#include "config.h"
#include <poppler-config.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include "parseargs.h"
#include "goo/GooString.h"
#include "PDFDoc.h"

static int firstPage = 0;
static int lastPage = 0;
static GBool printVersion = gFalse;
static GBool printHelp = gFalse;

static const ArgDesc argDesc[] = {
  {"-f",       argInt,      &firstPage,     0,
   "first page to extract"},
  {"-l",       argInt,      &lastPage,      0,
   "last page to extract"},
  {"-v",       argFlag,     &printVersion,  0,
   "print copyright and version info"},
  {"-h",       argFlag,     &printHelp,     0,
   "print usage information"},
  {"-help",    argFlag,     &printHelp,     0,
   "print usage information"},
  {"--help",   argFlag,     &printHelp,     0,
   "print usage information"},
  {"-?",       argFlag,     &printHelp,     0,
   "print usage information"},
  {NULL}
};

bool ExtractPages(const char * srcFileName, const char *destFileName) {
	char pathName[1024];

	GooString *gfileName = new GooString(srcFileName);
	PDFDoc *doc = new PDFDoc(gfileName, NULL, NULL, NULL);

	if (firstPage == 0 && lastPage == 0) {
		firstPage = 1;
		lastPage = doc->getNumPages();
	}
	if (lastPage == 0)
		lastPage = firstPage;
	if (firstPage == 0)
		firstPage = 1;
	for (int pageNo = firstPage; pageNo <= lastPage; pageNo++) {
		sprintf(pathName, destFileName, pageNo);
		if (!doc->ExtractPage(pathName, pageNo))
			return false;
	}
	return true;
}

int main(int argc, char *argv[]) {
  Object info;
  GBool ok;
  int exitCode;

  exitCode = 99;

  // parse args
  ok = parseArgs(argDesc, &argc, argv);
  if (!ok || argc != 3 || printVersion || printHelp) {
    fprintf(stderr, "pdfextract version %s\n", PACKAGE_VERSION);
    fprintf(stderr, "%s\n", popplerCopyright);
    fprintf(stderr, "%s\n", xpdfCopyright);
    if (!printVersion) {
      printUsage("pdfextract", "<PDF-sourcefile> <PDF-pattern-destfile>", argDesc);
    }
    if (printVersion || printHelp)
      exitCode = 0;
    goto err0;
  }
  ExtractPages(argv[1], argv[2]);

 err0:

  return exitCode;
}