/**********************************************************************

 *

 * GEOS - Geometry Engine Open Source

 * http://geos.osgeo.org

 *

 * Copyright (C) 2001-2002 Vivid Solutions Inc.

 * Copyright (C) 2005 2006 Refractions Research Inc.

 * Copyright (C) 2011 Sandro Santilli <strk@kbt.io>

 * Copyright (C) 2024 ISciences, LLC

 *

 * This is free software; you can redistribute and/or modify it under

 * the terms of the GNU Lesser General Public Licence as published

 * by the Free Software Foundation.

 * See the COPYING file for more information.

 *

 **********************************************************************/

#pragma once

#include <geos/geom/Curve.h>

#include <geos/geom/Geometry.h>

namespace geos {

namespace geom {

class GEOS_DLL SimpleCurve : public Curve {

public:

    using Curve::apply_ro;

    using Curve::apply_rw;

    void apply_ro(CoordinateFilter* filter) const override;

    void apply_ro(CoordinateSequenceFilter& filter) const override;

    void apply_rw(CoordinateSequenceFilter& filter) override;

    void apply_rw(const CoordinateFilter* filter) override;

    bool equalsExact(const Geometry* other, double tolerance = 0)

    const override;

    bool equalsIdentical(const Geometry* other) const override;

    /**

     * \brief

     * Returns a MultiPoint.

     * Empty for closed Curve, a Point for each vertex otherwise.

     */

    std::unique_ptr<Geometry> getBoundary() const override;

    const CoordinateXY* getCoordinate() const override;

    /// Returns coordinate dimension.

    uint8_t getCoordinateDimension() const override;

    virtual const Coordinate& getCoordinateN(std::size_t n) const;

    std::unique_ptr<CoordinateSequence> getCoordinates() const override;

    /// Returns a read-only pointer to internal CoordinateSequence

    const CoordinateSequence* getCoordinatesRO() const;

    const SimpleCurve* getCurveN(std::size_t) const override;

    /// \brief

    /// Return the end point of the LineString

    /// or NULL if this is an EMPTY LineString.

    ///

    virtual std::unique_ptr<Point> getEndPoint() const;

    const Envelope* getEnvelopeInternal() const override

    {

        return &envelope;

    }

    std::size_t getNumCurves() const override;

    std::size_t getNumPoints() const override;

    virtual std::unique_ptr<Point> getPointN(std::size_t n) const;

    /// \brief

    /// Return the start point of the LineString

    /// or NULL if this is an EMPTY LineString.

    ///

    virtual std::unique_ptr<Point> getStartPoint() const;

    bool hasM() const override;

    bool hasZ() const override;

    bool isClosed() const override;

    virtual bool isCoordinate(CoordinateXY& pt) const;

    virtual bool isCurved() const = 0;

    bool isEmpty() const override;

    /** \brief

     * Normalizes a SimpleCurve.

     *

     * A normalized simple curve

     * has the first point which is not equal to its reflected point

     * less than the reflected point.

     */

    void normalize() override;

    /**

     * \brief

     * Take ownership of the CoordinateSequence managed by this geometry.

     * After releasing the coordinates, the geometry should be considered

     * in a moved-from state and should not be accessed.

     * @return this Geometry's CoordinateSequence.

     */

    std::unique_ptr<CoordinateSequence> releaseCoordinates();

protected:

    SimpleCurve(const SimpleCurve& other);

    SimpleCurve(std::unique_ptr<CoordinateSequence>&& newCoords,

                bool isLinear,

                const GeometryFactory& factory);

    int compareToSameClass(const Geometry* ls) const override;

    Envelope computeEnvelopeInternal(bool isLinear) const;

    // TODO: hold value or shared_ptr instead of unique_ptr?

    std::unique_ptr<CoordinateSequence> points;

    mutable Envelope envelope;

private:

    void normalizeClosed();

};

}

}