/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
 
#include <dputil.hxx>
#include <dpitemdata.hxx>
#include <dpnumgroupinfo.hxx>
#include <globstr.hrc>
#include <scresid.hxx>
#include <generalfunction.hxx>
 
#include <comphelper/string.hxx>
#include <unotools/localedatawrapper.hxx>
#include <unotools/calendarwrapper.hxx>
#include <svl/numformat.hxx>
#include <svl/zforlist.hxx>
#include <rtl/math.hxx>
#include <o3tl/string_view.hxx>
#include <osl/diagnose.h>
 
#include <com/sun/star/sheet/DataPilotFieldGroupBy.hpp>
#include <com/sun/star/i18n/CalendarDisplayIndex.hpp>
 
using namespace com::sun::star;
 
namespace {
 
const sal_uInt16 SC_DP_LEAPYEAR = 1648;     // arbitrary leap year for date calculations
 
OUString getTwoDigitString(sal_Int32 nValue)
{
    OUString aRet = OUString::number( nValue );
    if ( aRet.getLength() < 2 )
        aRet = "0" + aRet;
    return aRet;
}
 
void appendDateStr(OUStringBuffer& rBuffer, double fValue, SvNumberFormatter* pFormatter)
{
    sal_uInt32 nFormat = pFormatter->GetStandardFormat( SvNumFormatType::DATE, ScGlobal::eLnge );
    rBuffer.append(pFormatter->GetInputLineString(fValue, nFormat));
}
 
OUString getSpecialDateName(double fValue, bool bFirst, SvNumberFormatter* pFormatter)
{
    OUStringBuffer aBuffer;
    aBuffer.append( bFirst ? '<' : '>' );
    appendDateStr(aBuffer, fValue, pFormatter);
    return aBuffer.makeStringAndClear();
}
 
}
 
bool ScDPUtil::isDuplicateDimension(std::u16string_view rName)
{
    return o3tl::ends_with(rName, u"*");
}
 
OUString ScDPUtil::getSourceDimensionName(std::u16string_view rName)
{
    return OUString(comphelper::string::stripEnd(rName, '*'));
}
 
sal_uInt8 ScDPUtil::getDuplicateIndex(const OUString& rName)
{
    // Count all trailing '*'s.
 
    sal_Int32 n = rName.getLength();
    if (!n)
        return 0;
 
    sal_uInt8 nDupCount = 0;
    const sal_Unicode* p = rName.getStr();
    const sal_Unicode* pStart = p;
    p += n-1; // Set it to the last char.
    for (; p != pStart; --p, ++nDupCount)
    {
        if (*p != '*')
            break;
    }
 
    return nDupCount;
}
 
OUString ScDPUtil::createDuplicateDimensionName(const OUString& rOriginal, size_t nDupCount)
{
    if (!nDupCount)
        return rOriginal;
 
    OUStringBuffer aBuf(rOriginal);
    for (size_t i = 0; i < nDupCount; ++i)
        aBuf.append('*');
 
    return aBuf.makeStringAndClear();
}
 
OUString ScDPUtil::getDateGroupName(
        sal_Int32 nDatePart, sal_Int32 nValue, SvNumberFormatter* pFormatter,
        double fStart, double fEnd)
{
    if (nValue == ScDPItemData::DateFirst)
        return getSpecialDateName(fStart, true, pFormatter);
    if (nValue == ScDPItemData::DateLast)
        return getSpecialDateName(fEnd, false, pFormatter);
 
    switch ( nDatePart )
    {
        case sheet::DataPilotFieldGroupBy::YEARS:
            return OUString::number(nValue);
        case sheet::DataPilotFieldGroupBy::QUARTERS:
            return ScGlobal::getLocaleData().getQuarterAbbreviation(sal_Int16(nValue-1));    // nValue is 1-based
        case css::sheet::DataPilotFieldGroupBy::MONTHS:
            return ScGlobal::GetCalendar().getDisplayName(
                        i18n::CalendarDisplayIndex::MONTH, sal_Int16(nValue-1), 0);    // 0-based, get short name
        case sheet::DataPilotFieldGroupBy::DAYS:
        {
            Date aDate(1, 1, SC_DP_LEAPYEAR);
            aDate.AddDays(nValue - 1);            // nValue is 1-based
            tools::Long nDays = aDate - pFormatter->GetNullDate();
 
            const sal_uInt32 nFormat = pFormatter->GetFormatIndex(NF_DATE_SYS_DDMMM, ScGlobal::eLnge);
            const Color* pColor;
            OUString aStr;
            pFormatter->GetOutputString(nDays, nFormat, aStr, &pColor);
            return aStr;
        }
        case sheet::DataPilotFieldGroupBy::HOURS:
        {
            //TODO: allow am/pm format?
            return getTwoDigitString(nValue);
        }
        break;
        case sheet::DataPilotFieldGroupBy::MINUTES:
        case sheet::DataPilotFieldGroupBy::SECONDS:
        {
            return ScGlobal::getLocaleData().getTimeSep() + getTwoDigitString(nValue);
        }
        break;
        default:
            OSL_FAIL("invalid date part");
    }
 
    return u"FIXME: unhandled value"_ustr;
}
 
double ScDPUtil::getNumGroupStartValue(double fValue, const ScDPNumGroupInfo& rInfo)
{
    if (fValue < rInfo.mfStart && !rtl::math::approxEqual(fValue, rInfo.mfStart))
        return -std::numeric_limits<double>::infinity();
 
    if (fValue > rInfo.mfEnd && !rtl::math::approxEqual(fValue, rInfo.mfEnd))
        return std::numeric_limits<double>::infinity();
 
    double fDiff = fValue - rInfo.mfStart;
    double fDiv = rtl::math::approxFloor( fDiff / rInfo.mfStep );
    double fGroupStart = rInfo.mfStart + fDiv * rInfo.mfStep;
 
    if (rtl::math::approxEqual(fGroupStart, rInfo.mfEnd) &&
        !rtl::math::approxEqual(fGroupStart, rInfo.mfStart))
    {
        if (!rInfo.mbDateValues)
        {
            // A group that would consist only of the end value is not
            // created, instead the value is included in the last group
            // before. So the previous group is used if the calculated group
            // start value is the selected end value.
 
            fDiv -= 1.0;
            return rInfo.mfStart + fDiv * rInfo.mfStep;
        }
 
        // For date values, the end value is instead treated as above the
        // limit if it would be a group of its own.
 
        return rInfo.mfEnd + rInfo.mfStep;
    }
 
    return fGroupStart;
}
 
namespace {
 
void lcl_AppendDateStr( OUStringBuffer& rBuffer, double fValue, SvNumberFormatter* pFormatter )
{
    sal_uInt32 nFormat = pFormatter->GetStandardFormat( SvNumFormatType::DATE, ScGlobal::eLnge );
    rBuffer.append( pFormatter->GetInputLineString( fValue, nFormat ) );
}
 
OUString lcl_GetSpecialNumGroupName( double fValue, bool bFirst, sal_Unicode cDecSeparator,
    bool bDateValues, SvNumberFormatter* pFormatter )
{
    OSL_ENSURE( cDecSeparator != 0, "cDecSeparator not initialized" );
 
    OUStringBuffer aBuffer;
    aBuffer.append( bFirst ? '<' : '>' );
    if ( bDateValues )
        lcl_AppendDateStr( aBuffer, fValue, pFormatter );
    else
        rtl::math::doubleToUStringBuffer( aBuffer, fValue, rtl_math_StringFormat_Automatic,
        rtl_math_DecimalPlaces_Max, cDecSeparator, true );
    return aBuffer.makeStringAndClear();
}
 
OUString lcl_GetNumGroupName(
    double fStartValue, const ScDPNumGroupInfo& rInfo, sal_Unicode cDecSep,
    SvNumberFormatter* pFormatter)
{
    OSL_ENSURE( cDecSep != 0, "cDecSeparator not initialized" );
 
    double fStep = rInfo.mfStep;
    double fEndValue = fStartValue + fStep;
    if (rInfo.mbIntegerOnly && (rInfo.mbDateValues || !rtl::math::approxEqual(fEndValue, rInfo.mfEnd)))
    {
        //  The second number of the group label is
        //  (first number + size - 1) if there are only integer numbers,
        //  (first number + size) if any non-integer numbers are involved.
        //  Exception: The last group (containing the end value) is always
        //  shown as including the end value (but not for dates).
 
        fEndValue -= 1.0;
    }
 
    if ( fEndValue > rInfo.mfEnd && !rInfo.mbAutoEnd )
    {
        // limit the last group to the end value
 
        fEndValue = rInfo.mfEnd;
    }
 
    OUStringBuffer aBuffer;
    if ( rInfo.mbDateValues )
    {
        lcl_AppendDateStr( aBuffer, fStartValue, pFormatter );
        aBuffer.append( " - " );   // with spaces
        lcl_AppendDateStr( aBuffer, fEndValue, pFormatter );
    }
    else
    {
        rtl::math::doubleToUStringBuffer( aBuffer, fStartValue, rtl_math_StringFormat_Automatic,
            rtl_math_DecimalPlaces_Max, cDecSep, true );
        aBuffer.append( '-' );
        rtl::math::doubleToUStringBuffer( aBuffer, fEndValue, rtl_math_StringFormat_Automatic,
            rtl_math_DecimalPlaces_Max, cDecSep, true );
    }
 
    return aBuffer.makeStringAndClear();
}
 
}
 
OUString ScDPUtil::getNumGroupName(
    double fValue, const ScDPNumGroupInfo& rInfo, sal_Unicode cDecSep, SvNumberFormatter* pFormatter)
{
    if ( fValue < rInfo.mfStart && !rtl::math::approxEqual( fValue, rInfo.mfStart ) )
        return lcl_GetSpecialNumGroupName( rInfo.mfStart, true, cDecSep, rInfo.mbDateValues, pFormatter );
 
    if ( fValue > rInfo.mfEnd && !rtl::math::approxEqual( fValue, rInfo.mfEnd ) )
        return lcl_GetSpecialNumGroupName( rInfo.mfEnd, false, cDecSep, rInfo.mbDateValues, pFormatter );
 
    double fDiff = fValue - rInfo.mfStart;
    double fDiv = rtl::math::approxFloor( fDiff / rInfo.mfStep );
    double fGroupStart = rInfo.mfStart + fDiv * rInfo.mfStep;
 
    if ( rtl::math::approxEqual( fGroupStart, rInfo.mfEnd ) &&
        !rtl::math::approxEqual( fGroupStart, rInfo.mfStart ) )
    {
        if (rInfo.mbDateValues)
        {
            //  For date values, the end value is instead treated as above the limit
            //  if it would be a group of its own.
            return lcl_GetSpecialNumGroupName( rInfo.mfEnd, false, cDecSep, rInfo.mbDateValues, pFormatter );
        }
    }
 
    return lcl_GetNumGroupName(fGroupStart, rInfo, cDecSep, pFormatter);
}
 
sal_Int32 ScDPUtil::getDatePartValue(
    double fValue, const ScDPNumGroupInfo* pInfo, sal_Int32 nDatePart,
    const SvNumberFormatter* pFormatter)
{
    // Start and end are inclusive
    // (End date without a time value is included, with a time value it's not)
 
    if (pInfo)
    {
        if (fValue < pInfo->mfStart && !rtl::math::approxEqual(fValue, pInfo->mfStart))
            return ScDPItemData::DateFirst;
        if (fValue > pInfo->mfEnd && !rtl::math::approxEqual(fValue, pInfo->mfEnd))
            return ScDPItemData::DateLast;
    }
 
    sal_Int32 nResult = 0;
 
    if (nDatePart == sheet::DataPilotFieldGroupBy::HOURS ||
        nDatePart == sheet::DataPilotFieldGroupBy::MINUTES ||
        nDatePart == sheet::DataPilotFieldGroupBy::SECONDS)
    {
        // handle time
        // (do as in the cell functions, ScInterpreter::ScGetHour() etc.)
 
        sal_uInt16 nHour, nMinute, nSecond;
        double fFractionOfSecond;
        tools::Time::GetClock( fValue, nHour, nMinute, nSecond, fFractionOfSecond, 0);
 
        switch (nDatePart)
        {
            case sheet::DataPilotFieldGroupBy::HOURS:
                nResult = nHour;
                break;
            case sheet::DataPilotFieldGroupBy::MINUTES:
                nResult = nMinute;
                break;
            case sheet::DataPilotFieldGroupBy::SECONDS:
                nResult = nSecond;
                break;
        }
    }
    else
    {
        Date aDate = pFormatter->GetNullDate();
        aDate.AddDays(::rtl::math::approxFloor(fValue));
 
        switch ( nDatePart )
        {
            case css::sheet::DataPilotFieldGroupBy::YEARS:
                nResult = aDate.GetYear();
                break;
            case css::sheet::DataPilotFieldGroupBy::QUARTERS:
                nResult = 1 + (aDate.GetMonth() - 1) / 3;     // 1..4
                break;
            case css::sheet::DataPilotFieldGroupBy::MONTHS:
                nResult = aDate.GetMonth();     // 1..12
                break;
            case css::sheet::DataPilotFieldGroupBy::DAYS:
                {
                    Date aYearStart(1, 1, aDate.GetYear());
                    nResult = (aDate - aYearStart) + 1;       // Jan 01 has value 1
                    if (nResult >= 60 && !aDate.IsLeapYear())
                    {
                        // days are counted from 1 to 366 - if not from a leap year, adjust
                        ++nResult;
                    }
                }
                break;
            default:
                OSL_FAIL("invalid date part");
        }
    }
 
    return nResult;
}
 
namespace {
 
const TranslateId aFuncStrIds[] = {
    {},                             // SUBTOTAL_FUNC_NONE
    STR_FUN_TEXT_AVG,               // SUBTOTAL_FUNC_AVE
    STR_FUN_TEXT_COUNT,             // SUBTOTAL_FUNC_CNT
    STR_FUN_TEXT_COUNT,             // SUBTOTAL_FUNC_CNT2
    STR_FUN_TEXT_MAX,               // SUBTOTAL_FUNC_MAX
    STR_FUN_TEXT_MIN,               // SUBTOTAL_FUNC_MIN
    STR_FUN_TEXT_PRODUCT,           // SUBTOTAL_FUNC_PROD
    STR_FUN_TEXT_STDDEV,            // SUBTOTAL_FUNC_STD
    STR_FUN_TEXT_STDDEV,            // SUBTOTAL_FUNC_STDP
    STR_FUN_TEXT_SUM,               // SUBTOTAL_FUNC_SUM
    STR_FUN_TEXT_VAR,               // SUBTOTAL_FUNC_VAR
    STR_FUN_TEXT_VAR,               // SUBTOTAL_FUNC_VARP
    STR_FUN_TEXT_MEDIAN,            // SUBTOTAL_FUNC_MED
    {}                              // SUBTOTAL_FUNC_SELECTION_COUNT - not used for pivot table
};
 
}
 
OUString ScDPUtil::getDisplayedMeasureName(const OUString& rName, ScSubTotalFunc eFunc)
{
    assert(unsigned(eFunc) < SAL_N_ELEMENTS(aFuncStrIds));
    TranslateId pId = aFuncStrIds[eFunc];
    if (!pId)
        return rName;
    return ScResId(pId) +        // function name
            " - " +
            rName;                   // field name
}
 
ScSubTotalFunc ScDPUtil::toSubTotalFunc(ScGeneralFunction eGenFunc)
{
    ScSubTotalFunc eSubTotal = SUBTOTAL_FUNC_NONE;
    switch (eGenFunc)
    {
        case ScGeneralFunction::NONE:       eSubTotal = SUBTOTAL_FUNC_NONE; break;
        case ScGeneralFunction::SUM:        eSubTotal = SUBTOTAL_FUNC_SUM;  break;
        case ScGeneralFunction::COUNT:      eSubTotal = SUBTOTAL_FUNC_CNT2; break;
        case ScGeneralFunction::AVERAGE:    eSubTotal = SUBTOTAL_FUNC_AVE;  break;
        case ScGeneralFunction::MEDIAN:     eSubTotal = SUBTOTAL_FUNC_MED;  break;
        case ScGeneralFunction::MAX:        eSubTotal = SUBTOTAL_FUNC_MAX;  break;
        case ScGeneralFunction::MIN:        eSubTotal = SUBTOTAL_FUNC_MIN;  break;
        case ScGeneralFunction::PRODUCT:    eSubTotal = SUBTOTAL_FUNC_PROD; break;
        case ScGeneralFunction::COUNTNUMS:  eSubTotal = SUBTOTAL_FUNC_CNT;  break;
        case ScGeneralFunction::STDEV:      eSubTotal = SUBTOTAL_FUNC_STD;  break;
        case ScGeneralFunction::STDEVP:     eSubTotal = SUBTOTAL_FUNC_STDP; break;
        case ScGeneralFunction::VAR:        eSubTotal = SUBTOTAL_FUNC_VAR;  break;
        case ScGeneralFunction::VARP:       eSubTotal = SUBTOTAL_FUNC_VARP; break;
        case ScGeneralFunction::AUTO:       eSubTotal = SUBTOTAL_FUNC_NONE; break;
        default:
            assert(false);
    }
    return eSubTotal;
}
 
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

V530 The return value of function 'append' is required to be utilized.

V530 The return value of function 'append' is required to be utilized.

V530 The return value of function 'append' is required to be utilized.

V530 The return value of function 'append' is required to be utilized.