, new object[] { overlay.OverlayConfig });
                OverlayEditorInfo overlayEditor = new OverlayEditorInfo(new UI.OverlayEditor(editor), overlay);
                OverlayManager.Overlays.Add(overlayEditor);
            };
            w.Content = uc;
            w.Width = 500;
            w.Height = 400;
            w.SizeToContent = System.Windows.SizeToContent.Height;
            w.Show();
        }

        private void btnRemove_Click(object sender, RoutedEventArgs e)
        {
            if(lvOverlays.SelectedItem == null) { return; }
            OverlayEditorInfo overlayEditor = (OverlayEditorInfo)lvOverlays.SelectedItem;
            overlayEditor.Overlay.Dispose();
            OverlayManager.Overlays.Remove(overlayEditor);
            if (bdrContent.Child == overlayEditor.Editor)
            {
                bdrContent.Child = null;
            }
        }

        private void lvOverlays_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (lvOverlays.SelectedItem == null) { return; }
            OverlayEditorInfo overlay = (OverlayEditorInfo)lvOverlays.SelectedItem;

            bdrContent.Child = (UserControl)overlay.Editor;
        }

        private void btnLoad_Click(object sender, RoutedEventArgs e)
        {
            var profile = ProfileManager.LoadProfile();
            LoadProfile(profile);
        }
    }

    public class EditorMap
    {
        public EditorMap(Type overlayType, Type editorType)
        {
            OverlayType = overlayType;
            EditorType = editorType;
        }

        public Type OverlayType { get; private set; }
        public Type EditorType { get; private set; }
    }
}