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.Interop;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Tango.SimulateTouch.UI.Native;
using System.Security.Cryptography;
using System.Threading;

namespace Tango.SimulateTouch.UI
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        private Point downPosition;

        public MainWindow()
        {
            InitializeComponent();

            TouchController.Init();

            rect.TouchDown += Rect_TouchDown;
            rect.TouchUp += Rect_TouchUp;
            rect.TouchMove += Rect_TouchMove;
        }

        private void Rect_TouchDown(object sender, TouchEventArgs e)
        {
            downPosition = e.GetTouchPoint(rect).Position;
            rect.Fill = Brushes.Blue;
        }

        private void Rect_TouchUp(object sender, TouchEventArgs e)
        {
            rect.Fill = Brushes.Red;
        }

        private void Rect_TouchMove(object sender, TouchEventArgs e)
        {
            var position = e.GetTouchPoint(rect).Position;

            Canvas.SetLeft(rect, (Canvas.GetLeft(rect) + position.X) - downPosition.X);
            Canvas.SetTop(rect, (Canvas.GetTop(rect) + position.Y) - downPosition.Y);
        }

        private void BtnStart_Click(object sender, RoutedEventArgs e)
        {
            Point rectPosition = rect.PointToScreen(new Point(0, 0));
            Size rectSize = new Size(rect.ActualWidth, rect.ActualHeight);

            Point lastDelta = new Point(0, 0);
            bool completed = false;

            Thread t = new Thread(() =>
            {
                TouchController.TouchDown((int)(rectPosition.X + rectSize.Width / 2), (int)(rectPosition.Y + rectSize.Height / 2)); //Touch the middle of the red rectangle.

                Task.Factory.StartNew(() =>  //This is necessary to keep the touch session alive.
                {
                    while (!completed)
                    {
                        TouchController.TouchMove((int)lastDelta.X, (int)lastDelta.Y);
                        Thread.Sleep(100);
                    }
                });

                Thread.Sleep(1000);

                for (int i = 0; i < 51; i++) //Animate movement.
                {
                    TouchController.TouchMove(i, i);
                    lastDelta = new Point(i, i);
                    Thread.Sleep(300);
                }

                completed = true;

                TouchController.TouchUp(); //Complete the touch.

            });
            t.IsBackground = true;
            t.Start();
        }
    }
}