using System;
using System.Windows.Forms;
using TBF.BenchControl.Generic;

namespace TBF.BenchControl.Elde
{
	public partial class ControlBoardCfgCtrl : UserControl, IComponentCfgCtrl
	{
		ControlBoardCfg config;
		public IComponentCfg Config
		{
			get { return config as IComponentCfg; }
			set
			{
				config = value as ControlBoardCfg;
				Redraw();
			}
		}

		public ControlBoardCfgCtrl()
		{
			InitializeComponent();
		}

		private void ControlBoardCfgCtrl_Load(object sender, EventArgs e)
		{
			Redraw();
		}

		void Redraw()
		{
			if (config == null) return;			/// Control was not loaded, settings were not changed

			classNameLabel.Text = config.Factory.ClassName;
			nameTextBox.Text = config.Name;
			comPortNrTextBox.Text = config.ComPortNr.ToString();
		}

		public void Unlock()
		{
			nameTextBox.Enabled = true;
			comPortNrTextBox.Enabled = true;
		}

		/// <summary>
		/// Verify current user controls for validity.
		/// Called when user wants to close/save the configuration.
		/// </summary>
		/// <returns>See VerifyFlags</returns>
		public CfgVerifyFlags VerifyCfg(ref string message)
		{
			CfgVerifyFlags flags = CfgVerifyFlags.None;

			int dummy;
			if (!int.TryParse(comPortNrTextBox.Text, out dummy) || dummy <= 0 || dummy > 999)
			{
				message += "Control board serial port number is invalid";
				flags |= CfgVerifyFlags.Error;
			}
			
			return flags;
		}

		/// <summary>
		/// Save settings to the configuration class.
		/// </summary>
		public void UpdateCfg()
		{
			if (config == null) return;			/// Control was not loaded, settings were not changed
												/// 
			this.Name = nameTextBox.Text;												
			this.config.ComPortNr = int.Parse(comPortNrTextBox.Text);
		}
	}
}