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** This file is part of the QtXmlPatterns module of the Qt Toolkit.

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****************************************************************************/

#include <QStringList>

#include "qbuiltintypes_p.h"

#include "qpatternistlocale_p.h"

#include "qvalidationerror_p.h"

#include "qabstractduration_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

AbstractDuration::AbstractDuration(const bool isPos) : m_isPositive(isPos)

{

}

#define error(msg) return ValidationError::createError(msg);

#define getCapt(sym)        ((captTable.sym == -1) ? QString() : capts.at(captTable.sym))

AtomicValue::Ptr AbstractDuration::create(const CaptureTable &captTable,

                                          const QString &lexical,

                                          bool *isPositive,

                                          YearProperty *years,

                                          MonthProperty *months,

                                          DayCountProperty *days,

                                          HourProperty *hours,

                                          MinuteProperty *minutes,

                                          SecondProperty *seconds,

                                          MSecondProperty *mseconds)

{

    /* We don't directly write into the arguments(eg @p years) but uses these

     * because the arguments are intended for normalized values, and therefore

     * can cause overflows. */

    MonthCountProperty monthCount = 0;

    MinuteCountProperty minCount = 0;

    HourCountProperty hourCount = 0;

    SecondCountProperty secCount = 0;

    Q_ASSERT(isPositive);

    QRegExp myExp(captTable.regExp); /* Copy, in order to stay thread safe. */

    if(!myExp.exactMatch(lexical))

    {

        error(QString());

    }

    const QStringList capts(myExp.capturedTexts());

    if(days)

    {

        if(getCapt(tDelimiter).isEmpty())

        {

            if((years && getCapt(year).isEmpty() && getCapt(month).isEmpty() && getCapt(day).isEmpty())

                ||

               (!years && getCapt(day).isEmpty()))

            {

                error(QtXmlPatterns::tr("At least one component must be present."));

            }

        }

        else if(getCapt(hour).isEmpty() &&

                getCapt(minutes).isEmpty() &&

                getCapt(seconds).isEmpty() &&

                getCapt(mseconds).isEmpty())

        {

            error(QtXmlPatterns::tr("At least one time component must appear "

                                    "after the %1-delimiter.")

                                    .arg(formatKeyword("T")));

        }

    }

    else if(getCapt(year).isEmpty() && getCapt(month).isEmpty()) /* This checks xs:yearMonthDuration. */

    {

        error(QtXmlPatterns::tr("At least one component must be present."));

    }

    /* If we got no '-', we are positive. */

    *isPositive = capts.at(1).isEmpty();

    if(days)

    {

        Q_ASSERT(hours);

        Q_ASSERT(minutes);

        Q_ASSERT(seconds);

        Q_ASSERT(mseconds);

        *days = getCapt(day).toInt();

        hourCount = getCapt(hour).toInt();

        minCount = getCapt(minutes).toInt();

        secCount = getCapt(seconds).toInt();

        const QString msecondsStr(getCapt(mseconds));

        if(!msecondsStr.isEmpty())

            *mseconds = msecondsStr.leftJustified(3, QLatin1Char('0')).toInt();

        else

            *mseconds = msecondsStr.toInt();

        if(secCount > 59)

        {

            minCount += secCount / 60;

            *seconds = secCount % 60;

        }

        else

            *seconds = secCount;

        if(minCount > 59)

        {

            hourCount += minCount / 60;

            *minutes = minCount % 60;

        }

        else

            *minutes = minCount;

        if(hourCount > 23)

        {

            *days += hourCount / 24;

            *hours = hourCount % 24;

        }

        else

            *hours = hourCount;

    }

    if(!years)

        return AtomicValue::Ptr();

    /* We're supposed to handle years/months. */

    Q_ASSERT(months);

    *years = getCapt(year).toInt();

    monthCount = getCapt(month).toInt();

    if(monthCount > 11)

    {

        *years += monthCount / 12;

        *months = monthCount % 12;

    }

    else

        *months = monthCount;

    return AtomicValue::Ptr();

}

#undef error

#undef getCapt

bool AbstractDuration::operator==(const AbstractDuration &other) const

{

    if(years() == other.years()

       && months() == other.months()

       && days() == other.days()

       && hours() == other.hours()

       && minutes() == other.minutes()

       && seconds() == other.seconds()

       && mseconds() == other.mseconds())

    {

        if(isPositive() == other.isPositive())

            return true;

        else if(years() == 0

                && months() == 0

                && days() == 0

                && hours() == 0

                && minutes() == 0

                && seconds () == 0

                && mseconds() == 0)

        {

            return true; /* Signedness doesn't matter if all are zero. */

        }

    }

    return false;

}

QString AbstractDuration::serializeMSeconds(const MSecondProperty mseconds)

{

    QString retval;

    retval.append(QLatin1Char('.'));

    int div = 100;

    MSecondProperty msecs = mseconds;

    while(msecs > 0)

    {

        int d = msecs / div;

        retval.append(QLatin1Char(d + '0'));

        msecs = msecs % div;

        div = div / 10;

    }

    return retval;

}

bool AbstractDuration::isPositive() const

{

    return m_isPositive;

}

QT_END_NAMESPACE