///#################################################################
///     PROJECT : CASA - Common Authentication Services Adapter
///        FILE : Logger.cs
/// DESCRIPTION : Debug Log implementation Class.
///     AUTHORS : 
///  CREATED ON : 
///  UPDATED ON :  
///#################################################################


namespace Novell.CASA.GUI
{
	using System;
	using System.Text;
	using System.Diagnostics;
	using System.IO;    
	using System.Threading;

    class Logger
    {
        private static string debugLog = null;
        private static Stream debugStream= null;
        private static Mutex dbgmutex = new Mutex(); 
       

        static Logger()
        {
#if DEBUG
             debugLog = GetHomeDir() + "/.CASAManager.logs";

             // Set up for Debug

             if( File.Exists( debugLog ) )
             {
                 File.Delete( debugLog );
             }

             debugStream = File.Create(debugLog);

             Debug.Listeners.Add(new TextWriterTraceListener(debugStream));
             Debug.AutoFlush = true;
             Debug.Indent();
             Debug.WriteLine("Debug Log created");
#endif
          }

      
        public static void logbreak()
        {
            dbgmutex.WaitOne();
            Debug.WriteLine("  ") ;
            Debug.WriteLine("----------------------------------------------------") ;
            Debug.WriteLine("  ") ;
            dbgmutex.ReleaseMutex();
          
          }


       // The log format is Time stamp :Component name: Error description 
        public static void DbgLog(string message)
        {
#if DEBUG
            dbgmutex.WaitOne();

            Debug.Write(DateTime.Now.ToLongTimeString());
            Debug.Write(" " + DateTime.Now.ToLongDateString());
            Debug.Write(":");
            Debug.WriteLine(message);

            dbgmutex.ReleaseMutex();
#endif
        }    
       
        public static void ExpLog(string message)
        {
#if DEBUG
            dbgmutex.WaitOne();

            Debug.Write(DateTime.Now.ToLongTimeString());
            Debug.Write(" " + DateTime.Now.ToLongDateString());
            Debug.Write(": Exception encountered - ");
            Debug.WriteLine(message);
            Debug.WriteLine("  ") ;
            StackTrace st = new StackTrace();
            Debug.WriteLine(st.ToString());

            dbgmutex.ReleaseMutex();
#endif
        }
        static string GetHomeDir()
        {
             int platform = (int)Environment.OSVersion.Platform;

             if ( (platform == 128) || ( platform == 4) )
             {
                  return System.Environment.GetEnvironmentVariable("HOME");
             }
             else
             {
                 return (System.Environment.GetEnvironmentVariable("HOMEDRIVE")) +
                        (System.Environment.GetEnvironmentVariable("HOMEPATH"));
             }
        }

    }   
}