using FxpConvert.Common;

namespace NIFPGA
{
    public sealed class FPGAFXPReadProperty : FPGABaseProperty
    {
        Interop.NiFpgaDll_ReadU64 Read;
        private NiFpga_FxpTypeInfo _TypeInfo;
        private object _Lock = new object();
        private IFxpConvert _Convert;
        internal FPGAFXPReadProperty(FPGASession session, uint indicator, NiFpga_FxpTypeInfo typeInfo, IFxpConvert convert) : base(session, indicator, true)
        {
            _TypeInfo = typeInfo;
            _Convert = convert;
            Read = _Session.GetDelegate<Interop.NiFpgaDll_ReadU64>();
        }
        private double GetValue()
        {
            lock (_Lock)
            {
                ulong value = 0;
                double temp = 0;
                _Session.CheckResult(Read(_Session.Session, Indicator, ref value));
                _Convert.FxpConvertToDouble(ref value, _TypeInfo, ref temp, 1);
                return temp;
            }
        }
        public double Value => GetValue();
    }
}