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 List<EditorMap> EditorMapping = new List<EditorMap>()
        {
            new EditorMap(typeof(MonitorOverlay), typeof(UI.MonitorOverlayEditor)),
            new EditorMap(typeof(WindowOverlay), typeof(UI.WindowOverlayEditor))
        };

        List<OverlayEditor> overlayEditors = new List<OverlayEditor>();
        public MainWindow()
        {
            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;

#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 btnAdd_Click(object sender, RoutedEventArgs e)
        {
            Window w = new Window();
            var uc = new UI.CreateNewOverlay();
            uc.Created += (snd, overlay) => {
                w.Close();
                UI.IOverlayEditor editor = (UI.IOverlayEditor)Activator.CreateInstance(EditorMapping.Single(x => x.OverlayType == overlay.GetType()).EditorType, new object[] { overlay.OverlayConfig });
                OverlayEditor overlayEditor = new OverlayEditor(new UI.OverlayEditor(editor), overlay);
                overlayEditors.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; }
            IOverlay overlay = (IOverlay)lvOverlays.SelectedItem;
            overlay.Dispose();
            OverlayManager.Overlays.Remove(overlay);
            overlayEditors.Remove(overlayEditors.Single(x => x.Overlay == overlay));
        }

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

            bdrContent.Child = (UserControl)overlayEditors.Single(x => x.Overlay == overlay).Editor;
        }
    }

    public class OverlayEditor
    {
        public OverlayEditor(IOverlayEditor editor, IOverlay overlay)
        {
            Editor = editor;
            Overlay = overlay;
        }

        public UI.IOverlayEditor Editor { get; private set; }
        public IOverlay Overlay { get; private set; }
    }

    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; }
    }
}