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/*
                            This file is part of the Opie Project
             =.             Copyright (C) The Opie Team <opie-devel@handhelds.org>
           .=l.
          .>+-=
_;:,     .>    :=|.         This program is free software; you can
.> <`_,   >  .   <=         redistribute it and/or  modify it under
:`=1 )Y*s>-.--   :          the terms of the GNU Library General Public
.="- .-=="i,     .._        License as published by the Free Software
- .   .-<_>     .<>         Foundation; either version 2 of the License,
    ._= =}       :          or (at your option) any later version.
   .%`+i>       _;_.
   .i_,=:_.      -<s.       This program 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., 59 Temple Place - Suite 330,
                            Boston, MA 02111-1307, USA.
*/

/* OPIE */
#include <opie2/opimdateconversion.h>
#include <opie2/odebug.h>

#include <qpe/timeconversion.h>

namespace Opie
{

QString OPimDateConversion::dateToString( const QDate &d )
{
    if ( d.isNull() || !d.isValid() )
        return QString::null;

    // ISO format in year, month, day (YYYYMMDD); e.g. 20021231
    QString year = QString::number( d.year() );
    QString month = QString::number( d.month() );
    month = month.rightJustify( 2, '0' );
    QString day = QString::number( d.day() );
    day = day.rightJustify( 2, '0' );

    QString str = year + month + day;
    //odebug << "\tPimContact dateToStr = " << str << "" << oendl;

    return str;
}


QDate OPimDateConversion::dateFromString( const QString& s )
{
    QDate date;

    if ( s.isEmpty() )
        return date;

    // Be backward compatible to old Opie format:
    // Try to load old format. If it fails, try new ISO-Format!
    date = TimeConversion::fromString ( s );
    if ( date.isValid() )
        return date;

    // Read ISO-Format (YYYYMMDD)
    int year = s.mid( 0, 4 ).toInt();
    int month = s.mid( 4, 2 ).toInt();
    int day = s.mid( 6, 2 ).toInt();

    // do some quick sanity checking -eilers
    // but we isValid() again? -zecke
    if ( year < 1900 || year > 3000 )
    {
        owarn << "PimContact year is not in range" << oendl;
        return date;
    }
    if ( month < 0 || month > 12 )
    {
        owarn << "PimContact month is not in range" << oendl;
        return date;
    }
    if ( day < 0 || day > 31 )
    {
        owarn << "PimContact day is not in range" << oendl;
        return date;
    }

    date.setYMD( year, month, day );
    if ( !date.isValid() )
    {
        owarn << "PimContact date is not valid" << oendl;
        return date;
    }

    return date;
}


QString OPimDateConversion::dateTimeToString( const QDateTime& dt )
{
    if ( !dt.isValid() || dt.isNull() )
        return QString::null;

    QString year = QString::number( dt.date().year() );
    QString month = QString::number( dt.date().month() );
    QString day = QString::number( dt.date().day() );

    QString hour = QString::number( dt.time().hour() );
    QString min = QString::number( dt.time().minute() );
    QString sec = QString::number( dt.time().second() );

    month = month.rightJustify( 2, '0' );
    day = day. rightJustify( 2, '0' );
    hour = hour. rightJustify( 2, '0' );
    min = min. rightJustify( 2, '0' );
    sec = sec. rightJustify( 2, '0' );

    return day + month + year + hour + min + sec;
}


QDateTime OPimDateConversion::dateTimeFromString( const QString& str )
{

    if ( str.isEmpty() )
        return QDateTime();
    int day = str.mid( 0, 2 ).toInt();
    int month = str.mid( 2, 2 ).toInt();
    int year = str.mid( 4, 4 ).toInt();
    int hour = str.mid( 8, 2 ).toInt();
    int min = str.mid( 10, 2 ).toInt();
    int sec = str.mid( 12, 2 ).toInt();

    QDate date( year, month, day );
    QTime time( hour, min, sec );
    QDateTime dt( date, time );
    return dt;
}

}