/*      $OpenBSD: io.c,v 1.23 2024/06/03 09:43:10 otto Exp $    */
/*      $NetBSD: io.c,v 1.9 1997/07/09 06:25:47 phil 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 <ctype.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "cribbage.h"
#include "cribcur.h"

#define LINESIZE                128

#ifdef CTRL
#undef CTRL
#endif
#define CTRL(X)                 (X - 'A' + 1)

char    linebuf[LINESIZE];

char   *rankname[RANKS] = {
        "ACE", "TWO", "THREE", "FOUR", "FIVE", "SIX", "SEVEN",
        "EIGHT", "NINE", "TEN", "JACK", "QUEEN", "KING"
};

char   *rankchar[RANKS] = {
        "A", "2", "3", "4", "5", "6", "7", "8", "9", "T", "J", "Q", "K"
};

char   *suitname[SUITS] = {"SPADES", "HEARTS", "DIAMONDS", "CLUBS"};

char   *suitchar[SUITS] = {"S", "H", "D", "C"};

/*
 * msgcard:
 *      Call msgcrd in one of two forms
 */
int
msgcard(CARD c, bool brief)
{
        if (brief)
                return (msgcrd(c, TRUE, NULL, TRUE));
        else
                return (msgcrd(c, FALSE, " of ", FALSE));
}

/*
 * msgcrd:
 *      Print the value of a card in ascii
 */
int
msgcrd(CARD c, bool brfrank, char *mid, bool brfsuit)
{
        if (c.rank == EMPTY || c.suit == EMPTY)
                return (FALSE);
        if (brfrank)
                addmsg("%1.1s", rankchar[c.rank]);
        else
                addmsg("%s", rankname[c.rank]);
        if (mid != NULL)
                addmsg("%s", mid);
        if (brfsuit)
                addmsg("%1.1s", suitchar[c.suit]);
        else
                addmsg("%s", suitname[c.suit]);
        return (TRUE);
}

/*
 * printcard:
 *      Print out a card.
 */
void
printcard(WINDOW *win, int cardno, CARD c, bool blank)
{
        prcard(win, cardno * 2, cardno, c, blank);
}

/*
 * prcard:
 *      Print out a card on the window at the specified location
 */
void
prcard(WINDOW *win, int y, int x, CARD c, bool blank)
{
        if (c.rank == EMPTY)
                return;

        mvwaddstr(win, y + 0, x, "+-----+");
        mvwaddstr(win, y + 1, x, "|     |");
        mvwaddstr(win, y + 2, x, "|     |");
        mvwaddstr(win, y + 3, x, "|     |");
        mvwaddstr(win, y + 4, x, "+-----+");
        if (!blank) {
                mvwaddch(win, y + 1, x + 1, rankchar[c.rank][0]);
                waddch(win, suitchar[c.suit][0]);
                mvwaddch(win, y + 3, x + 4, rankchar[c.rank][0]);
                waddch(win, suitchar[c.suit][0]);
        }
}

/*
 * prhand:
 *      Print a hand of n cards
 */
void
prhand(CARD h[], int n, WINDOW *win, bool blank)
{
        int i;

        werase(win);
        for (i = 0; i < n; i++)
                printcard(win, i, *h++, blank);
        wrefresh(win);
}

/*
 * infrom:
 *      reads a card, supposedly in hand, accepting unambiguous brief
 *      input, returns the index of the card found...
 */
int
infrom(CARD hand[], int n, char *prompt)
{
        int i, j;
        CARD crd;

        if (n < 1) {
                bye();
                printf("\nINFROM: %d = n < 1!!\n", n);
                exit(74);
        }
        for (;;) {
                msg("%s", prompt);
                if (incard(&crd)) {     /* if card is full card */
                        if (!isone(crd, hand, n))
                                msg("That's not in your hand");
                        else {
                                for (i = 0; i < n; i++)
                                        if (hand[i].rank == crd.rank &&
                                            hand[i].suit == crd.suit)
                                                break;
                                if (i >= n) {
                                        bye();
                        printf("\nINFROM: isone or something messed up\n");
                                        exit(77);
                                }
                                return (i);
                        }
                } else                  /* if not full card... */
                        if (crd.rank != EMPTY) {
                                for (i = 0; i < n; i++)
                                        if (hand[i].rank == crd.rank)
                                                break;
                                if (i >= n)
                                        msg("No such rank in your hand");
                                else {
                                        for (j = i + 1; j < n; j++)
                                                if (hand[j].rank == crd.rank)
                                                        break;
                                        if (j < n)
                                                msg("Ambiguous rank");
                                        else
                                                return (i);
                                }
                        } else
                                msg("Sorry, I missed that");
        }
}

/*
 * incard:
 *      Inputs a card in any format.  It reads a line ending with a CR
 *      and then parses it.
 */
int
incard(CARD *crd)
{
        int i;
        int rnk, sut;
        char *p, *p1;
        bool retval;

        retval = FALSE;
        rnk = sut = EMPTY;
        p1 = get_line();
        if (*p1 == '\0')
                goto gotit;
        p = p1;
        while (*p1 != ' ' && *p1 != '\0')
                ++p1;
        *p1++ = '\0';

        /* IMPORTANT: no real card has 2 char first name */
        if (p + 3 == p1) {      /* check for short form */
                for (i = 0; i < RANKS; i++) {
                        if (*p == *rankchar[i]) {
                                rnk = i;
                                break;
                        }
                }
                if (rnk == EMPTY)
                        goto gotit;     /* it's nothing... */
                ++p;            /* advance to next char */
                for (i = 0; i < SUITS; i++) {
                        if (*p == *suitchar[i]) {
                                sut = i;
                                break;
                        }
                }
                if (sut != EMPTY)
                        retval = TRUE;
                goto gotit;
        }
        for (i = 0; i < RANKS; i++) {
                if (!strcmp(p, rankname[i]) || !strcmp(p, rankchar[i])) {
                        rnk = i;
                        break;
                }
        }
        if (rnk == EMPTY || *p1 == '\0')
                goto gotit;
        p = p1;
        while (*p1 != ' ' && *p1 != '\0')
                ++p1;
        *p1++ = '\0';
        if (!strcmp("OF", p)) {
                if (*p1 == '\0')
                        goto gotit;
                p = p1;
                while (*p1 != ' ' && *p1 != '\0')
                        ++p1;
                *p1 = '\0';
        }
        for (i = 0; i < SUITS; i++) {
                if (!strcmp(p, suitname[i]) || !strcmp(p, suitchar[i])) {
                        sut = i;
                        break;
                }
        }
        if (sut != EMPTY)
                retval = TRUE;
gotit:
        (*crd).rank = rnk;
        (*crd).suit = sut;
        return (retval);
}

/*
 * getuchar:
 *      Reads and converts to upper case
 */
int
getuchar(void)
{
        int c;

        c = readchar();
        if (islower(c))
                c = toupper(c);
        waddch(Msgwin, c);
        return (c);
}

/*
 * number:
 *      Reads in a decimal number and makes sure it is between "lo" and
 *      "hi" inclusive.
 */
int
number(int lo, int hi, char *prompt)
{
        char *p;
        int sum, tmp;

        for (sum = 0;;) {
                msg("%s", prompt);
                p = get_line();
                if (*p == '\0') {
                        msg(quiet ? "Not a number" :
                            "That doesn't look like a number");
                        continue;
                }
                sum = 0;

                if (!isdigit((unsigned char)*p))
                        sum = lo - 1;
                else
                        while (isdigit((unsigned char)*p)) {
                                tmp = 10 * sum + (*p - '0');
                                /* Overflow */
                                if (tmp < sum) {
                                        sum = hi + 1;
                                        while (isdigit((unsigned char)*p))
                                                ++p;
                                        break;
                                }
                                sum = tmp;
                                ++p;
                        }

                if (*p != ' ' && *p != '\t' && *p != '\0')
                        sum = lo - 1;
                if (sum >= lo && sum <= hi)
                        break;
                if (sum == lo - 1)
                        msg(quiet ? "Not a number" :
                            "That doesn't look like a number");
                else
                        msg("That is not between %d and %d inclusive",
                            lo, hi);
        }
        return (sum);
}

/*
 * msg:
 *      Display a message at the top of the screen.
 */
char    Msgbuf[BUFSIZ] = {'\0'};
int     Mpos = 0;
static int Newpos = 0;

void
msg(const char *fmt, ...)
{
        va_list ap;

        va_start(ap, fmt);
        (void)vsnprintf(&Msgbuf[Newpos], sizeof Msgbuf - Newpos, fmt, ap);
        Newpos = strlen(Msgbuf);
        va_end(ap);
        endmsg();
}

/*
 * addmsg:
 *      Add things to the current message
 */
void
addmsg(const char *fmt, ...)
{
        va_list ap;

        va_start(ap, fmt);
        (void)vsnprintf(&Msgbuf[Newpos], sizeof Msgbuf - Newpos, fmt, ap);
        Newpos = strlen(Msgbuf);
        va_end(ap);
}

/*
 * endmsg:
 *      Display a new msg.
 */
int     Lineno = 0;

void
endmsg(void)
{
        static int lastline = 0;
        int len;
        char *mp, *omp;

        /* All messages should start with uppercase */
        mvaddch(lastline + Y_MSG_START, SCORE_X, ' ');
        if (islower((unsigned char)Msgbuf[0]) && Msgbuf[1] != ')')
                Msgbuf[0] = toupper((unsigned char)Msgbuf[0]);
        mp = Msgbuf;
        len = strlen(mp);
        if (len / MSG_X + Lineno >= MSG_Y) {
                while (Lineno < MSG_Y) {
                        wmove(Msgwin, Lineno++, 0);
                        wclrtoeol(Msgwin);
                }
                Lineno = 0;
        }
        mvaddch(Lineno + Y_MSG_START, SCORE_X, '*');
        lastline = Lineno;
        do {
                mvwaddstr(Msgwin, Lineno, 0, mp);
                if ((len = strlen(mp)) > MSG_X) {
                        omp = mp;
                        for (mp = &mp[MSG_X - 1]; *mp != ' '; mp--)
                                continue;
                        while (*mp == ' ')
                                mp--;
                        mp++;
                        wmove(Msgwin, Lineno, mp - omp);
                        wclrtoeol(Msgwin);
                }
                if (++Lineno >= MSG_Y)
                        Lineno = 0;
        } while (len > MSG_X);
        wclrtoeol(Msgwin);
        Mpos = len;
        Newpos = 0;
        wrefresh(Msgwin);
        refresh();
        wrefresh(Msgwin);
}

/*
 * do_wait:
 *      Wait for the user to type ' ' before doing anything else
 */
void
do_wait(void)
{
        static char prompt[] = {'-', '-', 'M', 'o', 'r', 'e', '-', '-', '\0'};

        if (Mpos + sizeof prompt < MSG_X)
                wmove(Msgwin, Lineno > 0 ? Lineno - 1 : MSG_Y - 1, Mpos);
        else {
                mvwaddch(Msgwin, Lineno, 0, ' ');
                wclrtoeol(Msgwin);
                if (++Lineno >= MSG_Y)
                        Lineno = 0;
        }
        waddstr(Msgwin, prompt);
        wrefresh(Msgwin);
        wait_for(' ');
}

/*
 * wait_for
 *      Sit around until the guy types the right key
 */
void
wait_for(int ch)
{
        char c;

        if (ch == '\n')
                while ((c = readchar()) != '\n')
                        continue;
        else
                while (readchar() != ch)
                        continue;
}

/*
 * readchar:
 *      Reads and returns a character, checking for gross input errors
 */
int
readchar(void)
{
        int cnt;
        char c;

over:
        cnt = 0;
        while (read(STDIN_FILENO, &c, sizeof(char)) <= 0)
                if (cnt++ > 100) {      /* if we are getting infinite EOFs */
                        bye();          /* quit the game */
                        exit(1);
                }
        if (c == CTRL('L')) {
                wrefresh(curscr);
                goto over;
        }
        if (c == '\r')
                return ('\n');
        else
                return (c);
}

/*
 * get_line:
 *      Reads the next line up to '\n' or EOF.  Multiple spaces are
 *      compressed to one space; a space is inserted before a ','
 */
char *
get_line(void)
{
        size_t pos;
        int c, oy, ox;

        getyx(Msgwin, oy, ox);
        wrefresh(Msgwin);
        /* loop reading in the string, and put it in a temporary buffer */
        for (pos = 0; (c = readchar()) != '\n'; wclrtoeol(Msgwin),
            wrefresh(Msgwin)) {
                if (c == -1)
                        continue;
                if (c == ' ' && (pos == 0 || linebuf[pos - 1] == ' '))
                        continue;
                if (c == erasechar()) {
                        if (pos > 0) {
                                int i;
                                pos--;
                                for (i = strlen(unctrl(linebuf[pos])); i; i--)
                                        waddch(Msgwin, '\b');
                        }
                        continue;
                }
                if (c == killchar()) {
                        pos = 0;
                        wmove(Msgwin, oy, ox);
                        continue;
                }
                if (pos >= LINESIZE - 1 || !(isalnum(c) || c == ' ')) {
                        beep();
                        continue;
                }
                if (islower(c))
                        c = toupper(c);
                linebuf[pos++] = c;
                waddstr(Msgwin, unctrl(c));
                Mpos++;
        }
        while (pos < sizeof(linebuf))
                linebuf[pos++] = '\0';
        return (linebuf);
}

void
rintsig(int signo)
{
        bye();
        exit(1);
}

/*
 * bye:
 *      Leave the program, cleaning things up as we go.
 */
void
bye(void)
{
        signal(SIGINT, SIG_IGN);
        mvcur(0, COLS - 1, LINES - 1, 0);
        fflush(stdout);
        endwin();
        putchar('\n');
}