////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) 2021-     Equinor ASA
//
//  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.
//
/////////////////////////////////////////////////////////////////////////////////

#pragma once

#include "RifSummaryReaderInterface.h"

#include <memory>
#include <string>
#include <vector>

class RiaThreadSafeLogger;

//==================================================================================================
//
// This class is used to append time history curves from multiple summary files. The summary files are assumed to be
// ordered, and the start of history at the front of the vector
//
//==================================================================================================
class RifSummaryReaderMultipleFiles : public RifSummaryReaderInterface
{
public:
    RifSummaryReaderMultipleFiles( const std::vector<std::string>& filesOrderedByStartOfHistory );

    bool createReadersAndImportMetaData( RiaThreadSafeLogger* threadSafeLogger );

    std::vector<time_t>                  timeSteps( const RifEclipseSummaryAddress& resultAddress ) const override;
    std::pair<bool, std::vector<double>> values( const RifEclipseSummaryAddress& resultAddress ) const override;
    std::string                          unitName( const RifEclipseSummaryAddress& resultAddress ) const override;
    RiaDefines::EclipseUnitSystem        unitSystem() const override;

private:
    size_t timeStepCount( RifSummaryReaderInterface* reader ) const;
    void   calculateOverlappingTimeSteps();

private:
    std::vector<std::string>                                m_fileNames;
    std::vector<std::unique_ptr<RifSummaryReaderInterface>> m_summaryReaders;

    std::map<RifSummaryReaderInterface*, size_t> m_valueCountForReader;
    std::vector<time_t>                          m_aggregatedTimeSteps;
};