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

 *

 * Project:  GDAL

 * Purpose:  Common code between raster compare and mdim compare

 * Author:   Even Rouault <even dot rouault at spatialys.com>

 *

 ******************************************************************************

 * Copyright (c) 2026, Even Rouault <even dot rouault at spatialys.com>

 *

 * SPDX-License-Identifier: MIT

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

#ifndef GDALALG_COMPARE_COMMON_INCLUDED

#define GDALALG_COMPARE_COMMON_INCLUDED

#include "gdalalgorithm.h"

#include <algorithm>

#include <string>

#include <vector>

//! @cond Doxygen_Suppress

class GDALAlgorithm;

class GDALDataset;

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

/*                          GDALCompareCommon                           */

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

class GDALCompareCommon

{

  public:

    virtual ~GDALCompareCommon();

  protected:

    GDALCompareCommon();

    static constexpr const char *METRIC_ALL = "all";

    static constexpr const char *METRIC_NONE = "none";

    static constexpr const char *METRIC_DIFF = "diff";

    static constexpr const char *METRIC_RMSD = "RMSD";

    static constexpr const char *METRIC_PSNR = "PSNR";

    static constexpr const char *METRIC_DEFAULT = METRIC_DIFF;

    std::vector<std::string> m_metrics{METRIC_DEFAULT};

    GDALArgDatasetValue m_referenceDataset{};

    std::vector<std::string> m_array{};

    bool m_skipBinary = false;

    int m_retCode = 0;

    bool HasMetric(const char *pszMetric) const

    {

        CPLAssert(!EQUAL(pszMetric, METRIC_ALL));

        return std::find(m_metrics.begin(), m_metrics.end(), pszMetric) !=

                   m_metrics.end() ||

               (!EQUAL(pszMetric, METRIC_NONE) &&

                std::find(m_metrics.begin(), m_metrics.end(), METRIC_ALL) !=

                    m_metrics.end());

    }

    static bool BinaryComparison(GDALAlgorithm *alg,

                                 std::vector<std::string> &aosReport,

                                 GDALDataset *poRefDS, GDALDataset *poInputDS);

};

//! @endcond

#endif