///
/// Copyright (c) 2013-2015 Sensus Metering Systems
///
using System;
using System.Windows.Forms;
using log4net;
using TBF.BenchControl.Generic;

namespace TBF.BenchControl.Elde.RegulValve
{
	public partial class RegulValveCfgCtrl : UserControl, IComponentCfgCtrl
	{
		static readonly ILog log = LogManager.GetLogger(typeof(RegulValveCfgCtrl));

		ComponentParametersDlg parent;

		public bool ShowMore { get { return true; } }

		RegulValveCfg config;
		public IComponentCfg Config
		{
			get { return config as IComponentCfg; }
			set
			{
				config = value as RegulValveCfg;
				Redraw();
			}
		}

		public RegulValveCfgCtrl()
		{
			InitializeComponent();
		}

		private void RegulationValveCfgCtrl_Load(object sender, EventArgs e)
		{
			parent = ParentForm as ComponentParametersDlg;
			if (parent == null) return;

			if (parent.TbfComponents != null)
			{
				foreach (var cmpnt in parent.TbfComponents)
				{
					if (TbfComponents.CmpntFactoryFromClassName(cmpnt.ClassName) is Elde.ControlBoardFactory)
					{
						parentNameComboBox.Items.Add(cmpnt.Name);
					}
				}
			}

			if (config != null)
			{
				adc1 = config.AdcValueClosed;
				pct1 = 0;
				adc2 = config.AdcValueOpen;
				pct2 = 100;
			}

			Redraw();
			StartResponseHandler();
		}

		public void Closing()
		{
			StopResponseHandler();
		}

		void Redraw()
		{
			if (config == null) return;			/// Control was not loaded, settings were not changed
												
			classNameLabel.Text = config.Factory.ClassName;
			nameTextBox.Text = config.Name;
			parentNameComboBox.Text = string.IsNullOrEmpty(config.ParentName) ? "---" : config.ParentName;
			positionTextBox.Text = config.Idx1.ToString();
			adcClosedTextBox.Text = config.AdcValueClosed.ToString();
			adcOpenTextBox.Text = config.AdcValueOpen.ToString();
            stableTimeTextBox.Text = config.StableTimeMs.ToString();
            storedPosReuseCheckBox.Checked = config.StoredPositionReuse;
            flowStableSecTextBox.Text = config.FlowStableSec.ToString();

			adcTextBox1.Text = adc1.ToString();
			adcTextBox2.Text = adc2.ToString();
			pctTextBox1.Text = pct1.ToString();
			pctTextBox2.Text = pct2.ToString();
		}

		public void Unlock()
		{
			nameTextBox.Enabled = true;
			parentNameComboBox.Enabled = true;
			positionTextBox.Enabled = true;
			adcClosedTextBox.Enabled = true;
			adcOpenTextBox.Enabled = true;
            stableTimeTextBox.Enabled = true;
            storedPosReuseCheckBox.Enabled = true;
            flowStableSecTextBox.Enabled = true;
        }

		public CfgUpdateFlags VerifyCfg(ref string message)
		{
            CfgUpdateFlags flags = CfgUpdateFlags.None;

			int dummy;
			if (!parentNameComboBox.Items.Contains(parentNameComboBox.Text))
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "Invalid 'Parent Name'";
			}

			if (!int.TryParse(positionTextBox.Text, out dummy) || dummy < 1 || dummy > 8)
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'Position' should be between 1 and 8";
			}

			if (!int.TryParse(adcClosedTextBox.Text, out dummy) || dummy < 0 || dummy > 1023)
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'ADC when Closed' should be between 0 and 1023";
			}

			if (!int.TryParse(adcOpenTextBox.Text, out dummy) || dummy < 0 || dummy > 1023)
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'ADC when Open' should be between 0 and 1023";
			}

            if (!int.TryParse(stableTimeTextBox.Text, out dummy) || dummy < 200 || dummy > 1500 || (dummy % 50) != 0)
            {
                flags |= CfgUpdateFlags.Error;
                message += Environment.NewLine + "'Stable time' should be between 200 and 1500 ms in 50 ms steps";
            }

            if (!int.TryParse(flowStableSecTextBox.Text, out dummy) || dummy < 0 || dummy > 60)
            {
                flags |= CfgUpdateFlags.Error;
                message += Environment.NewLine + "'Flow stable' should be between 0 and 60 sec";
            }

			return flags;
		}

		public CfgUpdateFlags UpdateCfg()
		{
			CfgUpdateFlags flags = CfgUpdateFlags.None;

			if (config == null) return CfgUpdateFlags.Error;	/// Control was not loaded, settings were not changed
												/// 
			if (!config.Name.Equals(nameTextBox.Text))
			{
				config.Name = nameTextBox.Text;
				flags |= CfgUpdateFlags.RestartRqrd;
			}

			string parentname = parentNameComboBox.Text.Equals("---") ? string.Empty : parentNameComboBox.Text;
			if (!config.ParentName.Equals(parentname))
			{
				config.ParentName = parentname;
				flags |= CfgUpdateFlags.RestartRqrd;
			}

			int tmp = int.Parse(positionTextBox.Text);
			if (config.Idx1 != tmp)
			{
				config.Idx1 = tmp;
				flags |= CfgUpdateFlags.RestartRqrd;
			}

			tmp = int.Parse(adcClosedTextBox.Text);
			if (config.AdcValueClosed != tmp)
			{
				config.AdcValueClosed = tmp;
				flags |= CfgUpdateFlags.RestartRqrd;
			}

			tmp = int.Parse(adcOpenTextBox.Text);
			if (config.AdcValueOpen != tmp)
			{
				config.AdcValueOpen = tmp;
				flags |= CfgUpdateFlags.RestartRqrd;
			}

			tmp = int.Parse(stableTimeTextBox.Text);
			if (config.StableTimeMs != tmp)
			{
				config.StableTimeMs = tmp;
				flags |= CfgUpdateFlags.AnyChange;
			}

			bool btmp = storedPosReuseCheckBox.Checked;
			if (config.StoredPositionReuse != btmp)
			{
				config.StoredPositionReuse = btmp;
				flags |= CfgUpdateFlags.RestartRqrd;
			}

			tmp = int.Parse(flowStableSecTextBox.Text);
			if (config.FlowStableSec != tmp)
			{
				config.FlowStableSec = tmp;
				flags |= CfgUpdateFlags.AnyChange;
			}

			if ((flags & CfgUpdateFlags.AnyChange) != 0)
			{
				RegulValve.OnCfgChange(this, new CfgChangeArgs(CfgChangeCmd.CfgChange, config));
			}

			return flags;
		}

		int adc1;
		int pct1;

		int adc2;
		int pct2;

		private void openButton_Click(object sender, EventArgs e)
		{
			RegulValve.OnCfgChange(this, new CfgChangeArgs(CfgChangeCmd.RVOpenStep, config));
		}

		private void closeButton_Click(object sender, EventArgs e)
		{
			RegulValve.OnCfgChange(this, new CfgChangeArgs(CfgChangeCmd.RVCloseStep, config));
		}

		//
		private void getButton1_Click(object sender, EventArgs e)
		{
			RegulValve.OnCfgChange(this, new CfgChangeArgs(CfgChangeCmd.GetAdc1, config));
		}

		private void getButton2_Click(object sender, EventArgs e)
		{
			RegulValve.OnCfgChange(this, new CfgChangeArgs(CfgChangeCmd.GetAdc2, config));
		}

		private void setButton_Click(object sender, EventArgs e)
		{
			int tmpPct1;
			int tmpPct2;
			if ((int.TryParse(pctTextBox1.Text, out tmpPct1) && (tmpPct1 >= 0) && (tmpPct1 <= 100)) &&
				(int.TryParse(pctTextBox2.Text, out tmpPct2) && (tmpPct2 >= 0) && (tmpPct2 <= 100)))
			{
				pct1 = tmpPct1;
				pct2 = tmpPct2;
				UpdateValveOpenClose();
			}
		}

		void UpdateValveOpenClose()
		{
			if ((adc1 == adc2) || (pct1 == pct2)) return;

			double factor = (float)(adc2 - adc1) / (float)(pct2 - pct1);
			int adcClosed = (int)((float)(0 - pct1) * factor + (float)adc1 + 0.5f);
			int adcOpen   = (int)((float)(100 - pct1) * factor + (float)adc1 + 0.5f);

			if ((adcClosed >= 0) && (adcOpen >= 0))
			{
				adcClosedTextBox.Text = adcClosed.ToString();
				adcOpenTextBox.Text = adcOpen.ToString();
			}
		}

		#region Configuration Change Handling

		public static void OnCmdResponse(object sender, CmdResponseArgs args)
		{
			if (CmdResponseHandler == null) return;
			try { CmdResponseHandler(sender, args); }
			catch (Exception e) { log.Error("CmdResponseHandler(...) failed", e); }
		}

		public static event EventHandler<CmdResponseArgs> CmdResponseHandler;

		public void StartResponseHandler()
		{
            Handlers.AdcChangedHandler += delegate(object sndr, CmdResponseArgs args)
            {
                if (InvokeRequired) { Invoke(new EventHandler<CmdResponseArgs>(OnAdcChanged), sndr, args); }
                else OnAdcChanged(sndr, args);
            };

 			CmdResponseHandler += delegate(object sender, CmdResponseArgs args)
			{
				if (args.Command == CfgChangeCmd.GetAdc1)
                {
					adc1 = args.Response;
					adcTextBox1.Text = adc1.ToString();
				}
				else if (args.Command == CfgChangeCmd.GetAdc2)
				{
					adc2 = args.Response;
					adcTextBox2.Text = adc2.ToString();
				}
			};
		}

		public void StopResponseHandler()
		{
			CmdResponseHandler = null;
		}

        void OnAdcChanged(object sender, CmdResponseArgs data)
        {
            if (data.Command == CfgChangeCmd.GetAdc && data.Id == config.Idx1)
            {
                adcTextBox.Text = data.Response.ToString();
            }
        }

		#endregion Configuration Change Handling
	}
}