/*
 *      cook - file construction tool
 *      Copyright (C) 1998, 2001, 2006, 2007 Peter Miller;
 *      All rights reserved.
 *
 *      This program is free software; you can redistribute it and/or modify
 *      it under the terms of the GNU General Public License as published by
 *      the Free Software Foundation; either version 2 of the License, or
 *      (at your option) any later version.
 *
 *      This program is distributed in the hope that it will be useful,
 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *      GNU General Public License for more details.
 *
 *      You should have received a copy of the GNU General Public License
 *      along with this program; if not, write to the Free Software
 *      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 * MANIFEST: operating system start point, and command line argument parsing
 */

#include <common/ac/stdio.h>
#include <common/ac/stdlib.h>

#include <common/arglex.h>
#include <common/error_intl.h>
#include <common/help.h>
#include <common/progname.h>
#include <common/str.h>
#include <common/version.h>
#include <cook_bom/sniff.h>


enum
{
    arglex_token_directory,
    arglex_token_ignore,
    arglex_token_output,
    arglex_token_prefix,
    arglex_token_suffix
};

static arglex_table_ty argtab[] =
{
    { "-DIRectory", arglex_token_directory },
    { "-IGnore", arglex_token_ignore },
    { "-Output", arglex_token_output },
    { "-Prefix", arglex_token_prefix },
    { "-Suffix", arglex_token_suffix },
    { 0, 0 } /* end marker */
};


static void
usage(void)
{
    char            *progname;

    progname = progname_get();
    fprintf(stderr, "Usage: %s [ <option>... ] <dirname>\n", progname);
    fprintf(stderr, "       %s -Help\n", progname);
    exit(1);
}


int
main(int argc, char **argv)
{
    char            *infile;
    char            *outfile;

    arglex_init(argc, argv, argtab);
    str_initialize();
    switch (arglex())
    {
    case arglex_token_help:
        help((char *)0, usage);
        exit(0);

    case arglex_token_version:
        version();
        exit(0);

    default:
        break;
    }

    infile = 0;
    outfile = 0;
    while (arglex_token != arglex_token_eoln)
    {
        switch (arglex_token)
        {
        default:
            generic_argument(usage);
            continue;

        case arglex_token_directory:
            if (arglex() != arglex_token_string)
            {
                arg_needs_string(arglex_token_directory, usage);
                /* NOTREACHED */
            }
            sniff_directory(arglex_value.alv_string);
            break;

        case arglex_token_ignore:
            if (arglex() != arglex_token_string)
            {
                arg_needs_string(arglex_token_ignore, usage);
                /* NOTREACHED */
            }
            sniff_ignore(arglex_value.alv_string);
            break;

        case arglex_token_prefix:
            if (arglex() != arglex_token_string)
            {
                arg_needs_string(arglex_token_prefix, usage);
                /* NOTREACHED */
            }
            if (sniff_prefix(arglex_value.alv_string))
                arg_duplicate_cur(usage);
            break;

        case arglex_token_suffix:
            if (arglex() != arglex_token_string)
            {
                arg_needs_string(arglex_token_suffix, usage);
                /* NOTREACHED */
            }
            if (sniff_suffix(arglex_value.alv_string))
                arg_duplicate_cur(usage);
            break;

        case arglex_token_string:
            if (!infile)
                infile = arglex_value.alv_string;
            else if (!outfile)
                outfile = arglex_value.alv_string;
            else
            {
              too_many:
                error_intl(0, i18n("too many filenames specified"));
                usage();
            }
            break;

        case arglex_token_output:
            if (outfile)
                goto too_many;
            switch (arglex())
            {
            default:
                usage();

            case arglex_token_string:
                outfile = arglex_value.alv_string;
                break;

            case arglex_token_stdio:
                outfile = "";
                break;
            }
            break;

        case arglex_token_stdio:
            if (outfile)
                goto too_many;
            outfile = "";
            break;
        }
        arglex();
    }
    if (!infile || !*infile)
        infile = ".";
    if (outfile && !*outfile)
        outfile = 0;

    /*
     * read the directory and write the manifest
     */
    sniff(infile, outfile);
    exit(0);
    return 0;
}


#if 0
void bogus(void) { i18n("bogus for cook_bom"); }
#endif