using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace lauamang
{
    public partial class Kabelaud : UserControl
    {
        int a = 30; //Ruudu külje pikkus
        int ridu = 8;
        int veerge = 8;
        Kabenupp liigutatav = null;
        Kabenupp iseliikuv = null;
        Storyboard tahvel = new Storyboard();
        DoubleAnimation xAnim = new DoubleAnimation();
        DoubleAnimation yAnim = new DoubleAnimation();

        public Kabelaud()
        {
            InitializeComponent();
            looRuudud();
            looNupud();
            this.MouseMove += new MouseEventHandler(Kabelaud_MouseMove);
            tahvel.Children.Add(xAnim);
            tahvel.Children.Add(yAnim);
            Storyboard.SetTargetProperty(xAnim,
                    new PropertyPath("(Canvas.Left)"));
            Storyboard.SetTargetProperty(yAnim,
                    new PropertyPath("(Canvas.Top)"));
            tahvel.Completed += new EventHandler(tahvel_Completed);
        }

        void liigutaKomponent(UIElement kujund, double lopux, double lopuy) {
            //tahvel.Pause();           
            Storyboard.SetTarget(xAnim, kujund);
            Storyboard.SetTarget(yAnim, kujund);
            xAnim.To = lopux;
            yAnim.To = lopuy;
            iseliikuv = kujund as Kabenupp;
            tahvel.Begin();
        }

        void tahvel_Completed(object sender, EventArgs e)
        {
            tahvel.Stop();
            Canvas.SetLeft(iseliikuv, iseliikuv.Veerg * a + 5);
            Canvas.SetTop(iseliikuv, iseliikuv.Rida* a + 5);
            //MessageBox.Show("kohal");
        }

        void Kabelaud_MouseMove(object sender, MouseEventArgs e)
        {
            if (liigutatav != null) {
                Canvas.SetLeft(liigutatav, 
                     e.GetPosition(null).X-liigutatav.Width/2);
                Canvas.SetTop(liigutatav, 
                     e.GetPosition(null).Y-liigutatav.Height/2);
            }
        }
        void looRuudud() {
            for (int rida = 0; rida < ridu; rida++) {
                for (int veerg = 0; veerg < veerge; veerg++) {
                    Rectangle ruut = new Rectangle();
                    if ((rida + veerg) % 2 == 0)
                    {
                        ruut.Fill = new SolidColorBrush(Colors.Black);
                    }
                    else {
                        ruut.Fill = new SolidColorBrush(Colors.White);                    
                    }
                    ruut.Width = a;
                    ruut.Height = a;
                    Canvas.SetLeft(ruut, veerg * a);
                    Canvas.SetTop(ruut, rida * a);
                    juur.Children.Add(ruut);
                }
            }
            juur.UpdateLayout();
        }
        void looNupud() {
            for (int rida = 0; rida < ridu; rida++)
            {
                for (int veerg = 0; veerg < veerge; veerg++)
                {
                    if ((rida + veerg) % 2 == 0)
                    {
                        Kabenupp nupp = null;
                        if (rida < 3) {
                            nupp = new Kabenupp(Colors.Gray);
                        }
                        if (rida > 4) {
                            nupp = new Kabenupp(Colors.White);
                        }
                        if(nupp!=null){
                            Canvas.SetLeft(nupp, veerg * a+5);
                            Canvas.SetTop(nupp, rida * a+5);
                            nupp.Rida = rida;
                            nupp.Veerg = veerg;
                            juur.Children.Add(nupp);
                            nupp.MouseLeftButtonDown += 
                                new MouseButtonEventHandler(
                                    nupp_MouseLeftButtonDown);
                            nupp.MouseLeftButtonUp += new MouseButtonEventHandler(nupp_MouseLeftButtonUp);
                        }
                    }
                }
            }
            juur.UpdateLayout();
        
        }

        void nupp_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            if(liigutatav!=null){
                int veerg = (int)(Canvas.GetLeft(liigutatav) / a);
                int rida = (int)(Canvas.GetTop(liigutatav) / a);
                if (rida < ridu)
                {
                    Canvas.SetLeft(liigutatav, a * veerg + 5);
                    Canvas.SetTop(liigutatav, a * rida + 5);
                    liigutatav.Rida = rida;
                    liigutatav.Veerg = veerg;
                }
                else {
                    liigutaKomponent(liigutatav, 
                         liigutatav.Veerg * a + 5, liigutatav.Rida*a+5);
                }
                liigutatav = null;
            }
        }

        void nupp_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            liigutatav = sender as Kabenupp;
        }
    }
}