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

namespace TBF.BenchControl.DataEntry.Standard6
{
	public partial class CycleBeginningForm : Form, GenericDevices.IHasCompleted
    {
		private static readonly ILog log = LogManager.GetLogger(typeof(CycleBeginningForm));

		/// <summary> Number of text boxes for serial numbers </summary>
        public readonly int WaterMetersCount;

		/// To be retrieved after the form is closed
		public string PurchaseOrder;
		public string[] SNText;
		public bool[] Disabled;

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

		IList<ComboBox> enabledComboBoxes;

        /// <summary>
        /// Constructor
        /// </summary>
        /// <param name="waterMetersCount">Number of text boxes for serial numbers</param>
        public CycleBeginningForm(int waterMetersCount)
        {
            InitializeComponent();
			ControlBox = false;

			this.WaterMetersCount = waterMetersCount;
			SNText = new string[WaterMetersCount];
			Disabled = new bool[WaterMetersCount];
			enabledComboBoxes = new List<ComboBox>();

			Height = 147 + WaterMetersCount * 90;

			completed = false;
			StartForceCloseHandler();
        }

		/// <summary> Parameterless constructor for all watermeters </summary>
		public CycleBeginningForm()
			: this(Config.Data.WMsCount)
		{
		}

        private void CycleBeginningForm_Load(object sender, EventArgs e)
        {
			Localize();
			
			PrepareOrderCombo(orderComboBox);

			if (Program.LocalSettings.LastSNTextsCount == WaterMetersCount)
			{
				if (WaterMetersCount >= 1) comboBox1.Items.Add(Program.LocalSettings.LastSNTexts[0]);
				if (WaterMetersCount >= 2) comboBox2.Items.Add(Program.LocalSettings.LastSNTexts[1]);
				if (WaterMetersCount >= 3) comboBox3.Items.Add(Program.LocalSettings.LastSNTexts[2]);
				if (WaterMetersCount >= 4) comboBox4.Items.Add(Program.LocalSettings.LastSNTexts[3]);
				if (WaterMetersCount >= 5) comboBox5.Items.Add(Program.LocalSettings.LastSNTexts[4]);
				if (WaterMetersCount >= 6) comboBox6.Items.Add(Program.LocalSettings.LastSNTexts[5]);
			}

			if (WaterMetersCount < 1) { groupBox1.Visible = false; } else { enabledComboBoxes.Add(comboBox1); }
			if (WaterMetersCount < 2) { groupBox2.Visible = false; } else { enabledComboBoxes.Add(comboBox2); }
			if (WaterMetersCount < 3) { groupBox3.Visible = false; } else { enabledComboBoxes.Add(comboBox3); }
			if (WaterMetersCount < 4) { groupBox4.Visible = false; } else { enabledComboBoxes.Add(comboBox4); }
			if (WaterMetersCount < 5) { groupBox5.Visible = false; } else { enabledComboBoxes.Add(comboBox5); }
			if (WaterMetersCount < 6) { groupBox6.Visible = false; } else { enabledComboBoxes.Add(comboBox6); }

			Height = 147 + WaterMetersCount * 90;
		}

		void Localize()
		{
			Text = Strings.Data;
			orderGroupBox.Text = Strings.Purchase_order;

			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";

			label1.Text = Strings.Serial_Number;
			label2.Text = Strings.Serial_Number;
			label3.Text = Strings.Serial_Number;
			label4.Text = Strings.Serial_Number;
			label5.Text = Strings.Serial_Number;
			label6.Text = Strings.Serial_Number;

			okButton.Text = Strings.OkBtnText;
			clearButton.Text = Strings.ClearBtnText;
		}

		/// <summary>
		/// Load Purchase order combo box items from the LocalSettings PurchaseOrderHistory array
		/// </summary>
		/// <param name="orderComboBox">Puchase order ComboBox</param>
		void PrepareOrderCombo(ComboBox orderComboBox)
		{
			for (int i = 0; i < Program.LocalSettings.PurchaseOrderHistoryCount; i++)
			{
				orderComboBox.Items.Add(Program.LocalSettings.PurchaseOrderHistory[i]);
			}

			if (orderComboBox.Items.Count > 0)
			{
				orderComboBox.Text = orderComboBox.Items[0].ToString();
			}
		}

		private void okButton_Click(object sender, EventArgs e)
        {
			PurchaseOrder = orderComboBox.Text;
			Program.LocalSettings.UpdateHistory(orderComboBox.Text,
												ref Program.LocalSettings.PurchaseOrderHistory
#if FUZHOU150 || FUZHOU300
												, 20
#endif
												);

			Program.LocalSettings.LastSNTexts = SNText; 

            if (WaterMetersCount >= 1) { SNText[0] = comboBox1.Text; Disabled[0] = !checkBox1.Checked; }
            if (WaterMetersCount >= 2) { SNText[1] = comboBox2.Text; Disabled[1] = !checkBox2.Checked; }
            if (WaterMetersCount >= 3) { SNText[2] = comboBox3.Text; Disabled[2] = !checkBox3.Checked; }
            if (WaterMetersCount >= 4) { SNText[3] = comboBox4.Text; Disabled[3] = !checkBox4.Checked; }
            if (WaterMetersCount >= 5) { SNText[4] = comboBox5.Text; Disabled[4] = !checkBox5.Checked; }
			if (WaterMetersCount >= 6) { SNText[5] = comboBox6.Text; Disabled[5] = !checkBox6.Checked; }

            completed = true;
            Close();
        }


		private void UpdateAllCombos()
		{
			if (WaterMetersCount >= 1)
			{
				comboBox1.Text = Program.LocalSettings.LastSNTexts[0];
				checkBox1.Checked = !string.IsNullOrEmpty(comboBox1.Text);
			}
			if (WaterMetersCount >= 2)
			{
				comboBox2.Text = Program.LocalSettings.LastSNTexts[1];
				checkBox2.Checked = !string.IsNullOrEmpty(comboBox2.Text);
			}
			if (WaterMetersCount >= 3)
			{
				comboBox3.Text = Program.LocalSettings.LastSNTexts[2];
				checkBox3.Checked = !string.IsNullOrEmpty(comboBox3.Text);
			}
			if (WaterMetersCount >= 4)
			{
				comboBox4.Text = Program.LocalSettings.LastSNTexts[3];
				checkBox4.Checked = !string.IsNullOrEmpty(comboBox4.Text);
			}
			if (WaterMetersCount >= 5)
			{
				comboBox5.Text = Program.LocalSettings.LastSNTexts[4];
				checkBox5.Checked = !string.IsNullOrEmpty(comboBox5.Text);
			}
			if (WaterMetersCount >= 6)
			{
				comboBox6.Text = Program.LocalSettings.LastSNTexts[5];
				checkBox6.Checked = !string.IsNullOrEmpty(comboBox6.Text);
			}
		}

		private void comboBox1_TextChanged(object sender, EventArgs e) { checkBox1.Checked = true; }
		private void comboBox2_TextChanged(object sender, EventArgs e) { checkBox2.Checked = true; }
		private void comboBox3_TextChanged(object sender, EventArgs e) { checkBox3.Checked = true; }
		private void comboBox4_TextChanged(object sender, EventArgs e) { checkBox4.Checked = true; }
		private void comboBox5_TextChanged(object sender, EventArgs e) { checkBox5.Checked = true; }
		private void comboBox6_TextChanged(object sender, EventArgs e) { checkBox6.Checked = true; }

		private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
		{
			if (Program.LocalSettings.LastSNTextsCount == WaterMetersCount)
			{
				if (comboBox1.Text.Equals(Program.LocalSettings.LastSNTexts[0]))
					UpdateAllCombos();
			}
		}
		private void comboBox2_SelectedIndexChanged(object sender, EventArgs e)
		{
			if (Program.LocalSettings.LastSNTextsCount == WaterMetersCount)
			{
				if (comboBox2.Text.Equals(Program.LocalSettings.LastSNTexts[1]))
					UpdateAllCombos();
			}
		}
		private void comboBox3_SelectedIndexChanged(object sender, EventArgs e)
		{
			if (Program.LocalSettings.LastSNTextsCount == WaterMetersCount)
			{
				if (comboBox3.Text.Equals(Program.LocalSettings.LastSNTexts[2]))
					UpdateAllCombos();
			}
		}
		private void comboBox4_SelectedIndexChanged(object sender, EventArgs e)
		{
			if (Program.LocalSettings.LastSNTextsCount == WaterMetersCount)
			{
				if (comboBox4.Text.Equals(Program.LocalSettings.LastSNTexts[3]))
					UpdateAllCombos();
			}
		}
 		private void comboBox5_SelectedIndexChanged(object sender, EventArgs e)
		{
			if (Program.LocalSettings.LastSNTextsCount == WaterMetersCount)
			{
				if (comboBox5.Text.Equals(Program.LocalSettings.LastSNTexts[4]))
					UpdateAllCombos();
			}
		}
		private void comboBox6_SelectedIndexChanged(object sender, EventArgs e)
		{
			if (Program.LocalSettings.LastSNTextsCount == WaterMetersCount)
			{
				if (comboBox6.Text.Equals(Program.LocalSettings.LastSNTexts[5]))
					UpdateAllCombos();
			}
		}


		private void clearButton_Click(object sender, EventArgs e)
		{
			if (WaterMetersCount >= 1) { comboBox1.Text = string.Empty; checkBox1.Checked = false; }
			if (WaterMetersCount >= 2) { comboBox2.Text = string.Empty; checkBox2.Checked = false; }
			if (WaterMetersCount >= 3) { comboBox3.Text = string.Empty; checkBox3.Checked = false; }
			if (WaterMetersCount >= 4) { comboBox4.Text = string.Empty; checkBox4.Checked = false; }
			if (WaterMetersCount >= 5) { comboBox5.Text = string.Empty; checkBox5.Checked = false; }
			if (WaterMetersCount >= 6) { comboBox6.Text = string.Empty; checkBox6.Checked = false; }
		}


		#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);
			};
		}

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

		#endregion


		/// <summary>
		/// Process a key press within any enabled text boxe
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		/// <param name="currentFocusOwner">TextBox control which received the event</param>
		private void ProcKeyPress(object sender, KeyPressEventArgs e, ComboBox currentFocusOwner)
		{
			if (e.KeyChar == '+')
			{
				/// Process '+' key ..... Form completed
				okButton_Click(sender, e);
			}
			if (e.KeyChar == '\r')
			{
				/// Process <enter> key ..... Next text field
				if (enabledComboBoxes.Count < 2) return;		/// There is just one enabled textbox

				for (int i = 0; i < enabledComboBoxes.Count; i++)
				{
					if (enabledComboBoxes[i] == currentFocusOwner)
					{
						/// Change focus to the next enabled text box
						enabledComboBoxes[(i + 1) % enabledComboBoxes.Count].Focus();
						return;
					}
				}
			}
		}

		private void comboBox1_KeyPress(object sndr, KeyPressEventArgs e) { ProcKeyPress(sndr, e, comboBox1); }
		private void comboBox2_KeyPress(object sndr, KeyPressEventArgs e) { ProcKeyPress(sndr, e, comboBox2); }
		private void comboBox3_KeyPress(object sndr, KeyPressEventArgs e) { ProcKeyPress(sndr, e, comboBox3); }
		private void comboBox4_KeyPress(object sndr, KeyPressEventArgs e) { ProcKeyPress(sndr, e, comboBox4); }
		private void comboBox5_KeyPress(object sndr, KeyPressEventArgs e) { ProcKeyPress(sndr, e, comboBox5); }
		private void comboBox6_KeyPress(object sndr, KeyPressEventArgs e) { ProcKeyPress(sndr, e, comboBox6); }
	}
}