/////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) 2015-     Statoil ASA
//  Copyright (C) 2015-     Ceetron Solutions AS
// 
//  ResInsight is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
// 
//  ResInsight 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 General Public License at <http://www.gnu.org/licenses/gpl.html> 
//  for more details.
//
/////////////////////////////////////////////////////////////////////////////////


#include "RigEclipseNativeVisibleCellsStatCalc.h"

#include "RigActiveCellInfo.h"
#include "RigCaseCellResultsData.h"
#include "RigStatisticsMath.h"
#include "RigWeightedMeanCalc.h"

#include <math.h>

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
RigEclipseNativeVisibleCellsStatCalc::RigEclipseNativeVisibleCellsStatCalc(RigCaseCellResultsData* cellResultsData, 
                                                                           size_t scalarResultIndex,
                                                                           const cvf::UByteArray* cellVisibilities)
:   m_caseData(cellResultsData),
    m_scalarResultIndex(scalarResultIndex), 
    m_cellVisibilities(cellVisibilities)
{

}

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
void RigEclipseNativeVisibleCellsStatCalc::minMaxCellScalarValues(size_t timeStepIndex, double& min, double& max)
{
    MinMaxAccumulator acc(min, max);
    traverseCells(acc, timeStepIndex);
    min = acc.min;
    max = acc.max;
}

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
void RigEclipseNativeVisibleCellsStatCalc::posNegClosestToZero(size_t timeStepIndex, double& pos, double& neg)
{
    PosNegAccumulator acc(pos, neg);
    traverseCells(acc, timeStepIndex);
    pos = acc.pos;
    neg = acc.neg;

}

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
void RigEclipseNativeVisibleCellsStatCalc::valueSumAndSampleCount(size_t timeStepIndex, double& valueSum, size_t& sampleCount)
{
    SumCountAccumulator acc(valueSum, sampleCount);
    traverseCells(acc, timeStepIndex);
    valueSum = acc.valueSum;
    sampleCount = acc.sampleCount;
}

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
void RigEclipseNativeVisibleCellsStatCalc::addDataToHistogramCalculator(size_t timeStepIndex, RigHistogramCalculator& histogramCalculator)
{
    traverseCells(histogramCalculator, timeStepIndex);
}

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
void RigEclipseNativeVisibleCellsStatCalc::uniqueValues(size_t timeStepIndex, std::set<int>& values)
{
    UniqueValueAccumulator acc;
    traverseCells(acc, timeStepIndex);
    values = acc.uniqueValues;
}

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
size_t RigEclipseNativeVisibleCellsStatCalc::timeStepCount()
{
    return m_caseData->timeStepCount(m_scalarResultIndex);
}

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
void RigEclipseNativeVisibleCellsStatCalc::mobileVolumeWeightedMean(size_t timeStepIndex, double &result)
{
    size_t mobPVResultIndex = m_caseData->findOrLoadScalarResult(RiaDefines::ResultCatType::STATIC_NATIVE, RiaDefines::mobilePoreVolumeName());

    const std::vector<double>& weights = m_caseData->cellScalarResults(mobPVResultIndex)[0];
    const std::vector<double>& values  = m_caseData->cellScalarResults(m_scalarResultIndex, timeStepIndex);

    const RigActiveCellInfo* actCellInfo = m_caseData->activeCellInfo();

    RigWeightedMeanCalc::weightedMeanOverCells(&weights, &values, m_cellVisibilities.p(), true, actCellInfo, m_caseData->isUsingGlobalActiveIndex(m_scalarResultIndex), &result);
}