using System;
using System.Windows;
using System.Windows.Media.Imaging;
using ESRI.ArcGIS.Client;
using ESRI.ArcGIS.Client.Symbols;
using ESRI.ArcGIS.Client.Toolkit.DataSources;
using OpenEarth.DataViewer.BwnFunctionsReference;
using OpenEarth.DataViewer.Helpers;

namespace OpenEarth.DataViewer.Windows
{
    /// <summary>
    /// Interaction logic for Map.xaml
    /// </summary>
    public partial class Map
    {
        private LayerWrapper wrapper;
        private Draw drawObject;
        private Symbol activeSymbol;
        private Graphic graphic;

        public Map()
        {
            InitializeComponent();
            InitializeDrawing();
        }

        private void InitializeDrawing()
        {
            drawObject = new Draw(MainMap)
                             {
                                 LineSymbol = LayoutRoot.Resources["DrawLineSymbol"] as LineSymbol,
                                 FillSymbol = LayoutRoot.Resources["DrawFillSymbol"] as FillSymbol
                             };

            drawObject.DrawComplete += DrawObjectDrawComplete;
        }

        public void LoadLayer(LayerWrapper layerWrapper)
        {
            if (wrapper != null)
            {
                MainMap.Layers.Remove(layerWrapper.Layer);
            }
            wrapper = layerWrapper;
            MainMap.Layers.Add(layerWrapper.Layer);
        }

        private void DrawingToolbarItemClicked(object sender, ESRI.ArcGIS.Client.Toolkit.SelectedToolbarItemArgs e)
        {
            switch (e.Index)
            {
                case 0: // Point
                    drawObject.DrawMode = DrawMode.Point;
                    activeSymbol = LayoutRoot.Resources["DefaultMarkerSymbol"] as Symbol;
                    break;
                case 1: // Polyline
                    drawObject.DrawMode = DrawMode.Polyline;
                    activeSymbol = LayoutRoot.Resources["DefaultLineSymbol"] as Symbol;
                    break;
                case 2: // Polygon
                    drawObject.DrawMode = DrawMode.Polygon;
                    activeSymbol = LayoutRoot.Resources["DefaultFillSymbol"] as Symbol;
                    break;
                case 3: // Rectangle
                    drawObject.DrawMode = DrawMode.Rectangle;
                    activeSymbol = LayoutRoot.Resources["DefaultFillSymbol"] as Symbol;
                    break;
                case 4: // Freehand
                    drawObject.DrawMode = DrawMode.Freehand;
                    activeSymbol = LayoutRoot.Resources["DefaultLineSymbol"] as Symbol;
                    break;
                case 5: // Arrow
                    drawObject.DrawMode = DrawMode.Arrow;
                    activeSymbol = LayoutRoot.Resources["DefaultFillSymbol"] as Symbol;
                    break;
                case 6: // Triangle
                    drawObject.DrawMode = DrawMode.Triangle;
                    activeSymbol = LayoutRoot.Resources["DefaultFillSymbol"] as Symbol;
                    break;
                case 7: // Circle
                    drawObject.DrawMode = DrawMode.Circle;
                    activeSymbol = LayoutRoot.Resources["DefaultFillSymbol"] as Symbol;
                    break;
                case 8: // Ellipse
                    drawObject.DrawMode = DrawMode.Ellipse;
                    activeSymbol = LayoutRoot.Resources["DefaultFillSymbol"] as Symbol;
                    break;
                default: // Clear Graphics
                    drawObject.DrawMode = DrawMode.None;
                    GraphicsLayer graphicsLayer = MainMap.Layers["DrawingLayer"] as GraphicsLayer;
                    if (graphicsLayer != null) graphicsLayer.ClearGraphics();
                    break;
            }
            drawObject.IsEnabled = (drawObject.DrawMode != DrawMode.None);
        }

        private void DrawingToolbarIndexChanged(object sender, ESRI.ArcGIS.Client.Toolkit.SelectedToolbarItemArgs e)
        {
            StatusTextBlock.Text = e.Item.Text;
        }


        private void DrawObjectDrawComplete(object sender, DrawEventArgs args)
        {
            GraphicsLayer graphicsLayer = MainMap.Layers["DrawingLayer"] as GraphicsLayer;
            if (graphicsLayer != null)
            {
                // comment the following line to allow multiple polygons
                graphic = null;
                graphicsLayer.Graphics.Clear();
                graphic = new Graphic
                              {
                                  Geometry = args.Geometry,
                                  Symbol = activeSymbol,
                              };
                graphicsLayer.Graphics.Add(graphic);
            }
        }

        private void ButtonInterpolateClick(object sender, RoutedEventArgs e)
        {
            if (graphic != null)
            {
                PrepareShowImage();
                try
                {
                    using (BwnFunctionsWrapperSoapClient client = new BwnFunctionsWrapperSoapClient())
                    {
                        if (wrapper != null && !string.IsNullOrEmpty(wrapper.Source) && !string.IsNullOrEmpty(wrapper.Variable))
                        {
                            string result = client.InterpolateToLine(
                                wrapper.Source,
                                wrapper.Variable,
                                graphic.Geometry.Extent.GetCenter().Y,
                                graphic.Geometry.Extent.GetCenter().X,
                                graphic.Geometry.Extent.YMax,
                                graphic.Geometry.Extent.XMax);

                            ShowImage(new Uri("http://viewer.openearth.nl/bwnmatlab/" + result));
                        }
                    }

                }
                catch (Exception ex)
                {
                    Logger.Log("OpenEarth.Dataviewer", ex);
#if DEBUG
                    throw;
#endif
                }
            }
        }

        private void ButtonActionResultCloseClick(object sender, RoutedEventArgs e)
        {
            HideImage();
        }

        private void PrepareShowImage()
        {
            imageActionResultOverlay.Visibility = Visibility.Visible;
            ActionResult.Visibility = Visibility.Visible;
        }

        private void ShowImage(Uri uri)
        {
            imageActionResultOverlay.Visibility = Visibility.Hidden;
            imageActionResult.Visibility = Visibility.Visible;
            imageActionResult.Source = new BitmapImage(uri);
        }

        private void HideImage()
        {
            ActionResult.Visibility = Visibility.Hidden;
            imageActionResult.Visibility = Visibility.Hidden;
            imageActionResult.Source = null;
        }
    }
}