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using System;
using System.IO;
using System.Xml.Serialization;

namespace Cyotek.VisualStudioExtensions.AddProjects
{
  [Serializable]
  public class ExtensionSettings
  {
    #region Static Constructors

    static ExtensionSettings()
    {
      Serializer = new XmlSerializer(typeof(ExtensionSettings));
    }

    #endregion

    #region Constructors

    public ExtensionSettings()
    {
      this.Projects = new ExtensionSettingsProjectCollection();
      this.Filter = "C# Projects (*.csproj)|*.csproj|All Files (*.*)|*.*";
    }

    #endregion

    #region Class Properties

    private static XmlSerializer Serializer { get; set; }

    #endregion

    #region Class Members

    public static ExtensionSettings Load(string fileName)
    {
      ExtensionSettings settings;

      if (string.IsNullOrEmpty(fileName))
        throw new ArgumentNullException("fileName");

      settings = new ExtensionSettings();

      if (File.Exists(fileName))
      {
        try
        {
          using (FileStream stream = File.OpenRead(fileName))
            settings = (ExtensionSettings)Serializer.Deserialize(stream);
        }
          // ReSharper disable EmptyGeneralCatchClause
        catch
          // ReSharper restore EmptyGeneralCatchClause
        {
          // ignore exceptions
        }
      }

      return settings;
    }

    #endregion

    #region Properties

    public string Filter { get; set; }

    public ExtensionSettingsProjectCollection Projects { get; set; }

    #endregion

    #region Members

    public void Save(string fileName)
    {
      if (string.IsNullOrEmpty(fileName))
        throw new ArgumentNullException("fileName");

      Directory.CreateDirectory(Path.GetDirectoryName(fileName));

      using (Stream stream = File.Create(fileName))
        Serializer.Serialize(stream, this);
    }

    #endregion
  }
}