using System.IO.Compression;
using System.IO.Ports;
using System.Text;
using System.Text.Json;

using Flurl.Http;

using System.Reactive.Linq;
using System.Reactive.Threading.Tasks;

using InnovEnergy.Lib.Devices.Sinexcel_12K_TL;
using InnovEnergy.App.SinexcelCommunication.DataLogging;
using InnovEnergy.App.SinexcelCommunication.ESS;
using InnovEnergy.App.SinexcelCommunication.MiddlewareClasses;
using InnovEnergy.App.SinexcelCommunication.SystemConfig;
using InnovEnergy.Lib.Protocols.Modbus.Channels;
using InnovEnergy.App.SinexcelCommunication.DataTypes;

using InnovEnergy.Lib.Units;
using InnovEnergy.Lib.Utils;

using Newtonsoft.Json;
using Formatting = Newtonsoft.Json.Formatting;
using JsonSerializer = System.Text.Json.JsonSerializer;
using static InnovEnergy.App.SinexcelCommunication.MiddlewareClasses.MiddlewareAgent;
using System.Diagnostics.CodeAnalysis;
using InnovEnergy.Lib.Devices.Sinexcel_12K_TL.DataType;
using InnovEnergy.Lib.Protocols.Modbus.Protocol;
using static InnovEnergy.Lib.Devices.Sinexcel_12K_TL.DataType.WorkingMode;

#pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring as nullable.

namespace InnovEnergy.App.SinexcelCommunication;

[SuppressMessage("Trimming", "IL2026:Members annotated with \'RequiresUnreferencedCodeAttribute\' require dynamic access otherwise can break functionality when trimming application code")]
internal static class Program
{
    private static readonly TimeSpan UpdateInterval = TimeSpan.FromSeconds(5);
    private const  UInt16   NbrOfFileToConcatenate  = 15; // add this to config file
    private static UInt16   _fileCounter            = 0; 
    private static Channel  _sinexcelChannel1;
    private static Channel  _sinexcelChannel2;

    private static readonly String      SwVersionNumber                 = " V1.00." + DateTime.Today;
    private const  String               VpnServerIp                     = "10.2.0.11";
    private static Boolean             _subscribedToQueue               = false;
    private static Boolean             _subscribeToQueueForTheFirstTime = false;
    private static SodistoreAlarmState _prevSodiohomeAlarmState         = SodistoreAlarmState.Green;
    private static SodistoreAlarmState _sodiohomeAlarmState             = SodistoreAlarmState.Green;
    
    // Tracking for error/warning content changes
    private static List<String>        _prevErrorCodes                  = new List<String>();
    private static List<String>        _prevWarningCodes                = new List<String>();
    
    // Heartbeat tracking
    private static DateTime            _lastHeartbeatTime               = DateTime.MinValue;
    private const  Int32               HeartbeatIntervalSeconds         = 60;

    
    // move all this to config file
    private const String Port1     = "/dev/ttyUSB0"; 
    private const String Port2     = "/dev/ttyUSB1"; 
    private const Byte   SlaveId  = 1;
    private const Parity Parity   = 0; //none
    private const Int32  StopBits = 1;
    private const Int32  BaudRate = 115200;
    private const Int32  DataBits = 8;

    public static async Task Main(String[] args)
    {
        _sinexcelChannel1 = new SerialPortChannel(Port1, BaudRate, Parity, DataBits, StopBits);
        _sinexcelChannel2 = new SerialPortChannel(Port2, BaudRate, Parity, DataBits, StopBits);

        InitializeCommunicationToMiddleware();
        while (true)
        {
            try
            {
                await Run();
            }
            catch (Exception e)
            {
                e.WriteLine();
            }
        }     
        // ReSharper disable once FunctionNeverReturns
    }
    
    private static async Task Run()
    {
        Watchdog.NotifyReady();

        Console.WriteLine("Starting Sinexcel Communication, SW Version : " + SwVersionNumber);

        var sinexcelDevice1 = new SinexcelDevice(_sinexcelChannel1, SlaveId);
        var sinexcelDevice2 = new SinexcelDevice(_sinexcelChannel2, SlaveId);

        StatusRecord? ReadStatus()
        {
            var config         = Config.Load();
            var sinexcelRecord1 = sinexcelDevice1.Read();
            var sinexcelRecord2 = sinexcelDevice2.Read();


            return new StatusRecord
            {
                InverterRecord1 = sinexcelRecord1,
                InverterRecord2 = sinexcelRecord2,
                Config         = config // load from disk every iteration, so config can be changed while running
            };
        }

        while (true)
        {
            await Observable
                .Interval(UpdateInterval)
                .Select(_ => RunIteration())
                .SelectMany(status =>
                    DataLogging(status, DateTime.Now.Round(UpdateInterval))
                        .ContinueWith(_ => status)) // back to StatusRecord
                .SelectMany(SaveModbusTcpFile)
                .SelectError()
                .ToTask();
        }
        
        StatusRecord? RunIteration()
        {
            try
            {
                Watchdog.NotifyAlive();
                
                var startTime = DateTime.Now;
                Console.WriteLine("***************************** Reading  Battery Data  *********************************************");
                Console.WriteLine(startTime.ToString("HH:mm:ss.fff ")+ "Start Reading");
                                
                // the order matter of the next three lines
                var statusrecord = ReadStatus();
                if (statusrecord == null)
                    return null;
                
                Console.WriteLine(" ************************************************ Inverter 1 ************************************************ ");
                Console.WriteLine( statusrecord.InverterRecord1.SystemDateTime + "   SystemDateTime ");
                     
                Console.WriteLine( statusrecord.InverterRecord1.TotalPhotovoltaicPower + "   TotalPhotovoltaicPower ");
                Console.WriteLine( statusrecord.InverterRecord1.TotalBatteryPower      + "   TotalBatteryPower ");
                Console.WriteLine( statusrecord.InverterRecord1.TotalLoadPower         + "   TotalLoadPower ");
                Console.WriteLine( statusrecord.InverterRecord1.TotalGridPower + "   TotalGridPower ");
                
               
                Console.WriteLine( statusrecord.InverterRecord1.Battery1Power + "   Battery1Power ");
                Console.WriteLine( statusrecord.InverterRecord1.Battery1Soc   + "   Battery1Soc ");
                Console.WriteLine( statusrecord.InverterRecord1.Battery1BackupSoc + "   Battery1BackupSoc ");
                Console.WriteLine( statusrecord.InverterRecord1.Battery1MinSoc + "   Battery1MinSoc ");

                Console.WriteLine( statusrecord.InverterRecord1.Battery2Power + "   Battery2Power ");
                Console.WriteLine( statusrecord.InverterRecord1.Battery2Soc   + "   Battery2Soc ");
                Console.WriteLine( statusrecord.InverterRecord1.Battery2BackupSoc + "   Battery2BackupSoc ");
                Console.WriteLine( statusrecord.InverterRecord1.Battery2MinSoc + "   Battery2MinSoc ");
         
                Console.WriteLine( statusrecord.InverterRecord1.EnableGridExport + "   EnableGridExport ");
                Console.WriteLine( statusrecord.InverterRecord1.PowerGridExportLimit + "   PowerGridExportLimit ");
                
                Console.WriteLine( statusrecord.InverterRecord1.PowerOn + "   PowerOn ");
                Console.WriteLine( statusrecord.InverterRecord1.PowerOff + "   PowerOff ");

                
                Console.WriteLine( statusrecord.InverterRecord1.WorkingMode + "   WorkingMode ");
                
                Console.WriteLine( statusrecord.InverterRecord1.GridSwitchMethod + "   GridSwitchMethod ");

                Console.WriteLine( statusrecord.InverterRecord1.ThreePhaseWireSystem + "   ThreePhaseWireSystem ");
                
                Console.WriteLine(" ************************************************ Inverter 2 ************************************************ ");
                
                Console.WriteLine( statusrecord.InverterRecord2.SystemDateTime + "   SystemDateTime ");
                Console.WriteLine( statusrecord.InverterRecord2.TotalPhotovoltaicPower + "   TotalPhotovoltaicPower ");
                Console.WriteLine( statusrecord.InverterRecord2.TotalBatteryPower      + "   TotalBatteryPower ");
                Console.WriteLine( statusrecord.InverterRecord2.TotalLoadPower         + "   TotalLoadPower ");
                Console.WriteLine( statusrecord.InverterRecord2.TotalGridPower + "   TotalGridPower ");
                Console.WriteLine( statusrecord.InverterRecord2.Battery1Power + "   Battery1Power ");
                Console.WriteLine( statusrecord.InverterRecord2.Battery1Soc   + "   Battery1Soc ");
                Console.WriteLine( statusrecord.InverterRecord2.Battery1BackupSoc + "   Battery1BackupSoc ");
                Console.WriteLine( statusrecord.InverterRecord2.Battery1MinSoc + "   Battery1MinSoc ");
                Console.WriteLine( statusrecord.InverterRecord2.Battery2Power + "   Battery2Power ");
                Console.WriteLine( statusrecord.InverterRecord2.Battery2Soc   + "   Battery2Soc ");
                Console.WriteLine( statusrecord.InverterRecord2.Battery2BackupSoc + "   Battery2BackupSoc ");
                Console.WriteLine( statusrecord.InverterRecord2.Battery2MinSoc + "   Battery2MinSoc ");

                Console.WriteLine( statusrecord.InverterRecord2.EnableGridExport + "   EnableGridExport ");
                Console.WriteLine( statusrecord.InverterRecord2.PowerGridExportLimit + "   PowerGridExportLimit ");
                Console.WriteLine( statusrecord.InverterRecord2.PowerOn + "   PowerOn ");
                Console.WriteLine( statusrecord.InverterRecord2.PowerOff + "   PowerOff ");
                Console.WriteLine( statusrecord.InverterRecord2.WorkingMode + "   WorkingMode ");
                Console.WriteLine( statusrecord.InverterRecord2.GridSwitchMethod + "   GridSwitchMethod ");
                Console.WriteLine( statusrecord.InverterRecord2.ThreePhaseWireSystem + "   ThreePhaseWireSystem ");
                /*       
                Console.WriteLine( statusrecord.InverterRecord1.RepetitiveWeeks + "   RepetitiveWeeks ");
                Console.WriteLine( statusrecord.InverterRecord1.EffectiveStartDate + "   EffectiveStartDate ");
                Console.WriteLine( statusrecord.InverterRecord1.EffectiveEndDate + "   EffectiveEndDate ");
                Console.WriteLine( statusrecord.InverterRecord1.ChargingPowerPeriod1 + "   ChargingPowerPeriod1 ");
                Console.WriteLine( statusrecord.InverterRecord1.DishargingPowerPeriod1 + "   dischargingPowerPeriod1 ");
                Console.WriteLine( statusrecord.InverterRecord1.ChargeStartTimePeriod1 + "   ChargeStartTimePeriod1 ");
                Console.WriteLine( statusrecord.InverterRecord1.ChargeEndTimePeriod1 + "   ChargeEndTimePeriod1 ");

                Console.WriteLine( statusrecord.InverterRecord1.DischargeStartTimePeriod1 + "   DischargeStartTimePeriod1 ");
                Console.WriteLine( statusrecord.InverterRecord1.DischargeEndTimePeriod1 + "   DischargeEndTimePeriod1 ");*/
            
               SendSalimaxStateAlarm(GetSodiHomeStateAlarm(statusrecord),statusrecord);
               statusrecord.ControlConstants();

                Console.WriteLine( " ************************************ We are writing ************************************");
                var startWritingTime            = DateTime.Now;
                Console.WriteLine(startWritingTime.ToString("HH:mm:ss.fff  ") +"start Writing");
                statusrecord?.Config.Save(); // save the config file
                
                if (statusrecord is { Config.ControlPermission: true })
                {
                    Console.WriteLine(" We have the Right to Write");
                    sinexcelDevice1.Write(statusrecord.InverterRecord1);
                    sinexcelDevice2.Write(statusrecord.InverterRecord2);

                }
                else
                {
                    Console.WriteLine(" Nooooooo We cant' have the Right to Write");
                }

                return statusrecord;
            }
            catch (CrcException e)
            {
                Console.WriteLine(e);
                throw; // restart only on CRC
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                return null; // keep running for non-critical errors
            }
        }
    }

    private static void ControlConstants(this StatusRecord? statusrecord)
    {
        if (statusrecord == null) return;
        
        statusrecord.InverterRecord1.Battery1BackupSoc          = (Single)statusrecord.Config.MinSoc  ;
        statusrecord.InverterRecord1.Battery2BackupSoc          = (Single)statusrecord.Config.MinSoc  ;
        statusrecord.InverterRecord1.RepetitiveWeeks            = SinexcelWeekDays.All;


        var isChargePeriod = IsNowInsideDateAndTime(statusrecord.Config.StartTimeChargeandDischargeDayandTime, statusrecord.Config.StopTimeChargeandDischargeDayandTime);

        
        Console.WriteLine("Are we inside the charge/Discharge time " + isChargePeriod);

        if (statusrecord.Config.OperatingPriority != TimeChargeDischarge)
        {
            statusrecord.InverterRecord1.WorkingMode                = statusrecord.Config.OperatingPriority;
        }
        else if (statusrecord.Config.OperatingPriority             == TimeChargeDischarge && isChargePeriod)
        {
            statusrecord.InverterRecord1.WorkingMode                = statusrecord.Config.OperatingPriority;

            if (statusrecord.Config.TimeChargeandDischargePower > 0)
            {
                statusrecord.InverterRecord1.EffectiveStartDate         = statusrecord.Config.StartTimeChargeandDischargeDayandTime.Date; 
                statusrecord.InverterRecord1.EffectiveEndDate           = statusrecord.Config.StopTimeChargeandDischargeDayandTime.Date;
                statusrecord.InverterRecord1.ChargingPowerPeriod1       = Math.Abs(statusrecord.Config.TimeChargeandDischargePower);
                statusrecord.InverterRecord1.ChargeStartTimePeriod1     = statusrecord.Config.StartTimeChargeandDischargeDayandTime.TimeOfDay; 
                statusrecord.InverterRecord1.ChargeEndTimePeriod1       = statusrecord.Config.StopTimeChargeandDischargeDayandTime.TimeOfDay;
                    
                statusrecord.InverterRecord1.DischargeStartTimePeriod1  = TimeSpan.Zero; 
                statusrecord.InverterRecord1.DischargeEndTimePeriod1    = TimeSpan.Zero;
            }
            else
            {
                statusrecord.InverterRecord1.EffectiveStartDate         = statusrecord.Config.StartTimeChargeandDischargeDayandTime.Date;
                statusrecord.InverterRecord1.EffectiveEndDate           = statusrecord.Config.StopTimeChargeandDischargeDayandTime.Date;
                statusrecord.InverterRecord1.DishargingPowerPeriod1     = Math.Abs(statusrecord.Config.TimeChargeandDischargePower);
                statusrecord.InverterRecord1.DischargeStartTimePeriod1  = statusrecord.Config.StartTimeChargeandDischargeDayandTime.TimeOfDay; 
                statusrecord.InverterRecord1.DischargeEndTimePeriod1    = statusrecord.Config.StopTimeChargeandDischargeDayandTime.TimeOfDay;
                    
                statusrecord.InverterRecord1.ChargeStartTimePeriod1  = TimeSpan.Zero; 
                statusrecord.InverterRecord1.ChargeEndTimePeriod1    = TimeSpan.Zero;
            }
            
        }
        else
        {
            statusrecord.InverterRecord1.WorkingMode                = SpontaneousSelfUse;
        }
        statusrecord.InverterRecord1.PowerOn                    = 1;
        statusrecord.InverterRecord1.PowerOff                   = 0;
        //statusrecord.InverterRecord.FaultClearing              = 1;
    }
    
    private static bool IsNowInsideDateAndTime(DateTime effectiveStart, DateTime effectiveEnd)
    {
        DateTime now = DateTime.Now;

        // Date check
        if (now < effectiveStart || now > effectiveEnd)
            return false;

        return true;
    }


    private static StatusMessage GetSodiHomeStateAlarm(StatusRecord? record)
    {
        var s3Bucket    = Config.Load().S3?.Bucket;

       var alarmList    = new List<AlarmOrWarning>();
       var warningList  = new List<AlarmOrWarning>();
/*
       if (record.SinexcelRecord.WorkingMode == GrowattSystemStatus.Fault)
       {
           if (record.AcDcGrowatt.FaultMainCode != 0)
           {
               alarmList.Add(new AlarmOrWarning
               {
                   Date        = DateTime.Now.ToString("yyyy-MM-dd"),
                   Time        = DateTime.Now.ToString("HH:mm:ss"),
                   CreatedBy   = "Growatt Inverter",
                   Description =  record.AcDcGrowatt.WarningMainCode.ToString(),  // to add the sub code
               });
           }

           if (record.AcDcGrowatt.WarningMainCode != 0)
           {
               warningList.Add(new AlarmOrWarning
               {
                   Date        = DateTime.Now.ToString("yyyy-MM-dd"),
                   Time        = DateTime.Now.ToString("HH:mm:ss"),
                   CreatedBy   = "Growatt inverter",
                   Description = record.AcDcGrowatt.FaultMainCode.ToString(), //to add the sub code
               });
           }
       }*/
      
       _sodiohomeAlarmState = warningList.Any()
            ? SodistoreAlarmState.Orange
            : SodistoreAlarmState.Green; // this will be replaced by LedState

       _sodiohomeAlarmState = alarmList.Any()
            ? SodistoreAlarmState.Red
            : _sodiohomeAlarmState; // this will be replaced by LedState

        var installationId = GetInstallationId(s3Bucket ?? string.Empty);

        var returnedStatus = new StatusMessage
        {
            InstallationId = installationId,
            Product        = 2,
            Status         = _sodiohomeAlarmState,
            Type           = MessageType.AlarmOrWarning,
            Alarms         = alarmList,
            Warnings       = warningList
        };

        return returnedStatus; 
    }
    
    /// <summary>
    /// Checks if the error or warning content has changed compared to the previous state.
    /// This allows detection of new/cleared errors even when the overall alarm state (Red/Orange/Green) remains the same.
    /// </summary>
    private static Boolean HasErrorsOrWarningsChanged(StatusMessage currentState)
    {
        // Get current error codes (descriptions)
        var currentErrors = currentState.Alarms?
            .Select(a => a.Description ?? String.Empty)
            .OrderBy(d => d)  // Sort for consistent comparison
            .ToList() ?? new List<String>();

        // Get current warning codes (descriptions)
        var currentWarnings = currentState.Warnings?
            .Select(w => w.Description ?? String.Empty)
            .OrderBy(d => d)  // Sort for consistent comparison
            .ToList() ?? new List<String>();

        // Check if lists have changed (new items added or existing items removed)
        var errorsChanged = !currentErrors.SequenceEqual(_prevErrorCodes);
        var warningsChanged = !currentWarnings.SequenceEqual(_prevWarningCodes);

        // Update tracking if changes detected
        if (errorsChanged || warningsChanged)
        {
            Console.WriteLine($"Error/Warning content changed:");
            Console.WriteLine($"  Errors: {String.Join(", ", currentErrors)} (was: {String.Join(", ", _prevErrorCodes)})");
            Console.WriteLine($"  Warnings: {String.Join(", ", currentWarnings)} (was: {String.Join(", ", _prevWarningCodes)})");

            _prevErrorCodes = currentErrors;
            _prevWarningCodes = currentWarnings;
            return true;
        }

        return false;
    }
    
    private static Int32 GetInstallationId(String s3Bucket)
    {
        var part = s3Bucket.Split('-').FirstOrDefault();
        return int.TryParse(part, out var id) ? id : 0; // is 0 a default safe value? check with Marios
    }
    
    private static void SendSalimaxStateAlarm(StatusMessage currentSalimaxState, StatusRecord? record)
    {
        var s3Bucket = Config.Load().S3?.Bucket;
        var subscribedNow = false;
        
        //When the controller boots, it tries to subscribe to the queue
        if (_subscribeToQueueForTheFirstTime == false)
        {
            subscribedNow = true;
            _subscribeToQueueForTheFirstTime = true;
            _prevSodiohomeAlarmState = currentSalimaxState.Status;
            _subscribedToQueue = RabbitMqManager.SubscribeToQueue(currentSalimaxState, s3Bucket, VpnServerIp);
            _lastHeartbeatTime = DateTime.Now;  // Initialize heartbeat timer
        }

        // Check if we should send a message
        var stateChanged = currentSalimaxState.Status != _prevSodiohomeAlarmState;
        var contentChanged = HasErrorsOrWarningsChanged(currentSalimaxState);
        var needsHeartbeat = (DateTime.Now - _lastHeartbeatTime).TotalSeconds >= HeartbeatIntervalSeconds;
        Console.WriteLine($"subscribedNow={subscribedNow}");
        Console.WriteLine($"_subscribedToQueue={_subscribedToQueue}");
        Console.WriteLine($"stateChanged={stateChanged}");
        Console.WriteLine($"contentChanged={contentChanged}");
        Console.WriteLine($"needsHeartbeat={needsHeartbeat}");
        Console.WriteLine($"s3Bucket null? {s3Bucket == null}");

        if (s3Bucket == null)
        {
            Console.WriteLine("⚠ S3 bucket not configured. Skipping middleware send.");
            LogMiddlewareFailure(new Exception("S3 Bucket not configured"));
            return;
        }

        // Ensure connection FIRST
        if (!RabbitMqManager.EnsureConnected(currentSalimaxState, s3Bucket, VpnServerIp))
        {
            Console.WriteLine($"❌ RabbitMQ EnsureConnected FAILED at {DateTime.Now:HH:mm:ss.fff}");
            LogMiddlewareFailure(new Exception("EnsureConnected returned false"));
            return;
        }
        
        //If already subscribed to the queue and the status has been changed, update the queue
        if (!subscribedNow && (stateChanged || contentChanged || needsHeartbeat))
        {
            _prevSodiohomeAlarmState = currentSalimaxState.Status;
            
            // Set appropriate message type
            if (stateChanged || contentChanged)
            {
                currentSalimaxState.Type = MessageType.AlarmOrWarning;
                Console.WriteLine($"Sending AlarmOrWarning message - StateChanged: {stateChanged}, ContentChanged: {contentChanged}");
            }
            else if (needsHeartbeat)
            {
                currentSalimaxState.Type = MessageType.Heartbit;
                Console.WriteLine($"Sending Heartbeat message - {HeartbeatIntervalSeconds}s interval reached");
                _lastHeartbeatTime = DateTime.Now;
            }
            
            try
            {
                RabbitMqManager.InformMiddleware(currentSalimaxState);
                LogMiddlewareFailure(new Exception($"✅ Middleware message sent at {DateTime.Now:HH:mm:ss.fff}"));
            }
            catch (Exception ex)
            {
                Console.WriteLine($"❌ Failed to send middleware message: {ex.Message}");
                LogMiddlewareFailure(ex);
            }
        }

        //If there is an available message from the RabbitMQ Broker, apply the configuration file
        Configuration? config = SetConfigurationFile();
        if (config != null)
        {
            record.ApplyConfigFile(config);
        }
    }
    
    private static void LogMiddlewareFailure(Exception ex)
    {
        try
        {
            var logPath = "/home/inesco/SodiStoreHome/middleware_failures.log";

            var logEntry =
                $"[{DateTime.Now:yyyy-MM-dd HH:mm:ss.fff}]\n" +
                $"Exception: {ex.GetType().FullName}\n" +
                $"Message: {ex.Message}\n" +
                $"StackTrace:\n{ex.StackTrace}\n" +
                $"--------------------------------------------------\n";

            File.AppendAllText(logPath, logEntry);
        }
        catch
        {
            // Never allow logging to crash the service
        }
    }

    
    private static void ApplyConfigFile(this StatusRecord? status, Configuration? config)
    {
        if (config == null) return;
        if (status == null) return;

        status.Config.MinSoc                                 = config.MinimumSoC;
        status.Config.MaximumChargingCurrent                 = config.MaximumChargingCurrent;
        status.Config.MaximumDischargingCurrent              = config.MaximumDischargingCurrent; 
        status.Config.OperatingPriority                      = config.OperatingPriority;
        status.Config.BatteriesCount                         = config.BatteriesCount;
        status.Config.ClusterNumber                          = config.ClusterNumber;
        status.Config.StartTimeChargeandDischargeDayandTime  = config.StartTimeChargeandDischargeDayandTime; 
        status.Config.StopTimeChargeandDischargeDayandTime   = config.StopTimeChargeandDischargeDayandTime;
        status.Config.TimeChargeandDischargePower            = config.TimeChargeandDischargePower;

        status.Config.PvNumber                               = config.PvNumber;
        status.Config.ControlPermission                      = config.ControlPermission;

    }
    
     private static async Task<Boolean> SaveModbusTcpFile(StatusRecord status)
    {
        var modbusData = new Dictionary<String, UInt16>();
       
       // SYSTEM DATA
       var result1 = ConvertToModbusRegisters((status.Config.ModbusProtcolNumber * 10), "UInt16", 30001); // this to be updated to modbusTCP version
       var result2 = ConvertToModbusRegisters(status.InverterRecord1.SystemDateTime.ToUnixTime(), "UInt32", 30002);
        // SYSTEM DATA
       var result3 = ConvertToModbusRegisters(status.InverterRecord1.WorkingMode, "UInt16", 30004);

        // BATTERY SUMMARY (assuming single battery [0]) // this to be improved

        var result4  = ConvertToModbusRegisters((status.Config.BatteriesCount), "UInt16", 31000);
        var result8  = ConvertToModbusRegisters((status.InverterRecord1.Battery1Voltage.Value * 10), "UInt16", 31001);
        var result12 = ConvertToModbusRegisters((status.InverterRecord1.Battery2Voltage.Value * 10), "Int16", 31002);
        var result13 = ConvertToModbusRegisters((status.InverterRecord1.Battery1Current.Value * 10), "Int32", 31003);
        var result16 = ConvertToModbusRegisters((status.InverterRecord1.Battery2Current.Value * 10), "Int32", 31005);
        var result9  = ConvertToModbusRegisters((status.InverterRecord1.Battery1Soc.Value * 100), "UInt16", 31007);
        var result14 = ConvertToModbusRegisters((status.InverterRecord1.Battery2Soc.Value * 100), "UInt16", 31008);
        var result5  = ConvertToModbusRegisters((status.InverterRecord1.TotalBatteryPower.Value * 10), "Int32", 31009);

        var result7 = ConvertToModbusRegisters((status.InverterRecord1.Battery1BackupSoc * 100), "UInt16", 31011);
        var result20 = ConvertToModbusRegisters((status.InverterRecord1.Battery2BackupSoc * 100), "UInt16", 31012);
        var result15 = ConvertToModbusRegisters((status.InverterRecord1.Battery1Soh.Value * 100), "UInt16", 31013);
        var result26 = ConvertToModbusRegisters((status.InverterRecord1.Battery2Soh.Value * 100), "UInt16", 31014);
        var result21 = ConvertToModbusRegisters((status.InverterRecord1.Battery1MaxChargingCurrent  * 10), "UInt16", 31016);
        var result22 = ConvertToModbusRegisters((status.InverterRecord1.Battery1MaxDischargingCurrent * 10), "UInt16", 31017);

        var result18 = ConvertToModbusRegisters((status.InverterRecord1.PvTotalPower * 10), "UInt32", 32000);
        var result19 = ConvertToModbusRegisters((status.InverterRecord1.GridPower * 10), "Int32", 33000);
        var result23 = ConvertToModbusRegisters((status.InverterRecord1.GridVoltageFrequency * 10), "UInt16", 33002);
        
        var result24 = ConvertToModbusRegisters((status.InverterRecord1.WorkingMode), "UInt16", 34000);
        var result25 = ConvertToModbusRegisters((status.InverterRecord1.InverterActivePower * 10), "Int32", 34001);
        var result29 = ConvertToModbusRegisters((status.InverterRecord1.EnableGridExport ), "UInt16", 34003);
        var result27 = ConvertToModbusRegisters((status.InverterRecord1.PowerGridExportLimit ), "Int16", 34004);

        // Merge all results into one dictionary
        var allResults = new[]
        {
            result1, result2, result3, result4, result5, result23, result24, result25, result29, result27, result26, result7, result8, result9, result16, result20, result12, result13, result14, result15, result18, result19, result21, result22
        };
        
        foreach (var result in allResults)
        {
            foreach (var entry in result)
            {
                modbusData[entry.Key] = entry.Value;
            }
        }
        // Write to JSON
        var json = JsonSerializer.Serialize(modbusData, new JsonSerializerOptions { WriteIndented = true });
        await File.WriteAllTextAsync("/home/inesco/SodiStoreHome/ModbusTCP/modbus_tcp_data.json", json);

        //Console.WriteLine("JSON file written successfully.");
        //Console.WriteLine(json);
        var stopTime            = DateTime.Now;
        Console.WriteLine(stopTime.ToString("HH:mm:ss.fff" )+  " Finish the loop");
        return true;
    }
      
    private static Dictionary<string, ushort> ConvertToModbusRegisters(object value, string outputType, int startingAddress)
    {
        var regs = new Dictionary<string, ushort>(capacity: 2);
    
        switch (outputType)
        {
            case "UInt16":
            {
                regs[$"{startingAddress}"] = Convert.ToUInt16(value);
                break;
            }
    
            case "Int16":
            {
                short v = Convert.ToInt16(value);
                regs[$"{startingAddress}"] = unchecked((ushort)v); // reinterpret
                break;
            }
    
            case "UInt32":
            {
                uint v = Convert.ToUInt32(value);
                ushort hi = (ushort)(v >> 16);
                ushort lo = (ushort)(v & 0xFFFF);
                regs[$"{startingAddress}"]     = hi; // HIGH word first (Modbus standard)
                regs[$"{startingAddress + 1}"] = lo; // then LOW word
                break;
            }
    
            case "Int32":
            {
                int v = Convert.ToInt32(value);
                uint raw = unchecked((uint)v);       // bit-reinterpret
                ushort hi = (ushort)(raw >> 16);
                ushort lo = (ushort)(raw & 0xFFFF);
                regs[$"{startingAddress}"]     = hi; // HIGH word
                regs[$"{startingAddress + 1}"] = lo; // LOW word
                break;
            }
    
            case "Float": // IEEE-754 single
            {
                float f = Convert.ToSingle(value);
                // Convert to bytes, then to two big-endian 16-bit words
                var bytes = BitConverter.GetBytes(f); // little-endian on most platforms
                Array.Reverse(bytes);                 // to big-endian byte order
                ushort hi = (ushort)((bytes[0] << 8) | bytes[1]);
                ushort lo = (ushort)((bytes[2] << 8) | bytes[3]);
                regs[$"{startingAddress}"]     = hi;
                regs[$"{startingAddress + 1}"] = lo;
                break;
            }
    
            default:
                throw new ArgumentException($"Unsupported output type: {outputType}");
        }
    
        return regs;
    }

    
    private static async Task<Boolean> DataLogging(StatusRecord status, DateTime timeStamp)
    {
        var csv = status.ToCsv();
        
        // for debug, only to be deleted. 
        //foreach (var item in csv.SplitLines())
        //{
        //    Console.WriteLine(item + "");
        //}
        
        await SavingLocalCsvFile(timeStamp.ToUnixTime(), csv);

        var jsonData = new Dictionary<String, Object>();

        ConvertToJson(csv, jsonData).LogInfo();
        
        var s3Config = status.Config.S3;
        
        if (s3Config is null)
            return false;

        //Concatenating 15 files in one file 
        return await ConcatinatingAndCompressingFiles(timeStamp.ToUnixTime(), s3Config);
    }
    
    private static void InsertIntoJson(Dictionary<String, Object> jsonDict, String[] keys, String value)
    {
        var currentDict = jsonDict;
        for (Int16 i = 1; i < keys.Length; i++) // Start at 1 to skip empty root
        {
            var key = keys[i];
            if (!currentDict.ContainsKey(key))
            {
                currentDict[key] = new Dictionary<String, Object>();
            }

            if (i == keys.Length - 1) // Last key, store the value
            {
                
                if (!value.Contains(",") && double.TryParse(value, out Double doubleValue)) // Try to parse value as a number
                {
                    currentDict[key] = Math.Round(doubleValue, 2); // Round to 2 decimal places
                   
                }
                else
                {
                    currentDict[key] = value; // Store as string if not a number
                }
            }
            else
            {
                currentDict = (Dictionary<String, Object>)currentDict[key];
            }
        }
    }
    
    private static String ConvertToJson(String csv, Dictionary<String, Object> jsonData)
    {
        foreach (var line in csv.Split('\n'))
        {
            if (string.IsNullOrWhiteSpace(line)) continue;
              
            var  parts   = line.Split(';');
            var  keyPath = parts[0];
            var  value   = parts[1];
            var  unit    = parts.Length > 2 ? parts[2].Trim() : "";
            InsertIntoJson(jsonData, keyPath.Split('/'), value);
        }

        var jsonOutput = JsonConvert.SerializeObject(jsonData, Formatting.None);
        return jsonOutput;
    }
    
    private static async Task SavingLocalCsvFile(Int64 timestamp, String csv)
    {
        const String directoryPath = "/home/inesco/SodiStoreHome/csvFile";

        // Ensure directory exists
        if (!Directory.Exists(directoryPath))
        {
            Directory.CreateDirectory(directoryPath);
        }

        // Get all .csv files ordered by creation time (oldest first)
        var csvFiles = new DirectoryInfo(directoryPath)
            .GetFiles("*.csv")
            .OrderBy(f => f.CreationTimeUtc)
            .ToList();

        // If more than 5000 files, delete the oldest
        if (csvFiles.Count >= 5000)
        {
            var oldestFile = csvFiles.First();
            try
            {
                oldestFile.Delete();
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Failed to delete file: {oldestFile.FullName}, Error: {ex.Message}");
            }
        }

        // Prepare the filtered CSV content
        var filteredCsv = csv
            .SplitLines()
            .Where(l => !l.Contains("Secret"))
            .JoinLines();

        // Save the new CSV file
        var filePath = Path.Combine(directoryPath, timestamp + ".csv");
        await File.WriteAllTextAsync(filePath, filteredCsv);
    }

    private static async Task<Boolean> ConcatinatingAndCompressingFiles(Int64 timeStamp, S3Config s3Config)
    {
         if (_fileCounter >= NbrOfFileToConcatenate)
         {
             _fileCounter = 0;

             var logFileConcatenator = new LogFileConcatenator();
             var jsontoSend = logFileConcatenator.ConcatenateFiles(NbrOfFileToConcatenate);

             var fileNameWithoutExtension = timeStamp.ToString(); // used for both S3 and local
             var s3Path = fileNameWithoutExtension + ".json";

             var request = s3Config.CreatePutRequest(s3Path);

             var compressedBytes = CompresseBytes(jsontoSend);
             var base64String = Convert.ToBase64String(compressedBytes);
             var stringContent = new StringContent(base64String, Encoding.UTF8, "application/base64");

             var uploadSucceeded = false;

             try
             {
                 var response = await request.PutAsync(stringContent);

                 if (response.StatusCode != 200)
                 {
                     Console.WriteLine("ERROR: PUT");
                     var error = await response.GetStringAsync();
                     Console.WriteLine(error);

                     await SaveToLocalCompressedFallback(compressedBytes, fileNameWithoutExtension);
                    // Heartbit();
                     return false;
                 }

                 uploadSucceeded = true;
                 Console.WriteLine("✅ File uploaded to S3 successfully.");

                 Console.WriteLine("---------------------------------------- Resending FailedUploadedFiles----------------------------------------");
               //  Heartbit();

                 await ResendLocalFailedFilesAsync(s3Config); // retry any pending failed files
             }
             catch (Exception ex)
             {
                 Console.WriteLine("Upload exception: " + ex.Message);

                 if (!uploadSucceeded)
                 {
                     await SaveToLocalCompressedFallback(compressedBytes, fileNameWithoutExtension);
                 }

                 //Heartbit();
                 return false;
             }
         }

         _fileCounter++;
         return true;
    }
    
   /* private static void Heartbit()
    { 
        var s3Bucket = Config.Load().S3?.Bucket;
        var tryParse = int.TryParse(s3Bucket?.Split("-")[0], out var installationId);
        if (tryParse)
        {
            var returnedStatus = new StatusMessage
            {
                InstallationId = installationId,
                Product        = 2,
                Status         = _sodiohomeAlarmState,
                Type           = MessageType.Heartbit,
            };
            if (s3Bucket != null)
                RabbitMqManager.InformMiddleware(returnedStatus);
        }
    }*/
    
    private static async Task SaveToLocalCompressedFallback(Byte[] compressedData, String fileNameWithoutExtension)
    {
        try
        {
            var fallbackDir = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "FailedUploads");
            Directory.CreateDirectory(fallbackDir);

            var fileName = fileNameWithoutExtension + ".json"; // Save as .json, but still compressed
            var fullPath = Path.Combine(fallbackDir, fileName);

            await File.WriteAllBytesAsync(fullPath, compressedData); // Compressed data
            Console.WriteLine($"Saved compressed failed upload to: {fullPath}");
        }
        catch (Exception ex)
        {
            Console.WriteLine("Failed to save compressed file locally: " + ex.Message);
        }
    }
    
    private static async Task ResendLocalFailedFilesAsync(S3Config s3Config)
    {
        var fallbackDir = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "FailedUploads");

        if (!Directory.Exists(fallbackDir))
            return;

        var files = Directory.GetFiles(fallbackDir, "*.json");
        files.Length.WriteLine(" Number of failed files, to upload");

        foreach (var filePath in files)
        {
            var fileName = Path.GetFileName(filePath); // e.g., "1720023600.json"

            try
            {
                byte[] compressedBytes = await File.ReadAllBytesAsync(filePath);
                var base64String = Convert.ToBase64String(compressedBytes);
                var stringContent = new StringContent(base64String, Encoding.UTF8, "application/base64");

                var request = s3Config.CreatePutRequest(fileName);
                var response = await request.PutAsync(stringContent);

                if (response.StatusCode == 200)
                {
                    File.Delete(filePath);
                    Console.WriteLine($"✅ Successfully resent and deleted: {fileName}");
                }
                else
                {
                    Console.WriteLine($"❌ Failed to resend {fileName}, status: {response.StatusCode}");
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine($"⚠️ Exception while resending {fileName}: {ex.Message}");
            }
        }
    }
    private static Byte[] CompresseBytes(String jsonToSend)
    {
        //Compress JSON data to a byte array
        using var memoryStream = new MemoryStream();
        //Create a zip directory and put the compressed file inside
        using (var archive = new ZipArchive(memoryStream, ZipArchiveMode.Create, true))
        {
            var entry = archive.CreateEntry("data.json", CompressionLevel.SmallestSize); // Add JSON data to the ZIP archive
            using (var entryStream = entry.Open())
            using (var writer = new StreamWriter(entryStream))
            {
                writer.Write(jsonToSend);
            }
        }
        
        var compressedBytes = memoryStream.ToArray();

        return compressedBytes;
    }

}