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

 *

 * Project:  OpenGIS Simple Features Reference Implementation

 * Purpose:  Private definitions within the OGR GMT driver.

 * Author:   Frank Warmerdam, warmerdam@pobox.com

 *

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

 * Copyright (c) 2007, Frank Warmerdam <warmerdam@pobox.com>

 *

 * SPDX-License-Identifier: MIT

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

#ifndef OGRGMT_H_INCLUDED

#define OGRGMT_H_INCLUDED

#include "ogrsf_frmts.h"

#include "ogr_api.h"

#include "cpl_string.h"

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

/*                             OGRGmtLayer                              */

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

class OGRGmtLayer final : public OGRLayer,

                          public OGRGetNextFeatureThroughRaw<OGRGmtLayer>

{

    GDALDataset *m_poDS = nullptr;

    OGRSpatialReference *m_poSRS = nullptr;

    OGRFeatureDefn *poFeatureDefn{};

    int iNextFID{};

    bool bUpdate{};

    bool bHeaderComplete{};

    bool bRegionComplete{};

    OGREnvelope sRegion{};

    vsi_l_offset nRegionOffset{};

    VSILFILE *m_fp = nullptr;

    bool ReadLine();

    CPLString osLine{};

    char **papszKeyedValues{};

    bool ScanAheadForHole();

    bool NextIsFeature();

    OGRFeature *GetNextRawFeature();

    OGRErr WriteGeometry(OGRGeometryH hGeom, bool bHaveAngle);

    OGRErr CompleteHeader(OGRGeometry *);

    CPL_DISALLOW_COPY_ASSIGN(OGRGmtLayer)

  public:

    bool bValidFile;

    OGRGmtLayer(GDALDataset *poDS, const char *pszFilename, VSILFILE *fp,

                const OGRSpatialReference *poSRS, int bUpdate);

    ~OGRGmtLayer() override;

    void ResetReading() override;

    DEFINE_GET_NEXT_FEATURE_THROUGH_RAW(OGRGmtLayer)

    const OGRFeatureDefn *GetLayerDefn() const override

    {

        return poFeatureDefn;

    }

    OGRErr IGetExtent(int iGeomField, OGREnvelope *psExtent,

                      bool bForce) override;

    OGRErr ICreateFeature(OGRFeature *poFeature) override;

    virtual OGRErr CreateField(const OGRFieldDefn *poField,

                               int bApproxOK = TRUE) override;

    int TestCapability(const char *) const override;

    GDALDataset *GetDataset() override

    {

        return m_poDS;

    }

};

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

/*                           OGRGmtDataSource                           */

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

class OGRGmtDataSource final : public GDALDataset

{

    OGRGmtLayer **papoLayers;

    int nLayers;

    bool bUpdate;

    CPL_DISALLOW_COPY_ASSIGN(OGRGmtDataSource)

  public:

    OGRGmtDataSource();

    ~OGRGmtDataSource() override;

    int Open(const char *pszFilename, VSILFILE *fp,

             const OGRSpatialReference *poSRS, int bUpdate);

    int GetLayerCount() const override

    {

        return nLayers;

    }

    const OGRLayer *GetLayer(int) const override;

    OGRLayer *ICreateLayer(const char *pszName,

                           const OGRGeomFieldDefn *poGeomFieldDefn,

                           CSLConstList papszOptions) override;

    int TestCapability(const char *) const override;

};

#endif /* ndef OGRGMT_H_INCLUDED */