#include "config.h"

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <getopt.h>

#include "oggz-chop.h"

#include "oggz_tools.h"

#include "timespec.h"

static char * progname;

static void

usage (char * progname)

{

  printf ("Usage: %s [options] filename\n", progname);

  printf ("Extract the part of an Ogg file between given start and/or end times.\n");

  printf ("\nOutput options\n");

  printf ("  -o filename, --output filename\n");

  printf ("                         Specify output filename\n");

  printf ("  -s start_time, --start start_time\n");

  printf ("                         Specify start time\n");

  printf ("  -e end_time, --end end_time\n");

  printf ("                         Specify end time\n");

  printf ("  -k , --no-skeleton     Do NOT include a Skeleton bitstream in the output");

  printf ("\nMiscellaneous options\n");

  printf ("  -n, --dry-run          Don't actually write the output\n");

  printf ("  -h, --help             Display this help and exit\n");

  printf ("  -v, --version          Output version information and exit\n");

  printf ("  -V, --verbose          Verbose operation, prints to stderr\n");

  printf ("\n");

  printf ("Please report bugs to <ogg-dev@xiph.org>\n");

}

static int

version (FILE *stream)

{

    return fprintf (stream, "%s version " VERSION "\n", progname);

}

int

cmd_main (OCState * state, int argc, char * argv[])

{

  int show_version = 0;

  int show_help = 0;

  int i;

  char * optstring = "s:e:o:knhvV";

#ifdef HAVE_GETOPT_LONG

  static struct option long_options[] = {

    {"start",    required_argument, 0, 's'},

    {"end",      required_argument, 0, 'e'},

    {"output",   required_argument, 0, 'o'},

    {"no-skeleton", no_argument, 0, 'k'},

    {"dry-run",  no_argument, 0, 'n'},

    {"help",     no_argument, 0, 'h'},

    {"version",  no_argument, 0, 'v'},

    {"verbose",  no_argument, 0, 'V'},

    {0,0,0,0}

  };

#endif

  progname = argv[0];

  if (argc < 2) {

    usage (progname);

    return (1);

  }

  if (!strncmp (argv[1], "-?", 2)) {

#ifdef HAVE_GETOPT_LONG

    ot_print_options (long_options, optstring);

#else

    ot_print_short_options (optstring);

#endif

    exit (0);

  }

  memset (state, 0, sizeof(*state));

  state->end = -1.0;

  state->do_skeleton = 1;

  while (1) {

#ifdef HAVE_GETOPT_LONG

    i = getopt_long(argc, argv, optstring, long_options, NULL);

#else

    i = getopt (argc, argv, optstring);

#endif

    if (i == -1) break;

    if (i == ':') {

      usage (progname);

      goto exit_err;

    }

    switch (i) {

    case 's': /* start */

      state->start = parse_timespec (optarg);

      break;

    case 'e': /* end */

      state->end = parse_timespec (optarg);

      break;

    case 'k': /* no-skeleton */

      state->do_skeleton = 0;

      break;

    case 'n': /* dry-run */

      state->dry_run = 1;

      break;

    case 'h': /* help */

      show_help = 1;

      break;

    case 'v': /* version */

      show_version = 1;

      break;

    case 'V': /* verbose */

      state->verbose = 1;

      break;

    case 'o': /* output */

      state->outfilename = optarg;

      break;

    default:

      break;

    }

  }

  if (show_version) {

    version (stdout);

  } else if (state->verbose) {

    version (stderr);

  }

  if (show_help) {

    usage (progname);

  }

  if (show_version || show_help) {

    goto exit_ok;

  }

  if (optind >= argc) {

    usage (progname);

    goto exit_err;

  }

  state->infilename = argv[optind++];

  return chop (state);

exit_ok:

  return 0;

exit_err:

  return 1;

}