using System;
using System.Globalization;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media.Imaging;
using ThinkGeo.MapSuite.SilverlightCore;
using ThinkGeo.MapSuite.SilverlightEdition;
using System.Collections.ObjectModel;
using System.Collections.Generic;

namespace CSharp_Silverlight_HowDoISamples.Samples
{
    public partial class RoutingDirections : UserControl
    {
        private SimpleMarkerOverlay markerOverlay;
        private InMemoryFeatureLayer routeLayer;

        public RoutingDirections()
        {
            InitializeComponent();
            this.Loaded += new RoutedEventHandler(RoutingDirections_Loaded);
        }

        void RoutingDirections_Loaded(object sender, RoutedEventArgs e)
        {
            Map1.MapUnit = GeographyUnit.DecimalDegree;

            WorldMapKitWmsSilverlightOverlay baseOverlay = new WorldMapKitWmsSilverlightOverlay();
            Map1.Overlays.Add(baseOverlay);

            markerOverlay = new SimpleMarkerOverlay();
            Map1.Overlays.Add("SimpleMarkerOverlay", markerOverlay);
            // Add the start and end flag
            GetStartPointByFeatureId(startFeautreId.Text);

            routeLayer = new InMemoryFeatureLayer();
            routeLayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle = new LineStyle(new GeoPen(GeoColor.FromArgb(100, GeoColor.StandardColors.Purple), 5));
            routeLayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle.OuterPen.LineJoin = DrawingLineJoin.Round;
            routeLayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle.OuterPen.StartCap = GeoDashCap.Round;
            routeLayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle.OuterPen.EndCap = GeoDashCap.Round;
            routeLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            LayerOverlay routeOverlay = new LayerOverlay();
            routeOverlay.Layers.Add("routeLayer", routeLayer);
            Map1.Overlays.Add("RouteOverlay", routeOverlay);

            Map1.CurrentExtent = new RectangleShape(-97.736959142883279, 30.310479724914515, -97.721080465515115, 30.299150074035609);
        }

        private void btnGetRoute_Click(object sender, RoutedEventArgs e)
        {
            GeoDataService.GeoDataGettingClient client = new GeoDataService.GeoDataGettingClient();
            client.GetRouteResultCompleted += new EventHandler(client_GetRouteResultCompleted);
            client.GetRouteResultAsync(startFeautreId.Text, endFeautreId.Text, String.Empty);
        }

        void client_GetRouteResultCompleted(object sender, CSharp_Silverlight_HowDoISamples.GeoDataService.GetRouteResultCompletedEventArgs e)
        {
            if (e.Error == null)
            {
                Dictionary> result = e.Result;
                LineShape lineShape = BaseShape.CreateShapeFromWellKnownData(result["wkt"][0]) as LineShape;
                routeLayer.InternalFeatures.Clear();
                routeLayer.InternalFeatures.Add(new Feature(lineShape));
                Map1.Refresh();

                ObservableCollection results = new ObservableCollection();
                ObservableCollection roadNames = result["roadName"];
                ObservableCollection directions = result["direction"];
                for (int i = 0; i < roadNames.Count; i++)
                {
                    RoutingResultWithDirection DirectionResult = new RoutingResultWithDirection();
                    DirectionResult.Directions = directions[i];
                    LineShape line = ((MultilineShape)BaseShape.CreateShapeFromWellKnownData(result["roadWkts"][i])).Lines[0];
                    DirectionResult.Distance = line.GetLength(GeographyUnit.DecimalDegree, DistanceUnit.Meter).ToString("F2", CultureInfo.InvariantCulture);
                    DirectionResult.RoadName = result["roadName"][i];
                    results.Add(DirectionResult);
                }
                dgResult.DataContext = results;
            }
        }

        internal void GetStartPointByFeatureId(string featureId)
        {
            GeoDataService.GeoDataGettingClient client = new CSharp_Silverlight_HowDoISamples.GeoDataService.GeoDataGettingClient();
            client.GetPointShapeByIdCompleted += new EventHandler(client_GetStartPointShapeByIdCompleted);
            client.GetPointShapeByIdAsync(featureId);
        }

        void client_GetStartPointShapeByIdCompleted(object sender, CSharp_Silverlight_HowDoISamples.GeoDataService.GetPointShapeByIdCompletedEventArgs e)
        {
            if (e.Error == null)
            {
                string[] positions = e.Result.Split(',');
                PointShape pointShape = new PointShape(double.Parse(positions[0], CultureInfo.InvariantCulture), double.Parse(positions[1], CultureInfo.InvariantCulture));

                RenderMarker(pointShape, "start");
                GetEndPointByFeatureId(endFeautreId.Text);
            }
        }

        internal void GetEndPointByFeatureId(string featureId)
        {
            GeoDataService.GeoDataGettingClient client = new CSharp_Silverlight_HowDoISamples.GeoDataService.GeoDataGettingClient();
            client.GetPointShapeByIdCompleted += new EventHandler(client_GetEndPointShapeByIdCompleted);
            client.GetPointShapeByIdAsync(featureId);
        }

        void client_GetEndPointShapeByIdCompleted(object sender, CSharp_Silverlight_HowDoISamples.GeoDataService.GetPointShapeByIdCompletedEventArgs e)
        {
            if (e.Error == null)
            {
                string[] positions = e.Result.Split(',');
                PointShape pointShape = new PointShape(double.Parse(positions[0], CultureInfo.InvariantCulture), double.Parse(positions[1], CultureInfo.InvariantCulture));

                RenderMarker(pointShape, "end");
            }
        }

        private void RenderMarker(PointShape pointShape, string renderTag)
        {
            Marker marker = new Marker(pointShape);
            if (renderTag == "start")
            {
                marker.ImageSource = new BitmapImage(new Uri("/theme/StartpointMarker.png", UriKind.RelativeOrAbsolute));
            }
            else if (renderTag == "end")
            {
                marker.ImageSource = new BitmapImage(new Uri("/theme/EndpointMarker.png", UriKind.RelativeOrAbsolute));
            }
            marker.ImageOffsetY = -10;
            markerOverlay.Markers.Add(marker);
            Map1.Refresh();
        }
    }

    public class RoutingResultWithDirection
    {
        public string RoadName { get; set; }
        public string Distance { get; set; }
        public string Directions { get; set; }
    }
}