namespace BulkArchiveMailer.AddIn
{
    /// <summary>
    /// Static access point to the running add-in instance, matching the
    /// shape Visual Studio normally generates for VSTO projects (hand
    /// written here for the same reason as ThisAddIn.Designer.cs - see
    /// its header comment).
    ///
    /// <c>Microsoft.Office.Tools.Outlook.OutlookAddIn</c> has no static
    /// "GetInstance" helper (it is just the FormRegion-related interface
    /// implemented by the real base class, OutlookAddInBase) - the
    /// running instance is instead captured directly by
    /// ThisAddIn.Initialize() into <see cref="ThisAddIn"/> below, exactly
    /// like the real VSTO-generated Globals class does via its
    /// <c>Globals.ThisAddIn = this;</c> assignment.
    /// </summary>
    internal static class Globals
    {
        private static ThisAddIn _thisAddIn;
        private static Microsoft.Office.Tools.Outlook.Factory _factory;

        internal static ThisAddIn ThisAddIn
        {
            get { return _thisAddIn; }
            set
            {
                if (_thisAddIn == null)
                {
                    _thisAddIn = value;
                }
                else
                {
                    throw new System.NotSupportedException();
                }
            }
        }

        internal static Microsoft.Office.Tools.Outlook.Factory Factory
        {
            get { return _factory; }
            set
            {
                if (_factory == null)
                {
                    _factory = value;
                }
                else
                {
                    throw new System.NotSupportedException();
                }
            }
        }
    }
}