///
/// Copyright (c) 2013-2017 Sensus Metering Systems
///
using System;
using System.Windows.Forms;
using log4net;
using TBF.BenchControl.GenericDevices;
using TBF.Resources;

namespace TBF.BenchControl.DataEntry.Munich3
{
	public partial class TestStartEndForm : Form, GenericDevices.IHasCompleted
    {
		private static readonly ILog log = LogManager.GetLogger(typeof(TestStartEndForm));

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

		/// <summary> Number of water meters </summary>
        public readonly int WaterMetersCount;
		readonly IRegisterReader[] regReaders;
		readonly bool[] disabled;

		// To be retrieved after the form closes
		public double[] WMStartState;

		// To be retrieved after the form closes
		public readonly string[] WMStartStateStr;

		// To be retrieved after the form closes
        public double[] WMEndState;

		bool endStates;			/// false=start states, true=end states
		double refVolume;
		double warningLimLo;	/// limit to display exclamation mark, typically 2x errLimLo
		double warningLimHi;	/// limit to display exclamation mark, typically 2x errLimHi

		GroupBox[] groupBoxes;
		Label[] labels;
		TextBox[] startTextBoxes;
		TextBox[] endTextBoxes;
		Label[] exclamations;


		public TestStartEndForm()
		{
			InitializeComponent();
			ControlBox = false;

			groupBoxes = new GroupBox[] { groupBox1, groupBox2, groupBox3, groupBox4, groupBox5, groupBox6 };
			labels = new Label[] { label1,  label2,  label3,  label4,  label5,  label6 };
			startTextBoxes = new TextBox[] { startTextBox1, startTextBox2, startTextBox3, startTextBox4, startTextBox5, startTextBox6 };
			endTextBoxes = new TextBox[] { endTextBox1, endTextBox2, endTextBox3, endTextBox4, endTextBox5, endTextBox6 };
			exclamations = new Label[] { exclamation1, exclamation2, exclamation3, exclamation3, exclamation4, exclamation5 };

			completed = false;
			StartForceCloseHandler();
		}

		/// <summary>
		/// Constructor to fill in start states
		/// </summary>
		/// <param name="waterMetersCount">Number of text boxes for serial numbers</param>
		public TestStartEndForm(int waterMetersCount, IRegisterReader[] regReaders, bool[] disabled)
			: this()
		{
			endStates = false;

			this.regReaders = regReaders;
			this.WaterMetersCount = Math.Min(waterMetersCount, regReaders.Length);
			this.disabled = disabled;

			WMStartState = new double[waterMetersCount];
			WMStartStateStr = new string[waterMetersCount];

			Height = 70 + 90 * WaterMetersCount;
		}

        /// <summary>
        /// Constructor to fill in end states
        /// </summary>
        /// <param name="waterMetersCount">Number of text boxes for serial numbers</param>
		public TestStartEndForm(int waterMetersCount, IRegisterReader[] regReaders, string[] wmStartStateStr, bool[] disabled,
								double refVolume, double errLimLo, double errLimHi)
			: this()
        {
			endStates = true;

			this.regReaders = regReaders;
			this.WaterMetersCount = Math.Min(waterMetersCount, regReaders.Length);
			this.WMStartStateStr = wmStartStateStr;
			if (wmStartStateStr == null || wmStartStateStr.Length != this.WaterMetersCount)
				throw (new Exception("Invalid 'wmStartStateStr' argument"));
			this.disabled = disabled;
            this.refVolume = refVolume;
            this.warningLimLo = 2 * errLimLo;
            this.warningLimHi = 2 * errLimHi;

            WMEndState = new double[waterMetersCount];

			Height = 70 + 90 * WaterMetersCount;
		}

		private void TestStartEndForm_Load(object sender, EventArgs e)
		{
			/// First 'WaterMetersCount' positions
			for (int i = 0; i < WaterMetersCount; i++)
			{
				if (disabled.Length > i && regReaders[i] == null) disabled[i] = true;

				if (endStates)
				{
					startTextBoxes[i].Text = WMStartStateStr[i];
					endTextBoxes[i].Enabled = (disabled.Length > i && !disabled[i]);
				}
				else
				{
					startTextBoxes[i].Enabled = (disabled.Length > i && !disabled[i]);
				}
			}

			/// Remaining positions
			for (int i = WaterMetersCount; i < 6; i++)
			{
				groupBoxes[i].Visible = false;
			}

			Localize();
		}

		void Localize()
		{
			Text = Strings.Water_Meter_States;
			startLabel.Text = Strings.Start;
			endLabel.Text = Strings.End;
			okButton.Text = Strings.OkBtnText;

			for (int i = 0; i < WaterMetersCount; i++)
			{
				groupBoxes[i].Text = string.Format("{0} {1}", Strings.Water_Meter, i + 1);
				if (disabled.Length > i && !disabled[i])
				{
					labels[i].Text = string.Format("{0} [{1}]", Strings.State, GetUnitStr(regReaders[i].PulsesPerLtr));
				}
				else
				{
					labels[i].Text = string.Empty;
				}
			}
		}


		string GetUnitStr(double pulsesPerLtr)
		{
			if (pulsesPerLtr == 1 || pulsesPerLtr <= float.Epsilon)
			{
				return "l";
			}
			else if (pulsesPerLtr == 0.001)
			{
				return "m3";
			}
			else if (pulsesPerLtr == 1000)
			{
				return "ml";
			}
			else
			{
				return string.Format("{0} l", 1/pulsesPerLtr);
			}
		}


		private void okButton_Click(object sender, EventArgs e)
		{
            try
            {
				if (endStates)
				{
					for (int i = 0; i < WaterMetersCount; i++)
					{
						if (endTextBoxes[i].Enabled) WMEndState[i] = Utils.ParseUDouble(endTextBoxes[i].Text) * regReaders[i].LtrsPerPulse;
					}
				}
				else
				{
					for (int i = 0; i < WaterMetersCount; i++)
					{
						if (startTextBoxes[i].Enabled)
						{
							WMStartStateStr[i] = startTextBoxes[i].Text;
							WMStartState[i] = Utils.ParseUDouble(startTextBoxes[i].Text) * regReaders[i].LtrsPerPulse;
						}
					}
				}
			}
            catch
            {
                return;
            }

			completed = true;
			Close();
		}

		#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


		private void endTextBox1_TextChanged(object sender, EventArgs e) { EndTextChanged(0); }
		private void endTextBox2_TextChanged(object sender, EventArgs e) { EndTextChanged(1); }
		private void endTextBox3_TextChanged(object sender, EventArgs e) { EndTextChanged(2); }
		private void endTextBox4_TextChanged(object sender, EventArgs e) { EndTextChanged(3); }
		private void endTextBox5_TextChanged(object sender, EventArgs e) { EndTextChanged(4); }
		private void endTextBox6_TextChanged(object sender, EventArgs e) { EndTextChanged(5); }

		void EndTextChanged(int i)
		{
			double err = 0;
			try
			{
				double endState = Utils.ParseUDouble(endTextBoxes[i].Text) * regReaders[i].LtrsPerPulse; ;
				double startState = Utils.ParseUDouble(startTextBoxes[i].Text) * regReaders[i].LtrsPerPulse; ;
				err = 100.0 * (endState - startState - refVolume) / refVolume;
			}
			catch { err = 1000.0f; };

			exclamations[i].Visible = (err < warningLimLo) || (warningLimHi < err);
		}


		private void startTextBox1_KeyPress(object sender, KeyPressEventArgs e)
		{
			if (e.KeyChar == '\r')
			{
				if (startTextBox2.Enabled) startTextBox2.Focus();
				else if (startTextBox3.Enabled) startTextBox3.Focus();
				else if (startTextBox4.Enabled) startTextBox4.Focus();
				else if (startTextBox5.Enabled) startTextBox5.Focus();
				else if (startTextBox6.Enabled) startTextBox6.Focus();
			}
			else if (e.KeyChar == '+') okButton_Click(sender, e);
		}

		private void startTextBox2_KeyPress(object sender, KeyPressEventArgs e)
		{
			if (e.KeyChar == '\r')
			{
				if (startTextBox3.Enabled) startTextBox3.Focus();
				else if (startTextBox4.Enabled) startTextBox4.Focus();
				else if (startTextBox5.Enabled) startTextBox5.Focus();
				else if (startTextBox6.Enabled) startTextBox6.Focus();
				else if (startTextBox1.Enabled) startTextBox1.Focus();
			}
			else if (e.KeyChar == '+') okButton_Click(sender, e);
		}

		private void startTextBox3_KeyPress(object sender, KeyPressEventArgs e)
		{
			if (e.KeyChar == '\r')
			{
				if (startTextBox4.Enabled) startTextBox4.Focus();
				else if (startTextBox5.Enabled) startTextBox5.Focus();
				else if (startTextBox6.Enabled) startTextBox6.Focus();
				else if (startTextBox1.Enabled) startTextBox1.Focus();
				else if (startTextBox2.Enabled) startTextBox2.Focus();
			}
			else if (e.KeyChar == '+') okButton_Click(sender, e);
		}

		private void startTextBox4_KeyPress(object sender, KeyPressEventArgs e)
		{
			if (e.KeyChar == '\r')
			{
				if (startTextBox5.Enabled) startTextBox5.Focus();
				else if (startTextBox6.Enabled) startTextBox6.Focus();
				else if (startTextBox1.Enabled) startTextBox1.Focus();
				else if (startTextBox2.Enabled) startTextBox2.Focus();
				else if (startTextBox3.Enabled) startTextBox3.Focus();
			}
			else if (e.KeyChar == '+') okButton_Click(sender, e);
		}

		private void startTextBox5_KeyPress(object sender, KeyPressEventArgs e)
		{
			if (e.KeyChar == '\r')
			{
				if (startTextBox6.Enabled) startTextBox6.Focus();
				else if (startTextBox1.Enabled) startTextBox1.Focus();
				else if (startTextBox2.Enabled) startTextBox2.Focus();
				else if (startTextBox3.Enabled) startTextBox3.Focus();
				else if (startTextBox4.Enabled) startTextBox4.Focus();
			}
			else if (e.KeyChar == '+') okButton_Click(sender, e);
		}

		private void startTextBox6_KeyPress(object sender, KeyPressEventArgs e)
		{
			if (e.KeyChar == '\r')
			{
				if (startTextBox1.Enabled) startTextBox1.Focus();
				else if (startTextBox1.Enabled) startTextBox1.Focus();
				else if (startTextBox3.Enabled) startTextBox3.Focus();
				else if (startTextBox4.Enabled) startTextBox4.Focus();
				else if (startTextBox5.Enabled) startTextBox5.Focus();
			}
			else if (e.KeyChar == '+') okButton_Click(sender, e);
		}

		private void endTextBox1_KeyPress(object sender, KeyPressEventArgs e)
		{
			if (e.KeyChar == '\r')
			{
				if (endTextBox2.Enabled) endTextBox2.Focus();
				else if (endTextBox3.Enabled) endTextBox3.Focus();
				else if (endTextBox4.Enabled) endTextBox4.Focus();
				else if (endTextBox5.Enabled) endTextBox5.Focus();
				else if (endTextBox6.Enabled) endTextBox6.Focus();
			}
			else if (e.KeyChar == '+') okButton_Click(sender, e);
		}

		private void endTextBox2_KeyPress(object sender, KeyPressEventArgs e)
		{
			if (e.KeyChar == '\r')
			{
				if (endTextBox3.Enabled) endTextBox3.Focus();
				else if (endTextBox4.Enabled) endTextBox4.Focus();
				else if (endTextBox5.Enabled) endTextBox5.Focus();
				else if (endTextBox6.Enabled) endTextBox6.Focus();
				else if (endTextBox1.Enabled) endTextBox1.Focus();
			}
			else if (e.KeyChar == '+') okButton_Click(sender, e);
		}

		private void endTextBox3_KeyPress(object sender, KeyPressEventArgs e)
		{
			if (e.KeyChar == '\r')
			{
				if (endTextBox4.Enabled) endTextBox4.Focus();
				else if (endTextBox5.Enabled) endTextBox5.Focus();
				else if (endTextBox6.Enabled) endTextBox6.Focus();
				else if (endTextBox1.Enabled) endTextBox1.Focus();
				else if (endTextBox2.Enabled) endTextBox2.Focus();
			}
			else if (e.KeyChar == '+') okButton_Click(sender, e);
		}

		private void endTextBox4_KeyPress(object sender, KeyPressEventArgs e)
		{
			if (e.KeyChar == '\r')
			{
				if (endTextBox5.Enabled) endTextBox5.Focus();
				else if (endTextBox6.Enabled) endTextBox6.Focus();
				else if (endTextBox1.Enabled) endTextBox1.Focus();
				else if (endTextBox2.Enabled) endTextBox2.Focus();
				else if (endTextBox3.Enabled) endTextBox3.Focus();
			}
			else if (e.KeyChar == '+') okButton_Click(sender, e);
		}

		private void endTextBox5_KeyPress(object sender, KeyPressEventArgs e)
		{
			if (e.KeyChar == '\r')
			{
				if (endTextBox6.Enabled) endTextBox6.Focus();
				else if (endTextBox1.Enabled) endTextBox1.Focus();
				else if (endTextBox2.Enabled) endTextBox2.Focus();
				else if (endTextBox3.Enabled) endTextBox3.Focus();
				else if (endTextBox4.Enabled) endTextBox4.Focus();
			}
			else if (e.KeyChar == '+') okButton_Click(sender, e);
		}

		private void endTextBox6_KeyPress(object sender, KeyPressEventArgs e)
		{
			if (e.KeyChar == '\r')
			{
				if (endTextBox1.Enabled) endTextBox1.Focus();
				else if (endTextBox1.Enabled) endTextBox1.Focus();
				else if (endTextBox3.Enabled) endTextBox3.Focus();
				else if (endTextBox4.Enabled) endTextBox4.Focus();
				else if (endTextBox5.Enabled) endTextBox5.Focus();
			}
			else if (e.KeyChar == '+') okButton_Click(sender, e);
		}
	}
}