/******************************************************************************
* Copyright (c) 2015, Howard Butler (howard@hobu.co)
*
* 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
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
****************************************************************************/

#pragma once

#include <pdal/PointView.hpp>
#include <pdal/Reader.hpp>
#include <pdal/StageFactory.hpp>
#include <filters/MergeFilter.hpp>

#include <pdal/JsonFwd.hpp>

namespace pdal
{

namespace gdal { class SpatialRef; }

class PDAL_DLL TIndexReader : public Reader, public Streamable
{
    struct FileInfo
    {
        std::string m_filename;
        std::string m_srs;
        std::string m_boundary;
        struct tm m_ctime;
        struct tm m_mtime;
    };

    struct FieldIndexes
    {
        int m_filename;
        int m_srs;
        int m_ctime;
        int m_mtime;
    };

public:
    TIndexReader();

    std::string getName() const override;

private:
    virtual void addDimensions(PointLayoutPtr layout) override;
    virtual void addArgs(ProgramArgs& args) override;
    virtual void initialize() override;
    virtual void prepared(PointTableRef table) override;
    virtual void ready(PointTableRef table) override;
    virtual PointViewSet run(PointViewPtr view) override;
    virtual point_count_t read(PointViewPtr view, point_count_t num) override;
    virtual bool processOne(PointRef& point) override;

    void handleReaderArgs();
    Options setReaderOptions(const NL::json& readerArgs,
                             const std::string& driver) const;

    struct Args;

    std::unique_ptr<Args> m_args;
    std::unique_ptr<gdal::SpatialRef> m_out_ref;
    void *m_dataset;
    void *m_layer;

    StageFactory m_factory;
    MergeFilter m_merge;

    std::vector<FileInfo> getFiles();
    FieldIndexes getFields();
};


} // namespace pdal
