// Copyright 2016 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

#include "xfa/fxfa/parser/xfa_object.h"

#include <memory>

#include "core/fxcrt/fx_ext.h"
#include "xfa/fxfa/parser/cxfa_document.h"
#include "xfa/fxfa/parser/cxfa_scriptcontext.h"

CXFA_NodeList::CXFA_NodeList(CXFA_Document* pDocument)
    : CXFA_Object(pDocument,
                  XFA_ObjectType::NodeList,
                  XFA_Element::NodeList,
                  CFX_WideStringC(L"nodeList")) {
  m_pDocument->GetScriptContext()->AddToCacheList(
      std::unique_ptr<CXFA_NodeList>(this));
}

CXFA_NodeList::~CXFA_NodeList() {}

CXFA_Node* CXFA_NodeList::NamedItem(const CFX_WideStringC& wsName) {
  uint32_t dwHashCode = FX_HashCode_GetW(wsName, false);
  int32_t iCount = GetLength();
  for (int32_t i = 0; i < iCount; i++) {
    CXFA_Node* ret = Item(i);
    if (dwHashCode == ret->GetNameHash())
      return ret;
  }
  return nullptr;
}

void CXFA_NodeList::Script_ListClass_Append(CFXJSE_Arguments* pArguments) {
  int32_t argc = pArguments->GetLength();
  if (argc == 1) {
    CXFA_Node* pNode = static_cast<CXFA_Node*>(pArguments->GetObject(0));
    if (pNode) {
      Append(pNode);
    } else {
      ThrowException(XFA_IDS_ARGUMENT_MISMATCH);
    }
  } else {
    ThrowException(XFA_IDS_INCORRECT_NUMBER_OF_METHOD, L"append");
  }
}

void CXFA_NodeList::Script_ListClass_Insert(CFXJSE_Arguments* pArguments) {
  int32_t argc = pArguments->GetLength();
  if (argc == 2) {
    CXFA_Node* pNewNode = static_cast<CXFA_Node*>(pArguments->GetObject(0));
    CXFA_Node* pBeforeNode = static_cast<CXFA_Node*>(pArguments->GetObject(1));
    if (pNewNode) {
      Insert(pNewNode, pBeforeNode);
    } else {
      ThrowException(XFA_IDS_ARGUMENT_MISMATCH);
    }
  } else {
    ThrowException(XFA_IDS_INCORRECT_NUMBER_OF_METHOD, L"insert");
  }
}

void CXFA_NodeList::Script_ListClass_Remove(CFXJSE_Arguments* pArguments) {
  int32_t argc = pArguments->GetLength();
  if (argc == 1) {
    CXFA_Node* pNode = static_cast<CXFA_Node*>(pArguments->GetObject(0));
    if (pNode) {
      Remove(pNode);
    } else {
      ThrowException(XFA_IDS_ARGUMENT_MISMATCH);
    }
  } else {
    ThrowException(XFA_IDS_INCORRECT_NUMBER_OF_METHOD, L"remove");
  }
}

void CXFA_NodeList::Script_ListClass_Item(CFXJSE_Arguments* pArguments) {
  int32_t argc = pArguments->GetLength();
  if (argc == 1) {
    int32_t iIndex = pArguments->GetInt32(0);
    if ((iIndex >= 0) && (iIndex + 1 <= GetLength())) {
      pArguments->GetReturnValue()->Assign(
          m_pDocument->GetScriptContext()->GetJSValueFromMap(Item(iIndex)));
    } else {
      ThrowException(XFA_IDS_INDEX_OUT_OF_BOUNDS);
    }
  } else {
    ThrowException(XFA_IDS_INCORRECT_NUMBER_OF_METHOD, L"item");
  }
}

void CXFA_NodeList::Script_TreelistClass_NamedItem(
    CFXJSE_Arguments* pArguments) {
  int32_t argc = pArguments->GetLength();
  if (argc == 1) {
    CFX_ByteString szName = pArguments->GetUTF8String(0);
    CXFA_Node* pNode =
        NamedItem(CFX_WideString::FromUTF8(szName.AsStringC()).AsStringC());
    if (!pNode) {
      return;
    }
    pArguments->GetReturnValue()->Assign(
        m_pDocument->GetScriptContext()->GetJSValueFromMap(pNode));
  } else {
    ThrowException(XFA_IDS_INCORRECT_NUMBER_OF_METHOD, L"namedItem");
  }
}

void CXFA_NodeList::Script_ListClass_Length(CFXJSE_Value* pValue,
                                            bool bSetting,
                                            XFA_ATTRIBUTE eAttribute) {
  if (!bSetting) {
    pValue->SetInteger(GetLength());
  } else {
    ThrowException(XFA_IDS_INVAlID_PROP_SET);
  }
}