///
/// Copyright (c) 2013-2016 Sensus Metering Systems
///
using System;
using System.Globalization;
using System.IO;
using System.Text;
using System.Windows.Forms;
using log4net;
using TBF.BenchControl.Generic;

namespace TBF.BenchControl.Elde.TempMeter
{
	public partial class TempMeterCfgCtrl : UserControl, IComponentCfgCtrl
	{
		static readonly ILog log = LogManager.GetLogger(typeof(TempMeterCfgCtrl));

		static string lastImportFileName;

		ComponentParametersDlg parent;

		public bool ShowMore { get { return false; } }

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

		public TempMeterCfgCtrl()
		{
			InitializeComponent();
		}

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

			if (parent.TbfComponents != null)
			{
				foreach (var cmpnt in parent.TbfComponents)
				{
					if (TbfComponents.CmpntFactoryFromClassName(cmpnt.ClassName) is Elde.ControlBoardFactory)
					{
						parentNameComboBox.Items.Add(cmpnt.Name);
					}
				}
			}

			Redraw();
		}

		public void Closing()
		{
		}

		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;
			positionTextBox.Text = config.Idx0.ToString();
			a1TextBox.Text = config.A1.ToString();
			a2TextBox.Text = config.A2.ToString();
			a3TextBox.Text = config.A3.ToString();
			a4TextBox.Text = config.A4.ToString();
			a5TextBox.Text = config.A5.ToString();
			defaultTempTextBox.Text = config.DefaultTemperature.ToString();
		}

		public void Unlock()
		{
			nameTextBox.Enabled = true;
			parentNameComboBox.Enabled = true;
			positionTextBox.Enabled = true;
			importButton.Enabled = true;
			a1TextBox.Enabled = true;
			a2TextBox.Enabled = true;
			a3TextBox.Enabled = true;
			a4TextBox.Enabled = true;
			a5TextBox.Enabled = true;
			defaultTempTextBox.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 (!int.TryParse(positionTextBox.Text, out dummy) || dummy < 0 || dummy > 7)
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'Position' should be between 0 and 7";
			}

			double fdummy;
			if (!Utils.TryParseEDouble(a1TextBox.Text, out fdummy))
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'A1' is not valid";
			}

			if (!Utils.TryParseEDouble(a2TextBox.Text, out fdummy))
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'A2' is not valid";
			}

			if (!Utils.TryParseEDouble(a3TextBox.Text, out fdummy))
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'A3' is not valid";
			}

			if (!Utils.TryParseEDouble(a4TextBox.Text, out fdummy))
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'A4' is not valid";
			}

			if (!Utils.TryParseEDouble(a5TextBox.Text, out fdummy))
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'A5' is not valid";
			}

			if (!Utils.TryParseEDouble(defaultTempTextBox.Text, out fdummy))
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "'Default temperature' is not valid";
			}

			return flags;
		}

		public CfgUpdateFlags UpdateCfg()
		{
			CfgUpdateFlags flags = CfgUpdateFlags.RestartRqrd;

			if (config == null) return CfgUpdateFlags.Error;	/// Control was not loaded, settings were not changed

			config.Name = nameTextBox.Text;
			config.ParentName = parentNameComboBox.Text.Equals("---") ? string.Empty : parentNameComboBox.Text;
			config.Idx0 = int.Parse(positionTextBox.Text);
            bool updateOk = Utils.TryParseEDouble(a1TextBox.Text, out config.A1) &&
							Utils.TryParseEDouble(a2TextBox.Text, out config.A2) &&
							Utils.TryParseEDouble(a3TextBox.Text, out config.A3) &&
							Utils.TryParseEDouble(a4TextBox.Text, out config.A4) &&
							Utils.TryParseEDouble(a5TextBox.Text, out config.A5) &&
							Utils.TryParseEDouble(defaultTempTextBox.Text, out config.DefaultTemperature);

			return flags;
		}

		private void importButton_Click(object sender, EventArgs e)
		{
			OpenFileDialog dlg = new OpenFileDialog();
			if (!string.IsNullOrEmpty(lastImportFileName)) dlg.FileName = lastImportFileName;
			if (dlg.ShowDialog() == DialogResult.OK)
			{
				try
				{
					using (TextReader reader = new StreamReader(dlg.FileName))
					{
						double tmp;
						string lineID = string.Format("Calch{0} =", positionTextBox.Text);

						do
						{
							string line = reader.ReadLine();
							if (line != null && line.IndexOf(lineID) == 0)
							{
								string[] factors = line.Substring(lineID.Length).Split(new char[] { ',' });
								int count = factors.Length;
								if (count >= 1 && Utils.TryParseEDouble(factors[0].Trim(), out tmp)) a1TextBox.Text = factors[0].Trim();
								if (count >= 2 && Utils.TryParseEDouble(factors[1].Trim(), out tmp)) a2TextBox.Text = factors[1].Trim();
								if (count >= 3 && Utils.TryParseEDouble(factors[2].Trim(), out tmp)) a3TextBox.Text = factors[2].Trim();
								if (count >= 4 && Utils.TryParseEDouble(factors[3].Trim(), out tmp)) a4TextBox.Text = factors[3].Trim();
								if (count >= 5 && Utils.TryParseEDouble(factors[4].Trim(), out tmp)) a5TextBox.Text = factors[4].Trim();
								lastImportFileName = dlg.FileName;
								break;
							}
						}
						while (lineID != null);
					}
				}
				catch
				{
					MessageBox.Show("Import failed", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
				}
			}
		}
	}
}