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

 *

 * Project:  KML Driver

 * Purpose:  Class for building up the node structure of the kml file.

 * Author:   Jens Oberender, j.obi@troja.net

 *

 ******************************************************************************

 * Copyright (c) 2007, Jens Oberender

 * Copyright (c) 2009-2012, Even Rouault <even dot rouault at spatialys.com>

 *

 * SPDX-License-Identifier: MIT

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

#ifndef OGR_KMLNODE_H_INCLUDED

#define OGR_KMLNODE_H_INCLUDED

#ifdef HAVE_EXPAT

#include "kml.h"

#include "kmlutility.h"

// std

#include <iostream>

#include <limits>

#include <string>

#include <vector>

std::string Nodetype2String(Nodetype const &type);

class KMLNode

{

    CPL_DISALLOW_COPY_ASSIGN(KMLNode)

  public:

    KMLNode();

    ~KMLNode();

    void print(unsigned int what = 3);

    int classify(KML *poKML, int nRecLevel = 0);

    void eliminateEmpty(KML *poKML);

    bool hasOnlyEmpty() const;

    void setType(Nodetype type);

    Nodetype getType() const;

    void setName(std::string const &name);

    const std::string &getName() const;

    void setLevel(std::size_t level);

    std::size_t getLevel() const;

    void addAttribute(Attribute *poAttr);

    void setParent(KMLNode *poNode);

    KMLNode *getParent() const;

    void addChildren(KMLNode *poNode);

    std::size_t countChildren() const;

    KMLNode *getChild(std::size_t index) const;

    void addContent(std::string const &text);

    void appendContent(std::string const &text);

    const std::string &getContent(std::size_t index) const;

    void deleteContent(std::size_t index);

    std::size_t numContent() const;

    void setLayerNumber(int nNum);

    int getLayerNumber() const;

    std::string getNameElement() const;

    std::string getDescriptionElement() const;

    std::size_t getNumFeatures();

    Feature *getFeature(std::size_t nNum, int &nLastAsked, int &nLastCount);

    OGRGeometry *getGeometry(Nodetype eType = Unknown);

    bool is25D() const

    {

        return b25D_;

    }

    typedef std::vector<Attribute *> kml_attributes_t;

    const kml_attributes_t &getAttributes() const

    {

        return voAttributes_;

    }

  private:

    typedef std::vector<KMLNode *> kml_nodes_t;

    kml_nodes_t *pvpoChildren_ = nullptr;

    typedef std::vector<std::string> kml_content_t;

    kml_content_t *pvsContent_ = nullptr;

    kml_attributes_t voAttributes_{};

    KMLNode *poParent_ = nullptr;

    std::size_t nLevel_ = 0;

    std::string sName_{};

    Nodetype eType_ = Unknown;

    bool b25D_ = false;

    int nLayerNumber_ = -1;

    size_t nNumFeatures_ = std::numeric_limits<size_t>::max();

    void unregisterLayerIfMatchingThisNode(KML *poKML);

};

#endif  // HAVE_EXPAT

#endif /* OGR_KMLNODE_H_INCLUDED */