// Copyright (c) 2022 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#ifndef _DEGLTF_ConfigurationNode_HeaderFile
#define _DEGLTF_ConfigurationNode_HeaderFile

#include <DE_ConfigurationNode.hxx>
#include <RWGltf_WriterTrsfFormat.hxx>
#include <RWMesh_CoordinateSystem.hxx>
#include <RWMesh_NameFormat.hxx>

//! The purpose of this class is to configure the transfer process for glTF format
//! Stores the necessary settings for DEGLTF_Provider.
//! Configures and creates special provider to transfer glTF files.
//!
//! Nodes grouped by Vendor name and Format type.
//! The Vendor name is "OCC"
//! The Format type is "GLTF"
//! The supported CAD extensions are ".gltf", ".glb"
//! The import process is supported.
//! The export process is supported.
class DEGLTF_ConfigurationNode : public DE_ConfigurationNode
{
  DEFINE_STANDARD_RTTIEXT(DEGLTF_ConfigurationNode, DE_ConfigurationNode)
public:
  //! Initializes all field by default
  Standard_EXPORT DEGLTF_ConfigurationNode();

  //! Copies values of all fields
  //! @param[in] theNode object to copy
  Standard_EXPORT DEGLTF_ConfigurationNode(const occ::handle<DEGLTF_ConfigurationNode>& theNode);

  //! Updates values according the resource
  //! @param[in] theResource input resource to use
  //! @return true if theResource loading has ended correctly
  Standard_EXPORT bool Load(const occ::handle<DE_ConfigurationContext>& theResource) override;

  //! Writes configuration to the string
  //! @return result resource string
  Standard_EXPORT TCollection_AsciiString Save() const override;

  //! Copies values of all fields
  //! @return new object with the same field values
  Standard_EXPORT occ::handle<DE_ConfigurationNode> Copy() const override;

  //! Creates new provider for the own format
  //! @return new created provider
  Standard_EXPORT occ::handle<DE_Provider> BuildProvider() override;

public:
  //! Checks the import supporting
  //! @return true if import is supported
  Standard_EXPORT bool IsImportSupported() const override;

  //! Checks the export supporting
  //! @return true if export is supported
  Standard_EXPORT bool IsExportSupported() const override;

  //! Gets CAD format name of associated provider
  //! @return provider CAD format
  Standard_EXPORT TCollection_AsciiString GetFormat() const override;

  //! Gets provider's vendor name of associated provider
  //! @return provider's vendor name
  Standard_EXPORT TCollection_AsciiString GetVendor() const override;

  //! Gets list of supported file extensions
  //! @return list of extensions
  Standard_EXPORT NCollection_List<TCollection_AsciiString> GetExtensions() const override;

public:
  struct RWGltf_InternalSection
  {
    // Common
    // clang-format off
    double FileLengthUnit = 1.; //!< File length units to convert from while reading the file, defined as scale factor for m (meters)
    RWMesh_CoordinateSystem SystemCS = RWMesh_CoordinateSystem_Zup; //!< System origin coordinate system to perform conversion into during read
    RWMesh_CoordinateSystem FileCS = RWMesh_CoordinateSystem_Yup; //!< File origin coordinate system to perform conversion during read
    // Reading
    bool ReadSinglePrecision = true; //!< Flag for reading vertex data with single or double floating point precision
    bool ReadCreateShapes = false;  //!< Flag for create a single triangulation
    TCollection_AsciiString ReadRootPrefix; //!< Root folder for generating root labels names
    bool ReadFillDoc = true; //!< Flag for fill document from shape sequence
    bool ReadFillIncomplete = true; //!< Flag for fill the document with partially retrieved data even if reader has failed with error
    int ReadMemoryLimitMiB = -1; //!< Memory usage limit
    bool ReadParallel = false; //!< Flag to use multithreading
    bool ReadSkipEmptyNodes = true; //!< Flag to ignore nodes without Geometry
    bool ReadLoadAllScenes = false; //!< Flag to load all scenes in the document
    bool ReadUseMeshNameAsFallback = true; //!< Flag to use Mesh name in case if Node name is empty
    bool ReadSkipLateDataLoading = false; //!< Flag to skip triangulation loading
    bool ReadKeepLateData = true;//!< Flag to keep information about deferred storage to load/unload triangulation later
    bool ReadPrintDebugMessages = false; //!< Flag to print additional debug information
    bool ReadApplyScale = true; //!< Flag to apply non-uniform scale factor to the triangulations (modify nodes coordinates)
    // Writing
    TCollection_AsciiString WriteComment; //!< Export special comment
    TCollection_AsciiString WriteAuthor; //!< Author of exported file name
    RWGltf_WriterTrsfFormat WriteTrsfFormat = RWGltf_WriterTrsfFormat_Compact; //!< Transformation format to write into glTF file
    RWMesh_NameFormat WriteNodeNameFormat = RWMesh_NameFormat_InstanceOrProduct; //!< Name format for exporting Nodes
    RWMesh_NameFormat WriteMeshNameFormat = RWMesh_NameFormat_Product; //!< Name format for exporting Meshes
    bool WriteForcedUVExport = false; //!< Export UV coordinates even if there are no mapped texture
    bool WriteEmbedTexturesInGlb = true; //!< Flag to write image textures into GLB file
    bool WriteMergeFaces = false; //!< Flag to merge faces within a single part
    bool WriteSplitIndices16 = false; //!< Flag to prefer keeping 16-bit indexes while merging face
    // clang-format on
  } InternalParameters;
};

#endif // _DEGLTF_ConfigurationNode_HeaderFile
