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#include "qbuiltintypes_p.h"

#include "qcommonvalues_p.h"

#include "qyearmonthduration_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

YearMonthDuration::YearMonthDuration(const bool isPositiveP,

                                     const YearProperty yearsP,

                                     const MonthProperty monthsP) : AbstractDuration(isPositiveP),

                                                                    m_years(yearsP),

                                                                    m_months(monthsP)

{

    Q_ASSERT(monthsP < 32 && monthsP > -32);

}

YearMonthDuration::Ptr YearMonthDuration::fromLexical(const QString &lexical)

{

    static const CaptureTable captureTable(

        /* The extra paranthesis is a build fix for GCC 3.3. */

        (QRegExp(QLatin1String(

                "^\\s*"         /* Any preceding whitespace. */

                "(-)?"          /* Sign, if any. */

                "P"             /* Delimiter. */

                "(?:(\\d+)Y)?"  /* The years part. */

                "(?:(\\d+)M)?"  /* The months part. */

                "\\s*$"         /* Any terminating whitespace. */))),

        2,                      /* yearP. */

        3                       /* monthP. */);

    YearProperty years = 0;

    MonthProperty months = 0;

    bool isPos;

    const AtomicValue::Ptr err(create(captureTable, lexical, &isPos, &years,

                                      &months, 0, 0, 0, 0, 0));

    return err ? err : YearMonthDuration::Ptr(new YearMonthDuration(isPos, years, months));

}

YearMonthDuration::Ptr YearMonthDuration::fromComponents(const bool isPositive,

                                                         const YearProperty years,

                                                         const MonthProperty months)

{

    return YearMonthDuration::Ptr(new YearMonthDuration(isPositive, years, months));

}

QString YearMonthDuration::stringValue() const

{

    QString retval;

    if(!m_isPositive)

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

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

    /* When years == 0 and months == 0, we get "P0M", which

     * is the correct canonical form. */

    if(m_years)

    {

        retval.append(QString::number(m_years));

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

        if(m_months)

        {

            retval.append(QString::number(m_months));

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

        }

    }

    else

    {

        if(m_months)

        {

            retval.append(QString::number(m_months));

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

        }

        else

            return QLatin1String("P0M"); /* Ensure the canonical form. */

    }

    return retval;

}

AbstractDuration::Value YearMonthDuration::value() const

{

    return (m_years * 12 + m_months) * (m_isPositive ? 1 : -1);

}

Item YearMonthDuration::fromValue(const Value val) const

{

    if(val == 0)

        return toItem(CommonValues::YearMonthDurationZero);

    else

    {

        const Value absValue = qAbs(val);

        return toItem(YearMonthDuration::fromComponents(val >= 0,

                                                        absValue / 12,

                                                        absValue % 12));

    }

}

ItemType::Ptr YearMonthDuration::type() const

{

    return BuiltinTypes::xsYearMonthDuration;

}

YearProperty YearMonthDuration::years() const

{

    return m_years;

}

MonthProperty YearMonthDuration::months() const

{

    return m_months;

}

DayCountProperty YearMonthDuration::days() const

{

    return 0;

}

HourProperty YearMonthDuration::hours() const

{

    return 0;

}

MinuteProperty YearMonthDuration::minutes() const

{

    return 0;

}

SecondProperty YearMonthDuration::seconds() const

{

    return 0;

}

MSecondProperty YearMonthDuration::mseconds() const

{

    return 0;

}

QT_END_NAMESPACE