/*****************************************************************************************
 *                                                                                       *
 * OpenSpace                                                                             *
 *                                                                                       *
 * Copyright (c) 2014-2018                                                               *
 *                                                                                       *
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 * software and associated documentation files (the "Software"), to deal in the Software *
 * without restriction, including without limitation the rights to use, copy, modify,    *
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 * permit persons to whom the Software is furnished to do so, subject to the following   *
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 * The above copyright notice and this permission notice shall be included in all copies *
 * or substantial portions of the Software.                                              *
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 ****************************************************************************************/

#include <modules/galaxy/tasks/milkywaypointsconversiontask.h>

#include <modules/volume/textureslicevolumereader.h>
#include <modules/volume/rawvolumewriter.h>
#include <modules/volume/volumesampler.h>

#include <openspace/documentation/documentation.h>

#include <fstream>
#include <iostream>
#include <vector>

namespace openspace {

/*MilkywayPointsConversionTask::MilkywayPointsConversionTask(
    const std::string& inFilename,
    const std::string& outFilename)
    : _inFilename(inFilename)
    , _outFilename(outFilename) {}*/

MilkywayPointsConversionTask::MilkywayPointsConversionTask(const ghoul::Dictionary&) {}

MilkywayPointsConversionTask::~MilkywayPointsConversionTask() {}

std::string MilkywayPointsConversionTask::description()
{
    return std::string();
}

void MilkywayPointsConversionTask::perform(const Task::ProgressCallback& progressCallback)
{
    std::ifstream in(_inFilename, std::ios::in);
    std::ofstream out(_outFilename, std::ios::out | std::ios::binary);

    std::string format;
    int64_t nPoints;
    in >> format >> nPoints;

    size_t nFloats = nPoints * 7;

    std::vector<float> pointData(nFloats);

    float x, y, z, r, g, b, a;
    for (int64_t i = 0; i < nPoints; ++i) {
        in >> x >> y >> z >> r >> g >> b >> a;
        if (in.good()) {
            pointData[i * 7 + 0] = x;
            pointData[i * 7 + 1] = y;
            pointData[i * 7 + 2] = z;
            pointData[i * 7 + 3] = r;
            pointData[i * 7 + 4] = g;
            pointData[i * 7 + 5] = b;
            pointData[i * 7 + 6] = a;
            progressCallback(static_cast<float>(i + 1) / nPoints);
        }
        else {
            std::cout << "Failed to convert point data.";
            return;
        }
    }

    out.write(reinterpret_cast<char*>(&nPoints), sizeof(int64_t));
    out.write(reinterpret_cast<char*>(pointData.data()), nFloats * sizeof(float));

    in.close();
    out.close();
}

documentation::Documentation MilkywayPointsConversionTask::documentation()
{
    return documentation::Documentation();
}

}