/******************************************************************************
* Copyright (c) 2016, Bradley J Chambers (brad.chambers@gmail.com)
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
* conditions are met:
*
*     * Redistributions of source code must retain the above copyright
*       notice, this list of conditions and the following disclaimer.
*     * Redistributions in binary form must reproduce the above copyright
*       notice, this list of conditions and the following disclaimer in
*       the documentation and/or other materials provided
*       with the distribution.
*     * Neither the name of Hobu, Inc. or Flaxen Geo Consulting nor the
*       names of its contributors may be used to endorse or promote
*       products derived from this software without specific prior
*       written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* OF SUCH DAMAGE.
****************************************************************************/

#include "HausdorffKernel.hpp"

#include <memory>

#include <pdal/PDALUtils.hpp>
#include <pdal/PointView.hpp>
#include <pdal/pdal_config.hpp>

namespace pdal
{

static StaticPluginInfo const s_info
{
    "kernels.hausdorff",
    "Hausdorff Kernel",
    "http://pdal.io/apps/hausdorff.html"
};

CREATE_STATIC_KERNEL(HausdorffKernel, s_info)

std::string HausdorffKernel::getName() const
{
    return s_info.name;
}

void HausdorffKernel::addSwitches(ProgramArgs& args)
{
    Arg& source = args.add("source", "Source filename", m_sourceFile);
    source.setPositional();
    Arg& candidate = args.add("candidate", "Candidate filename",
                              m_candidateFile);
    candidate.setPositional();
}


PointViewPtr HausdorffKernel::loadSet(const std::string& filename,
                                      PointTableRef table)
{
    Stage& reader = makeReader(filename, "");
    reader.prepare(table);
    PointViewSet viewSet = reader.execute(table);
    assert(viewSet.size() == 1);
    return *viewSet.begin();
}


int HausdorffKernel::execute()
{
    ColumnPointTable srcTable;
    PointViewPtr srcView = loadSet(m_sourceFile, srcTable);

    ColumnPointTable candTable;
    PointViewPtr candView = loadSet(m_candidateFile, candTable);

    double hausdorff = Utils::computeHausdorff(srcView, candView);

    MetadataNode root;
    root.add("filenames", m_sourceFile);
    root.add("filenames", m_candidateFile);
    root.add("hausdorff", hausdorff);
    root.add("pdal_version", Config::fullVersionString());
    Utils::toJSON(root, std::cout);

    return 0;
}

} // namespace pdal
