using System.Xml;
using Aitex.Core.RT.IOCore;

namespace Aitex.Core.RT.Device.Unit
{
    public class IoSignalLight : BaseDevice, IDevice
    {
        private bool _value;
        private DOAccessor _do = null;
        private DIAccessor _diFeedback;

        public bool Value
        {
            get
            {
                if (_diFeedback != null)
                    return _diFeedback.Value;

                if (_do != null)
                    return _do.Value;

                return false;
            }
            set
            {
                _value = value;
                string reason;
                _do.SetValue(value, out reason);
            }
        }

        public IoSignalLight(string module, XmlElement node)
        {
            base.Module = module;
            base.Name = node.GetAttribute("id");
            base.Display = node.GetAttribute("display");
            base.DeviceID = node.GetAttribute("schematicId");

            _do = ParseDoNode("doSet", node);
            _diFeedback = ParseDiNode("diFeedback", node);
        }

        public bool Initialize() { return true; }

        public void Terminate() { }

        public void Monitor() { }

        public void Reset() { }
    }
}