/* Main sysmon client source file. */

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

#include "action.h"
#include "global.h"
#include "window.h"

/*************************************************************************/

/* Minimum time between trying to execute a specific action, in msec */
#define ACTION_DELAY	50

/* Should we quit? */
static int quit = 0;

/*************************************************************************/
/*************************************************************************/

/* See if any windows need to be refreshed, and if so, do it. */

static void check_refresh(void)
{
    Window *win;
    int refreshed = 0;

    for (win = winlist; win; win = win->next) {
	if (win->refresh > 0 &&
			tv_diff_milli(NULL, &win->lastdraw) >= win->refresh) {
	    gettimeofday(&win->lastdraw, NULL);
	    win_refresh(win);
	    refreshed = 1;
	}
    }
    if (refreshed)
	screen_refresh();
}

/*************************************************************************/

/* See what actions need to be executed now. */

static void check_actions(void)
{
    Action *act;

    for (act = actlist; act; act = act->next) {
	if (tv_diff_milli(NULL, &act->lasttouch) >= ACTION_DELAY &&
		act->check > 0 &&
		tv_diff_milli(NULL, &act->lastexec) >= act->check)
	{
	    act_execute(act);
	}
    }
}

/*************************************************************************/

/* See if there's any input to do something with. */

static void check_input(void)
{
    static char escape_buf[16];	/* For saving escape sequences */
    static int escape_len = 0;
    int c;

    while ((c = getch()) != ERR) {
	if (escape_len > 0) {
	    if (escape_len < sizeof(escape_buf)-1)
		escape_buf[escape_len++] = c;
	    /* XXX check for escape codes */
	    continue;
	}
	if (c == 'q') {
	    quit = 1;
	} else if (c == 'R') {
	    reboot_menu(0);
	} else if (c == '\022') {
	    reboot_menu(1);
	}
    }
}

/*************************************************************************/
/*************************************************************************/

static void init(int argc, char **argv)
{
    const char *config = DEF_CONFIG;
    Window *win;

    /* Set up the screen.  This gets us the screen size, which we need for
     * processing the config file. */
    screen_setup();

    /* Read the config file.  If we get failure, bail. */
    if (!read_config(config))
	exit(1);

    /* Display all windows. */
    for (win = winlist; win; win = win->next) {
	win_open(win);
	win_refresh(win);
    }

    /* Draw stuff to the screen. */
    screen_redraw();
}

/*************************************************************************/

int main(int argc, char **argv)
{
    init(argc, argv);
    while (!quit) {
	check_refresh();
	check_actions();
	check_input();
	usleep(5000);
    }
    return 0;
}

/*************************************************************************/