using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Xna.Framework.Storage;
using System.IO;
using System.Xml.Serialization;

namespace DarkWynter.Engine.HighScores
{
    /// <summary>
    /// This class is meant to load the saved HighScores file. THis works on 
    /// both the XBox and pc
    /// </summary>
    class LoadHighScores
    {
        String file;
        String path;

        /// <summary>
        /// Constructor
        /// </summary>
        /// <param name="path">the location of the file</param>
        /// <param name="file">the name of the file with extension</param>
        public LoadHighScores(String path, String file)
        {
            this.path = path;
            this.file = file;
        }//end constructor


        /// <summary>
        /// loads the file and returns a list of SavedData
        /// </summary>
        /// <returns></returns>
        public List<SaveData> LoadScores()
        {
            // Get the path of the save game
            string fileName = Path.Combine(path, file);

            // Check to see if the save exists
            if (!File.Exists(fileName))
                // Notify the user there is no save           
                return null; ;

            // Open the file
            FileStream stream = File.Open(fileName, FileMode.OpenOrCreate,
                FileAccess.Read);

            // Read the data from the file
            XmlSerializer serializer = new XmlSerializer(typeof(List<SaveData>));
            List<SaveData> list = (List<SaveData>)serializer.Deserialize(stream);

            // Close the file
            stream.Close();
            return list;
        }//end load

    }//end class
}//end namespace