// 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

#include "xfa/fgas/localization/fgas_localemgr.h"

#include "core/fxcrt/include/fx_xml.h"

IFX_LocaleMgr* FX_LocaleMgr_Create(const FX_WCHAR* pszLocalPath,
                                   uint16_t wDefaultLCID) {
  void* pPathHandle = FX_OpenFolder(pszLocalPath);
  if (!pPathHandle) {
    return NULL;
  }
  CFX_LocaleMgr* pLocaleMgr = new CFX_LocaleMgr(wDefaultLCID);
  CFX_WideString wsFileName;
  FX_BOOL bFolder = FALSE;
  while (FX_GetNextFile(pPathHandle, wsFileName, bFolder)) {
    if (!bFolder) {
      if (wsFileName.GetLength() < 4) {
        continue;
      }
      CFX_WideString wsExt = wsFileName.Right(4);
      wsExt.MakeLower();
      if (wsExt != L".xml") {
        continue;
      }
      CFX_WideString wsFullPath(pszLocalPath);
      wsFullPath += L"\\" + wsFileName;
      IFX_FileRead* pRead = FX_CreateFileRead(wsFullPath.c_str());
      if (!pRead) {
        continue;
      }
      CXML_Element* pXmlLocale = CXML_Element::Parse(pRead);
      pRead->Release();
      CFX_ByteString bssp = pXmlLocale->GetNamespace();
      if (bssp == "http://www.foxitsoftware.com/localization") {
        CFX_WideString wsLCID = pXmlLocale->GetAttrValue("", "lcid");
        wchar_t* pEnd = NULL;
        uint32_t dwLCID = wcstol(wsLCID.c_str(), &pEnd, 16);
        if (pLocaleMgr->m_lcid2xml.GetValueAt((void*)(uintptr_t)dwLCID)) {
          delete pXmlLocale;
        } else {
          pLocaleMgr->m_lcid2xml.SetAt((void*)(uintptr_t)dwLCID, pXmlLocale);
        }
      } else {
        delete pXmlLocale;
      }
    }
  }
  FX_CloseFolder(pPathHandle);
  return pLocaleMgr;
}
CFX_LocaleMgr::CFX_LocaleMgr(uint16_t wDefLCID) : m_wDefLCID(wDefLCID) {}
CFX_LocaleMgr::~CFX_LocaleMgr() {
  FX_POSITION ps = m_lcid2locale.GetStartPosition();
  while (ps) {
    void* plcid;
    IFX_Locale* pLocale = NULL;
    m_lcid2locale.GetNextAssoc(ps, plcid, (void*&)pLocale);
    pLocale->Release();
  }
  m_lcid2locale.RemoveAll();
  ps = m_lcid2xml.GetStartPosition();
  while (ps) {
    void* plcid;
    CXML_Element* pxml = NULL;
    m_lcid2xml.GetNextAssoc(ps, plcid, (void*&)pxml);
    delete pxml;
  }
  m_lcid2xml.RemoveAll();
}
uint16_t CFX_LocaleMgr::GetDefLocaleID() {
  return m_wDefLCID;
}
IFX_Locale* CFX_LocaleMgr::GetDefLocale() {
  return GetLocale(m_wDefLCID);
}
IFX_Locale* CFX_LocaleMgr::GetLocale(uint16_t lcid) {
  IFX_Locale* pLocale =
      (IFX_Locale*)m_lcid2locale.GetValueAt((void*)(uintptr_t)lcid);
  if (!pLocale) {
    CXML_Element* pxml =
        (CXML_Element*)m_lcid2xml.GetValueAt((void*)(uintptr_t)lcid);
    if (pxml) {
      pLocale = IFX_Locale::Create(pxml);
      m_lcid2locale.SetAt((void*)(uintptr_t)lcid, pLocale);
    }
  }
  return pLocale;
}
IFX_Locale* CFX_LocaleMgr::GetLocaleByName(
    const CFX_WideStringC& wsLocaleName) {
  return NULL;
}