// 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 XFA_FXFA_PARSER_CXFA_NODEHELPER_H_
#define XFA_FXFA_PARSER_CXFA_NODEHELPER_H_

#include <vector>

#include "core/fxcrt/fx_string.h"
#include "xfa/fxfa/fxfa_basic.h"
#include "xfa/fxfa/parser/xfa_resolvenode_rs.h"

class CFXJSE_Engine;
class CXFA_Node;

enum XFA_LOGIC_TYPE {
  XFA_LOGIC_NoTransparent,
  XFA_LOGIC_Transparent,
};

class CXFA_NodeHelper {
 public:
  CXFA_NodeHelper();
  ~CXFA_NodeHelper();

  CXFA_Node* GetOneChildNamed(CXFA_Node* parent, WideStringView wsName);
  CXFA_Node* GetOneChildOfClass(CXFA_Node* parent, WideStringView wsClass);

  CXFA_Node* GetParent(CXFA_Node* pNode, XFA_LOGIC_TYPE eLogicType);
  int32_t CountSiblings(CXFA_Node* pNode,
                        XFA_LOGIC_TYPE eLogicType,
                        std::vector<CXFA_Node*>* pSiblings,
                        bool bIsClassName);
  int32_t GetIndex(CXFA_Node* pNode,
                   XFA_LOGIC_TYPE eLogicType,
                   bool bIsProperty,
                   bool bIsClassIndex);
  WideString GetNameExpression(CXFA_Node* refNode, bool bIsAllPath);
  bool NodeIsTransparent(CXFA_Node* refNode);
  bool CreateNode(const WideString& wsName,
                  const WideString& wsCondition,
                  bool bLastNode,
                  CFXJSE_Engine* pScriptContext);
  bool CreateNodeForCondition(const WideString& wsCondition);
  void SetCreateNodeType(CXFA_Node* refNode);
  bool NodeIsProperty(CXFA_Node* refNode);

  XFA_Element m_eLastCreateType = XFA_Element::DataValue;
  XFA_ResolveNode_RSType m_iCreateFlag = XFA_ResolveNode_RSType_CreateNodeOne;
  int32_t m_iCreateCount = 0;
  int32_t m_iCurAllStart = -1;
  UnownedPtr<CXFA_Node> m_pCreateParent;
  UnownedPtr<CXFA_Node> m_pAllStartParent;

 private:
  CXFA_Node* FindFirstSiblingNamed(CXFA_Node* parent, uint32_t dNameHash);
  CXFA_Node* FindFirstSiblingNamedInList(CXFA_Node* parent,
                                         uint32_t dwNameHash,
                                         uint32_t dwFilter);
  CXFA_Node* FindFirstSiblingOfClass(CXFA_Node* parent, XFA_Element element);
  CXFA_Node* FindFirstSiblingOfClassInList(CXFA_Node* parent,
                                           XFA_Element element,
                                           uint32_t dwFilter);
  int32_t TraverseSiblings(CXFA_Node* parent,
                           uint32_t dNameHash,
                           std::vector<CXFA_Node*>* pSiblings,
                           XFA_LOGIC_TYPE eLogicType,
                           bool bIsClassName,
                           bool bIsFindProperty);
};

#endif  // XFA_FXFA_PARSER_CXFA_NODEHELPER_H_