using System;
using DTS.Common.Enums.DASFactory;

namespace DTS.DASLib.Service
{
    /// <summary>
    /// Class for channels encoding sample timestamps
    /// </summary>
    [Serializable]
    public class TimestampDASChannel : InputDASChannel
    {
        /// <summary>
        /// CTOR to populate a channel's owning module and channel WRT that module.  Calls 
        /// base class CTOR.
        /// </summary>
        /// <param name="owner">Module that contains this channel.</param>
        /// <param name="channelNumber">ChannelNumber of this channel WRT owning module.</param>
        public TimestampDASChannel(DASModule owner, int channelNumber)
            : base(owner, channelNumber)
        {
        }

        public TimestampDASChannel()
        {
        }

        /// <summary>
        /// If the rtc channel exists, it is "Configured".
        /// </summary>
        public override bool IsConfigured()
        {
            return true;
        }

        public const string MARKER = "MARKER";
        public const string SEC_H = "SECONDS_HIGH";
        public const string SEC_L = "SECONDS_LOW";
        public const string NANOS_H = "NANOSECONDS_HIGH";
        public const string NANOS_L = "NANOSECONDS_LOW";
        public const string RSVD = "RESERVED";


        public override string ToString()
        {
            switch (OwningModule.ModuleType())
            {
                case DFConstantsAndEnums.ModuleType.EmbeddedClockSecondsAndMarker:
                    switch (ModuleChannelNumber)
                    {
                        case 0:
                            return MARKER;
                        case 1:
                            return SEC_H;
                        case 2:
                            return SEC_L;
                    }
                    break;
                case DFConstantsAndEnums.ModuleType.EmbeddedClockNanosAndPad:
                    switch (ModuleChannelNumber)
                    {
                        case 0:
                            return NANOS_H;
                        case 1:
                            return NANOS_L;
                        case 2:
                            return RSVD;
                    }
                    break;
            }
            return ModuleChannelNumber.ToString();
        }
    }
}