/*
    This file is part of libkabc.
    Copyright (c) 2001 Cornelius Schumacher <schumacher@kde.org>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/

#include "timezone.h"

#include <QtCore/QDataStream>
#include <QtCore/QSharedData>

using namespace KABC;

class TimeZone::Private : public QSharedData
{
  public:
    Private( int offset = 0, bool valid = false )
      : mOffset( offset ), mValid( valid )
    {
    }

    Private( const Private &other )
      : QSharedData( other )
    {
      mOffset = other.mOffset;
      mValid = other.mValid;
    }

    int mOffset;
    bool mValid;
};

TimeZone::TimeZone()
  : d( new Private )
{
}

TimeZone::TimeZone( int offset )
  : d( new Private( offset, true ) )
{
}

TimeZone::TimeZone( const TimeZone &other )
  : d( other.d )
{
}

TimeZone::~TimeZone()
{
}

void TimeZone::setOffset( int offset )
{
  d->mOffset = offset;
  d->mValid = true;
}

int TimeZone::offset() const
{
  return d->mOffset;
}

bool TimeZone::isValid() const
{
  return d->mValid;
}

bool TimeZone::operator==( const TimeZone &t ) const
{
  if ( !t.isValid() && !isValid() ) {
    return true;
  }

  if ( !t.isValid() || !isValid() ) {
    return false;
  }

  if ( t.d->mOffset == d->mOffset ) {
    return true;
  }

  return false;
}

bool TimeZone::operator!=( const TimeZone &t ) const
{
  return !( *this == t );
}

TimeZone &TimeZone::operator=( const TimeZone &other )
{
  if ( this != &other ) {
    d = other.d;
  }

  return *this;
}

QString TimeZone::toString() const
{
  QString str;

  str += QString::fromLatin1( "TimeZone {\n" );
  str += QString::fromLatin1( "  Offset: %1\n" ).arg( d->mOffset );
  str += QString::fromLatin1( "}\n" );

  return str;
}

QDataStream &KABC::operator<<( QDataStream &s, const TimeZone &zone )
{
  return s << zone.d->mOffset << zone.d->mValid;
}

QDataStream &KABC::operator>>( QDataStream &s, TimeZone &zone )
{
  s >> zone.d->mOffset >> zone.d->mValid;

  return s;
}