#ifdef USE_HDF5

#include "gtest/gtest.h"

#include "RiaTestDataDirectory.h"
#include "RifHdf5SummaryReader.h"
#include "RifOpmHdf5Summary.h"

#include "H5Cpp.h"

#include <iostream>

#include "opm/io/eclipse/ESmry.hpp"

static const QString H5_TEST_DATA_DIRECTORY = QString( "%1/h5-file/" ).arg( TEST_DATA_DIR );

//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
TEST( HDFTests, InspectSummaryData )
{
    std::string file_path = H5_TEST_DATA_DIRECTORY.toStdString() + "NORNE_ATW2013_RFTPLT_V2.h5";

    try
    {
        H5::Exception::dontPrint(); // Turn off auto-printing of failures to handle the errors appropriately

        H5::H5File file( file_path.c_str(), H5F_ACC_RDONLY );

        {
            H5::Group   GridFunction_00002 = file.openGroup( "summary_vectors/BPR/66" );
            H5::DataSet dataset            = H5::DataSet( GridFunction_00002.openDataSet( "values" ) );

            hsize_t       dims[2];
            H5::DataSpace dataspace = dataset.getSpace();
            dataspace.getSimpleExtentDims( dims, nullptr );

            std::vector<double> values;
            values.resize( dims[0] );
            dataset.read( values.data(), H5::PredType::NATIVE_DOUBLE );
            EXPECT_EQ( size_t( 894 ), values.size() );
        }
    }

    catch ( H5::FileIException& error ) // catch failure caused by the H5File operations
    {
        std::cout << error.getCDetailMsg();
    }

    catch ( H5::DataSetIException& error ) // catch failure caused by the DataSet operations
    {
        std::cout << error.getCDetailMsg();
    }

    catch ( H5::DataSpaceIException& error ) // catch failure caused by the DataSpace operations
    {
        std::cout << error.getCDetailMsg();
    }

    catch ( H5::DataTypeIException& error ) // catch failure caused by the DataSpace operations
    {
        std::cout << error.getCDetailMsg();
    }
}

//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
TEST( HDFTests, ReadSummaryData )
{
    QString filePath = H5_TEST_DATA_DIRECTORY + "NORNE_ATW2013_RFTPLT_V2.h5";

    RifHdf5SummaryReader hdf5SummaryReader( filePath );

    auto vectorNames = hdf5SummaryReader.vectorNames();
    EXPECT_EQ( size_t( 211 ), vectorNames.size() );

    auto timeSteps = hdf5SummaryReader.timeSteps();
    EXPECT_EQ( size_t( 894 ), timeSteps.size() );
}

//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
TEST( HDFTests, ReadOpmSummaryData )
{
    QString filePath = H5_TEST_DATA_DIRECTORY + "NORNE_ATW2013_RFTPLT_V2.SMSPEC";

    RifOpmHdf5Summary hdf5SummaryReader;
    hdf5SummaryReader.open( filePath, false, nullptr );

    auto addresses = hdf5SummaryReader.allResultAddresses();
    EXPECT_EQ( size_t( 2770 ), addresses.size() );

    int    itemCount       = 0;
    size_t totalValueCount = 0;
    for ( const auto& adr : addresses )
    {
        if ( itemCount++ < 10 )
        {
            std::vector<double> values;
            hdf5SummaryReader.values( adr, &values );

            totalValueCount += values.size();
        }
    }

    EXPECT_EQ( size_t( 8940 ), totalValueCount );
}

//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
TEST( DISABLED_HDFTests, ReadOpmSummaryDataListContent )
{
    QString filePath = H5_TEST_DATA_DIRECTORY + "NORNE_ATW2013_RFTPLT_V2.SMSPEC";

    Opm::EclIO::ESmry eSmry( filePath.toStdString() );

    auto nodes = eSmry.summaryNodeList();

    for ( size_t i = 0; i < nodes.size(); i++ )
    {
        Opm::EclIO::SummaryNode n = nodes[i];
        std::cout << n.keyword << " number: " << n.number << " msjNumber: " << n.smspecKeywordIndex << " "
                  << n.unique_key() << "\n";
    }
}

//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
TEST( DISABLED_HDFTests, BasicFileRead )
{
    std::string file_path = "D:/ResInsight/SourSim/PKMUNK_NOV_TEST_SS.sourpre.00001";

    try
    {
        H5::Exception::dontPrint(); // Turn off auto-printing of failures to handle the errors appropriately

        H5::H5File file( file_path.c_str(), H5F_ACC_RDONLY );

        {
            H5::Group     timestep = file.openGroup( "Timestep_00001" );
            H5::Attribute attr     = timestep.openAttribute( "timestep" );

            double timestep_value = 0.0;

            H5::DataType type = attr.getDataType();
            attr.read( type, &timestep_value );

            // std::cout << "Timestep value " << timestep_value << std::endl;
            EXPECT_NEAR( timestep_value, 1.0, 1e-1 );
        }

        {
            // Group size is not an attribute!

            H5::Group GridFunctions = file.openGroup( "Timestep_00001/GridParts/GridPart_00000/GridFunctions" );

            hsize_t group_size = GridFunctions.getNumObjs();

            // std::cout << "GridFunctions group_size " << group_size << std::endl;
            EXPECT_EQ( size_t( 20 ), group_size );

            /*            for (hsize_t i = 0; i < group_size; i++)
                        {
                            // H5std_string node_name = GridFunctions.getObjnameByIdx(i);     // crashes on VS2017 due
               to lib/heap/runtime differences to HDF5 VS2015 lib

                            std::string node_name;
                            node_name.resize(1024);

                            ssize_t slen = GridFunctions.getObjnameByIdx(i, &node_name[0], 1023);

                            node_name.resize(slen + 1);

                            std::cout << "GridFunctions sub-node name " << node_name << std::endl;
                        }
            */

            std::string first_subnode( 1024, '\0' );

            ssize_t slen = GridFunctions.getObjnameByIdx( 0, &first_subnode[0], 1023 );
            first_subnode.resize( slen + 1 );

            EXPECT_TRUE( first_subnode.compare( 0, slen, "GridFunction_00002" ) == 0 );
        }

        {
            H5::Group GridFunction_00002 =
                file.openGroup( "Timestep_00001/GridParts/GridPart_00000/GridFunctions/GridFunction_00002" );
            H5::Attribute attr = GridFunction_00002.openAttribute( "limits_max" );

            double limits_max = 0.0;

            H5::DataType type = attr.getDataType();
            attr.read( type, &limits_max );

            //            std::cout << "limits_max " << limits_max << std::endl;
            EXPECT_NEAR( limits_max, 0.3970204292629652, 1e-10 );
        }

        {
            H5::Group GridFunction_00002 =
                file.openGroup( "Timestep_00001/GridParts/GridPart_00000/GridFunctions/GridFunction_00002" );
            H5::DataSet dataset = H5::DataSet( GridFunction_00002.openDataSet( "values" ) );

            hsize_t       dims[2];
            H5::DataSpace dataspace = dataset.getSpace();
            dataspace.getSimpleExtentDims( dims, nullptr );

            std::vector<double> values;
            values.resize( dims[0] );
            dataset.read( values.data(), H5::PredType::NATIVE_DOUBLE );

            /*            for (hsize_t i = 0; i < dims[0]; i++)
                        {
                            std::cout << "value " << i << " " << values[i] << std::endl;

                        }
            */
            EXPECT_NEAR( values[0], 0.32356910366452146, 1e-10 );
            EXPECT_NEAR( values[dims[0] - 1], 0.12200070891582514, 1e-10 );
        }

    } // end of try block

    catch ( H5::FileIException& error ) // catch failure caused by the H5File operations
    {
        std::cout << error.getCDetailMsg();
    }

    catch ( H5::DataSetIException& error ) // catch failure caused by the DataSet operations
    {
        std::cout << error.getCDetailMsg();
    }

    catch ( H5::DataSpaceIException& error ) // catch failure caused by the DataSpace operations
    {
        std::cout << error.getCDetailMsg();
    }

    catch ( H5::DataTypeIException& error ) // catch failure caused by the DataSpace operations
    {
        std::cout << error.getCDetailMsg();
    }
}

#endif // USE_HDF5