// Copyright 2012 ESRI
// 
// All rights reserved under the copyright laws of the United States
// and applicable international laws, treaties, and conventions.
// 
// You may freely redistribute and use this sample code, with or
// without modification, provided you include the original copyright
// notice and use restrictions.
// 
// See the use restrictions.
// 

using System;
using System.Collections.ObjectModel;
using System.IO;
using System.Windows.Media.Imaging;


namespace GlobeGallery
{
  /// <summary>
  /// This class describes a single map - its location, the map name
  /// </summary>

    public class Map
    {
      public Map (string path)
      {
          _path = path;
          _source = new Uri (path);
          _image = BitmapFrame.Create (_source);
          string sub = path.Substring (path.LastIndexOf ("\\") + 1);
          _mapName = sub.Substring(0,sub.Length-4);
      }

      private string _path;
      private string _mapName;
      public string MapName { get { return _mapName; } }

      private Uri _source;
      public string Source { get { return _path; } }

      private BitmapFrame _image;
      public BitmapFrame Image { get { return _image; } set { _image = value; } }

    }

    /// <summary>
    /// This class represents a collection of map images in a directory.
    /// </summary>
    public class MapCollection: ObservableCollection<Map>
    {
      public MapCollection () { }

      public MapCollection (string path) : this (new DirectoryInfo (path)) { }

      public MapCollection (DirectoryInfo directory)
      {
        _directory = directory;
        Update ();
      }

      public string Path
      {
        set
        {
          _directory = new DirectoryInfo (value);
          Update ();
        }
        get { return _directory.FullName; }
      }

      public DirectoryInfo Directory
      {
        set
        {
          _directory = value;
          Update ();
        }
        get { return _directory; }
      }

      private void Update ()
      {
        this.Clear ();
        try
        {
          foreach (FileInfo f in _directory.GetFiles ("*.jpg"))
            Add (new Map (f.FullName));
        }
        catch (DirectoryNotFoundException)
        {
          System.Windows.MessageBox.Show ("No Such Directory");
        }
      }
      DirectoryInfo _directory;
    }

    /// <summary>
    /// This class returns a local data path as global variable.
    /// </summary>
    public class data
    {
      public static string GetLocalDataPath ()
      {
        string rootPath = Environment.CurrentDirectory;
        int position = rootPath.LastIndexOf ("\\");
        string subString = rootPath.Substring (0, position);
        return rootPath.Substring(0,subString.LastIndexOf("\\"));
      }
    }

}