///
/// Copyright (c) 2017 Sensus Metering Systems
///
using System;
using System.Collections.Generic;
using System.Text;
using log4net;
using Config.Entities;

namespace TBF.BenchControl.Various.ErrorFlags
{
	public class Errors : ComponentBase, GenericDevices.IErrorFlags
	{
		/// TODO: Implement support for sharing one camera by multiple ROI-s

		private static readonly ILog log = LogManager.GetLogger(typeof(Errors));
		public override string ToString()
		{
			return string.Format("{0}({1})", this.GetType().Namespace.Substring(17), Cfg.ToString(1));
		}

		///
		/// Cfg 
		///
		readonly ErrorsCfg errorsCfg;

		public ErrorFlagsMode Mode { get { return errorsCfg.TestParams.Mode; } }

		public int GetErrorFlags()
		{
			if (Mode != ErrorFlagsMode.Info && Mode != ErrorFlagsMode.On) return 0;		/// return 0 when Mode == ErrorFlagsMode.Off

			/// TODO : Return real error conditions
			return 0;
		}


		public Errors()
		{
		}

		public Errors(Generic.IComponentCfg cfg, IList<Generic.IComponent> components)
            : base(cfg)
        {
			errorsCfg = cfg as ErrorsCfg;

			StartChangeHandler();

			log.Debug(this.ToString());
		}

        #region Configuration Change Handling

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

        public static event EventHandler<CfgChangeArgs> CfgChangeHandler;

        public override void StartChangeHandler()
        {
            CfgChangeHandler += delegate(object sender, CfgChangeArgs args)
            {
                ErrorsCfg tmpcfg = args.Cfg as ErrorsCfg;
                if (tmpcfg != null && tmpcfg.Name.Equals(Name))
                {
                    if (args.Command == CfgChangeCmd.CfgChange)
                    {
						//errorsCfg.BlackAndWhite = tmpcfg.BlackAndWhite;
						//errorsCfg.LowResolution = tmpcfg.LowResolution;
						//errorsCfg.ImageRotation = tmpcfg.ImageRotation;
					}
                }
            };
        }

        #endregion Configuration Change Handling
	}
}