///
/// Copyright (c) 2018 Sensus Slovensko a.s.
///
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
using log4net;
using Config.Entities;
using TBF.Resources;

namespace TBF.BenchControl.TestMethods.PulsesTest
{
	public partial class WMPulsesForm12 : Form, GenericDevices.IHasCompleted
    {
		private static readonly ILog log = LogManager.GetLogger(typeof(WMPulsesForm12));

		const int MaxWMsCount = 12;			/// Implementation limit of this form

		///
		/// Updated in constructor
		/// 
		readonly int waterMetersCount;		/// Number of text boxes for serial numbers
		readonly bool[] disabled;
		int textBoxesCount;
		Label[] labels;
		TextBox[] pulsesCountTextBox;
		Rectangle[] rects;

		///
		/// Updated in OnAdjustmentInProgress()
		///
		double[] pulsesCount;						/// Created in constructor
		double minPulsesCount;

		///
		/// Set to 'true' when the form closes
		///
		public bool Completed { get { return completed; } }
		bool completed;


		/// <summary> Parameterless constructor for 3 watermeters </summary>
		public WMPulsesForm12()
		{
			InitializeComponent();
			ControlBox = false;

			textBoxesCount = MaxWMsCount;

			labels = new Label[MaxWMsCount]
				{
					wmPulsesCountLabel1, wmPulsesCountLabel2, wmPulsesCountLabel3, wmPulsesCountLabel4,
                    wmPulsesCountLabel5, wmPulsesCountLabel6, wmPulsesCountLabel7, wmPulsesCountLabel8,
                    wmPulsesCountLabel9, wmPulsesCountLabel10, wmPulsesCountLabel11, wmPulsesCountLabel12,
				};
			pulsesCountTextBox = new TextBox[MaxWMsCount]
				{
					wmPulsesCountTextBox1, wmPulsesCountTextBox2, wmPulsesCountTextBox3, wmPulsesCountTextBox4,
                    wmPulsesCountTextBox5, wmPulsesCountTextBox6, wmPulsesCountTextBox7, wmPulsesCountTextBox8,
                    wmPulsesCountTextBox9, wmPulsesCountTextBox10, wmPulsesCountTextBox11, wmPulsesCountTextBox12,
				};

			rects = new Rectangle[MaxWMsCount];
			for (int i = 0; i < MaxWMsCount; i++)
			{
				int row = i % 12;
				int col = i / 12;
				rects[i] = new Rectangle(350 + col * 557, 25 + row * 47, 230, 37);
			}

			completed = false;
            minPulsesCount = 1;            /// Must be >0 so that initially the indication is RED

			/// Attach to 'AdjustmentInProgress' handler
            UiBridge.Bridge.PulsesTestInProgressHandler += delegate(object sender, UiBridge.PulsesTestInProgressEventArgs args)
			{
				if (InvokeRequired)
				{
					Invoke(new EventHandler<UiBridge.PulsesTestInProgressEventArgs>(OnPulsesTestInProgress), sender, args);
				}
				else OnPulsesTestInProgress(sender, args);
			};
		}
		
		/// <summary>
        /// Constructor
        /// </summary>
        /// <param name="waterMetersCount">Number of text boxes for serial numbers</param>
        public WMPulsesForm12(IList<GenericDevices.IWaterMeter> waterMeters)
			: this()
        {
            waterMetersCount = waterMeters.Count;

			ShuffleTextBoxes(waterMetersCount, Config.Data.LineSize);

			disabled = new bool[waterMetersCount];
			for (int i = 0; i < waterMetersCount; i++) disabled[i] = waterMeters[i].Disabled;

			pulsesCount = new double[waterMetersCount];
		}


		/// <summary>
		/// Make sure the layout of labels/text boxes on the screen
		/// corresponds to the layout of watermeters of the test bench.
		/// </summary>
		/// <param name="wmsCount">Number of watermeters</param>
		/// <param name="lineSize">Number of watermeters in one line</param>
		void ShuffleTextBoxes(int wmsCount, int lineSize)
		{
			if (wmsCount < textBoxesCount && lineSize > 0)
			{
				int nrLines = (wmsCount + lineSize - 1) / lineSize;
				int gap = (textBoxesCount - wmsCount) / nrLines;

				int dest = 0;
				for (int l = 0; l < nrLines; l++)
				{
					for (int i = 0; i < lineSize; i++)
					{
						labels[dest] = labels[l * lineSize + l * gap + i];
						pulsesCountTextBox[dest] = pulsesCountTextBox[l * lineSize + l * gap + i];
						rects[dest] = rects[l * lineSize + l * gap + i];
						dest++;
					}
				}
				textBoxesCount = wmsCount;
			}
		}


		void Localize()
        {
            Text = Strings.Water_Meter_States;
			for (int i = 0; i < textBoxesCount; i++)
			{
                labels[i].Text = string.Format("WM{0} {1}", i + 1, Strings.Pulses_);
			}
            okButton.Text = Strings.OkBtnText;
        }

		private void WMPulsesForm12_Load(object sender, EventArgs e)
		{
            Localize();

            //Height = 50 + 90 * WaterMetersCount;

			for (int i = 0; i < textBoxesCount; i++)
			{
				labels[i].Visible = pulsesCountTextBox[i].Visible = (disabled == null || i >= disabled.Length || !disabled[i]);
				pulsesCountTextBox[i].Text = "---";
			}
		}

		private void okButton_Click(object sender, EventArgs e)
		{
			completed = true;
			Close();
		}

		void OnPulsesTestInProgress(object sender, UiBridge.PulsesTestInProgressEventArgs args)
		{
			string testName = args.TestName;
            minPulsesCount = args.MinPulsesCount;

			Results.Entities.TestRslt tr = TBF.BenchControl.Sequences.ProcessData.BatchRslts.GetTestRslt(testName, 0);

			int count = Math.Min(waterMetersCount, TBF.BenchControl.Sequences.ProcessData.BatchRslts.WMPositionsCount);
			for (int i = 0; i < count; i++)
			{
				Results.Entities.MeterTestRslt mtr = TBF.BenchControl.Sequences.ProcessData.BatchRslts.GetMeterTestRslt(testName, i, CompoundMeterId.Single);
                if (mtr != null) pulsesCount[i] = mtr.PulsesMeter;
			}

			Redraw();
		}

		void Redraw()
		{
			for (int i = 0; i < textBoxesCount; i++)
			{
				pulsesCountTextBox[i].Text = pulsesCount[i].ToString("F0");
				Invalidate(rects[i]);
			}
		}

		private void WMPulsesForm12_Paint(object sender, PaintEventArgs e)
		{
			System.Drawing.Graphics graphics = this.CreateGraphics();

			for (int i = 0; i < waterMetersCount; i++)
			{
				if (!disabled[i])
				{
					PaintOne(graphics, rects[i], pulsesCount[i], minPulsesCount);
				}
			}
		}

		void PaintOne(System.Drawing.Graphics g, Rectangle r, double value, double limLo)
		{
			Rectangle rect1 = new Rectangle(r.Left, r.Top, r.Width / 3, r.Height);
			Rectangle rect2 = new Rectangle(r.Left + r.Width / 3, r.Top, r.Width / 3, r.Height);
			Rectangle rect3 = new Rectangle(r.Left + 2 * (r.Width / 3), r.Top, r.Width / 3, r.Height);

            Brush redBrush = new SolidBrush(Color.FromName("Salmon"));
            Brush greenBrush = new SolidBrush(Color.FromName("LightGreen"));
            Brush centBrush = new SolidBrush(Color.FromName("Green"));
            if (value >= limLo)
            {
                g.FillRectangle(greenBrush, rect2);
            }
            else
            {
                g.FillRectangle(redBrush, rect2);
            }
        }

		#region Forced close handling

		public void StartForceCloseHandler()
		{
			UiBridge.Bridge.CloseModelessFormHandler += delegate(object sender, EventArgs args)
			{
				if (InvokeRequired) { Invoke(new EventHandler<EventArgs>(OnForceClose), sender, args); }
				else OnForceClose(sender, args);
			};
		}

		void OnForceClose(object sender, EventArgs args)
		{
			DialogResult = DialogResult.Cancel;
			Close();
		}

		#endregion
	}
}