/******************************************************************************
* Copyright (c) 2011, Michael P. Gerlek (mpg@flaxen.com)
* Copyright (c) 2014, 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
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* OF SUCH DAMAGE.
****************************************************************************/

#include "SmoothKernel.hpp"

#include <io/BufferReader.hpp>

#include "../filters/PCLBlock.hpp"

namespace pdal
{

static PluginInfo const s_info
{
    "kernels.smooth",
    "Smooth Kernel",
    "http://pdal.io/kernels/kernels.smooth.html"
};

CREATE_SHARED_KERNEL(SmoothKernel, s_info)

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

void SmoothKernel::addSwitches(ProgramArgs& args)
{
    args.add("input,i", "Input filename", m_inputFile).setPositional();
    args.add("output,o", "Output filename", m_outputFile).setPositional();
}


int SmoothKernel::execute()
{
    PointTable table;

    Stage& readerStage(makeReader(m_inputFile, ""));

    // go ahead and prepare/execute on reader stage only to grab input
    // PointViewSet, this makes the input PointView available to both the
    // processing pipeline.
    readerStage.prepare(table);
    PointViewSet viewSetIn = readerStage.execute(table);

    // the input PointViewSet will be used to populate a BufferReader that is
    // consumed by the processing pipeline
    PointViewPtr input_view = *viewSetIn.begin();

    PipelineManager manager;
    manager.commonOptions() = m_manager.commonOptions();
    manager.stageOptions() = m_manager.stageOptions();

    BufferReader& bufferReader =
        dynamic_cast<BufferReader&>(manager.makeReader("", "readers.buffer"));
    bufferReader.addView(input_view);

    std::ostringstream ss;
    ss << "{";
    ss << "  \"pipeline\": {";
    ss << "    \"filters\": [{";
    ss << "      \"name\": \"MovingLeastSquares\"";
    ss << "      }]";
    ss << "    }";
    ss << "}";

    Options filterOptions({"json", ss.str()});
    Stage& smoothStage = manager.makeFilter("filters.pclblock", bufferReader,
        filterOptions);

    Stage& writer(Kernel::makeWriter(m_outputFile, smoothStage, ""));

    writer.prepare(table);
    writer.execute(table);

    return 0;
}

} // pdal
