#include <QtNetwork>
#include <octave/oct.h>
#include "riSettings.h"


void setEclipseProperty(const NDArray& propertyFrames, const QString &hostName, quint16 port,
                        const qint64& caseId, const qint64& gridIndex, QString propertyName, const int32NDArray& timeStepIndices, QString porosityModel)
{
    QTcpSocket socket;
    socket.connectToHost(hostName, port);

    if (!socket.waitForConnected(riOctavePlugin::shortTimeOutMilliSecs))
    {
        error((("Connection: ") + socket.errorString()).toLatin1().data());
        return;
    }

    QDataStream socketStream(&socket);
    socketStream.setVersion(riOctavePlugin::qtDataStreamVersion);

    // Create command as a string with arguments , and send it:

    QString command = QString("SetGridProperty %1 %2 %3 %4").arg(caseId).arg(gridIndex).arg(propertyName).arg(porosityModel);

    for (int i = 0; i < timeStepIndices.length(); ++i)
    {
        if (i == 0) command += " ";
        command += QString::number(static_cast<int>(timeStepIndices.elem(i)) - 1); // To make the index 0-based
        if (i != timeStepIndices.length() -1) command += " ";
    }

    QByteArray cmdBytes = command.toLatin1();

    socketStream << (qint64)(cmdBytes.size());
    socket.write(cmdBytes);

    // Write property data header

    dim_vector mxDims = propertyFrames.dims();

    qint64 cellCountI = mxDims.elem(0);
    qint64 cellCountJ = mxDims.elem(1);
    qint64 cellCountK = mxDims.elem(2);
    
    qint64 timeStepCount = 0;
    if (mxDims.length() > 3)
    {
        timeStepCount = mxDims.elem(3);
    }
    else
    {
        timeStepCount = 1;
    }

    qint64 singleTimeStepByteCount = cellCountI * cellCountJ * cellCountK * sizeof(double);

    //octave_stdout << " Cell count I: " << cellCountI << " Cell count J: " << cellCountJ << " Cell count K: " << cellCountK << std::endl;
    //octave_stdout << " Time step count: " << timeStepCount <<  std::endl;

    socketStream << (qint64)(cellCountI);
    socketStream << (qint64)(cellCountJ);
    socketStream << (qint64)(cellCountK);
    socketStream << (qint64)(timeStepCount);
    socketStream << (qint64)singleTimeStepByteCount;

    const double* internalData = propertyFrames.fortran_vec();
    int dataWritten = socket.write((const char *)internalData, singleTimeStepByteCount*timeStepCount);

    if (dataWritten == singleTimeStepByteCount*timeStepCount)
    {
        QString tmp = QString("riSetGridProperty : Wrote %1").arg(propertyName);

        if (caseId == -1)
        {
            tmp += QString(" to current case,");
        }
        else
        {
            tmp += QString(" to case with Id = %1,").arg(caseId);
        }
        
        tmp += QString(" grid index: %1, ").arg(gridIndex);

        octave_stdout << tmp.toStdString() << " Time steps : " << timeStepCount << std::endl;
    }
    else
    {
        size_t cellCount = cellCountI * cellCountJ * cellCountK;
        error("riSetGridProperty : Was not able to write the proper amount of data to ResInsight:");
        octave_stdout << " Cell count : " << cellCount << "Time steps : " << timeStepCount << " Data Written: " << dataWritten << " Should have written: " << timeStepCount * cellCount * sizeof(double) << std::endl;
    }

    while(socket.bytesToWrite() && socket.state() == QAbstractSocket::ConnectedState)
    {
        // octave_stdout << "Bytes to write: " << socket.bytesToWrite() << std::endl;
        socket.waitForBytesWritten(riOctavePlugin::longTimeOutMilliSecs);
        OCTAVE_QUIT;
    }

    if (socket.bytesToWrite() && socket.state() != QAbstractSocket::ConnectedState)
    {
        error("riSetGridProperty : ResInsight refused to accept the data. Maybe the dimensions or porosity model is wrong.\n");
    }
    return;
}



DEFUN_DLD (riSetGridProperty, args, nargout,
           "Usage:\n"
           "\n"
           "\triSetGridProperty( Matrix[numI][numJ][numK][numTimeSteps], [CaseId], GridIndex, PropertyName, [TimeStepIndices], [PorosityModel = \"Matrix\"|\"Fracture\"] ) \n"
           "\n"
           "Interprets the supplied matrix as a property set defined for all cells in one of the grids in a case, and puts the data into ResInsight as a \"Generated\" property with the name \"PropertyName\".\n"
           "If the CaseId is not defined, ResInsight’s Current Case is used.\n"
           )
{
    int nargin = args.length ();
    if (nargin < 2)
    {
        error("riSetGridProperty: Too few arguments, required input parameters are the data matrix, grid index and property name.\n");
        print_usage();
        return octave_value_list ();
    }

    if (nargin > 6)
    {
        error("riSetGridProperty: Too many arguments.\n");
        print_usage();
        return octave_value_list ();
    }

    NDArray propertyFrames = args(0).array_value();

    if (error_state)
    {
        error("riSetGridProperty: The supplied first argument is not a valid Matrix");
        print_usage();

        return octave_value_list ();
    }


    dim_vector mxDims = propertyFrames.dims();
    if (!(mxDims.length() == 3 || mxDims.length() == 4))
    {
        error("riSetGridProperty: The supplied Data Matrix must have three dimensions (numI*numJ*numK*1) or four dimensions (numI*numJ*numK*numTimeSteps)");
        print_usage();

        return octave_value_list ();
    }
    std::vector<int> argIndices;
    argIndices.push_back(0); // Array data
    argIndices.push_back(1); // Case Id
    argIndices.push_back(2); // GridIndex
    argIndices.push_back(3); // Property name
    argIndices.push_back(4); // Time step indices
    argIndices.push_back(5); // Porosity model

    // Check that the second argument is an integer
    if (!args(argIndices[1]).is_real_scalar()) // Check if second argument is an int. If it is
    {
        error("riSetGridProperty: The GridIndex argument is missing");
        print_usage();

        return octave_value_list ();
    }

    // Check if we do not have a CaseId:
    if (args(argIndices[2]).is_string()) // Check if second argument is a text. If it is, the caseid is missing
    {
        argIndices[1] = -1;
        for (size_t aIdx = 2; aIdx < argIndices.size(); ++aIdx)
            --argIndices[aIdx];
    }

    // Check if we have a Requested TimeSteps

    if (!(nargin > argIndices[4] && args(argIndices[4]).is_matrix_type()))
    {
        argIndices[4] = -1;
        for (size_t aIdx = 5; aIdx < argIndices.size(); ++aIdx)
            --argIndices[aIdx];
    }

    // Check if we have a PorosityModel

    int lastArgumentIndex = argIndices[5] ;
    if (!(nargin > argIndices[5] && args(argIndices[5]).is_string()))
    {
        argIndices[5] = -1;
        for (size_t aIdx = 6; aIdx < argIndices.size(); ++aIdx)
            --argIndices[aIdx];
    }

    // Check if we have more arguments than we should
    if (nargin > lastArgumentIndex + 1)
    {
        error("riSetGridProperty: Unexpected argument after the PorosityModel.\n");
        print_usage();
        return octave_value_list ();
    }


    int caseId = -1;
    int gridIndex = 0;
    std::string propertyName = "UNDEFINED";
    int32NDArray timeStepIndices;
    std::string porosityModel = "Matrix";

    if (argIndices[1] >= 0) caseId          = args(argIndices[1]).int_value();
    if (argIndices[2] >= 0) gridIndex       = args(argIndices[2]).int_value();
    if (argIndices[3] >= 0) propertyName    = args(argIndices[3]).char_matrix_value().row_as_string(0);
    if (argIndices[4] >= 0) timeStepIndices = args(argIndices[4]).int32_array_value();
    if (argIndices[5] >= 0) porosityModel   = args(argIndices[5]).string_value();

    if (timeStepIndices.length() > 1)
    {
        if (mxDims.length() == 3)
        {
            error("riSetGridProperty: The input matrix has three dimensions, but there are more than one time step in [TimeStepIndices]. If more than one time step is defined, the data matrix must be 4D.");
            print_usage();
            return octave_value_list ();
        }
        
        int timeStepCount = mxDims.elem(3);
        if (timeStepIndices.length() != timeStepCount)
        {
            error("riSetGridProperty: The number of time steps in the input matrix must match the number of time steps in the TimeStepIndices array.");
            print_usage();
            return octave_value_list ();
        }
    }

    if (porosityModel != "Matrix" && porosityModel != "Fracture")
    {
        error("riSetGridProperty: The value for \"PorosityModel\" is unknown. Please use either \"Matrix\" or \"Fracture\"\n");
        print_usage();
        return octave_value_list ();
    }

    setEclipseProperty(propertyFrames, "127.0.0.1", 40001, caseId, gridIndex, propertyName.c_str(), timeStepIndices, porosityModel.c_str());

    return octave_value_list ();
}