//>>***************************************************************************
//                              UNCLASSIFIED
//
//                COPYRIGHT 2017 RAYTHEON MISSILE SYSTEMS 
//                         ALL RIGHTS RESERVED
//   This data was developed pursuant to Contract Number HQ0147-12-C-0004/1088370
//     with the US Government. The US Government's rights in and to this 
//        copyrighted data are as specified in DFAR 252.227-7013 
//               which was made part of the above contract.
//
//    Distribution Statement: D -Distribution authorized to the DoD and DoD 
//       contractors only based on Critical Technology Requirements, May 2001.
//       Other requests shall be referred to PEO THEATER AIR DEFENSE (PMS 422).
//    Warning: - This document contains technical data whose export is restricted
//       by the Arms Export Control Act (Title 22, U.S.C.) or Export 
//       Administration Act of 1979, as amended (Title 50, U.S.C.). Violations 
//       of these laws are subject to severe criminal penalties. Disseminate in 
//       accordance with provisions of DoD 5230.25.
//    Destruction Notice: - For unclassified, limited distribution information, 
//       destroy by any method that will prevent disclosure of contents or 
//       reconstruction of the document. Classified information, destroy in 
//       accordance with DoD-5220.22-M or OPNAVINST 5510.1h.
//>>***************************************************************************

using System;
using NLog;
using Raytheon.Common;
using Raytheon.Framework;

namespace Raytheon.Instruments
{
   /// <summary>
   /// </summary>
   public class SigGenSim : ISignalGenerator
   {
      #region PrivateMembers

      private State _state;
      private SelfTestResult _selfTestResult;
      private string _name;

      private readonly ILogger _logger;

      private readonly IConfigurationManager _configurationManager;
      private readonly IConfiguration _configuration;

      #endregion

      #region PrivateFunctions

      /// <summary>
      /// The Finalizer which will release resources if required
      /// </summary>
      ~SigGenSim()
      {
         Dispose(false);
      }

      /// <summary>
      /// Dispose of this object
      /// </summary>
      /// <param name="disposing"></param>
      protected virtual void Dispose(bool disposing)
      {
         if (disposing)
         {
            if (_state == State.Ready)
            {
               Reset();

               _state = State.Uninitialized;
            }
         }
      }

      #endregion

      /// <summary>
      /// PowerMeterKeysightScpi factory constructor
      /// </summary>
      /// <param name="deviceName"></param>
      /// <param name="configurationManager"></param>
      public SigGenSim(string deviceName, IConfigurationManager configurationManager)
      {
         Name = deviceName;

         _logger = LogManager.GetLogger($"{this.GetType().Name} - {deviceName}");

         _configurationManager = configurationManager;
         _configuration = _configurationManager.GetConfiguration(Name);

         _state = State.Uninitialized;
         _selfTestResult = SelfTestResult.Unknown;
      }

      /// <summary>
      /// 
      /// </summary>
      /// <param name="deviceName"></param>
      public SigGenSim(string deviceName)
      {
         _name = deviceName;
         _logger = LogManager.GetLogger($"{this.GetType().Name} - {deviceName}");
         _state = State.Uninitialized;
         _selfTestResult = SelfTestResult.Unknown;
      }

      /// <summary>
      /// 
      /// </summary>
      /// <returns></returns>
      public bool ClearErrors()
      {
         throw new NotImplementedException();
      }

      /// <summary>
      /// 
      /// </summary>
      public string DetailedStatus
      {
         get
         {
            return "This is a Scpi Sig Gen";
         }
      }

      /// <summary>
      /// 
      /// </summary>
      public bool DisplayEnabled
      {
         get
         {
            throw new NotImplementedException();
         }

         set
         {
            throw new NotImplementedException();
         }
      }

      /// <summary>
      /// Dispose of this objects resources
      /// </summary>
      public void Dispose()
      {
         Dispose(true);

         GC.SuppressFinalize(this);
      }

      /// <summary>
      /// 
      /// </summary>
      /// <param name="enable"></param>
      /// <returns></returns>
      public void Enable(bool enable)
      {
      }

      /// <summary>
      /// 
      /// </summary>
      public bool FrontPanelEnabled
      {
         get
         {
            throw new NotImplementedException();
         }

         set
         {
            throw new NotImplementedException();
         }
      }

      /// <summary>
      /// 
      /// </summary>
      public InstrumentMetadata Info
      {
         get
         {
            throw new NotImplementedException();
         }
      }

      /// <summary>
      /// 
      /// </summary>
      public void Initialize()
      {
         // if we have not yet been initialized, go ahead and create the socket
         if (_state == State.Uninitialized)
         {
            Reset();

            // we already connected to the instrument in the constructor
            _state = State.Ready;
         }
         else
         {
            throw new Exception("expected the state of System " + _name + " to be Uninitialized, state was: " + _state.ToString());
         }
      }

      /// <summary>
      /// 
      /// </summary>
      /// <param name="command"></param>
      /// <returns></returns>
      public string IOQuery(string command)
      {
         return "Junk Sim Data";
      }

      /// <summary>
      /// 
      /// </summary>
      /// <param name="command"></param>
      public void IOWrite(string command, bool shallWeCheckForError = true)
      {
      }

      /// <summary>
      /// 
      /// </summary>
      public string Name
      {
         get
         {
            return _name;
         }
         set
         {
            _name = value;
         }
      }

      /// <summary>
      /// 
      /// </summary>
      public SelfTestResult SelfTestResult
      {
         get
         {
            return _selfTestResult;
         }
      }

      /// <summary>
      /// 
      /// </summary>
      public State Status
      {
         get
         {
            return _state;
         }
      }

      /// <summary>
      /// 
      /// </summary>
      /// <returns></returns>
      public SelfTestResult PerformSelfTest()
      {
         try
         {
            _selfTestResult = SelfTestResult.Pass;

            return SelfTestResult.Pass;
         }
         catch (Exception)
         {
            throw;
         }
      }

      /// <summary>
      /// 
      /// </summary>
      public void Reset()
      {
      }

      /// <summary>
      /// 
      /// </summary>
      /// <param name="channel"></param>
      /// <param name="frequency"></param>
      /// <returns></returns>
      public void SetFrequency(UnitizedValue frequency)
      {
      }

      /// <summary>
      /// 
      /// </summary>
      /// <param name="powerLevel"></param>
      public void SetPowerLevel(UnitizedValue powerLevel)
      {
      }

      /// <summary>
      /// 
      /// </summary>
      public void Shutdown()
      {
         string errorMsg = "";

         if (_state == State.Ready)
         {
            try
            {
               //Reset System
               Reset();
            }
            catch (Exception err)
            {
               errorMsg += err.Message + " ";
            }

            _state = State.Uninitialized;
         }
      }
   }
}