/*      $OpenBSD: initdeck.c,v 1.17 2016/01/08 18:20:33 mestre Exp $    */
/*      $NetBSD: initdeck.c,v 1.3 1995/03/23 08:34:43 cgd Exp $ */

/*
 * Copyright (c) 1980, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#include "deck.h"

/*
 *      This program initializes the card files for monopoly.
 * It reads in a data file with Com. Chest cards, followed by
 * the Chance card.  The two are separated by a line of "%-".
 * All other cards are separated by lines of "%%".  In the front
 * of the file is the data for the decks in the same order.
 * This includes the seek pointer for the start of each card.
 * All cards start with their execution code, followed by the
 * string to print, terminated with a null byte.
 */

#define TRUE    1
#define FALSE   0

#define bool    int8_t

char    *infile         = "cards.inp",          /* input file           */
        *outfile        = "cards.pck";          /* "packed" file        */

DECK    deck[2];

FILE    *inf, *outf;

static void     getargs(int, char *[]);
static void     count(void);
static void     putem(void);

int
main(int ac, char *av[])
{
        int n;

        if (pledge("stdio rpath wpath cpath", NULL) == -1)
                err(1, "pledge");

        getargs(ac, av);
        if ((inf = fopen(infile, "r")) == NULL)
                err(1, "%s", infile);
        count();
        /*
         * allocate space for pointers.
         */
        if ((CC_D.offsets = calloc(CC_D.num_cards + 1,
                        sizeof (int32_t))) == NULL ||
            (CH_D.offsets = calloc(CH_D.num_cards + 1,
                        sizeof (int32_t))) == NULL)
                err(1, NULL);
        fseek(inf, 0L, SEEK_SET);
        if ((outf = fopen(outfile, "w")) == NULL)
                err(1, "%s", outfile);

        if (pledge("stdio", NULL) == -1)
                err(1, "pledge");

        fwrite(&deck[0].num_cards, sizeof(deck[0].num_cards), 1, outf);
        fwrite(&deck[0].top_card, sizeof(deck[0].top_card), 1, outf);
        fwrite(&deck[0].gojf_used, sizeof(deck[0].gojf_used), 1, outf);

        fwrite(&deck[0].num_cards, sizeof(deck[0].num_cards), 1, outf);
        fwrite(&deck[0].top_card, sizeof(deck[0].top_card), 1, outf);
        fwrite(&deck[0].gojf_used, sizeof(deck[0].gojf_used), 1, outf);

        fwrite(CC_D.offsets, sizeof(CC_D.offsets[0]), CC_D.num_cards, outf);
        fwrite(CH_D.offsets, sizeof(CH_D.offsets[0]), CH_D.num_cards, outf);
        putem();

        fclose(inf);
        fseek(outf, 0L, SEEK_SET);

        deck[0].num_cards = htons(deck[0].num_cards);
        fwrite(&deck[0].num_cards, sizeof(deck[0].num_cards), 1, outf);
        deck[0].top_card = htons(deck[0].top_card);
        fwrite(&deck[0].top_card, sizeof(deck[0].top_card), 1, outf);
        fwrite(&deck[0].gojf_used, sizeof(deck[0].gojf_used), 1, outf);
        deck[0].num_cards = ntohs(deck[0].num_cards);

        deck[1].num_cards = htons(deck[1].num_cards);
        fwrite(&deck[1].num_cards, sizeof(deck[1].num_cards), 1, outf);
        deck[1].top_card = htons(deck[1].top_card);
        fwrite(&deck[1].top_card, sizeof(deck[1].top_card), 1, outf);
        fwrite(&deck[1].gojf_used, sizeof(deck[1].gojf_used), 1, outf);
        deck[1].num_cards = ntohs(deck[1].num_cards);

        for (n = 0 ; n < CC_D.num_cards ; n++) {
                CC_D.offsets[n] = htonl(CC_D.offsets[n]);
                fwrite(&CC_D.offsets[n], sizeof(CC_D.offsets[n]), 1, outf);
        }
        for (n = 0 ; n < CH_D.num_cards ; n++) {
                CH_D.offsets[n] = htonl(CH_D.offsets[n]);
                fwrite(&CH_D.offsets[n], sizeof(CH_D.offsets[n]), 1, outf);
        }

        fclose(outf);
        printf("There were %d com. chest and %d chance cards\n", CC_D.num_cards,
            CH_D.num_cards);
        return 0;
}

static void
getargs(int ac, char *av[])
{
        if (ac > 1)
                infile = av[1];
        if (ac > 2)
                outfile = av[2];
}

/*
 * count the cards
 */
static void
count(void)
{
        bool    newline;
        DECK    *in_deck;
        int     c;

        newline = TRUE;
        in_deck = &CC_D;
        while ((c=getc(inf)) != EOF)
                if (newline && c == '%') {
                        newline = FALSE;
                        in_deck->num_cards++;
                        if (getc(inf) == '-')
                                in_deck = &CH_D;
                }
                else
                        newline = (c == '\n');
        in_deck->num_cards++;
}
/*
 *      put strings in the file
 */
static void
putem(void)
{
        bool    newline;
        DECK    *in_deck;
        int     c;
        int16_t num;

        in_deck = &CC_D;
        CC_D.num_cards = 1;
        CH_D.num_cards = 0;
        CC_D.offsets[0] = ftell(outf);
        putc(getc(inf), outf);
        putc(getc(inf), outf);
        for (num = 0; (c=getc(inf)) != '\n'; )
                num = num * 10 + (c - '0');
        num = htons(num);
        fwrite(&num, sizeof(num), 1, outf);
        newline = FALSE;
        while ((c=getc(inf)) != EOF)
                if (newline && c == '%') {
                        putc('\0', outf);
                        newline = FALSE;
                        if (getc(inf) == '-')
                                in_deck = &CH_D;
                        while (getc(inf) != '\n')
                                continue;
                        in_deck->offsets[in_deck->num_cards++] = ftell(outf);
                        if ((c=getc(inf)) == EOF)
                                break;
                        putc(c, outf);
                        putc(c = getc(inf), outf);
                        for (num = 0; (c=getc(inf)) != EOF && c != '\n'; )
                                num = num * 10 + (c - '0');
                        num = htons(num);
                        fwrite(&num, sizeof(num), 1, outf);
                }
                else {
                        putc(c, outf);
                        newline = (c == '\n');
                }
        putc('\0', outf);
}