/******************************************************************************
* Copyright (c) 2016, 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. 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/Log.hpp>
#include <pdal/PointRef.hpp>
#include <pdal/SpatialReference.hpp>

#include <memory>

// Forward decl
class OGRGeometry;

// Get GDAL's forward decls if available
// otherwise make our own
#if __has_include(<gdal_fwd.h>)
#include <gdal_fwd.h>
#else
using OGRGeometryH = void *;
using OGRSpatialReferenceH = void *;
#endif

namespace pdal
{

class BOX3D;

class PDAL_EXPORT Geometry
{

public:
    Geometry(const std::string& wkt_or_wkb_or_json,
           SpatialReference ref = SpatialReference());
    Geometry() = default;
    Geometry(const Geometry&);
    Geometry(double x, double y, double z, SpatialReference ref = SpatialReference());
    Geometry(Geometry&&);

    // The redirection to the construct function is to deal with GDAL types changing
    // depending on debug.
    Geometry(OGRGeometryH g)
        { construct(reinterpret_cast<void *>(g)); }
    Geometry(OGRGeometryH g, const SpatialReference& srs)
        { construct(reinterpret_cast<void *>(g), srs); }

    Geometry& operator=(const Geometry&);
    virtual ~Geometry() = default;

    OGRGeometryH getOGRHandle()
    { return reinterpret_cast<OGRGeometryH>(m_geom.get()); }

    virtual void update(const std::string& wkt_or_json);
    virtual bool valid() const;
    virtual void clear();
    virtual void modified();
    bool srsValid() const;
    void setSpatialReference(const SpatialReference& ref);
    SpatialReference getSpatialReference() const;
    Utils::StatusWithReason transform(SpatialReference ref);

    std::string wkt(double precision=15, bool bOutputZ=false) const;
    std::string wkb() const;
    std::string json(double precision=15) const;

    BOX3D bounds() const;

    operator bool () const
        { return m_geom != NULL; }
    static void throwNoGeos();

    double distance(double x, double y, double z) const;
    Geometry getRing() const;

protected:
    struct PDAL_EXPORT OGRGeometryDeleter
    {
        void operator()(OGRGeometry *geom);
    };
    std::unique_ptr<OGRGeometry, OGRGeometryDeleter> m_geom;

    void construct(void *geom);  // geom is an OGRGeometry handle.
    void construct(void *geom, const SpatialReference& srs);  // geom is an OGRGeometry handle.

    friend PDAL_EXPORT std::ostream& operator<<(std::ostream& ostr,
        const Geometry& p);
    friend PDAL_EXPORT std::istream& operator>>(std::istream& istr,
        Geometry& p);
};

} // namespace pdal

