///
/// Copyright (c) 2013-2015 Sensus Metering Systems
///
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.Adjustment
{
	public partial class WMErrorsForm : Form, GenericDevices.IHasCompleted
    {
		private static readonly ILog log = LogManager.GetLogger(typeof(WMErrorsForm));

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

		///
		/// Updated in OnAdjustmentInProgress()
		///
		double[] error;						/// Created in constructor
		double errLimLo;
		double errLimHi;

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


        /// <summary>
        /// Constructor
        /// </summary>
        /// <param name="waterMetersCount">Number of text boxes for serial numbers</param>
		public WMErrorsForm(IList<GenericDevices.IWaterMeter> waterMeters)
			: this()
        {
			waterMetersCount = waterMeters.Count;

			rects = new Rectangle[waterMetersCount];
			for (int i = 0; i < waterMetersCount; i++) rects[i] = new Rectangle(385, 30 + 90 * i, 324, 57);

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

			error = new double[waterMetersCount];
		}

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

			completed = false;

			/// Attach to 'AdjustmentInProgress' handler
			UiBridge.Bridge.AdjustmentInProgressHandler += delegate(object sender, UiBridge.AdjustmentInProgressEventArgs args)
			{
				if (InvokeRequired)
				{
					Invoke(new EventHandler<UiBridge.AdjustmentInProgressEventArgs>(OnAdjustmentInProgress), sender, args);
				}
				else OnAdjustmentInProgress(sender, args);
			};
		}

        void Localize()
        {
            Text = Strings.Water_Meter_States;
            groupBox1.Text = Strings.Water_Meter + " 1";
            groupBox2.Text = Strings.Water_Meter + " 2";
            groupBox3.Text = Strings.Water_Meter + " 3";
            groupBox4.Text = Strings.Water_Meter + " 4";
            groupBox5.Text = Strings.Water_Meter + " 5";
            groupBox6.Text = Strings.Water_Meter + " 6";
			wmErrorLabel1.Text = Strings.Error_pct;
			wmErrorLabel2.Text = Strings.Error_pct;
			wmErrorLabel3.Text = Strings.Error_pct;
			wmErrorLabel4.Text = Strings.Error_pct;
			wmErrorLabel5.Text = Strings.Error_pct;
			wmErrorLabel6.Text = Strings.Error_pct;
            okButton.Text = Strings.OkBtnText;
        }

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

            Height = 50 + 90 * waterMetersCount;

            if (waterMetersCount < 1 || disabled[0]) groupBox1.Visible = false;
			if (waterMetersCount < 2 || disabled[1]) groupBox2.Visible = false;
			if (waterMetersCount < 3 || disabled[2]) groupBox3.Visible = false;
			if (waterMetersCount < 4 || disabled[3]) groupBox4.Visible = false;
			if (waterMetersCount < 5 || disabled[4]) groupBox5.Visible = false;
			if (waterMetersCount < 6 || disabled[5]) groupBox6.Visible = false;

			wmErrorTextBox1.Text = "---";
			wmErrorTextBox2.Text = "---";
			wmErrorTextBox3.Text = "---";
			wmErrorTextBox4.Text = "---";
			wmErrorTextBox5.Text = "---";
			wmErrorTextBox6.Text = "---";
		}

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

		void OnAdjustmentInProgress(object sender, UiBridge.AdjustmentInProgressEventArgs args)
		{
			string testName = args.TestName;

			Results.Entities.TestRslt tr = TBF.BenchControl.Sequences.ProcessData.BatchRslts.GetTestRslt(testName, 0);
			errLimLo = tr.ErrLimLo() + tr.Uncertainty();
			errLimHi = tr.ErrLimHi() - tr.Uncertainty();

			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) error[i] = mtr.Error;
			}

			Redraw();
		}

		void Redraw()
		{
			if (waterMetersCount > 0 && !disabled[0]) wmErrorTextBox1.Text = error[0].ToString("F1");
			if (waterMetersCount > 1 && !disabled[1]) wmErrorTextBox2.Text = error[1].ToString("F1");
			if (waterMetersCount > 2 && !disabled[2]) wmErrorTextBox3.Text = error[2].ToString("F1");
			if (waterMetersCount > 3 && !disabled[3]) wmErrorTextBox4.Text = error[3].ToString("F1");
			if (waterMetersCount > 4 && !disabled[4]) wmErrorTextBox5.Text = error[4].ToString("F1");
			if (waterMetersCount > 5 && !disabled[5]) wmErrorTextBox6.Text = error[5].ToString("F1");

			for (int i = 0; i < waterMetersCount; i++) Invalidate(rects[i]);
		}

		private void WMErrorsForm_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], error[i], errLimLo, errLimHi);
				}
			}
		}

		void PaintOne(System.Drawing.Graphics g, Rectangle r, double value, double limLo, double limHi)
		{
			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);
			Rectangle rectCent = new Rectangle(r.Left + r.Width / 2 - 1, r.Top, 3, r.Height);

			Brush redBrush = new SolidBrush(Color.FromName("Salmon"));
			Brush greenBrush = new SolidBrush(Color.FromName("LightGreen"));
			Brush centBrush = new SolidBrush(Color.FromName("Green"));

			g.FillRectangle(redBrush, rect1);
			g.FillRectangle(greenBrush, rect2);
			g.FillRectangle(redBrush, rect3);
			g.FillRectangle(centBrush, rectCent);

			int x0 = r.Left + r.Width / 2;
			int dx = r.Height / 3;
			int x = (int)((double)r.Width * (2.0 * value - limLo - limHi) / (limHi - limLo) / 6.0f + 0.5f);

			if (x0 - dx + x >= r.Left && x0 + dx + x < r.Left + r.Width)
			{
				Point[] triangle = new Point[3]
				{
					new Point(x0 - dx + x, r.Top),
					new Point(x0 + dx + x, r.Top),
					new Point(x0 + x, r.Top + 2 * r.Height / 3),
				};

				Brush blackBrush = new SolidBrush(Color.Black);
				g.FillPolygon(blackBrush, triangle);
			}
		}

		#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
	}
}