/*      $OpenBSD: teach.c,v 1.20 2021/10/23 15:08:26 mestre 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 <unistd.h>

#include "back.h"
#include "tutor.h"

const char   *const helpm[] = {
        "\nEnter a space or newline to roll, or",
        "     b   to display the board",
        "     d   to double",
        "     q   to quit\n",
        0
};

const char   *const contin[] = {
        "",
        0
};

int
main(int argc, char *argv[])
{
        int     i;

        signal(SIGINT, getout);
        initcurses();

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

        text(hello);
        text(list);
        i = text(contin);
        if (i == 0)
                i = 2;
        init();
        while (i)
                switch (i) {
                case 1:
                        leave();        /* Does not return */
                        break;

                case 2:
                        if ((i = text(intro1)))
                                break;
                        wrboard();
                        if ((i = text(intro2)))
                                break;

                case 3:
                        if ((i = text(moves)))
                                break;

                case 4:
                        if ((i = text(removepiece)))
                                break;

                case 5:
                        if ((i = text(hits)))
                                break;

                case 6:
                        if ((i = text(endgame)))
                                break;

                case 7:
                        if ((i = text(doubl)))
                                break;

                case 8:
                        if ((i = text(stragy)))
                                break;

                case 9:
                        if ((i = text(prog)))
                                break;

                case 10:
                        if ((i = text(lastch)))
                                break;
                }
        tutor();
        /* NOT REACHED */
}

__dead void
leave(void)
{
        clear();
        endwin();
        execl(EXEC, "backgammon", "-n", (char *)NULL);
        errx(1, "help! Backgammon program is missing!!");
}