/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/

#include "pdfioutdev_gpl.hxx"
//#include "SecurityHandler.h"
#ifdef WNT
# include <io.h>
# include <fcntl.h>  /*_O_BINARY*/
#endif

FILE* g_binary_out=stderr;

#ifndef SYSTEM_POPPLER
static char ownerPassword[33] = "\001";
static char userPassword[33]  = "\001";
static char outputFile[256]   = "\001";

static ArgDesc argDesc[] = {
  {(char*)"-f",          argString,      outputFile,     sizeof(outputFile),
   (char*)"output file for binary streams"},
  {(char*)"-opw",        argString,      ownerPassword,  sizeof(ownerPassword),
   (char*)"owner password (for encrypted files)"},
  {(char*)"-upw",        argString,      userPassword,   sizeof(userPassword),
   (char*)"user password (for encrypted files)"},
  {NULL, argString, NULL, 0, NULL }
};
#else
static const char *ownerPassword = "\001";
static const char *userPassword  = "\001";
static const char *outputFile   = "\001";
#endif

int main(int argc, char **argv)
{
#ifndef SYSTEM_POPPLER
    // parse args; initialize to defaults
    if( !parseArgs(argDesc, &argc, argv) )
        return 1;
#else
    int k = 0;
    while (k < argc)
    {
        if (!strcmp(argv[k], "-f"))
        {
            outputFile = argv[k+1];
            --argc;
            for (int j = k; j < argc; ++j)
                argv[j] = argv[j+1];
        }
        else if (!strcmp(argv[k], "-opw"))
        {
            ownerPassword = argv[k+1];
            --argc;
            for (int j = k; j < argc; ++j)
                argv[j] = argv[j+1];
        }
        else if (!strcmp(argv[k], "-upw"))
        {
            userPassword = argv[k+1];
            --argc;
            for (int j = k; j < argc; ++j)
                argv[j] = argv[j+1];
        }
	++k;
    }
#endif

    if( argc < 2 )
        return 1;

    // read config file
    globalParams = new GlobalParams(
#ifndef SYSTEM_POPPLER
        (char*)""
#endif
    );
    globalParams->setErrQuiet(gTrue);
#if !defined(SYSTEM_POPPLER) || defined(_MSC_VER)
    globalParams->setupBaseFonts(NULL);
#endif

    // try to read a possible open password form stdin
    char aPwBuf[129];
    aPwBuf[128] = 0;
    if( ! fgets( aPwBuf, sizeof(aPwBuf)-1, stdin ) )
        aPwBuf[0] = 0; // mark as empty
    else
    {
        for( unsigned int i = 0; i < sizeof(aPwBuf); i++ )
        {
            if( aPwBuf[i] == '\n' )
            {
                aPwBuf[i] = 0;
                break;
            }
        }
    }
        
    // PDFDoc takes over ownership for all strings below
    GooString* pFileName    = new GooString(argv[1]);
    GooString* pTempErrFileName     = new GooString("_err.pdf");
    GooString* pTempErrFileNamePath = new GooString(argv[0]);

    GooString* pErrFileName = new GooString(pTempErrFileNamePath,pTempErrFileName);
   
        
    // check for password string(s)
    GooString* pOwnerPasswordStr( aPwBuf[0] != 0
                                 ? new GooString( aPwBuf )
                                 : (ownerPassword[0] != '\001'
                                    ? new GooString(ownerPassword)
                                    : (GooString *)NULL ) );
    GooString* pUserPasswordStr(  userPassword[0] != '\001'
                                  ? new GooString(userPassword)
                                  : (GooString *)NULL );
    if( outputFile[0] != '\001' )
        g_binary_out = fopen(outputFile,"wb");
    
#ifdef WNT
    // Win actually modifies output for O_TEXT file mode, so need to
    // revert to binary here
    _setmode( _fileno( g_binary_out ), _O_BINARY );
#endif

    PDFDoc aDoc( pFileName,
                 pOwnerPasswordStr,
                 pUserPasswordStr );
  
    PDFDoc aErrDoc( pErrFileName,
                 pOwnerPasswordStr,
                 pUserPasswordStr );
   
    
   // Check various permissions.
   if ( !aDoc.isOk()||
        !aDoc.okToPrint() ||    
        !aDoc.okToChange()||
        !aDoc.okToCopy()||
        !aDoc.okToAddNotes() )
   {
        pdfi::PDFOutDev* pOutDev( new pdfi::PDFOutDev(&aErrDoc) );

        const int nPages = aErrDoc.isOk() ? aErrDoc.getNumPages() : 0;

        // tell receiver early - needed for proper progress calculation
        pOutDev->setPageNum( nPages );

        // virtual resolution of the PDF OutputDev in dpi
        static const int PDFI_OUTDEV_RESOLUTION=7200;

       // do the conversion
       for( int i=1; i<=nPages; ++i )
       {
          aErrDoc.displayPage( pOutDev, 
                            i, 
                            PDFI_OUTDEV_RESOLUTION, 
                            PDFI_OUTDEV_RESOLUTION,
                            0, gTrue, gTrue, gTrue );
          aErrDoc.processLinks( pOutDev, i );
       }
   }
   else
   {  
      pdfi::PDFOutDev* pOutDev( new pdfi::PDFOutDev(&aDoc) );

      // tell receiver early - needed for proper progress calculation
      pOutDev->setPageNum( aDoc.getNumPages() );

      // virtual resolution of the PDF OutputDev in dpi
      static const int PDFI_OUTDEV_RESOLUTION=7200;

      // do the conversion
      const int nPages = aDoc.getNumPages();
      for( int i=1; i<=nPages; ++i )
      {
        aDoc.displayPage( pOutDev, 
                          i, 
                          PDFI_OUTDEV_RESOLUTION, 
                          PDFI_OUTDEV_RESOLUTION,
                          0, gTrue, gTrue, gTrue );
        aDoc.processLinks( pOutDev, i );
      }
   }
    return 0;
}