GenericTeProgramLibrary/Source/Program/Threads/PowerSupplyGuiUpdateThread.cs

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using NLog;
using ProgramGui;
using ProgramGui.Model;
using ProgramGui.ViewModel;
using ProgramLib;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace ProgramLib
{
   /// <summary>
   /// Class to spawn thread to update power supply data on GUI
   /// </summary>
   internal class PowerSupplyGuiUpdateThread : BasicThread
   {
      private enum Events
      {
         GLOBAL_QUIT,
         UUT_POWER_ON,
         UUT_POWER_OFF,

         // DO NOT change the name
         // This must be the last member in the enum
         EVENT_TIMED_OUT
      }

      private ILogger _logger;
      private MainWindow _mainWindow;

      private Dictionary<string, PowerModuleDataModel> _powerModuleToPowerDataModelDict = new Dictionary<string, PowerModuleDataModel>();

      /// <summary>
      /// Constructor
      /// </summary>
      public PowerSupplyGuiUpdateThread()
      {
         _logger = LogManager.GetCurrentClassLogger();

         _mainWindow = (MainWindow)ProgramLib.Program.Instance().GetGuiManager()[ProgramGuiManager.WINDOWS.MAIN];

         _powerModuleToPowerDataModelDict["UUT_P20V"] = new PowerModuleDataModel();
         _powerModuleToPowerDataModelDict["UUT_N20V"] = new PowerModuleDataModel();

         ProgramLib.Program.Instance().GetGuiManager()[ProgramGuiManager.WINDOWS.MAIN].Dispatcher.Invoke((Action)delegate
         {
            _mainWindow._mainWindowViewModel.AddPowerData(_powerModuleToPowerDataModelDict);
         });
      }

      ~PowerSupplyGuiUpdateThread()
      {
         _logger?.Debug($"Entering {this.GetType().Name}::{System.Reflection.MethodBase.GetCurrentMethod().Name}() ...");
      }

      /// <summary>
      /// Method that executes on the thread.
      /// </summary>
      /// <param name=""></param>
      /// <returns></returns>
      protected override void DoWork()
      {
         _logger?.Debug($"{this.GetType().Name}::{System.Reflection.MethodBase.GetCurrentMethod().Name}() is running...");

         try
         {
            Dictionary<Events, EventWaitHandle> eventDict = new Dictionary<Events, EventWaitHandle>();
            eventDict[Events.GLOBAL_QUIT] = Program.Instance()._eventManager[EventManager.Events.GLOBAL_QUIT];
            eventDict[Events.UUT_POWER_ON] = Program.Instance()._eventManager[EventManager.Events.UUT_POWER_ON];
            eventDict[Events.EVENT_TIMED_OUT] = null;

            EventGroup<Events, EventWaitHandle> eventGroup = new EventGroup<Events, EventWaitHandle>(eventDict);

            while (true)
            {
               Events id = eventGroup.WaitAny();

               if (id == Events.UUT_POWER_ON)
               {
                  UpdatePowerSupplyGui();
               }
               else
                  break;
            }
         }
         catch (Exception ex)
         {
            _logger?.Error(ex.Message + "\n" + ex.StackTrace);
         }

         _logger?.Debug($"{this.GetType().Name}::{System.Reflection.MethodBase.GetCurrentMethod().Name}() is exiting...");

      }

      /// <summary>
      /// Update GUI with data
      /// </summary>
      /// <param name=""></param>
      /// <returns></returns>
      private void UpdatePowerSupplyGui()
      {
         int pollRateMs = 1000;
         _logger?.Debug($"{this.GetType().Name}::{System.Reflection.MethodBase.GetCurrentMethod().Name}() is running...");

         try
         {
            Dictionary<Events, EventWaitHandle> eventDict = new Dictionary<Events, EventWaitHandle>();
            eventDict[Events.GLOBAL_QUIT] = Program.Instance()._eventManager[EventManager.Events.GLOBAL_QUIT];
            eventDict[Events.UUT_POWER_OFF] = Program.Instance()._eventManager[EventManager.Events.UUT_POWER_OFF];
            eventDict[Events.EVENT_TIMED_OUT] = null;

            EventGroup<Events, EventWaitHandle> eventGroup = new EventGroup<Events, EventWaitHandle>(eventDict);

            Random rnd = new Random();
            while (true)
            {
               Events id = eventGroup.WaitAny(pollRateMs);

               if (id == Events.EVENT_TIMED_OUT)
               {
                  rnd = new Random();

                  _mainWindow._mainWindowViewModel.UutPowerLedImagePath = _mainWindow._mainWindowViewModel._imageToResourcePathDict[MainWindowViewModel.Images.LED_OFF];
                  float num = 20.0f + GenerateRandomFraction();
                  _powerModuleToPowerDataModelDict["UUT_P20V"].ActualVoltage = num.ToString("0.00");
                  _powerModuleToPowerDataModelDict["UUT_P20V"].ExpectedVoltage = "20.0";
                  Thread.Sleep(100);
                  num = 1.0f + GenerateRandomFraction();
                  _powerModuleToPowerDataModelDict["UUT_P20V"].ActualCurrent = num.ToString("0.00");
                  Thread.Sleep(100);
                  num = 20.0f + GenerateRandomFraction();
                  _powerModuleToPowerDataModelDict["UUT_N20V"].ActualVoltage = num.ToString("0.00");
                  _powerModuleToPowerDataModelDict["UUT_N20V"].ExpectedVoltage = "20.0";
                  Thread.Sleep(200);
                  _mainWindow._mainWindowViewModel.UutPowerLedImagePath = _mainWindow._mainWindowViewModel._imageToResourcePathDict[MainWindowViewModel.Images.LED_ON];

                  num = 5.0f + GenerateRandomFraction();
                  _powerModuleToPowerDataModelDict["UUT_N20V"].ActualCurrent = num.ToString("0.00");
               }
               else
                  break;
            }
         }
         catch (Exception ex)
         {
            _logger.Error(ex.Message + "\n" + ex.StackTrace);
         }

         _logger?.Debug($"{this.GetType().Name}::{System.Reflection.MethodBase.GetCurrentMethod().Name}() is exiting...");
      }

      static float GenerateRandomFraction()
      {
         Random rnd = new Random();
         int randNum = 0;
         const int minimum = 1;

         randNum = rnd.Next(20);

         if (randNum <= minimum)
         {
            randNum += minimum;
         }

         return (float)(1.0 / (float)randNum);
      }
   }
}