// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

#ifndef CORE_INCLUDE_FPDFAPI_FPDF_SERIAL_H_
#define CORE_INCLUDE_FPDFAPI_FPDF_SERIAL_H_

#include "fpdf_page.h"
#include "fpdf_pageobj.h"

class CPDF_ObjectStream;
class CPDF_XRefStream;
CFX_ByteTextBuf& operator<<(CFX_ByteTextBuf& buf, const CPDF_Object* pObj);
class CPDF_ObjArchiveSaver : public CFX_ArchiveSaver {
 public:
  friend CPDF_ObjArchiveSaver& operator<<(CPDF_ObjArchiveSaver& ar,
                                          const CPDF_Object* pObj);

 protected:
  CFX_MapPtrToPtr m_ObjectMap;
};
class CPDF_ObjArchiveLoader : public CFX_ArchiveLoader {
 public:
  CPDF_ObjArchiveLoader(const uint8_t* pData, FX_DWORD dwSize)
      : CFX_ArchiveLoader(pData, dwSize), m_IndirectObjects(NULL) {}

  friend CPDF_ObjArchiveLoader& operator>>(CPDF_ObjArchiveLoader& ar,
                                           CPDF_Object*& pObj);

 protected:
  CPDF_IndirectObjects m_IndirectObjects;
};
class CPDF_PageArchiveSaver : public CPDF_ObjArchiveSaver {
 public:
  CPDF_PageArchiveSaver(CPDF_PageObjects* pPageObjs);

  friend CPDF_PageArchiveSaver& operator<<(CPDF_PageArchiveSaver& ar,
                                           CPDF_PageObject* pObj);

  friend CPDF_PageArchiveSaver& operator<<(CPDF_PageArchiveSaver& ar,
                                           CPDF_ClipPath clip_path);

  friend CPDF_PageArchiveSaver& operator<<(CPDF_PageArchiveSaver& ar,
                                           CPDF_GraphState graph_state);

  friend CPDF_PageArchiveSaver& operator<<(CPDF_PageArchiveSaver& ar,
                                           CPDF_TextState text_state);

  friend CPDF_PageArchiveSaver& operator<<(CPDF_PageArchiveSaver& ar,
                                           CPDF_ColorState color_state);

  friend CPDF_PageArchiveSaver& operator<<(CPDF_PageArchiveSaver& ar,
                                           CPDF_GeneralState general_state);

 protected:
  CPDF_ClipPath m_LastClipPath;

  CPDF_GraphState m_LastGraphState;

  CPDF_ColorState m_LastColorState;

  CPDF_TextState m_LastTextState;

  CPDF_GeneralState m_LastGeneralState;
};
class CPDF_PageArchiveLoader : public CPDF_ObjArchiveLoader {
 public:
  CPDF_PageArchiveLoader(CPDF_PageObjects* pPageObjs,
                         const uint8_t* pData,
                         FX_DWORD dwSize);

  friend CPDF_PageArchiveLoader& operator>>(CPDF_PageArchiveLoader& ar,
                                            CPDF_PageObject*& pObj);

  friend CPDF_PageArchiveLoader& operator>>(CPDF_PageArchiveLoader& ar,
                                            CPDF_ClipPath& clip_path);

  friend CPDF_PageArchiveLoader& operator>>(CPDF_PageArchiveLoader& ar,
                                            CPDF_GraphState& graph_state);

  friend CPDF_PageArchiveLoader& operator>>(CPDF_PageArchiveLoader& ar,
                                            CPDF_TextState& text_state);

  friend CPDF_PageArchiveLoader& operator>>(CPDF_PageArchiveLoader& ar,
                                            CPDF_ColorState& color_state);

  friend CPDF_PageArchiveLoader& operator>>(CPDF_PageArchiveLoader& ar,
                                            CPDF_GeneralState& general_state);

 protected:
  void PostProcColor(CPDF_Color& color);

  CPDF_Object* AddResource(CPDF_Object* pSrcObj, const FX_CHAR* type);

  CPDF_ClipPath m_LastClipPath;

  CPDF_GraphState m_LastGraphState;

  CPDF_ColorState m_LastColorState;

  CPDF_TextState m_LastTextState;

  CPDF_GeneralState m_LastGeneralState;

  CFX_MapPtrToPtr m_ObjectMap;
};
#define FPDFCREATE_INCREMENTAL 1
#define FPDFCREATE_NO_ORIGINAL 2
#define FPDFCREATE_PROGRESSIVE 4
#define FPDFCREATE_OBJECTSTREAM 8

class CPDF_Creator {
 public:
  CPDF_Creator(CPDF_Document* pDoc);
  ~CPDF_Creator();

  void RemoveSecurity();
  FX_BOOL Create(IFX_StreamWrite* pFile, FX_DWORD flags = 0);
  int32_t Continue(IFX_Pause* pPause = NULL);
  FX_BOOL SetFileVersion(int32_t fileVersion = 17);

 protected:
  CPDF_Document* m_pDocument;

  CPDF_Parser* m_pParser;

  FX_BOOL m_bCompress;

  FX_BOOL m_bSecurityChanged;

  CPDF_Dictionary* m_pEncryptDict;
  FX_DWORD m_dwEnryptObjNum;
  FX_BOOL m_bEncryptCloned;

  FX_BOOL m_bStandardSecurity;

  CPDF_CryptoHandler* m_pCryptoHandler;
  FX_BOOL m_bNewCrypto;

  FX_BOOL m_bEncryptMetadata;

  CPDF_Object* m_pMetadata;

  CPDF_XRefStream* m_pXRefStream;

  int32_t m_ObjectStreamSize;

  FX_DWORD m_dwLastObjNum;
  FX_BOOL Create(FX_DWORD flags);
  void ResetStandardSecurity();
  void Clear();
  int32_t WriteDoc_Stage1(IFX_Pause* pPause);
  int32_t WriteDoc_Stage2(IFX_Pause* pPause);
  int32_t WriteDoc_Stage3(IFX_Pause* pPause);
  int32_t WriteDoc_Stage4(IFX_Pause* pPause);

  CFX_FileBufferArchive m_File;

  FX_FILESIZE m_Offset;
  void InitOldObjNumOffsets();
  void InitNewObjNumOffsets();
  void AppendNewObjNum(FX_DWORD objbum);
  int32_t WriteOldIndirectObject(FX_DWORD objnum);
  int32_t WriteOldObjs(IFX_Pause* pPause);
  int32_t WriteNewObjs(FX_BOOL bIncremental, IFX_Pause* pPause);
  int32_t WriteIndirectObj(const CPDF_Object* pObj);
  int32_t WriteDirectObj(FX_DWORD objnum,
                         const CPDF_Object* pObj,
                         FX_BOOL bEncrypt = TRUE);
  int32_t WriteIndirectObjectToStream(const CPDF_Object* pObj);
  int32_t WriteIndirectObj(FX_DWORD objnum, const CPDF_Object* pObj);
  int32_t WriteIndirectObjectToStream(FX_DWORD objnum,
                                      const uint8_t* pBuffer,
                                      FX_DWORD dwSize);
  int32_t AppendObjectNumberToXRef(FX_DWORD objnum);
  void InitID(FX_BOOL bDefault = TRUE);
  int32_t WriteStream(const CPDF_Object* pStream,
                      FX_DWORD objnum,
                      CPDF_CryptoHandler* pCrypto);

  int32_t m_iStage;
  FX_DWORD m_dwFlags;
  FX_POSITION m_Pos;
  FX_FILESIZE m_XrefStart;

  CFX_FileSizeListArray m_ObjectOffset;

  CFX_DWordListArray m_ObjectSize;
  CFX_DWordArray m_NewObjNumArray;

  CPDF_Array* m_pIDArray;

  int32_t m_FileVersion;
  friend class CPDF_ObjectStream;
  friend class CPDF_XRefStream;
};

#endif  // CORE_INCLUDE_FPDFAPI_FPDF_SERIAL_H_