using Crestron.SimplSharp;
using Crestron.SimplSharp.CrestronDataStore;
using Crestron.SimplSharp.CrestronIO;
using Crestron.SimplSharp.CrestronLogger;
using Newtonsoft.Json;
using PepperDash.Core.Logging;
using Serilog;
using Serilog.Context;
using Serilog.Core;
using Serilog.Events;
using Serilog.Formatting.Compact;
using Serilog.Formatting.Json;
using Serilog.Templates;
using System;
using System.Collections.Generic;
using System.Reflection;
using System.Text.RegularExpressions;

namespace PepperDash.Core
{
    /// <summary>
    /// Contains debug commands for use in various situations
    /// </summary>
    public static class Debug
    {
        private static readonly string LevelStoreKey = "ConsoleDebugLevel";
        private static readonly string WebSocketLevelStoreKey = "WebsocketDebugLevel";
        private static readonly string ErrorLogLevelStoreKey = "ErrorLogDebugLevel";
        private static readonly string FileLevelStoreKey = "FileDebugLevel";

        private static readonly Dictionary<uint, LogEventLevel> _logLevels = new Dictionary<uint, LogEventLevel>()
        {
            {0, LogEventLevel.Information },
            {3, LogEventLevel.Warning },
            {4, LogEventLevel.Error },
            {5, LogEventLevel.Fatal },
            {1, LogEventLevel.Debug },
            {2, LogEventLevel.Verbose },
        };

        private static ILogger _logger;

        private static readonly LoggingLevelSwitch _consoleLoggingLevelSwitch;

        private static readonly LoggingLevelSwitch _websocketLoggingLevelSwitch;

        private static readonly LoggingLevelSwitch _errorLogLevelSwitch;

        private static readonly LoggingLevelSwitch _fileLevelSwitch;

        public static LogEventLevel WebsocketMinimumLogLevel
        {
            get { return _websocketLoggingLevelSwitch.MinimumLevel; }
        }

        private static readonly DebugWebsocketSink _websocketSink;

        public static DebugWebsocketSink WebsocketSink
        {
            get { return _websocketSink; }
        }

        /// <summary>
        /// Describes the folder location where a given program stores it's debug level memory. By default, the
        /// file written will be named appNdebug where N is 1-10.
        /// </summary>
        public static string OldFilePathPrefix = @"\nvram\debug\";

        /// <summary>
        /// Describes the new folder location where a given program stores it's debug level memory. By default, the
        /// file written will be named appNdebug where N is 1-10.
        /// </summary>
        public static string NewFilePathPrefix = @"\user\debug\";

        /// <summary>
        /// The name of the file containing the current debug settings.
        /// </summary>
        public static string FileName = string.Format(@"app{0}Debug.json", InitialParametersClass.ApplicationNumber);

        /// <summary>
        /// Debug level to set for a given program.
        /// </summary>
        public static int Level { get; private set; }

        /// <summary>
        /// When this is true, the configuration file will NOT be loaded until triggered by either a console command or a signal
        /// </summary>
        public static bool DoNotLoadConfigOnNextBoot { get; private set; }

        private static DebugContextCollection _contexts;

        private const int SaveTimeoutMs = 30000;

        public static bool IsRunningOnAppliance = CrestronEnvironment.DevicePlatform == eDevicePlatform.Appliance;

        /// <summary>
        /// Version for the currently loaded PepperDashCore dll
        /// </summary>
        public static string PepperDashCoreVersion { get; private set; } 

        private static CTimer _saveTimer;

		/// <summary>
		/// When true, the IncludedExcludedKeys dict will contain keys to include. 
		/// When false (default), IncludedExcludedKeys will contain keys to exclude.
		/// </summary>
		private static bool _excludeAllMode;

		//static bool ExcludeNoKeyMessages;

		private static readonly Dictionary<string, object> IncludedExcludedKeys;

        private static readonly LoggerConfiguration _defaultLoggerConfiguration;

        private static LoggerConfiguration _loggerConfiguration;

        public static LoggerConfiguration LoggerConfiguration => _loggerConfiguration;

        static Debug()
        {
            CrestronDataStoreStatic.InitCrestronDataStore();

            var defaultConsoleLevel = GetStoredLogEventLevel(LevelStoreKey);

            var defaultWebsocketLevel = GetStoredLogEventLevel(WebSocketLevelStoreKey);

            var defaultErrorLogLevel = GetStoredLogEventLevel(ErrorLogLevelStoreKey);

            var defaultFileLogLevel = GetStoredLogEventLevel(FileLevelStoreKey);

            _consoleLoggingLevelSwitch = new LoggingLevelSwitch(initialMinimumLevel: defaultConsoleLevel);            

            _websocketLoggingLevelSwitch = new LoggingLevelSwitch(initialMinimumLevel: defaultWebsocketLevel);

            _errorLogLevelSwitch = new LoggingLevelSwitch(initialMinimumLevel: defaultErrorLogLevel);

            _fileLevelSwitch = new LoggingLevelSwitch(initialMinimumLevel: defaultFileLogLevel);

            _websocketSink = new DebugWebsocketSink(new JsonFormatter(renderMessage: true));

            var logFilePath = CrestronEnvironment.DevicePlatform == eDevicePlatform.Appliance ?
                $@"{Directory.GetApplicationRootDirectory()}{Path.DirectorySeparatorChar}user{Path.DirectorySeparatorChar}debug{Path.DirectorySeparatorChar}app{InitialParametersClass.ApplicationNumber}{Path.DirectorySeparatorChar}global-log.log" :
                $@"{Directory.GetApplicationRootDirectory()}{Path.DirectorySeparatorChar}user{Path.DirectorySeparatorChar}debug{Path.DirectorySeparatorChar}room{InitialParametersClass.RoomId}{Path.DirectorySeparatorChar}global-log.log";

            CrestronConsole.PrintLine($"Saving log files to {logFilePath}");

            _defaultLoggerConfiguration = new LoggerConfiguration()
                .MinimumLevel.Verbose()
                .Enrich.FromLogContext()
                .Enrich.With(new CrestronEnricher())
                .WriteTo.Sink(new DebugConsoleSink(new ExpressionTemplate("[{@t:yyyy-MM-dd HH:mm:ss.fff}][{@l:u4}][{App}]{#if Key is not null}[{Key}]{#end} {@m}{#if @x is not null}\r\n{@x}{#end}")), levelSwitch: _consoleLoggingLevelSwitch)
                .WriteTo.Sink(_websocketSink, levelSwitch: _websocketLoggingLevelSwitch)
                .WriteTo.Sink(new DebugErrorLogSink(new ExpressionTemplate("[{@t:yyyy-MM-dd HH:mm:ss.fff}][{@l:u4}][{App}]{#if Key is not null}[{Key}]{#end} {@m}{#if @x is not null}\r\n{@x}{#end}")), levelSwitch: _errorLogLevelSwitch)
                .WriteTo.File(new RenderedCompactJsonFormatter(), logFilePath,                                    
                    rollingInterval: RollingInterval.Day,
                    restrictedToMinimumLevel: LogEventLevel.Debug,
                    retainedFileCountLimit: CrestronEnvironment.DevicePlatform == eDevicePlatform.Appliance ? 30 : 60,
                    levelSwitch: _fileLevelSwitch
                );

            try
            {
                if (InitialParametersClass.NumberOfRemovableDrives > 0)
                {
                    CrestronConsole.PrintLine("{0} RM Drive(s) Present. Initializing CrestronLogger", InitialParametersClass.NumberOfRemovableDrives);
                    _defaultLoggerConfiguration.WriteTo.Sink(new DebugCrestronLoggerSink());
                }
                else
                    CrestronConsole.PrintLine("No RM Drive(s) Present. Not using Crestron Logger");
            }
            catch (Exception e)
            {
                CrestronConsole.PrintLine("Initializing of CrestronLogger failed: {0}", e);
            }

            // Instantiate the root logger
            _loggerConfiguration = _defaultLoggerConfiguration;

            _logger = _loggerConfiguration.CreateLogger();
            // Get the assembly version and print it to console and the log
            GetVersion();

            string msg = $"[App {InitialParametersClass.ApplicationNumber}] Using PepperDash_Core v{PepperDashCoreVersion}";

            if (CrestronEnvironment.DevicePlatform == eDevicePlatform.Server)
            {
                msg = $"[Room {InitialParametersClass.RoomId}] Using PepperDash_Core v{PepperDashCoreVersion}";
            }

            CrestronConsole.PrintLine(msg);

            LogMessage(LogEventLevel.Information,msg);

			IncludedExcludedKeys = new Dictionary<string, object>();
            
            if (CrestronEnvironment.RuntimeEnvironment == eRuntimeEnvironment.SimplSharpPro)
            {
                // Add command to console
                CrestronConsole.AddNewConsoleCommand(SetDoNotLoadOnNextBootFromConsole, "donotloadonnextboot", 
                    "donotloadonnextboot:P [true/false]: Should the application load on next boot", ConsoleAccessLevelEnum.AccessOperator);

                CrestronConsole.AddNewConsoleCommand(SetDebugFromConsole, "appdebug",
                    "appdebug:P [0-5]: Sets the application's console debug message level",
                    ConsoleAccessLevelEnum.AccessOperator);
                CrestronConsole.AddNewConsoleCommand(ShowDebugLog, "appdebuglog",
                    "appdebuglog:P [all] Use \"all\" for full log.", 
                    ConsoleAccessLevelEnum.AccessOperator);
                CrestronConsole.AddNewConsoleCommand(s => CrestronLogger.Clear(false), "appdebugclear",
                    "appdebugclear:P Clears the current custom log", 
                    ConsoleAccessLevelEnum.AccessOperator);
				CrestronConsole.AddNewConsoleCommand(SetDebugFilterFromConsole, "appdebugfilter",
					"appdebugfilter [params]", ConsoleAccessLevelEnum.AccessOperator);
            }

            CrestronEnvironment.ProgramStatusEventHandler += CrestronEnvironment_ProgramStatusEventHandler;

            LoadMemory();

            var context = _contexts.GetOrCreateItem("DEFAULT");
            Level = context.Level;
            DoNotLoadConfigOnNextBoot = context.DoNotLoadOnNextBoot;

            if(DoNotLoadConfigOnNextBoot)
                CrestronConsole.PrintLine(string.Format("Program {0} will not load config after next boot.  Use console command go:{0} to load the config manually", InitialParametersClass.ApplicationNumber));

            _consoleLoggingLevelSwitch.MinimumLevelChanged += (sender, args) =>
            {
                Console(0, "Console debug level set to {0}", _consoleLoggingLevelSwitch.MinimumLevel);
            };
        }

        public static void UpdateLoggerConfiguration(LoggerConfiguration config)
        {
            _loggerConfiguration = config;

            _logger = config.CreateLogger();
        }

        public static void ResetLoggerConfiguration()
        {
            _loggerConfiguration = _defaultLoggerConfiguration;

            _logger = _loggerConfiguration.CreateLogger();
        }

        private static LogEventLevel GetStoredLogEventLevel(string levelStoreKey)
        {
            try
            {
                var result = CrestronDataStoreStatic.GetLocalIntValue(levelStoreKey, out int logLevel);                

                if (result != CrestronDataStore.CDS_ERROR.CDS_SUCCESS)
                {
                    CrestronConsole.Print($"Unable to retrieve stored log level for {levelStoreKey}.\r\nError: {result}.\r\nSetting level to {LogEventLevel.Information}\r\n");
                    return LogEventLevel.Information;
                }

                if(logLevel < 0 || logLevel > 5)
                {
                    CrestronConsole.PrintLine($"Stored Log level not valid for {levelStoreKey}: {logLevel}. Setting level to {LogEventLevel.Information}");
                    return LogEventLevel.Information;
                }

                return (LogEventLevel)logLevel;
            } catch (Exception ex)
            {
                CrestronConsole.PrintLine($"Exception retrieving log level for {levelStoreKey}: {ex.Message}");
                return LogEventLevel.Information;
            }
        }

        private static void GetVersion()
        {
            var assembly = Assembly.GetExecutingAssembly();
            var ver =
                assembly
                    .GetCustomAttributes(typeof (AssemblyInformationalVersionAttribute), false);

            if (ver != null && ver.Length > 0)
            {
                if (ver[0] is AssemblyInformationalVersionAttribute verAttribute)
                {
                    PepperDashCoreVersion = verAttribute.InformationalVersion;
                }
            }
            else
            {
                var version = assembly.GetName().Version;
                PepperDashCoreVersion = version.ToString();
            }
        }

        /// <summary>
        /// Used to save memory when shutting down
        /// </summary>
        /// <param name="programEventType"></param>
        static void CrestronEnvironment_ProgramStatusEventHandler(eProgramStatusEventType programEventType)
        {

            if (programEventType == eProgramStatusEventType.Stopping)
            {
                Log.CloseAndFlush();

                if (_saveTimer != null)
                {
                    _saveTimer.Stop();
                    _saveTimer = null;
                }
                Console(0, "Saving debug settings");
                SaveMemory();
            }
        }

        /// <summary>
        /// Callback for console command
        /// </summary>
        /// <param name="levelString"></param>
        public static void SetDebugFromConsole(string levelString)
        {
            try
            {
                if (levelString.Trim() == "?")
                {
                    CrestronConsole.ConsoleCommandResponse(
                    $@"Used to set the minimum level of debug messages to be printed to the console:
{_logLevels[0]} = 0
{_logLevels[1]} = 1
{_logLevels[2]} = 2
{_logLevels[3]} = 3
{_logLevels[4]} = 4
{_logLevels[5]} = 5");
                    return;
                }

                if (string.IsNullOrEmpty(levelString.Trim()))
                {
                    CrestronConsole.ConsoleCommandResponse("AppDebug level = {0}", _consoleLoggingLevelSwitch.MinimumLevel);
                    return;
                }

                if(int.TryParse(levelString, out var levelInt))
                {
                    if(levelInt < 0 || levelInt > 5)
                    {
                        CrestronConsole.ConsoleCommandResponse($"Error: Unable to parse {levelString} to valid log level. If using a number, value must be between 0-5");
                        return;
                    }
                    SetDebugLevel((uint) levelInt);
                    return;
                }

                if(Enum.TryParse<LogEventLevel>(levelString, out var levelEnum))
                {
                    SetDebugLevel(levelEnum);
                    return;
                }

                CrestronConsole.ConsoleCommandResponse($"Error: Unable to parse {levelString} to valid log level");
            }          
            catch
            {
                CrestronConsole.ConsoleCommandResponse("Usage: appdebug:P [0-5]");
            }
        }

        /// <summary>
        /// Sets the debug level
        /// </summary>
        /// <param name="level"> Valid values 0-5</param>
        public static void SetDebugLevel(uint level)
        {
            if(!_logLevels.TryGetValue(level, out var logLevel))
            {
                logLevel = LogEventLevel.Information;

                CrestronConsole.ConsoleCommandResponse($"{level} not valid. Setting level to {logLevel}");

                SetDebugLevel(logLevel);
            }

            SetDebugLevel(logLevel);
        }

        public static void SetDebugLevel(LogEventLevel level)
        {
            _consoleLoggingLevelSwitch.MinimumLevel = level;

            CrestronConsole.ConsoleCommandResponse("[Application {0}], Debug level set to {1}\r\n",
                InitialParametersClass.ApplicationNumber, _consoleLoggingLevelSwitch.MinimumLevel);

            CrestronConsole.ConsoleCommandResponse($"Storing level {level}:{(int) level}");

            var err = CrestronDataStoreStatic.SetLocalIntValue(LevelStoreKey, (int) level);

            CrestronConsole.ConsoleCommandResponse($"Store result: {err}:{(int)level}");

            if (err != CrestronDataStore.CDS_ERROR.CDS_SUCCESS)
                CrestronConsole.PrintLine($"Error saving console debug level setting: {err}");
        }

        public static void SetWebSocketMinimumDebugLevel(LogEventLevel level)
        {
            _websocketLoggingLevelSwitch.MinimumLevel = level;            

            var err = CrestronDataStoreStatic.SetLocalUintValue(WebSocketLevelStoreKey, (uint) level);

            if (err != CrestronDataStore.CDS_ERROR.CDS_SUCCESS)
                LogMessage(LogEventLevel.Information, "Error saving websocket debug level setting: {erro}", err);

            LogMessage(LogEventLevel.Information, "Websocket debug level set to {0}", _websocketLoggingLevelSwitch.MinimumLevel);
        }

        public static void SetErrorLogMinimumDebugLevel(LogEventLevel level)
        {
            _errorLogLevelSwitch.MinimumLevel = level;

            var err = CrestronDataStoreStatic.SetLocalUintValue(ErrorLogLevelStoreKey, (uint)level);

            if (err != CrestronDataStore.CDS_ERROR.CDS_SUCCESS)
                LogMessage(LogEventLevel.Information, "Error saving Error Log debug level setting: {error}", err);

            LogMessage(LogEventLevel.Information, "Error log debug level set to {0}", _websocketLoggingLevelSwitch.MinimumLevel);
        }

        public static void SetFileMinimumDebugLevel(LogEventLevel level)
        {
            _errorLogLevelSwitch.MinimumLevel = level;

            var err = CrestronDataStoreStatic.SetLocalUintValue(ErrorLogLevelStoreKey, (uint)level);

            if (err != CrestronDataStore.CDS_ERROR.CDS_SUCCESS)
                LogMessage(LogEventLevel.Information, "Error saving File debug level setting: {error}", err);

            LogMessage(LogEventLevel.Information, "File debug level set to {0}", _websocketLoggingLevelSwitch.MinimumLevel);
        }

        /// <summary>
        /// Callback for console command
        /// </summary>
        /// <param name="stateString"></param>
        public static void SetDoNotLoadOnNextBootFromConsole(string stateString)
        {
            try
            {
                if (string.IsNullOrEmpty(stateString.Trim()))
                {
                    CrestronConsole.ConsoleCommandResponse("DoNotLoadOnNextBoot = {0}", DoNotLoadConfigOnNextBoot);
                    return;
                }

                SetDoNotLoadConfigOnNextBoot(bool.Parse(stateString));
            }
            catch
            {
                CrestronConsole.ConsoleCommandResponse("Usage: donotloadonnextboot:P [true/false]");
            }
        }

        /// <summary>
        /// Callback for console command
        /// </summary>
        /// <param name="items"></param>
		public static void SetDebugFilterFromConsole(string items)
		{
			var str = items.Trim();
			if (str == "?")
			{
				CrestronConsole.ConsoleCommandResponse("Usage:\r APPDEBUGFILTER key1 key2 key3....\r " +
					"+all: at beginning puts filter into 'default include' mode\r" +
					"      All keys that follow will be excluded from output.\r" +
					"-all: at beginning puts filter into 'default exclude all' mode.\r" +
					"      All keys that follow will be the only keys that are shown\r" +
					"+nokey: Enables messages with no key (default)\r" +
					"-nokey: Disables messages with no key.\r" +
					"(nokey settings are independent of all other settings)");
				return;
			}
			var keys = Regex.Split(str, @"\s*");
			foreach (var keyToken in keys)
			{
				var lkey = keyToken.ToLower();
				if (lkey == "+all")
				{
					IncludedExcludedKeys.Clear();
					_excludeAllMode = false;
				}
				else if (lkey == "-all")
				{
					IncludedExcludedKeys.Clear();
					_excludeAllMode = true;
				}
				//else if (lkey == "+nokey")
				//{
				//    ExcludeNoKeyMessages = false;
				//}
				//else if (lkey == "-nokey")
				//{
				//    ExcludeNoKeyMessages = true;
				//}
				else
				{
					string key;
					if (lkey.StartsWith("-"))
					{
						key = lkey.Substring(1);
						// if in exclude all mode, we need to remove this from the inclusions
						if (_excludeAllMode)
						{
							if (IncludedExcludedKeys.ContainsKey(key))
								IncludedExcludedKeys.Remove(key);
						}
						// otherwise include all mode, add to the exclusions
						else
						{
							IncludedExcludedKeys[key] = new object();
						}
					}
					else if (lkey.StartsWith("+"))
					{
						key = lkey.Substring(1);
						// if in exclude all mode, we need to add this as inclusion
						if (_excludeAllMode)
						{

							IncludedExcludedKeys[key] = new object();
						}
						// otherwise include all mode, remove this from exclusions
						else
						{
							if (IncludedExcludedKeys.ContainsKey(key))
								IncludedExcludedKeys.Remove(key);
						}
					}
				}
			}
		}




        /// <summary>
        /// sets the settings for a device or creates a new entry
        /// </summary>
        /// <param name="deviceKey"></param>
        /// <param name="settings"></param>
        /// <returns></returns>
        public static void SetDeviceDebugSettings(string deviceKey, object settings)
        {
            _contexts.SetDebugSettingsForKey(deviceKey, settings);
            SaveMemoryOnTimeout();
        }

        /// <summary>
        /// Gets the device settings for a device by key or returns null
        /// </summary>
        /// <param name="deviceKey"></param>
        /// <returns></returns>
        public static object GetDeviceDebugSettingsForKey(string deviceKey)
        {
            return _contexts.GetDebugSettingsForKey(deviceKey);
        }  

        /// <summary>
        /// Sets the flag to prevent application starting on next boot
        /// </summary>
        /// <param name="state"></param>
        public static void SetDoNotLoadConfigOnNextBoot(bool state)
        {
            DoNotLoadConfigOnNextBoot = state;
            _contexts.GetOrCreateItem("DEFAULT").DoNotLoadOnNextBoot = state;
            SaveMemoryOnTimeout();

            CrestronConsole.ConsoleCommandResponse("[Application {0}], Do Not Load Config on Next Boot set to {1}",
                InitialParametersClass.ApplicationNumber, DoNotLoadConfigOnNextBoot);
        }

        /// <summary>
        /// 
        /// </summary>
        public static void ShowDebugLog(string s)
        {
            var loglist = CrestronLogger.PrintTheLog(s.ToLower() == "all");
            foreach (var l in loglist)
                CrestronConsole.ConsoleCommandResponse(l + CrestronEnvironment.NewLine);
        }

        /// <summary>
        /// Log an Exception using Serilog's default Exception logging mechanism
        /// </summary>
        /// <param name="ex">Exception to log</param>
        /// <param name="message">Message template</param>
        /// <param name="device">Optional IKeyed device. If provided, the Key of the device will be added to the log message</param>
        /// <param name="args">Args to put into message template</param>
        public static void LogMessage(Exception ex, string message, IKeyed device = null, params object[] args)
        {
            using (LogContext.PushProperty("Key", device?.Key))
            {
                _logger.Error(ex, message, args);
            }
        }

        /// <summary>
        /// Log a message
        /// </summary>
        /// <param name="level">Level to log at</param>
        /// <param name="message">Message template</param>
        /// <param name="device">Optional IKeyed device. If provided, the Key of the device will be added to the log message</param>
        /// <param name="args">Args to put into message template</param>
        public static void LogMessage(LogEventLevel level, string message, IKeyed device=null, params object[] args)
        {
            using (LogContext.PushProperty("Key", device?.Key))
            {
                _logger.Write(level, message, args);
            }
        }

        public static void LogMessage(LogEventLevel level, string message, params object[] args)
        {
            LogMessage(level, message, null, args);
        }

        public static void LogMessage(LogEventLevel level, IKeyed keyed, string message, params object[] args)
        {
            LogMessage(level, message, keyed, args);
        }


        private static void LogMessage(uint level, string format, params object[] items)
        {
            if (!_logLevels.ContainsKey(level)) return;

            var logLevel = _logLevels[level];
            
            LogMessage(logLevel, format, items);
        }

        private static void LogMessage(uint level, IKeyed keyed, string format, params object[] items)
        {
            if (!_logLevels.ContainsKey(level)) return;

            var logLevel = _logLevels[level];

            LogMessage(logLevel, keyed, format, items);
        }


        /// <summary>
        /// Prints message to console if current debug level is equal to or higher than the level of this message.
        /// Uses CrestronConsole.PrintLine.
        /// </summary>
        /// <param name="level"></param>
        /// <param name="format">Console format string</param>
        /// <param name="items">Object parameters</param>
        [Obsolete("Use LogMessage methods")]
        public static void Console(uint level, string format, params object[] items)
        {

            LogMessage(level, format, items);

            if (CrestronEnvironment.DevicePlatform == eDevicePlatform.Server)
            {
                var logString = string.Format("[level {0}] {1}", level, string.Format(format, items));

                LogError(ErrorLogLevel.Notice, logString);
                return;
            }

            //if (IsRunningOnAppliance)
            //{
            //    CrestronConsole.PrintLine("[{0}]App {1} Lvl {2}:{3}", DateTime.Now.ToString("HH:mm:ss.fff"),
            //        InitialParametersClass.ApplicationNumber,
            //        level,
            //        string.Format(format, items));
            //}
        }

        /// <summary>
		/// Logs to Console when at-level, and all messages to error log, including device key			
        /// </summary>
        [Obsolete("Use LogMessage methods")]
        public static void Console(uint level, IKeyed dev, string format, params object[] items)
        {
            LogMessage(level, dev, format, items);

            //if (Level >= level)
            //    Console(level, "[{0}] {1}", dev.Key, message);
        }

        /// <summary>
        /// Prints message to console if current debug level is equal to or higher than the level of this message. Always sends message to Error Log.
        /// Uses CrestronConsole.PrintLine.
        /// </summary>
        [Obsolete("Use LogMessage methods")]
        public static void Console(uint level, IKeyed dev, ErrorLogLevel errorLogLevel,
            string format, params object[] items)
        {           
            LogMessage(level, dev, format, items);
        }

        /// <summary>
        /// Logs to Console when at-level, and all messages to error log
        /// </summary>
        [Obsolete("Use LogMessage methods")]
        public static void Console(uint level, ErrorLogLevel errorLogLevel,
            string format, params object[] items)
        {
            LogMessage(level, format, items);
        }

        /// <summary>
        /// Logs to both console and the custom user log (not the built-in error log). If appdebug level is set at
        /// or above the level provided, then the output will be written to both console and the log. Otherwise
        /// it will only be written to the log.
        /// </summary>
        [Obsolete("Use LogMessage methods")]
        public static void ConsoleWithLog(uint level, string format, params object[] items)
        {
            LogMessage(level, format, items);

            // var str = string.Format(format, items);
            //if (Level >= level)
            //    CrestronConsole.PrintLine("App {0}:{1}", InitialParametersClass.ApplicationNumber, str);
            // CrestronLogger.WriteToLog(str, level);
        }

        /// <summary>
        /// Logs to both console and the custom user log (not the built-in error log). If appdebug level is set at
        /// or above the level provided, then the output will be written to both console and the log. Otherwise
        /// it will only be written to the log.
        /// </summary>
        [Obsolete("Use LogMessage methods")]
        public static void ConsoleWithLog(uint level, IKeyed dev, string format, params object[] items)
        {
            LogMessage(level, dev, format, items);

            // var str = string.Format(format, items);
            // CrestronLogger.WriteToLog(string.Format("[{0}] {1}", dev.Key, str), level);
        }

        /// <summary>
        /// Prints to log and error log
        /// </summary>
        /// <param name="errorLogLevel"></param>
        /// <param name="str"></param>
        [Obsolete("Use LogMessage methods")]
        public static void LogError(ErrorLogLevel errorLogLevel, string str)
        {
            switch (errorLogLevel)
            {
                case ErrorLogLevel.Error:
                    LogMessage(LogEventLevel.Error, str);
                    break;
                case ErrorLogLevel.Warning:
                    LogMessage(LogEventLevel.Warning, str);
                    break;
                case ErrorLogLevel.Notice:
                    LogMessage(LogEventLevel.Information, str);
                    break;
            }
        }

        /// <summary>
        /// Writes the memory object after timeout
        /// </summary>
        static void SaveMemoryOnTimeout()
        {
            Console(0, "Saving debug settings");
            if (_saveTimer == null)
                _saveTimer = new CTimer(o =>
                {
                    _saveTimer = null;
                    SaveMemory();
                }, SaveTimeoutMs);
            else
                _saveTimer.Reset(SaveTimeoutMs);
        }

        /// <summary>
        /// Writes the memory - use SaveMemoryOnTimeout
        /// </summary>
        static void SaveMemory()
        {
            //var dir = @"\NVRAM\debug";
            //if (!Directory.Exists(dir))
            //    Directory.Create(dir);

            var fileName = GetMemoryFileName();

            Console(0, ErrorLogLevel.Notice, "Loading debug settings file from {0}", fileName);

            using (var sw = new StreamWriter(fileName))
            {
                var json = JsonConvert.SerializeObject(_contexts);
                sw.Write(json);
                sw.Flush();
            }
        }

        /// <summary>
        /// 
        /// </summary>
        static void LoadMemory()
        {
            var file = GetMemoryFileName();
            if (File.Exists(file))
            {
                using (var sr = new StreamReader(file))
                {
                    var json = sr.ReadToEnd();
                    _contexts = JsonConvert.DeserializeObject<DebugContextCollection>(json);

                    if (_contexts != null)
                    {
                        Console(1, "Debug memory restored from file");
                        return;
                    }
                }
            }

            _contexts = new DebugContextCollection();
        }

        /// <summary>
        /// Helper to get the file path for this app's debug memory
        /// </summary>
        static string GetMemoryFileName()
        {
            if (CrestronEnvironment.DevicePlatform == eDevicePlatform.Appliance)
            {
                // CheckForMigration();
                return string.Format(@"\user\debugSettings\program{0}", InitialParametersClass.ApplicationNumber);
            }

            return string.Format("{0}{1}user{1}debugSettings{1}{2}.json",Directory.GetApplicationRootDirectory(), Path.DirectorySeparatorChar, InitialParametersClass.RoomId);
        }

        private static void CheckForMigration()
        {
            var oldFilePath = String.Format(@"\nvram\debugSettings\program{0}", InitialParametersClass.ApplicationNumber);
            var newFilePath = String.Format(@"\user\debugSettings\program{0}", InitialParametersClass.ApplicationNumber);

            //check for file at old path
            if (!File.Exists(oldFilePath))
            {
                Console(0, ErrorLogLevel.Notice,
                    String.Format(
                        @"Debug settings file migration not necessary. Using file at \user\debugSettings\program{0}",
                        InitialParametersClass.ApplicationNumber));

                return;
            }

            //create the new directory if it doesn't already exist
            if (!Directory.Exists(@"\user\debugSettings"))
            {
                Directory.CreateDirectory(@"\user\debugSettings");
            }

            Console(0, ErrorLogLevel.Notice,
                String.Format(
                    @"File found at \nvram\debugSettings\program{0}. Migrating to \user\debugSettings\program{0}", InitialParametersClass.ApplicationNumber));

            //Copy file from old path to new path, then delete it. This will overwrite the existing file
            File.Copy(oldFilePath, newFilePath, true);
            File.Delete(oldFilePath);

            //Check if the old directory is empty, then delete it if it is
            if (Directory.GetFiles(@"\nvram\debugSettings").Length > 0)
            {
                return;
            }

            Directory.Delete(@"\nvram\debugSettings");
        }

        /// <summary>
        /// Error level to for message to be logged at
        /// </summary>
        public enum ErrorLogLevel
        {
            /// <summary>
            /// Error
            /// </summary>
            Error, 
            /// <summary>
            /// Warning
            /// </summary>
            Warning, 
            /// <summary>
            /// Notice
            /// </summary>
            Notice, 
            /// <summary>
            /// None
            /// </summary>
            None,
        }
    }
}