using System;

// ReSharper disable once CheckNamespace
namespace DTS.DASLib.Service
{
    /// <inheritdoc />
    /// <summary>
    /// allows a input range in mV to send to firmware based on a gain
    /// this is a right now just the middle between the given gain and the next gain, however
    /// we can control this a bit more in the future if we wish.
    /// we don't send directly the input range based on the gain because calibration factors could affect
    /// what range is actually achieved at each gain step
    /// but we want to make sure we don't change gain steps [so we can avoid certain gains]
    /// http://fogbugz/fogbugz/default.asp?10080
    /// </summary>
    public class FirmwareInputRangeAttribute : Attribute
    {
        /// <summary>
        /// input range to send to firmware for the given gain
        /// http://fogbugz/fogbugz/default.asp?10080
        /// </summary>
        /// <param name="o"></param>
        /// <returns></returns>
        public static double GetFirmwareInputRangemV(object o)
        {
            if (o == null) return 0D;
            var mi = o.GetType().GetMember(o.ToString());
            if (mi.Length <= 0) return 0D;
            var attr = GetCustomAttribute(mi[0], typeof(FirmwareInputRangeAttribute)) as FirmwareInputRangeAttribute;
            return attr?._firmwareInputRangeAttribute ?? 0D;
        }

        private readonly double _firmwareInputRangeAttribute;
        public FirmwareInputRangeAttribute(double firmwareInputRangemV)
        {
            _firmwareInputRangeAttribute = firmwareInputRangemV;
        }
    }
}