DepotDownloaderMod/SteamKit/Types/MicroTime.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;

namespace SteamKit
{
    [StructLayout( LayoutKind.Sequential, Pack = 1 )]
    public class MicroTime : Serializable<MicroTime>, IEquatable<ulong>, IComparable<ulong>
    {
        public ulong Time;

        public static MicroTime Now
        {
            get
            {
                return new MicroTime( MicroTime.GetMicroSecNow() );
            }
        }


        public MicroTime()
            : this( 0 )
        {
        }
        public MicroTime( ulong time )
        {
            this.Time = time;
        }


        public static implicit operator ulong( MicroTime microTime )
        {
            return microTime.Time;
        }
        public static implicit operator MicroTime( ulong microTime )
        {
            return new MicroTime( microTime );
        }


        public DateTime ToDateTime()
        {
            return ( DateTime.MinValue + TimeSpan.FromTicks( ( long )Time * 10 ) );
        }
        public uint ToUnixTime()
        {
            return MicroTime.GetUnixTime( this.ToDateTime() );
        }


        public override string ToString()
        {
            return ToDateTime().ToString();
        }


        public bool Equals( ulong other )
        {
            return Time.Equals( other );
        }

        public int CompareTo( ulong other )
        {
            return Time.CompareTo( other );
        }


        static ulong GetMicroSecNow()
        {
            return 0xDCBFFEFF2BC000UL + ( ( ulong )GetUnixTime( DateTime.UtcNow ) * 1000000UL );
        }
        static uint GetUnixTime( DateTime dt )
        {
            TimeSpan ts = ( dt - new DateTime( 1970, 1, 1, 0, 0, 0 ) );
            return ( uint )ts.TotalSeconds;
        }
    }
}