/*      $OpenBSD: misc.c,v 1.14 2023/10/10 09:42:56 tb Exp $    */
/*      $NetBSD: misc.c,v 1.4 1995/03/24 05:01:54 cgd Exp $     */

/*
 * Copyright (c) 1983, 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 <ctype.h>
#include <unistd.h>

#include "mille.h"

/*
 * @(#)misc.c   1.2 (Berkeley) 3/28/83
 */

#define NUMSAFE 4

bool
error(char *str, ...)
{
        va_list ap;

        va_start(ap, str);
        wmove(Score, ERR_Y, ERR_X);
        vw_printw(Score, str, ap);
        wclrtoeol(Score);
        beep();
        refresh();
        va_end(ap);
        return FALSE;
}

CARD
getcard(void)
{
        int     c, c1;

        for (;;) {
                while ((c = readch()) == '\n' || c == '\r' || c == ' ')
                        continue;
                if (islower(c))
                        c = toupper(c);
                if (c == killchar() || c == erasechar())
                        return -1;
                addstr(unctrl(c));
                clrtoeol();
                switch (c) {
                  case '1':     case '2':       case '3':
                  case '4':     case '5':       case '6':
                        c -= '0';
                        break;
                  case '0':     case 'P':       case 'p':
                        c = 0;
                        break;
                  default:
                        beep();
                        addch('\b');
                        if (!isprint(c))
                                addch('\b');
                        c = -1;
                        break;
                }
                refresh();
                if (c >= 0) {
                        while ((c1 = readch()) != '\r' && c1 != '\n' && c1 != ' ')
                                if (c1 == killchar())
                                        return -1;
                                else if (c1 == erasechar()) {
                                        addch('\b');
                                        clrtoeol();
                                        refresh();
                                        goto cont;
                                }
                                else
                                        beep();
                        return c;
                }
cont:           ;
        }
}

int
check_ext(bool forcomp)
{
        if (End == 700) {
                if (Play == PLAYER) {
                        if (getyn(EXTENSIONPROMPT)) {
extend:
                                if (!forcomp)
                                        End = 1000;
                                return TRUE;
                        } else {
done:
                                if (!forcomp)
                                        Finished = TRUE;
                                return FALSE;
                        }
                } else {
                        PLAY    *pp, *op;
                        int     i, safe, miles;

                        pp = &Player[COMP];
                        op = &Player[PLAYER];
                        for (safe = 0, i = 0; i < NUMSAFE; i++)
                                if (pp->safety[i] != S_UNKNOWN)
                                        safe++;
                        if (safe < 2)
                                goto done;
                        if (op->mileage == 0 || onecard(op)
                            || (op->can_go && op->mileage >= 500))
                                goto done;
                        for (miles = 0, i = 0; i < NUMSAFE; i++)
                                if (op->safety[i] != S_PLAYED
                                    && pp->safety[i] == S_UNKNOWN)
                                        miles++;
                        if (miles + safe == NUMSAFE)
                                goto extend;
                        for (miles = 0, i = 0; i < HAND_SZ; i++)
                                if ((safe = pp->hand[i]) <= C_200)
                                        miles += Value[safe];
                        if (miles + (Topcard - Deck) * 3 > 1000)
                                goto extend;
                        goto done;
                }
        } else
                goto done;
}

/*
 *      Get a yes or no answer to the given question.  Saves are
 * also allowed.  Return TRUE if the answer was yes, FALSE if no.
 */
int
getyn(int promptno)
{
        char    c;

        Saved = FALSE;
        for (;;) {
                leaveok(Board, FALSE);
                prompt(promptno);
                clrtoeol();
                refresh();
                switch (c = readch()) {
                  case 'n':     case 'N':
                        addch('N');
                        refresh();
                        leaveok(Board, TRUE);
                        return FALSE;
                  case 'y':     case 'Y':
                        addch('Y');
                        refresh();
                        leaveok(Board, TRUE);
                        return TRUE;
                  case 's':     case 'S':
                        addch('S');
                        refresh();
                        Saved = save();
                        continue;
                  case CTRL('L'):
                        wrefresh(curscr);
                        break;
                  default:
                        addstr(unctrl(c));
                        refresh();
                        beep();
                        break;
                }
        }
}

/*
 *      Check to see if more games are desired.  If not, and game
 * came from a saved file, make sure that they don't want to restore
 * it.  Exit appropriately.
 */
void
check_more(void)
{
        On_exit = TRUE;
        if (Player[PLAYER].total >= 5000 || Player[COMP].total >= 5000) {
                if (getyn(ANOTHERGAMEPROMPT))
                        return;
                else {
                        /*
                         * must do accounting normally done in main()
                         */
                        if (Player[PLAYER].total > Player[COMP].total)
                                Player[PLAYER].games++;
                        else if (Player[PLAYER].total < Player[COMP].total)
                                Player[COMP].games++;
                        Player[COMP].total = 0;
                        Player[PLAYER].total = 0;
                }
        } else
                if (getyn(ANOTHERHANDPROMPT))
                        return;
        if (!Saved && getyn(SAVEGAMEPROMPT))
                if (!save())
                        return;
        die(0);
}

int
readch(void)
{
        int     cnt;
        static char     c;

        for (cnt = 0; read(STDIN_FILENO, &c, 1) <= 0; cnt++)
                if (cnt > 100)
                        die(1);
        return c;
}