/*      $NetBSD: globalcmds.c,v 1.15 2009/11/01 22:08:14 dsl Exp $ */

/*-
 * Copyright (c) 1999
 *      The NetBSD Foundation, Inc.  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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the NetBSD Foundation.
 * 4. Neither the name of the Foundation 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 <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: globalcmds.c,v 1.15 2009/11/01 22:08:14 dsl Exp $");
#endif /* not lint */

#include <curses.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "systat.h"
#include "extern.h"

static char *shortname(const char *, const char *);

static char *
shortname(const char *key, const char *s)
{
        char *p, *q;
        size_t len;

        if (key == NULL) {
                if ((p = strdup(s)) == NULL)
                        return NULL;
                q = strchr(p, '.');
                if (q && strlen(q) > 1) {
                        q[1] = '*';
                        q[2] = '\0';
                }
                return p;
        }

        len = strlen(key);
        if (strncmp(key, s, len) == 0 && s[len] == '.') {
                p = strdup(s + len + 1);
                if (!p)
                        return NULL;
                return p;
        }
        return NULL;
}

void
global_help(char *args)
{
        int col, len;
        struct mode *p;
        char *name, *prev;

        move(CMDLINE, col = 0);
        name = prev = NULL;
        for (p = modes; p->c_name; p++) {
                if ((name = shortname(args, p->c_name)) == NULL)
                        continue;
                if (name && prev && strcmp(name, prev) == 0) {
                        free(name);
                        name = NULL;
                        continue;
                }
                len = strlen(name);
                if (col + len > COLS)
                        break;
                addstr(name);
                col += len + 1;
                if (col + 1 < COLS)
                        addch(' ');
                if (prev)
                        free(prev);
                prev = name;
                name = NULL;
        }
        if (col == 0 && args) {
                standout();
                if ((int)strlen(args) < COLS - 25)
                        printw("help: no matches for `%s.*'", args);
                else
                        printw("help: no matches");
                standend();
        }
        clrtoeol();
        if (name)
                free(name);
        if (prev)
                free(prev);
}

void
global_interval(char *args)
{
        int interval;

        if (!args) {
                interval = 5;
        } else {
                interval = atoi(args);
        }

        if (interval <= 0) {
                error("%d: bad interval.", interval);
                return;
        }

        naptime = interval;
        display(0);
        status();
}


void
global_load(char *args)
{
        (void)getloadavg(avenrun, sizeof(avenrun)/sizeof(avenrun[0]));
        mvprintw(CMDLINE, 0, "%4.1f %4.1f %4.1f",
            avenrun[0], avenrun[1], avenrun[2]);
        clrtoeol();
}

void
global_quit(char *args)
{
        die(0);
}

void
global_stop(char *args)
{
        timeout(-1);
        mvaddstr(CMDLINE, 0, "Refresh disabled.");
        clrtoeol();
}