using Step.Core;
using Step.Model.DTOModels;
using Step.NC;
using System.Collections.Generic;
using System.Diagnostics;
using System.Threading;
using TeamDev.SDK.MVVM;
using static CMS_CORE_Library.DataStructures;
using static Step.Model.Constants;
using static Step.Utils.ExceptionManager;

public static class ThreadsFunctions
{
    public static bool reconnectionIsRunning = false;
    private static long ReadAlarmsTimer = 0, ReadAlarmsTimes = 0;
    private static long ReadAxesTimer = 0, ReadAxesTimes = 0;
    private static long ReadPowerOnTimer = 0, ReadPowerOnTimes = 0;
    private static long ReadProcPPTimer = 0, ReadProcPPTimes = 0;
    private static long ReadFunctionTimer = 0, ReadFunctionTimes = 0;
    private static long ReadMaintenanceTimer = 0, ReadMaintenanceTimes = 0;
    private static long ReadUserSoftKeysTimer = 0, ReadUserSoftKeysTimes = 0;
    private static long ReadAxesNamesTimer = 0, ReadAxesNamesTimes = 0;
    private static long ReadHeadsTimer = 0, ReadHeadsTimes = 0;

    private static Thread ConnThread;

    #region Nc Threads

    public static void ReadAlarms()
    {
        NcHandler ncHandler = new NcHandler();
        Stopwatch sw = new Stopwatch();

        try
        {
            CmsError libraryError = ncHandler.Connect();
            if (libraryError.errorCode != 0)
                ManageLibraryError(libraryError);

            while (true)
            {
                sw.Restart();
                // Check if client is connected
                if (ncHandler.numericalControl.NC_IsConnected())
                {
                    // Get Alarms from NC
                    libraryError = ncHandler.GetNcAlarms(out DTOAlarmsModel alarms);
                    if (libraryError.errorCode != 0)
                        ManageLibraryError(libraryError);
                    else
                        // Send through signalR
                        MessageServices.Current.Publish(SEND_ALARMS, null, alarms);
                }
                else
                    TryNcConnection();
                sw.Stop();

                //Update thread timer
                ReadAlarmsTimer += sw.ElapsedMilliseconds;
                ReadAlarmsTimes++;

                // Wait
                Thread.Sleep(CalcSleepTime(200, (int)sw.ElapsedMilliseconds));
            }
        }
        catch (ThreadAbortException)
        {
            ncHandler.Dispose();
        }
    }

    public static void ReadPowerOnData()
    {
        NcHandler ncHandler = new NcHandler();
        Stopwatch sw = new Stopwatch();

        try
        {
            CmsError libraryError = ncHandler.Connect();
            if (libraryError.errorCode != 0)
                ManageLibraryError(libraryError);

            while (true)
            {
                sw.Restart();
                // Check if client is connected
                if (ncHandler.numericalControl.NC_IsConnected())
                {
                    // Get Data from NC
                    libraryError = ncHandler.GetPowerOnData(out DTOPowerOnDataModel powerOnData);
                    if (libraryError.errorCode != 0)
                        ManageLibraryError(libraryError);
                    else
                        // Send through signalR
                        MessageServices.Current.Publish(SEND_POWER_ON_DATA, null, powerOnData);
                }
                else
                    TryNcConnection();
                sw.Stop();

                // Update thread timer
                ReadPowerOnTimer += sw.ElapsedMilliseconds;
                ReadPowerOnTimes++;

                // Wait
                Thread.Sleep(CalcSleepTime(400, (int)sw.ElapsedMilliseconds));
            }
        }
        catch (ThreadAbortException)
        {
            ncHandler.Dispose();
        }
    }

    // Read processes part program status
    public static void ReadProcessesPPStatus()
    {
        NcHandler ncHandler = new NcHandler();
        Stopwatch sw = new Stopwatch();

        try
        {
            // Try connection
            CmsError libraryError = ncHandler.Connect();
            if (libraryError.errorCode != 0)
                ManageLibraryError(libraryError);

            while (true)
            {
                sw.Restart();

                if (ncHandler.numericalControl.NC_IsConnected())
                {
                    // Get Data from NC
                    libraryError = ncHandler.GetProcessesData(out DTOProcessesDataModel processesPPData);
                    if (libraryError.errorCode != 0)
                        ManageLibraryError(libraryError);
                    else
                    {
                        // Get softkey data from config and PLC
                        libraryError = ncHandler.GetNcSoftKeys(out List<DTONcSoftKeyModel> ncSoftKeys);
                        if (libraryError.errorCode != 0)
                            ManageLibraryError(libraryError);
                        else
                        {
                            // Send processes through signalR
                            MessageServices.Current.Publish(SEND_PROCESSES_DATA, null, processesPPData);
                            // Send ncSoftKeys through signalR
                            MessageServices.Current.Publish(SEND_NC_SOFTKEYS_DATA, null, ncSoftKeys);
                        }
                    }
                }
                else
                    TryNcConnection();

                sw.Stop();

                // Update thread timer
                ReadProcPPTimer += sw.ElapsedMilliseconds;
                ReadProcPPTimes++;

                // Wait
                Thread.Sleep(CalcSleepTime(200, (int)sw.ElapsedMilliseconds));
            }
        }
        catch (ThreadAbortException)
        {
            ncHandler.Dispose();
        }
    }

    public static void ReadEnabledFunctionality()
    {
        NcHandler ncHandler = new NcHandler();
        Stopwatch sw = new Stopwatch();

        try
        {
            // Try connection
            CmsError libraryError = ncHandler.Connect();
            if (libraryError.errorCode != 0)
                ManageLibraryError(libraryError);

            while (true)
            {
                sw.Restart();

                if (ncHandler.numericalControl.NC_IsConnected())
                {
                    // Get Data from NC
                    libraryError = ncHandler.GetFunctionsMappedWithNC(out List<DTORuntimeFunctionalityModel> functionsAccessList);
                    if (libraryError.errorCode != 0)
                        ManageLibraryError(libraryError);
                    else
                        // Send through signalR
                        MessageServices.Current.Publish(SEND_FUNCTIONALITY_DATA, null, functionsAccessList);
                }
                else
                    TryNcConnection();

                sw.Stop();

                // Update thread timer
                ReadFunctionTimer += sw.ElapsedMilliseconds;
                ReadFunctionTimes++;

                // Wait
                Thread.Sleep(CalcSleepTime(200, (int)sw.ElapsedMilliseconds));
            }
        }
        catch (ThreadAbortException)
        {
            ncHandler.Dispose();
        }
    }

    public static void ReadExpiredMaintenances()
    {
        NcHandler ncHandler = new NcHandler();
        Stopwatch sw = new Stopwatch();

        try
        {
            // Try connection
            CmsError libraryError = ncHandler.Connect();
            if (libraryError.errorCode != 0)
                ManageLibraryError(libraryError);

            while (true)
            {
                sw.Restart();

                if (ncHandler.numericalControl.NC_IsConnected())
                {
                    // Get Data from database and PLC
                    libraryError = ncHandler.GetExpiredMaintenances(out List<DTOExpiredMaintenanceModel> expiredMaintenances);
                    if (libraryError.errorCode != 0)
                        ManageLibraryError(libraryError);
                    else
                        // Send through signalR
                        MessageServices.Current.Publish(SEND_EXPIRED_MAINTENANCES_DATA, null, expiredMaintenances);
                }
                else
                    TryNcConnection();

                sw.Stop();

                // Update thread timer
                ReadMaintenanceTimer += sw.ElapsedMilliseconds;
                ReadMaintenanceTimes++;

                // Wait
                Thread.Sleep(30000);
            }
        }
        catch (ThreadAbortException)
        {
            ncHandler.Dispose();
        }
    }

    public static void ReadUserSoftKeysData()
    {
        NcHandler ncHandler = new NcHandler();
        Stopwatch sw = new Stopwatch();

        try
        {
            // Try connection
            CmsError libraryError = ncHandler.Connect();
            if (libraryError.errorCode != 0)
                ManageLibraryError(libraryError);

            while (true)
            {
                sw.Restart();

                if (ncHandler.numericalControl.NC_IsConnected())
                {
                    // Get softkey data from config and PLC
                    libraryError = ncHandler.GetUserSoftKeys(out List<DTOUserSoftKeyModel> softKeys);
                    if (libraryError.errorCode != 0)
                        ManageLibraryError(libraryError);
                    else
                        // Send through signalR
                        MessageServices.Current.Publish(SEND_USER_SOFTKEYS_DATA, null, softKeys);
                }
                else
                    TryNcConnection();

                sw.Stop();

                // Update thread timer
                ReadUserSoftKeysTimer += sw.ElapsedMilliseconds;
                ReadUserSoftKeysTimes++;

                // Wait
                Thread.Sleep(CalcSleepTime(200, (int)sw.ElapsedMilliseconds));
            }
        }
        catch (ThreadAbortException)
        {
            ncHandler.Dispose();
        }
    }

    public static void ReadHeadsData()
    {
        NcHandler ncHandler = new NcHandler();
        Stopwatch sw = new Stopwatch();

        try
        {
            // Try connection
            CmsError libraryError = ncHandler.Connect();
            if (libraryError.errorCode != 0)
                ManageLibraryError(libraryError);

            while (true)
            {
                sw.Restart();

                if (ncHandler.numericalControl.NC_IsConnected())
                {
                    // Get Data from config and PLC
                    libraryError = ncHandler.GetHeadsData(out List<DTOHeadModel> heads);
                    if (libraryError.errorCode != 0)
                        ManageLibraryError(libraryError);
                    else
                        // Send through signalR
                        MessageServices.Current.Publish(SEND_HEADS_DATA, null, heads);
                }
                else
                    TryNcConnection();

                sw.Stop();

                //Update thread timer
                ReadHeadsTimer += sw.ElapsedMilliseconds;
                ReadHeadsTimes++;

                // Wait
                Thread.Sleep(CalcSleepTime(500, (int)sw.ElapsedMilliseconds));
            }
        }
        catch (ThreadAbortException)
        {
            ncHandler.Dispose();
        }
    }

    public static void ReadAxesNamesData()
    {
        NcHandler ncHandler = new NcHandler();
        Stopwatch sw = new Stopwatch();

        try
        {
            // Try connection
            CmsError libraryError = ncHandler.Connect();
            if (libraryError.errorCode != 0)
                ManageLibraryError(libraryError);

            while (true)
            {
                sw.Restart();

                if (ncHandler.numericalControl.NC_IsConnected())
                {
                    // Get Data from config and PLC
                    libraryError = ncHandler.ReadAxisData(out List<DTOAxisNameModel> axes);
                    if (libraryError.errorCode != 0)
                        ManageLibraryError(libraryError);
                    else
                        // Send through signalR
                        MessageServices.Current.Publish(SEND_AXIS_NAMES_DATA, null, axes);
                }
                else
                    TryNcConnection();

                sw.Stop();

                //Update thread timer
                ReadAxesNamesTimer += sw.ElapsedMilliseconds;
                ReadAxesNamesTimes++;

                // Wait
                Thread.Sleep(CalcSleepTime(800, (int)sw.ElapsedMilliseconds));
            }
        }
        catch (ThreadAbortException)
        {
            ncHandler.Dispose();
        }
    }

    #endregion Nc Threads

    #region SupportFunctions

    private static void WillReconnect()
    {
        // Stop all the NC threads
        ThreadsHandler.Stop();
        StatReset();
        NcHandler ncHandler = new NcHandler();

        // Run loop until NC is connected
        while (!ncHandler.numericalControl.NC_IsConnected())
        {
            // Try reconnection
            CmsError cmsError = ncHandler.Connect();
            if (cmsError.errorCode == CMS_ERROR_CODES.SIEMENS_ENVIRONMENT_NOT_FOUND || cmsError.errorCode == CMS_ERROR_CODES.SIEMENS_HMI_NOT_RUNNING)
                ManageLibraryError(cmsError);
            else if (cmsError.errorCode != CMS_ERROR_CODES.OK)
                ncHandler.Dispose();

            Thread.Sleep(1000);

            // Send status to UI
            MessageServices.Current.Publish(SEND_NC_STATUS, null, ncHandler.numericalControl.NC_IsConnected());
        }
        // Start/Restart NC threads
        ThreadsHandler.StartWorkers();

        reconnectionIsRunning = false;
    }

    public static void TryNcConnection()
    {
        if (reconnectionIsRunning == false)
        {   // Set thread as running state
            reconnectionIsRunning = true;

            // Start reconnection thread
            ConnThread = new Thread(() =>
                        WillReconnect()
            );

            ConnThread.Start();
        }
    }

    public static void AbortNcConnection()
    {
        if (ConnThread != null && ConnThread.IsAlive)
            ConnThread.Abort();
    }

    public static void ManageLibraryError(CmsError cmsError)
    {
        switch (cmsError.errorCode)
        {
            case CMS_ERROR_CODES.NC_PROD_ERROR:
                Manage(ERROR_LEVEL.WARNING, cmsError.message);
                break;

            case CMS_ERROR_CODES.NOT_CONNECTED:
                TryNcConnection(); // If not connected try reconnection
                break;

            case CMS_ERROR_CODES.PROC_NOT_FOUND:
                break;

            case CMS_ERROR_CODES.FUNCTION_NOT_ALLOWED:
                break;

            case CMS_ERROR_CODES.BIT_NOT_IN_RANGE:
                break;

            case CMS_ERROR_CODES.BYTE_NOT_IN_RANGE:
                break;

            case CMS_ERROR_CODES.INTERNAL_ERROR:
                break;

            case CMS_ERROR_CODES.INCORRECT_PARAMETERS:
                break;

            case CMS_ERROR_CODES.NC_LANGUAGE_ERROR:
                break;

            case CMS_ERROR_CODES.SIEMENS_ENVIRONMENT_NOT_FOUND:
                Manage(ERROR_LEVEL.FATAL, cmsError.message);
                break;

            case CMS_ERROR_CODES.SIEMENS_HMI_NOT_RUNNING:
                Manage(ERROR_LEVEL.WARNING, cmsError.message);
                TryNcConnection(); // If not connected try reconnection
                break;
        }
    }

    internal static void StatThread()
    {
        while (true)
        {
            if (ThreadsHandler.RunningThreadStatus.ContainsKey("ReadAlarms") && ReadAlarmsTimes != 0)
            {
                ThreadsHandler.RunningThreadStatus["ReadAlarms"] = (ReadAlarmsTimer / ReadAlarmsTimes) + " mS";
                ReadAlarmsTimer = 0;
                ReadAlarmsTimes = 0;
            }

            if (ThreadsHandler.RunningThreadStatus.ContainsKey("ReadAxes") && ReadAxesTimes != 0)
            {
                ThreadsHandler.RunningThreadStatus["ReadAxes"] = (ReadAxesTimer / ReadAxesTimes) + " mS";
                ReadAxesTimer = 0;
                ReadAxesTimes = 0;
            }

            if (ThreadsHandler.RunningThreadStatus.ContainsKey("ReadPowerOnData") && ReadPowerOnTimes != 0)
            {
                ThreadsHandler.RunningThreadStatus["ReadPowerOnData"] = (ReadPowerOnTimer / ReadPowerOnTimes) + " mS";
                ReadPowerOnTimer = 0;
                ReadPowerOnTimes = 0;
            }

            if (ThreadsHandler.RunningThreadStatus.ContainsKey("ReadProcessesPPStatus") && ReadProcPPTimes != 0)
            {
                ThreadsHandler.RunningThreadStatus["ReadProcessesPPStatus"] = (ReadProcPPTimer / ReadProcPPTimes) + " mS";
                ReadProcPPTimer = 0;
                ReadProcPPTimes = 0;
            }
            if (ThreadsHandler.RunningThreadStatus.ContainsKey("ReadEnabledFunctionality") && ReadFunctionTimes != 0)
            {
                ThreadsHandler.RunningThreadStatus["ReadEnabledFunctionality"] = (ReadFunctionTimer / ReadFunctionTimes) + " mS";
                ReadFunctionTimer = 0;
                ReadFunctionTimes = 0;
            }

            if (ThreadsHandler.RunningThreadStatus.ContainsKey("ReadExpiredMaintenances") && ReadMaintenanceTimes != 0)
            {
                ThreadsHandler.RunningThreadStatus["ReadExpiredMaintenances"] = (ReadMaintenanceTimer / ReadMaintenanceTimes) + " mS";
                ReadMaintenanceTimer = 0;
                ReadMaintenanceTimes = 0;
            }
            if (ThreadsHandler.RunningThreadStatus.ContainsKey("ReadUserSoftKeysData") && ReadUserSoftKeysTimes != 0)
            {
                ThreadsHandler.RunningThreadStatus["ReadUserSoftKeysData"] = (ReadUserSoftKeysTimer / ReadUserSoftKeysTimes) + " mS";
                ReadUserSoftKeysTimer = 0;
                ReadUserSoftKeysTimes = 0;
            }
            if (ThreadsHandler.RunningThreadStatus.ContainsKey("ReadHeadsData") && ReadHeadsTimes != 0)
            {
                ThreadsHandler.RunningThreadStatus["ReadHeadsData"] = (ReadHeadsTimer / ReadHeadsTimes) + " mS";
                ReadHeadsTimer = 0;
                ReadHeadsTimes = 0;
            }
            if (ThreadsHandler.RunningThreadStatus.ContainsKey("ReadAxesNamesData") && ReadAxesNamesTimer != 0)
            {
                ThreadsHandler.RunningThreadStatus["ReadAxesNamesData"] = (ReadAxesNamesTimer / ReadAxesNamesTimes) + " mS";
                ReadAxesNamesTimer = 0;
                ReadAxesNamesTimes = 0;
            }

            MessageServices.Current.Publish(SEND_THREADS_STATUS, null, ThreadsHandler.RunningThreadStatus);

            Thread.Sleep(2000);
        }
    }

    private static void StatReset()
    {
        ReadAlarmsTimer = 0;
        ReadAlarmsTimes = 0;
        ReadAxesTimer = 0;
        ReadAxesTimes = 0;
        ReadProcPPTimer = 0;
        ReadProcPPTimes = 0;
        ReadFunctionTimer = 0;
        ReadFunctionTimes = 0;
        ReadMaintenanceTimer = 0;
        ReadMaintenanceTimes = 0;
        ReadHeadsTimer = 0;
        ReadHeadsTimes = 0;
        ReadAxesNamesTimer = 0;
        ReadAxesNamesTimes = 0;
    }

    private static int CalcSleepTime(int maxSleep, int execTime)
    {
        int sleep = 0;
        // Check if the execution time is greater than the half of the max sleep time
        if ( maxSleep - execTime < maxSleep / 2 )
        {
            sleep = maxSleep;
        }
        else
        {
            sleep = maxSleep - execTime;
        }

        return sleep;
    }
    #endregion SupportFunctions
}


//public static void ReadNcSoftKeysData()
//{
//    NcHandler ncHandler = new NcHandler();
//    Stopwatch sw = new Stopwatch();

//    try
//    {
//        // Try connection
//        CmsError libraryError = ncHandler.Connect();
//        if (libraryError.errorCode != 0)
//            ManageLibraryError(libraryError);

//        while (true)
//        {
//            sw.Restart();

//            if (ncHandler.numericalControl.NC_IsConnected())
//            {
//                // Get softkey data from config and PLC
//                libraryError = ncHandler.GetNcSoftKeys(out List<DTONcSoftKeyModel> ncSoftKeys);
//                if (libraryError.errorCode != 0)
//                    ManageLibraryError(libraryError);
//                else
//                    // Send through signalR
//                    MessageServices.Current.Publish(SEND_NC_SOFTKEYS_DATA, null, ncSoftKeys);
//            }
//            else
//                TryNcConnection();

//            sw.Stop();

//            // Update thread timer
//            ReadUserSoftKeysTimer += sw.ElapsedMilliseconds;
//            ReadUserSoftKeysTimes++;

//            // Wait
//            Thread.Sleep(200);
//        }
//    }
//    catch (ThreadAbortException)
//    {
//        ncHandler.Dispose();
//    }
//}