///
/// Copyright (c) 2021 Sensus Slovensko a.s.
///
using System;
using System.Linq;
using System.Windows.Forms;
using log4net;
using Common;
using Config.Entities;
using TBF.Rig.Generic;
using TBF.UI.Bench.Components;
using static System.Windows.Forms.VisualStyles.VisualStyleElement;

namespace TBF.Rig.Uni.RegValveLowRegulTimeSaturation
{
	public partial class RegValveCfgCtrl : UserControl, IComponentCfgCtrl
	{
        static readonly ILog log = LogManager.GetLogger(typeof(RegValveCfgCtrl));

        ComponentParametersDlg parent;

		public bool ShowMore { get { return true; } }

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

		public RegValveCfgCtrl()
		{
			InitializeComponent();
		}

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

			if (parent.CmpntEntities != null)
			{
				foreach (var c in parent.CmpntEntities.Where(x => x.ClassName == "ControlBoard.Uni"))
				{
    				parentNameComboBox.Items.Add(c.Name);
				}
			}

            categoryComboBox.Items.Add(ValveCategory.Feeding.ToString());
            categoryComboBox.Items.Add(ValveCategory.Output.ToString());

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

            for (Common.Unit units = 0; units < global::Common.Unit.Count; units++)
            {
                if (global::Common.Units.IsQuantity(units, Quantity.Error))
                {
                    unitsComboBox.Items.Add(units.ToString());
                }
            }

            regulMinStepsComboBox.Items.Add("0");
            regulMinStepsComboBox.Items.Add("50");
            regulMinStepsComboBox.Items.Add("100");
            regulMinStepsComboBox.Items.Add("150");
            regulMinStepsComboBox.Items.Add("200");
            regulMinStepsComboBox.Items.Add("250");
            regulMinStepsComboBox.Items.Add("300");

            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;
			categoryComboBox.Text = config.Category.ToString();
			positionTextBox.Text = config.Idx1.ToString();
			adcClosedTextBox.Text = config.AdcValueClosed.ToString();
			adcOpenTextBox.Text = config.AdcValueOpen.ToString();
			stableTimeTextBox.Text = config.StableTimeMs.ToString();
			flowStableSecTextBox.Text = config.FlowStableSec.ToString();
			storedPosReuseCheckBox.Checked = config.StoredPositionReuse;
			formatTextBox.Text = config.SetpFormat;
			unitsComboBox.Text = config.SetpUnit.ToString();
			regulMinStepsComboBox.Text = (config.RegulationMinStep * 50).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;
            categoryComboBox.Enabled = true;
            positionTextBox.Enabled = true;
			adcClosedTextBox.Enabled = true;
			adcOpenTextBox.Enabled = true;
            stableTimeTextBox.Enabled = true;
            flowStableSecTextBox.Enabled = true;
            storedPosReuseCheckBox.Enabled = true;
            formatTextBox.Enabled = true;
            unitsComboBox.Enabled = true;
			regulMinStepsComboBox.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 (!categoryComboBox.Text.Equals(ValveCategory.Feeding.ToString()) &&
                !categoryComboBox.Text.Equals(ValveCategory.Output.ToString()))
            {
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "Invalid 'Category'";
            }

			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";
            }

            if (!unitsComboBox.Items.Contains(unitsComboBox.Text))
            {
                flags |= CfgUpdateFlags.Error;
                message += Environment.NewLine + "Invalid 'Units'";
            }

			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;
			}

            ValveCategory newCategory;
            if (categoryComboBox.Text.Equals(ValveCategory.Feeding.ToString()))      newCategory = ValveCategory.Feeding;
            else if (categoryComboBox.Text.Equals(ValveCategory.Output.ToString()))  newCategory = ValveCategory.Output;
            else                                                                     newCategory = ValveCategory.None;
            if (newCategory != config.Category)
            {
                config.Category = newCategory;
                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;
			}

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

			tmp = regulMinStepsComboBox.SelectedIndex;
            if (config.RegulationMinStep != tmp)
            {
                config.RegulationMinStep = tmp;
                flags |= CfgUpdateFlags.AnyChange;
            }

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

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

            config.SetpFormat = formatTextBox.Text;
            config.SetpUnit = global::Common.Unit.None;
            for (Common.Unit units = 0; units < global::Common.Unit.Count; units++)
            {
                if (unitsComboBox.Text == units.ToString())
                {
                    config.SetpUnit = units;
                    break;
                }
            }

            return flags;
		}

		int adc1;
		int pct1;

		int adc2;
		int pct2;

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

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

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

		private void getButton2_Click(object sender, EventArgs e)
		{
			RegValve.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();
			}
		}

        private void regulMinStepsComboBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (regulMinStepsComboBox.SelectedItem != null)
            {
				//config.RegulationMinStep = regulMinStepsComboBox.SelectedIndex;
            }
        }
        #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
	}
}