///
/// Copyright (c) 2017 Sensus Metering Systems
///
using System;
using System.Windows.Forms;
using log4net;
using TBF.BenchControl.Generic;

namespace TBF.BenchControl.Network.Camera.Roi
{
	public partial class RoiCfgCtrl : UserControl, IComponentCfgCtrl
	{
		static readonly ILog log = LogManager.GetLogger(typeof(RoiCfgCtrl));

		ComponentParametersDlg parent;

		public bool ShowMore { get { return false; } }

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

		public RoiCfgCtrl()
		{
			InitializeComponent();
		}

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

			previousRoiComboBox.Items.Add("---");
			if (parent.TbfComponents != null)
			{
				foreach (var cmpnt in parent.TbfComponents)
				{
					if (TbfComponents.CmpntFactoryFromClassName(cmpnt.ClassName) is TBF.BenchControl.Network.Camera.CLP1611.Factory)
					{
						parentNameComboBox.Items.Add(cmpnt.Name);
					}
					if (TbfComponents.CmpntFactoryFromClassName(cmpnt.ClassName) is TBF.BenchControl.Network.Camera.Roi.Factory)
					{
						previousRoiComboBox.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;
			previousRoiComboBox.Text = string.IsNullOrEmpty(config.PreviousRoi) ? "---" : config.PreviousRoi;
			argsTextBox.Text = config.RoiParams;
		}

		public void Unlock()
		{
			nameTextBox.Enabled = true;
			parentNameComboBox.Enabled = true;
			previousRoiComboBox.Enabled = true;
			argsTextBox.Enabled = true;
		}

		public CfgUpdateFlags UpdateCfg()
		{
			CfgUpdateFlags flags = CfgUpdateFlags.None;

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

            if (config.Name != nameTextBox.Text)
            {
                config.Name = nameTextBox.Text;
                flags |= (CfgUpdateFlags.RestartRqrd | CfgUpdateFlags.AnyChange);
            }
            
            string newParentName = parentNameComboBox.Text.Equals("---") ? string.Empty : parentNameComboBox.Text;
            if (config.ParentName != newParentName)
            {
                config.ParentName = newParentName;
                flags |= (CfgUpdateFlags.RestartRqrd | CfgUpdateFlags.AnyChange);
            }

            string newPreviousRoi = previousRoiComboBox.Text.Equals("---") ? string.Empty : previousRoiComboBox.Text;
            if (config.PreviousRoi != newPreviousRoi)
            {
                config.PreviousRoi = newPreviousRoi;
                flags |= (CfgUpdateFlags.RestartRqrd | CfgUpdateFlags.AnyChange);
            }
			
            if (config.RoiParams != argsTextBox.Text)
            {
                config.RoiParams = argsTextBox.Text;
                flags |= CfgUpdateFlags.AnyChange;
                Roi.OnCfgChange(this, new CfgChangeArgs(CfgChangeCmd.CfgChange, config));
            }

			return flags;
		}

		public CfgUpdateFlags VerifyCfg(ref string message)
		{
            CfgUpdateFlags flags = CfgUpdateFlags.None;

			if (!parentNameComboBox.Items.Contains(parentNameComboBox.Text))
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "Invalid 'Parent Name'";
			}

			if (!previousRoiComboBox.Items.Contains(previousRoiComboBox.Text))
			{
				flags |= CfgUpdateFlags.Error;
				message += Environment.NewLine + "Invalid 'Previous RoI'";
			}

			return flags;
		}

        #region Configuration Change Handling

        public static void OnCmdResponse(object sender, CmdResponseArgs args)
        {
            if (CmdResponseHandler == null) return;
            try { CmdResponseHandler(sender, args); }
            catch (Exception e) { log.Error("CmdResponseHandler(...) failed", e); }
        }

        public static event EventHandler<CmdResponseArgs> CmdResponseHandler;

        public void StartResponseHandler() { }
        public void StopResponseHandler() { }

        #endregion Configuration Change Handling
    }
}