using System;
using System.IO;
using System.Diagnostics;
using System.Collections;
using System.Runtime.CompilerServices;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Reflection;
using System.Collections.Concurrent;
using System.Linq;
using System.Threading;
using System.Security.Cryptography.X509Certificates;
using lib.Net;
using System.Dynamic;
using System.Xml.Schema;
using Microsoft.CodeAnalysis.CSharp.Syntax;
//using System.Threading.Tasks;

#nullable enable

/*

T O D O :
x) Hook the C# prints from glue.
x) Fix
x) Refactor various logs in order to do automagic structured logging
ref: https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/tutorials/interpolated-string-handler


D O N E:


N O T  D O I N G :


*/

public record struct Value<T>( T _val, string _exp = "" )
{
	public static T Default = default;

	public static implicit operator T( Value<T> v )
	{
		return v._val;
	}

	static public Value<U> Get<U>( U v,
		[CallerArgumentExpression("fn")]
			string dbgExp = ""
 )
 {
	return new( v, dbgExp );
 }
}

public struct SourceLoc
{
	readonly string _reason = "";
	readonly string _dbgName = "";
	readonly string _dbgPath = "";
	readonly int    _dbgLine = -1;

	public SourceLoc( string reason, string dbgName, string dbgPath, int dbgLine )
	{
		_reason  = reason;
		_dbgName = dbgName;
		_dbgPath = dbgPath;
		_dbgLine = dbgLine;
	}

	static public SourceLoc Record(
																	string reason = "",
																	[CallerMemberName] string dbgName = "",
																	[CallerFilePath] string dbgPath = "",
																	[CallerLineNumber] int dbgLine = 0
	)
	{
		return new SourceLoc( reason, dbgName, dbgPath, dbgLine );
	}


}


static public class log
{

	//static

	#region CLR Logging


	static log()
	{
		log.high( $"Starting tracers" );

		/*
		{
			var start = new ThreadStart( StartGCWatcher );

			var thread = new Thread( start );
			thread.Priority = ThreadPriority.BelowNormal;
			thread.Name = $"Logging";
			thread.Start();
		}
		// */

		//log.info( $"Tracing.Program.CreateTracingSession" );
		//var task = log.call( Tracing.Program.CreateTracingSession( false, true, 64 ) );

		/*
		log.info( $"Tracing.MemoryPipe" );

		var memoryPipe = log.call( () => new Tracing.MemoryPipe() );

		//var pipeTask = log.call( () => memoryPipe.StartAsync( true ) );
		//*/

		/*
		{
			var start = new ThreadStart( StartTracing );

			var thread = new Thread( start );
			thread.Priority = ThreadPriority.BelowNormal;
			thread.Name = $"Logging";
			thread.Start();
		}
		// */


	}

	static void StartGCWatcher()
	{
		while( !s_running )
		{
			Thread.Sleep( 10 );
		}

		var processId = Process.GetCurrentProcess().Id;
		LogGC.PrintRuntimeGCEvents( processId );
	}

	static void StartTracing()
	{
		while( !s_running )
		{
			Thread.Sleep( 10 );
		}

		Tracing.TraceLogMonitor.Run();
	}

	#endregion // CLR Logging

	static public Value<T> Value<T>( T val,
		[CallerArgumentExpression("val")]
			string dbgExp = ""
 )
 {
	return new( val, dbgExp );
 }

	[Flags]
	public enum LogType
	{
		Invalid = 0,
		Trace = 1,
		Debug = 2,
		Info = 3,
		High = 4,
		Warn = 5,
		Error = 6,
		Fatal = 7,

		Time = 64,
		Raw = 65,
	}

	[Flags]
	public enum Endpoints
	{
		None = 0,

		File = 1 << 0,
		Console = 1 << 1,

		All = File | Console,
	}


	public struct LogEvent
	{
		public DateTime Time;
		public LogType LogType;
		public string Msg;
		public string Path;
		public int Line;
		public string Member;
		public string Exp;

		public string Cat;
		public object? Obj;



		static ImmutableDictionary<int, string> s_shortname = ImmutableDictionary<int, string>.Empty;






		public LogEvent( LogType logType, string msg, string path, int line, string member, string cat, string exp, object? obj )
		{

			//Cache the automatic category names
			// R A R E and S L O W and S A F E
			if( string.IsNullOrEmpty( cat ) )
			{
				var pathHash = path.GetHashCode();
				if( s_shortname.TryGetValue( pathHash, out var autoCat ) )
				{
					cat = autoCat;
				}
				else
				{
					var pathPieces = path.Split( '\\' );

					if( pathPieces.Length < 2 )
					{
						pathPieces = path.Split( '/' );
					}

					var lastDir = pathPieces[pathPieces.Length - 2];

					ImmutableInterlocked.AddOrUpdate( ref s_shortname, pathHash, lastDir, ( key, value ) => { return lastDir; } );

					cat = lastDir;
				}
			}

			Time = DateTime.Now;
			LogType = logType;
			Msg = msg;
			Path = path;
			Line = line;
			Member = member;
			Cat = cat;
			Exp = exp;
			Obj = obj;
		}
	}
	static LogEvent CreateLogEvent( LogType logType, string msg, string cat, object? obj, [CallerFilePath] string path = "", [CallerLineNumber] int line = -1, [CallerMemberName] string member = "", string exp = "" )
	{
		var logEvent = new LogEvent( logType, msg, path, line, member, cat, exp, obj );

		return logEvent;
	}

	public delegate void Log_delegate( LogEvent evt );

	static ImmutableDictionary<string, Endpoints> s_logEPforCat = ImmutableDictionary<string, Endpoints>.Empty;

	static public void endpointForCat( string cat, Endpoints ep )
	{
		ImmutableInterlocked.AddOrUpdate( ref s_logEPforCat, cat, ep, (k, v) => ep );
	}



	static public void create( string filename, Endpoints endpoints )
	{
		startup( filename, endpoints );
	}

	static public void destroy()
	{
		string msg = "==============================================================================\nLogfile shutdown at " + DateTime.Now.ToString();

		var evt = CreateLogEvent( LogType.Info, msg, "System", null );

		s_events.Enqueue( evt );

		stop();
	}

	static internal ConcurrentQueue<LogEvent> s_events = new ConcurrentQueue<LogEvent>();

	static private Thread s_thread = Thread.CurrentThread;

	static string s_cwd = Directory.GetCurrentDirectory();
	static int s_cwdLength = s_cwd.Length;
	static ImmutableDictionary<int, string> s_files = ImmutableDictionary<int, string>.Empty;

#region Util
	static public (string, string, int) record( [CallerMemberName] string dbgName = "", [CallerFilePath] string dbgPath = "", [CallerLineNumber] int dbgLine = -1 )
		=> (dbgName, dbgPath, dbgLine);


	static public string whatFile( string path )
	{
		var file = "";

		var pathHash = path.GetHashCode();
		if( s_files.TryGetValue( pathHash, out var autoCat ) )
		{
			file = autoCat;
		}
		else
		{
			var pathPieces = path.Split( '\\' );

			if( pathPieces.Length < 2 )
			{
				pathPieces = path.Split( '/' );
			}

			var lastDir = pathPieces[pathPieces.Length - 1];

			ImmutableInterlocked.AddOrUpdate( ref s_files, pathHash, lastDir, ( key, value ) => { return lastDir; } );

			file = lastDir;
		}

		return file;
	}

	static public string relativePath( string fullPath )
	{
		if( fullPath.Length < s_cwdLength )
			return fullPath;

		var rel = fullPath.Substring( s_cwdLength + 1 );

		return rel;
	}

	static public string thisFilePath( [CallerFilePath] string path = "" )
	{
		return relativePath( path );
	}
#endregion // Util

#region Forwards
	static public T call<T>( Func<T> func, [CallerMemberName] string dbgName = "", [CallerFilePath] string dbgPath = "", [CallerLineNumber] int dbgLine = -1, [CallerArgumentExpression("func")] string dbgExp = "" )
	{
		log.info( $"Calling {dbgExp}" );
		var val = func();
		log.info( $"| Got {val}" );
		return val;
	}

	static public T call<T>( T val, [CallerMemberName] string dbgName = "", [CallerFilePath] string dbgPath = "", [CallerLineNumber] int dbgLine = -1, [CallerArgumentExpression("val")] string dbgExp = "" )
	{
		log.info( $"Called {dbgExp} Got: {val}" );
		return val;
	}

	static public void call( Action func, [CallerMemberName] string dbgName = "", [CallerFilePath] string dbgPath = "", [CallerLineNumber] int dbgLine = -1, [CallerArgumentExpression("func")] string dbgExp = "" )
	{
		log.info( $"Calling {dbgExp}" );
		func();
		log.info( $"| Done" );
	}

	static public void fatal( string msg, string cat = "", object? obj = null, [CallerFilePath] string path = "", [CallerLineNumber] int line = -1, [CallerMemberName] string member = "", [CallerArgumentExpression("msg")] string dbgExp = "" )
	{
		logBase( msg, LogType.Fatal, path, line, member, cat, dbgExp, obj );
	}

	[StackTraceHidden]
	static public void error( string msg, string cat = "", object? obj = null, [CallerFilePath] string path = "", [CallerLineNumber] int line = -1, [CallerMemberName] string member = "", [CallerArgumentExpression("msg")] string dbgExp = "" )
	{
		logBase( msg, LogType.Error, path, line, member, cat, dbgExp, obj );
	}

	[StackTraceHidden]
	static public void warn( string msg, string cat = "", object? obj = null, [CallerFilePath] string path = "", [CallerLineNumber] int line = -1, [CallerMemberName] string member = "", [CallerArgumentExpression("msg")] string dbgExp = "" )
	{
		logBase( msg, LogType.Warn, path, line, member, cat, dbgExp, obj );
	}

	static public void high( string msg, string cat = "", object? obj = null, [CallerFilePath] string path = "", [CallerLineNumber] int line = -1, [CallerMemberName] string member = "", [CallerArgumentExpression("msg")] string dbgExp = "" )
	{
		logBase( msg, LogType.High, path, line, member, cat, dbgExp, obj );
	}

	static public void info( string msg, string cat = "", object? obj = null,
	[CallerFilePath] string path = "", [CallerLineNumber] int line = -1, [CallerMemberName] string member = "", [CallerArgumentExpression("msg")] string dbgExp = "" )
	{
		logBase( msg, LogType.Info, path, line, member, cat, dbgExp, obj );
	}

	static public void debug( string msg, string cat = "", object? obj = null, [CallerFilePath] string path = "", [CallerLineNumber] int line = -1, [CallerMemberName] string member = "", [CallerArgumentExpression("msg")] string dbgExp = "" )
	{
		logBase( msg, LogType.Debug, path, line, member, cat, dbgExp, obj );
	}

	static public void trace( string msg, string cat = "", object? obj = null, [CallerFilePath] string path = "", [CallerLineNumber] int line = -1, [CallerMemberName] string member = "", [CallerArgumentExpression("msg")] string dbgExp = "" )
	{
		logBase( msg, LogType.Trace, path, line, member, cat, dbgExp, obj );
	}




	static public void inf_valueo<A>( string msg, Value<A> v1, string cat = "" )
	{
	}

	static public void info<A>( string msg, A a, string cat = "", [CallerArgumentExpression("a")] string dbgExpA = "" )
	{
	}

	static public void info( string msg, object a, object b, string cat = "", [CallerArgumentExpression("a")] string dbgExpA = "", [CallerArgumentExpression("a")] string dbgExpB = "" )
	{
	}


	#endregion

#region Helpers
	static public void logProps( object obj, string header, LogType type = LogType.Debug, string cat = "", string prefix = "", [CallerFilePath] string path = "", [CallerLineNumber] int line = -1, [CallerMemberName] string member = "", [CallerArgumentExpression("obj")] string dbgExpObj = "" )
	{
		var list = refl.GetAllProperties( obj.GetType() );

		lock( s_lock )
		{
			var evt = new LogEvent( type, header, path, line, member, cat, dbgExpObj, obj );
			{

				s_events.Enqueue( evt );

				foreach( var pi in list )
				{
					try
					{
						var v = pi.GetValue( obj );

						logBase( $"{prefix}{pi.Name} = {v}", type, path, line, member, dbgExpObj, cat );
					}
					catch( Exception ex )
					{
						logBase( $"Exception processing {pi.Name} {ex.Message}", LogType.Error, path, line, member, cat, dbgExpObj, obj);
					}
				}

			}
		}
	}

	//This might seem a little odd, but the intent is that usually you wont need to set notExpectedValue.
	static public void expected<T>( T value, string falseString, string trueString = "", T? notExpectedValue = default( T ) )
	{
		if( !object.Equals( value, notExpectedValue ) )
		{
			log.debug( $"Properly got {value}{trueString}" );
		}
		else
		{
			log.warn( $"Got {notExpectedValue} instead of {value}{falseString}" );
		}
	}
#endregion


	static object s_lock = new object();
	static object s_lockTypeCallback = new object();
	static ImmutableDictionary<LogType, Action<LogEvent>> s_callbacks = ImmutableDictionary<LogType, Action<LogEvent>>.Empty;

	[StackTraceHidden]
	static public void addDirectCallback( LogType logType, Action<LogEvent> callback )
	{
		//ImmutableInterlocked.Add( ref s_callbacks, logType, callback );
		var added = II.TryAdd( ref s_callbacks, logType, callback );
		if( !added )
		{
			log.warn( $"Failed to add callback for {logType}" );
		}
	}


	static public LogEvent logCreateEvent( string msg, LogType type = LogType.Debug, string path = "", int line = -1, string member = "", string cat = "unk", string exp = "", object? obj = null )
	{
		LogEvent evt = new LogEvent( type, msg, path, line, member, cat, exp, obj );
		return evt;
	}

	[StackTraceHidden]
	static public void logBase( string msg, LogType type = LogType.Debug, string path = "", int line = -1, string member = "", string cat = "unk", string exp = "", object? obj = null )
	{
		var evt = logCreateEvent( msg, type, path, line, member, cat, exp );

		s_callbacks.TryGetValue( type, out var callback );

		if( callback != null )
		{
			lock( s_lockTypeCallback )
			{
				callback( evt );
			}
		}
		else
		{
			s_events.Enqueue( evt );
		}


	}


	static Endpoints s_endpoints = Endpoints.Console;
	static int s_catWidth = 14;

	static void startup( string filename, Endpoints endpoints )
	{
		if( string.IsNullOrWhiteSpace( filename ) )
		{
			return;
		}

		s_startTime = DateTime.Now;

		s_cwd = Directory.GetCurrentDirectory();
		s_cwdLength = s_cwd.Length;

		s_endpoints = endpoints;

		var dir = Path.GetDirectoryName( filename );

		if( dir?.Length > 0 )
		{
			Directory.CreateDirectory( dir );
		}


		s_stream = new FileStream( filename, FileMode.Append, FileAccess.Write );
		s_writer = new StreamWriter( s_stream );

		s_errorStream = new FileStream( filename + ".error", FileMode.Append, FileAccess.Write );
		s_errorWriter = new StreamWriter( s_errorStream );

		{
				var time = DateTime.Now;
				// Header for this run
				var blankLine = new LogEvent( LogType.Raw, $"", "", 0, "", "lib.time", "", null );
				var beginLine = new LogEvent( LogType.Raw, $"Begin B E G I N  ******************************************************************************************************************", "", 0, "", "lib.time", "", null );
				var timeLine  = new LogEvent( LogType.Raw, $"D A T E    {time.Year}/{time.Month.ToString("00")}/{time.Day.ToString("00")}    T I M E  {time.Hour.ToString("00")}:{time.Minute.ToString("00")}:{time.Second.ToString("00")}.{time.Millisecond.ToString("000")}{time.Microsecond.ToString("000")}", "", 0, "", "lib.time", "", null );


				//writeToAll( endLine   );
				writeToAll( blankLine );
				writeToAll( blankLine );
				writeToAll( beginLine );
				writeToAll( blankLine );
				writeToAll( timeLine );
				writeToAll( blankLine );

		}

		LogEvent msgStartupBegin = new LogEvent( LogType.Info,  $"startup BEGIN", "", 0, "", "log.startup", "", null );
		writeToAll( msgStartupBegin );

		LogEvent msgFilename = new LogEvent( LogType.Info,  $"Logging in {filename}", "", 0, "", "log.startup", "", null );
		writeToAll( msgFilename );

		var start = new ThreadStart( run );

		s_thread = new Thread( start );
		s_thread.Priority = ThreadPriority.BelowNormal;
		s_thread.Name = $"Logging";
		s_thread.Start();



		//info( $"Logging in {filename}" );


		LogGC.RegisterObjectId( s_lock );

		//Debug.Listeners.Add( this );

		//var evt = CreateLogEvent( LogType.Info, $"startup", "System", null );

		//s_events.Enqueue( evt );

		/*
		if( (endpoints & Endpoints.Console) == Endpoints.Console )
		{
			addDelegate(WriteToConsole);
		}
		*/


		//LogEvent msgStartupBegin = new LogEvent( LogType.Info,  $"startup END", "", 0, "", "lib.time", "", null );
		//writeToAll( msgStartupBegin );

		info( $"startup END", cat: "log.startup" );

	}

	static bool s_running = true;

	static void run()
	{

		while( s_running )
		{
			while( s_events.TryDequeue( out var evt ) )
			{
				writeToAll( evt );
			}

			// TODO PERF Replace this with a semaphore/mutex
			Thread.Sleep( 0 );
		}

		var endLine   = new LogEvent( LogType.Raw, $"End   E N D      ******************************************************************************************************************", "", 0, "", "lib.time", "", null );
		writeToAll( endLine   );

	}


	public static void stop()
	{
		if( !s_running ) return;

		s_running = false;

		while( s_thread.IsAlive )
		{
			Thread.Sleep( 0 );
		}

		s_writer?.Close();
		s_stream?.Close();

		s_errorWriter?.Close();
		s_errorStream?.Close();

	}

	static public void addDelegate( Log_delegate cb )
	{
		s_delegates.Add( cb );
	}

	public static char getSymbol( LogType type )
	{
		switch( type )
		{
			case LogType.Trace: return ' ';
			case LogType.Debug: return ' ';
			case LogType.Info:  return ' ';
			case LogType.High:  return '+';
			case LogType.Warn:  return '+';
			case LogType.Error: return '*';
			case LogType.Fatal: return '*';
			     default:       return '?';
		}
	}

	private static void setConsoleColor( log.LogEvent evt )
	{
		switch( evt.LogType )
		{
			case log.LogType.Trace:
				Console.ForegroundColor = ConsoleColor.DarkGray;
				break;
			case log.LogType.Debug:
				Console.ForegroundColor = ConsoleColor.Gray;
				break;
			case log.LogType.Info:
				Console.ForegroundColor = ConsoleColor.DarkGreen;
				break;
			case log.LogType.High:
				Console.ForegroundColor = ConsoleColor.Cyan;
				break;
			case log.LogType.Warn:
				Console.ForegroundColor = ConsoleColor.Yellow;
				break;
			case log.LogType.Error:
				Console.ForegroundColor = ConsoleColor.DarkRed;
				Console.BackgroundColor = ConsoleColor.DarkGray;
				break;
			case log.LogType.Fatal:
				Console.ForegroundColor = ConsoleColor.Red;
				Console.BackgroundColor = ConsoleColor.DarkGray;
				break;

			case log.LogType.Invalid:
			case log.LogType.Time:
			case log.LogType.Raw:
				Console.ForegroundColor = ConsoleColor.Red;
				break;

		}
	}

	static private DateTime s_startTime = DateTime.MinValue;

	static private int s_lastDisplaySeconds = -1;
	static private int s_lastSecond = -1;
	static private string s_timeHeader = " ";


	static public string headerPrint( LogEvent evt )
	{
		if( evt.LogType != LogType.Raw )
		{
			var span = evt.Time - s_startTime;

			char sym = getSymbol( evt.LogType );

			var truncatedCat = evt.Cat.Substring( 0, Math.Min( s_catWidth, evt.Cat.Length ) );

			var timeHdr = $"{s_timeHeader}{((int)span.TotalMinutes).ToString("000")}:{span.Seconds.ToString("D2")}.{span.Milliseconds.ToString("000")}";

			var msgHdr = string.Format( $"{timeHdr} | {{0,-{s_catWidth}}}{{1}}| ", truncatedCat, sym );

			return msgHdr;
		}
		else
		{
			return "";
		}

	}

	static public string headerFile( LogEvent evt )
	{
		if( evt.LogType != LogType.Raw )
		{
			var span = evt.Time - s_startTime;

			char sym = getSymbol( evt.LogType );

			var truncatedCat = evt.Cat.Substring( 0, Math.Min( s_catWidth, evt.Cat.Length ) );

			//Dont really need the year-month-day frankly.
			//var timeHdr = $"{evt.Time.Year}-{evt.Time.Month.ToString("00")}-{evt.Time.Day.ToString("00")} {evt.Time.Hour.ToString("00")}:{evt.Time.Minute.ToString("00")}:{evt.Time.Second.ToString("00")}.{evt.Time.Millisecond.ToString("000")}{evt.Time.Microsecond.ToString("000")}";
			var timeHdr = $"{evt.Time.Hour.ToString("00")}:{evt.Time.Minute.ToString("00")}:{evt.Time.Second.ToString("00")}.{evt.Time.Millisecond.ToString("000")}{evt.Time.Microsecond.ToString("000")}";

			var msgHdr = string.Format( $"{timeHdr} | {{0,-{s_catWidth}}}{{1}}| ", truncatedCat, sym );

			return msgHdr;
		}
		else
		{
			return "";
		}

	}


	static public string msgPrint( LogEvent evt )
	{
		var msgHdr = headerPrint( evt );

		string finalLine = $"{msgHdr}{evt.Msg}";

		return finalLine;
	}

	static public string msgFile( LogEvent evt )
	{
		var msgHdr = headerFile( evt );

		string finalLine = $"{msgHdr}{evt.Msg}";

		return finalLine;
	}

	static private void writeSpecialEvent( LogEvent evt )
	{
		if( ( s_endpoints & Endpoints.Console ) == Endpoints.Console )
		{
			//setConsoleColor( evt );
			//Console.WriteLine( $"{evt.Time.ToShortTimeString()}" );
			//Console.ResetColor();
		}

		foreach( Log_delegate cb in s_delegates )
		{
			cb( evt );
		}
	}

	static private void writeToAll( LogEvent evt )
	{
		try
		{
			#region Time
			var span = evt.Time - s_startTime;

			var curSeconds = (int)span.TotalSeconds;

			if( curSeconds - s_lastDisplaySeconds > 10 )
			{
				s_lastDisplaySeconds = curSeconds;

				var minuteEvt = new LogEvent( LogType.Raw, $"T I M E ==> {evt.Time.Hour.ToString("00")}:{evt.Time.Minute.ToString("00")}:{evt.Time.Second.ToString("00")}.{evt.Time.Millisecond.ToString("000")} : {evt.Time.ToShortDateString()}", "", 0, "", "lib.time", "", null );
				minuteEvt.Time = evt.Time;
				writeSpecialEvent( minuteEvt );
			}

			if( evt.LogType != LogType.Raw )
			{
				var curSecond = (int)span.TotalSeconds;

				if( s_lastSecond == curSecond )
				{
					s_timeHeader = " ";
				}
				else
				{
					s_timeHeader = "*";
					s_lastSecond = curSecond;
				}
			}

			#endregion


			#region Write

			var finalEndpoints = s_logEPforCat.TryGetValue( evt.Cat, out var ep ) ? ep & s_endpoints : s_endpoints;

			if( ( finalEndpoints & Endpoints.File ) == Endpoints.File )
			{
				var line = msgFile( evt );
				s_writer?.WriteLine( line );
			}

			if( ( finalEndpoints & Endpoints.Console ) == Endpoints.Console )
			{
				var line = msgPrint( evt );
				setConsoleColor( evt );
				Console.WriteLine( line );
				Console.ResetColor();
			}


			//Debug.WriteLine( finalLine );

			s_writer?.Flush();

			foreach( Log_delegate cb in s_delegates )
			{
				cb( evt );
			}

			#endregion
		}
		catch( Exception ex )
		{
		#region Catch
			Console.WriteLine( "EXCEPTION DURING LOGGING" );
			Console.WriteLine( "EXCEPTION DURING LOGGING" );
			Console.WriteLine( "EXCEPTION DURING LOGGING" );
			Console.WriteLine( "EXCEPTION DURING LOGGING" );
			Console.WriteLine( "EXCEPTION DURING LOGGING" );
			Console.WriteLine( $"Exception {ex}" );

			Debug.WriteLine( "EXCEPTION DURING LOGGING" );
			Debug.WriteLine( "EXCEPTION DURING LOGGING" );
			Debug.WriteLine( "EXCEPTION DURING LOGGING" );
			Debug.WriteLine( "EXCEPTION DURING LOGGING" );
			Debug.WriteLine( "EXCEPTION DURING LOGGING" );
			Debug.WriteLine( $"Exception {ex}" );
		#endregion
		}

	}

	public static void WriteToConsole( LogEvent evt )
	{
		char sym = getSymbol( evt.LogType );

		var truncatedCat = evt.Cat.Substring( 0, Math.Min( 8, evt.Cat.Length ) );

		string finalLine = string.Format( "{0,-8}{1}| {2}", truncatedCat, sym, evt.Msg );

		Console.WriteLine( finalLine );
	}


	private static Stream? s_stream;
	private static StreamWriter? s_writer;

	private static Stream? s_errorStream;
	private static StreamWriter? s_errorWriter;

	private static ArrayList s_delegates = new ArrayList();

}