/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include <vector>

#include "xp.h"
#include "logger.h"

extern Logger * logger;

DWORD GetPluginsDir(char * path, DWORD maxsize)
{
  if(!path)
    return 0;

  path[0] = '\0';

#ifdef XP_WIN

  DWORD res = GetModuleFileName(NULL, path, maxsize);
  if(res == 0)
    return 0;

  if(path[strlen(path) - 1] == '\\')
    path[lstrlen(path) - 1] = '\0';

  char *p = strrchr(path, '\\');

  if(p)
    *p = '\0';

  strcat(path, "\\plugins");

#endif

#ifdef XP_UNIX
  // Implement UNIX version
#endif

#ifdef XP_MAC
  // Implement Mac version
#endif

  res = strlen(path);
  return res;
}

XP_HLIB LoadRealPlugin(char * mimetype)
{
  if(!mimetype || !strlen(mimetype))
    return NULL;

#ifdef XP_WIN

  BOOL bDone = FALSE;
  WIN32_FIND_DATA ffdataStruct;

  char szPath[_MAX_PATH];
  char szFileName[_MAX_PATH];

  // DebugBreak();

  GetPluginsDir(szPath, _MAX_PATH);

  if(logger) {
      char msg[512];
      sprintf(msg, "LoadRealPlugin Path: %s\r\n", szPath);
      logger->logMessage(msg);
  }

  strcpy(szFileName, szPath);

  std::vector<std::string> directories;

  directories.push_back(szFileName);
  directories.push_back("C:\\Windows\\System32\\Macromed\\Flash");
  directories.push_back("C:\\Windows\\SysWOW64\\Macromed\\Flash");

  for (size_t i = 0; i < directories.size(); ++i) {
    std::string search_path = directories[i];
    search_path = search_path.append("\\np*.dll");
    HANDLE handle = FindFirstFile(search_path.c_str(), &ffdataStruct);
    if(handle == INVALID_HANDLE_VALUE) 
    {
      FindClose(handle);
      continue;
    }

    DWORD versize = 0L;
    DWORD zero = 0L;
    char * verbuf = NULL;

    do
    {
      std::string cur_file = directories[i];
      cur_file = cur_file.append("\\");
      cur_file = cur_file.append(ffdataStruct.cFileName);
      if(!(ffdataStruct. dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) &&
         strstr(cur_file.c_str(), "npspy.dll") == NULL)
      {
        versize = GetFileVersionInfoSize(cur_file.c_str(), &zero);
	      if (versize > 0)
		      verbuf = new char[versize];
        else 
          continue;

        if(!verbuf)
		      continue;

        GetFileVersionInfo(cur_file.c_str(), NULL, versize, verbuf);

        char *mimetypes = NULL;
        UINT len = 0;

        if(!VerQueryValue(verbuf, "\\StringFileInfo\\040904E4\\MIMEType", (void **)&mimetypes, &len)
           || !mimetypes || !len)
        {
          delete [] verbuf;
          continue;
        }

        // browse through a string of mimetypes
        mimetypes[len] = '\0';
        char * type = mimetypes;

        BOOL more = TRUE;
        while(more)
        {
          char * p = strchr(type, '|');
          if(p)
            *p = '\0';
          else
            more = FALSE;

          if(0 == _stricmp(mimetype, type))
          {
            // this is it!
            delete [] verbuf;
            FindClose(handle);
            HINSTANCE hLib = LoadLibrary(cur_file.c_str());
            return hLib;
          }

          type = p;
          type++;
        }

        delete [] verbuf;
      }

    } while(FindNextFile(handle, &ffdataStruct));

    FindClose(handle);
  }

#endif

#ifdef XP_UNIX
  // Implement UNIX version
#endif

#ifdef XP_MAC
  // Implement Mac version
#endif

  return NULL;
}

void UnloadRealPlugin(XP_HLIB hLib)
{
#ifdef XP_WIN
  if(!hLib)
    FreeLibrary(hLib);
#endif

#ifdef XP_UNIX
  // Implement UNIX version
#endif

#ifdef XP_MAC
  // Implement Mac version
#endif
}