//
// Softec
//
// Contact: Support@softec.st
//
// Designed by Denis Gervalle and Olivier Desaive
// Written by Denis Gervalle
//
// Copyright 2004 by SOFTEC. All rights reserved.
//
using System;
using System.Text;
using System.Runtime.InteropServices;
using System.Diagnostics;
namespace Softec.AprSharp
{
    public unsafe struct AprTimeExp
    {
        private apr_time_exp_t *mTimeExp;
        [StructLayout( LayoutKind.Sequential )]
        private struct apr_time_exp_t
        {
            public int tm_usec;
            public int tm_sec;
            public int tm_min;
            public int tm_hour;
            public int tm_mday;
            public int tm_mon;
            public int tm_year;
            public int tm_wday;
            public int tm_yday;
            public int tm_isdst;
            public int tm_gmtoff;
        }
        #region Generic embedding functions of an IntPtr
        private AprTimeExp(apr_time_exp_t *ptr)
        {
            mTimeExp = ptr;
        }
        public AprTimeExp(out GCHandle handle)
        {
            handle = GCHandle.Alloc(new apr_time_exp_t(),GCHandleType.Pinned);
            mTimeExp = handle.AddrOfPinnedObject().ToPointer();
        }
        public AprTimeExp(IntPtr ptr)
        {
            mTimeExp = ptr.ToPointer();
        }
        public bool IsNull()
        {
            return( mTimeExp == null );
        }
        private void CheckPtr()
        {
            if( mTimeExp == null )
                throw new AprNullReferenceException(); 
        }
        public void ClearPtr()
        {
            mTimeExp = null;
        }
        public static implicit operator IntPtr(AprTimeExp timeExp)
        {
            return new IntPtr(timeExp.mTimeExp);
        }
        public static implicit operator AprTimeExp(IntPtr ptr)
        {
            return new AprTimeExp(ptr);
        }
        public override string ToString()
        {
            return("[apr_time_exp_t:"+(new IntPtr(mTimeExp)).ToInt32().ToString("X")+"]");
        }
        #endregion
        #region Methods wrappers
        public static AprTimeExp PoolAlloc(AprPool pool)
        {
            return(new AprTimeExp((apr_time_exp_t *)pool.Alloc(sizeof(apr_time_exp_t))));
        }
        public static AprTimeExp ManagedAlloc(out GCHandle handle)
        {
            return(new AprTimeExp(out handle));
        }
        public void SetTimeTZ(long value, int tz)
        {
            Debug.Write(String.Format("apr_time_exp_tz({0:X},{1},{2})...",(new IntPtr(mTimeExp)).ToInt32(),value,tz));
            int res = Apr.apr_time_exp_tz(new IntPtr(mTimeExp), value, tz);
            if(res != 0)
                throw new AprException(res);
            Debug.WriteLine("Done");
        }
        public string ToString(string format)
        {
            StringBuilder str = new StringBuilder(256);
            uint len;
            Debug.Write(String.Format("apr_strftime({0:X},{1})...",(new IntPtr(mTimeExp)).ToInt32(),format));
            int res = Apr.apr_strftime(str, out len, (uint)str.Capacity, format, new IntPtr(mTimeExp));
            if(res != 0)
                throw new AprException(res);
            Debug.WriteLine("Done");
            return(str.ToString());
        }
        public long Time
        {
            get
            {
                long time;
                Debug.Write(String.Format("apr_time_exp_get({0:X})...",(new IntPtr(mTimeExp)).ToInt32()));
                int res = Apr.apr_time_exp_get(out time, new IntPtr(mTimeExp));
                if(res != 0)
                    throw new AprException(res);
                Debug.WriteLine(String.Format("Done({0})",time));
                return(time);
            }
            set
            {
                CheckPtr();
                Debug.Write(String.Format("apr_time_exp_gmt({0:X},{1})...",(new IntPtr(mTimeExp)).ToInt32(),value));
                int res = Apr.apr_time_exp_gmt(new IntPtr(mTimeExp), value);
                if(res != 0)
                    throw new AprException(res);
                Debug.WriteLine("Done");
            }
        }
        public long GmtTime
        {
            get
            {
                CheckPtr();
                long time;
                Debug.Write(String.Format("apr_time_exp_gmt_get({0:X})...",(new IntPtr(mTimeExp)).ToInt32()));
                int res = Apr.apr_time_exp_gmt_get(out time, new IntPtr(mTimeExp));
                if(res != 0)
                    throw new AprException(res);
                Debug.WriteLine(String.Format("Done({0})",time));
                return(time);
            }
            set
            {
                CheckPtr();
                Debug.Write(String.Format("apr_time_exp_lt({0:X},{1})...",(new IntPtr(mTimeExp)).ToInt32(),value));
                int res = Apr.apr_time_exp_lt(new IntPtr(mTimeExp), value);
                if(res != 0)
                    throw new AprException(res);
                Debug.WriteLine("Done");
            }
        }
        #endregion
        #region Structure members wrapper (Properties)
        public int MicroSeconds
        {
            get
            {
                CheckPtr();
                return(mTimeExp->tm_usec);
            }
            set
            {
                CheckPtr();
                if( value<0 || value>999999 )
                    throw new AprArgumentOutOfRangeException("MicroSeconds", value, 0, 999999);
                mTimeExp->tm_usec=value;
            }
        }
        public int Seconds
        {
            get
            {
                CheckPtr();
                return(mTimeExp->tm_sec);
            }
            set
            {
                CheckPtr();
                if( value<0 || value>59 )
                    throw new AprArgumentOutOfRangeException("Seconds", value, 0, 59);
                mTimeExp->tm_sec=value;
            }
        }
        public int Minutes
        {
            get
            {
                CheckPtr();
                return(mTimeExp->tm_min);
            }
            set
            {
                CheckPtr();
                if( value<0 || value>59 )
                    throw new AprArgumentOutOfRangeException("Minutes", value, 0, 59);
                mTimeExp->tm_min=value;
            }
        }
        public int Hours
        {
            get
            {
                CheckPtr();
                return(mTimeExp->tm_hour);
            }
            set
            {
                CheckPtr();
                if( value<0 || value>23 )
                    throw new AprArgumentOutOfRangeException("Hours",value, 0, 23);
                mTimeExp->tm_hour=value;
            }
        }
        public int Day
        {
            get
            {
                CheckPtr();
                return(mTimeExp->tm_mday);
            }
            set
            {
                CheckPtr();
                if( value<1 || value>31 )
                    throw new AprArgumentOutOfRangeException("Day",value, 1, 31);
                mTimeExp->tm_mday=value-1;
            }
        }
        public int Month
        {
            get
            {
                CheckPtr();
                return(mTimeExp->tm_mon+1);
            }
            set
            {
                CheckPtr();
                if( value<1 || value>12 )
                    throw new AprArgumentOutOfRangeException("Month",value, 1, 12);
                mTimeExp->tm_mon=value-1;
            }
        }
        public int Year
        {
            get
            {
                CheckPtr();
                return(mTimeExp->tm_year+1900);
            }
            set
            {
                CheckPtr();
                if( value<1900 )
                    throw new AprArgumentOutOfRangeException("Year",value, "Expect an integer value over 1900.");
                mTimeExp->tm_year=value-1900;
            }
        }
        public int WeekDay
        {
            get
            {
                CheckPtr();
                return(mTimeExp->tm_wday);
            }
        }
        public int YearDay
        {
            get
            {
                CheckPtr();
                return(mTimeExp->tm_yday);
            }
        }
        public bool IsDaylightSaving
        {
            get
            {
                CheckPtr();
                return(mTimeExp->tm_isdst != 0);
            }
            set
            {
                CheckPtr();
                mTimeExp->tm_isdst=(value) ? 1 : 0;
            }
        }
        public int TimeZone
        {
            get
            {
                CheckPtr();
                return(mTimeExp->tm_gmtoff);
            }
            set
            {
                CheckPtr();
                if( value<-43200 || value>43200 )
                    throw new AprArgumentOutOfRangeException("GmtOffset",value, -43200, +43200);
                mTimeExp->tm_gmtoff=value;
            }
        }
        #endregion
    }
}