using UnityEngine;
using System.Collections;
using System.Threading;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using System.Xml;
using System.Globalization;







public class OnlineMapManager : MonoBehaviour
{

   
    private OnlineMapsTileSetControl control;

     private  OnlineMapsWWW elevationRequest = null;

	private OnlineMaps map;

   
    IEnumerator Start ()
    {

       
        // Get Tileset control.
        control = OnlineMapsControlBase.instance as OnlineMapsTileSetControl;
		map = OnlineMaps.instance;

        if (control == null)
        {
            Debug.LogError("You must use the Tileset control.");
            yield return null;
        }


	
        // Intercept elevation request
       control.OnGetElevation += OnGetElevation;


    }

  
    private void OnGetElevation(Vector2 topLeftCoords, Vector2 bottomRightCoords)
    {
      
		//Debug.Log ("topLeftCoords.x = " + topLeftCoords.x + "\ttopLeftCoords.y = " + topLeftCoords.y);
		//Debug.Log ("bottomRightCoords.x = " + bottomRightCoords.x + "\tbottomRightCoords.y = " + bottomRightCoords.y + "\n");

        double north = 0;
        double south = 0;
        double west = 0;
        double east = 0;

        north = topLeftCoords.y;
        south = bottomRightCoords.y;
        west = topLeftCoords.x;
        east = bottomRightCoords.x;


        // Elevation map must be 32x32
        short[,] elevation = new short[32, 32];



        string url = string.Format(CultureInfo.InvariantCulture,
			"http://gis.eltel.co.il:8080/geoserver/WorldDEM/wms?service=WMS&version=1.1.0&request=GetMap&layers=WorldDEM:Wold_DEM&styles=&bbox={0},{1},{2},{3}&width=768&height=384&srs=EPSG:4326&format=application/openlayers",
			west, south, east, north
                );

		
		//Debug.Log ("west = " + west + "\tsouth = " + south + "\teast = " + east + "\tnorth = " + north);



        elevationRequest = OnlineMapsUtils.GetWWW(url);



   		lab1:;
        if(elevationRequest.isDone==false)
        {
			
            goto lab1;
        }

        if (elevationRequest.isDone == true)
        {

            byte[] bytes = elevationRequest.bytes;
		
            
            int n = 0;
            using (MemoryStream ms = new MemoryStream(bytes))
            {
                BinaryReader reader = new BinaryReader(ms);

                for (int y = 0; y < 32; y++)
                {
                    for (int x = 0; x < 32; x++)
                    {
						elevation[x, y] =(short)(reader.ReadInt32());
					
						
						//Debug.Log ("y = " + y + "\tx = " + x + "\t elevation[x, y] = " +  elevation[x, y]);
                        n++;
                    }
                }
            }
        }


           
            // Set elevation map
            control.SetElevationData(elevation);

    }



}