/******************************************************************************
 * $Id$
 *
 * Project:  GML Reader
 * Purpose:  Declarations for OGR wrapper classes for GML, and GML<->OGR
 *           translation of geometry.
 * Author:   Frank Warmerdam, warmerdam@pobox.com
 *
 ******************************************************************************
 * Copyright (c) 2002, Frank Warmerdam
 * Copyright (c) 2010-2013, Even Rouault <even dot rouault at spatialys.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 ****************************************************************************/

#ifndef OGR_GML_H_INCLUDED
#define OGR_GML_H_INCLUDED

#include "ogrsf_frmts.h"
#include "gmlreader.h"
#include "gmlutils.h"

#include <memory>
#include <vector>

class OGRGMLDataSource;

typedef enum
{
    STANDARD,
    SEQUENTIAL_LAYERS,
    INTERLEAVED_LAYERS
} ReadMode;

/************************************************************************/
/*                            OGRGMLLayer                               */
/************************************************************************/

class OGRGMLLayer final : public OGRLayer
{
    OGRFeatureDefn *poFeatureDefn;

    GIntBig iNextGMLId;
    bool bInvalidFIDFound;
    char *pszFIDPrefix;

    bool bWriter;
    bool bSameSRS;

    OGRGMLDataSource *poDS;

    GMLFeatureClass *poFClass;

    void *hCacheSRS;

    bool bUseOldFIDFormat;

    bool bFaceHoleNegative;

  public:
    OGRGMLLayer(const char *pszName, bool bWriter, OGRGMLDataSource *poDS);

    virtual ~OGRGMLLayer();

    void ResetReading() override;
    OGRFeature *GetNextFeature() override;

    GIntBig GetFeatureCount(int bForce = TRUE) override;
    OGRErr GetExtent(OGREnvelope *psExtent, int bForce = TRUE) override;
    virtual OGRErr GetExtent(int iGeomField, OGREnvelope *psExtent,
                             int bForce) override
    {
        return OGRLayer::GetExtent(iGeomField, psExtent, bForce);
    }

    OGRErr ICreateFeature(OGRFeature *poFeature) override;

    OGRFeatureDefn *GetLayerDefn() override
    {
        return poFeatureDefn;
    }

    virtual OGRErr CreateField(OGRFieldDefn *poField,
                               int bApproxOK = TRUE) override;
    virtual OGRErr CreateGeomField(OGRGeomFieldDefn *poField,
                                   int bApproxOK = TRUE) override;

    int TestCapability(const char *) override;
};

/************************************************************************/
/*                           OGRGMLDataSource                           */
/************************************************************************/

class OGRGMLDataSource final : public OGRDataSource
{
    OGRLayer **papoLayers;
    int nLayers;

    char *pszName;

    OGRGMLLayer *TranslateGMLSchema(GMLFeatureClass *);

    char **papszCreateOptions;

    // output related parameters
    VSILFILE *fpOutput;
    bool bFpOutputIsNonSeekable;
    bool bFpOutputSingleFile;
    OGREnvelope3D sBoundingRect;
    bool bBBOX3D;
    int nBoundedByLocation;

    int nSchemaInsertLocation;
    bool bIsOutputGML3;
    bool bIsOutputGML3Deegree; /* if TRUE, then bIsOutputGML3 is also TRUE */
    bool bIsOutputGML32;       /* if TRUE, then bIsOutputGML3 is also TRUE */
    OGRGMLSRSNameFormat eSRSNameFormat;
    bool bWriteSpaceIndentation;

    OGRSpatialReference *poWriteGlobalSRS;
    bool bWriteGlobalSRS;

    // input related parameters.
    CPLString osFilename;
    CPLString osXSDFilename;

    IGMLReader *poReader;
    bool bOutIsTempFile;

    void InsertHeader();

    bool bExposeGMLId;
    bool bExposeFid;
    bool bIsWFS;

    bool bUseGlobalSRSName;

    bool m_bInvertAxisOrderIfLatLong;
    bool m_bConsiderEPSGAsURN;
    GMLSwapCoordinatesEnum m_eSwapCoordinates;
    bool m_bGetSecondaryGeometryOption;

    ReadMode eReadMode;
    GMLFeature *poStoredGMLFeature;
    OGRGMLLayer *poLastReadLayer;

    bool bEmptyAsNull;

    OGRSpatialReference m_oStandaloneGeomSRS{};
    std::unique_ptr<OGRGeometry> m_poStandaloneGeom{};

    std::vector<std::string> m_aosGMLExtraElements{};

    void FindAndParseTopElements(VSILFILE *fp);
    void SetExtents(double dfMinX, double dfMinY, double dfMaxX, double dfMaxY);

    void BuildJointClassFromXSD();
    void BuildJointClassFromScannedSchema();

    void WriteTopElements();

  public:
    OGRGMLDataSource();
    virtual ~OGRGMLDataSource();

    bool Open(GDALOpenInfo *poOpenInfo);
    bool Create(const char *pszFile, char **papszOptions);

    const char *GetName() override
    {
        return pszName;
    }
    int GetLayerCount() override
    {
        return nLayers;
    }
    OGRLayer *GetLayer(int) override;

    virtual OGRLayer *ICreateLayer(const char *,
                                   const OGRSpatialReference * = nullptr,
                                   OGRwkbGeometryType = wkbUnknown,
                                   char ** = nullptr) override;

    int TestCapability(const char *) override;

    VSILFILE *GetOutputFP() const
    {
        return fpOutput;
    }
    IGMLReader *GetReader() const
    {
        return poReader;
    }

    void GrowExtents(OGREnvelope3D *psGeomBounds, int nCoordDimension);

    int ExposeId() const
    {
        return bExposeGMLId || bExposeFid;
    }

    static void PrintLine(VSILFILE *fp, const char *fmt, ...)
        CPL_PRINT_FUNC_FORMAT(2, 3);

    bool IsGML3Output() const
    {
        return bIsOutputGML3;
    }
    bool IsGML3DeegreeOutput() const
    {
        return bIsOutputGML3Deegree;
    }
    bool IsGML32Output() const
    {
        return bIsOutputGML32;
    }
    OGRGMLSRSNameFormat GetSRSNameFormat() const
    {
        return eSRSNameFormat;
    }
    bool WriteSpaceIndentation() const
    {
        return bWriteSpaceIndentation;
    }
    const char *GetGlobalSRSName();

    bool GetInvertAxisOrderIfLatLong() const
    {
        return m_bInvertAxisOrderIfLatLong;
    }
    bool GetConsiderEPSGAsURN() const
    {
        return m_bConsiderEPSGAsURN;
    }
    GMLSwapCoordinatesEnum GetSwapCoordinates() const
    {
        return m_eSwapCoordinates;
    }
    bool GetSecondaryGeometryOption() const
    {
        return m_bGetSecondaryGeometryOption;
    }

    ReadMode GetReadMode() const
    {
        return eReadMode;
    }
    void SetStoredGMLFeature(GMLFeature *poStoredGMLFeatureIn)
    {
        poStoredGMLFeature = poStoredGMLFeatureIn;
    }
    GMLFeature *PeekStoredGMLFeature() const
    {
        return poStoredGMLFeature;
    }

    OGRGMLLayer *GetLastReadLayer() const
    {
        return poLastReadLayer;
    }
    void SetLastReadLayer(OGRGMLLayer *poLayer)
    {
        poLastReadLayer = poLayer;
    }

    const char *GetAppPrefix() const;
    bool RemoveAppPrefix() const;
    bool WriteFeatureBoundedBy() const;
    const char *GetSRSDimensionLoc() const;
    bool GMLFeatureCollection() const;

    virtual OGRLayer *ExecuteSQL(const char *pszSQLCommand,
                                 OGRGeometry *poSpatialFilter,
                                 const char *pszDialect) override;
    virtual void ReleaseResultSet(OGRLayer *poResultsSet) override;

    static bool CheckHeader(const char *pszStr);
};

#endif /* OGR_GML_H_INCLUDED */
