namespace GMap.NET.MapProviders
{
   using System;

   /// <summary>
   /// NearHybridMap provider - http://www.nearmap.com/
   /// </summary>
   public class NearHybridMapProvider : NearMapProviderBase
   {
      public static readonly NearHybridMapProvider Instance;

      NearHybridMapProvider()
      {
      }

      static NearHybridMapProvider()
      {
         Instance = new NearHybridMapProvider();
      }

      #region GMapProvider Members

      readonly Guid id = new Guid("4BF8819A-635D-4A94-8DC7-94C0E0F04BFD");
      public override Guid Id
      {
         get
         {
            return id;
         }
      }

      readonly string name = "NearHybridMap";
      public override string Name
      {
         get
         {
            return name;
         }
      }

      GMapProvider[] overlays;
      public override GMapProvider[] Overlays
      {
         get
         {
            if(overlays == null)
            {
               overlays = new GMapProvider[] { NearSatelliteMapProvider.Instance, this };
            }
            return overlays;
         }
      }

      public override PureImage GetTileImage(GPoint pos, int zoom)
      {
         string url = MakeTileImageUrl(pos, zoom, LanguageStr);

         return GetTileImageUsingHttp(url);
      }

      #endregion

      string MakeTileImageUrl(GPoint pos, int zoom, string language)
      {
         // http://web1.nearmap.com/maps/hl=en&x=37&y=19&z=6&nml=MapT&nmg=1&s=2KbhmZZ             
         // http://web1.nearmap.com/maps/hl=en&x=36&y=19&z=6&nml=MapT&nmg=1&s=2YKWhQi

         return string.Format(UrlFormat, GetServerNum(pos, 3), pos.X, pos.Y, zoom);
      }

      static readonly string UrlFormat = "http://web{0}.nearmap.com/maps/hl=en&x={1}&y={2}&z={3}&nml=MapT&nmg=1";
   }
}