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/* main.c
*
* Copyright 2025 Rose <rose@pinkro.se>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License only.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#include "config.h"
#include "configuration.h"
#include "sun.h"
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <signal.h>
#include <unistd.h>
#include <glib.h>
#ifdef USE_GCLUE
#include <geoclue.h>
static GClueAccuracyLevel accuracy_level = GCLUE_ACCURACY_LEVEL_EXACT;
GClueSimple *simple = NULL;
GClueClient *client = NULL;
#endif
GMainLoop *main_loop;
enum LocationType loctype = 0;
dictionary *dict = NULL;
bool quit = false;
bool firstrun = true;
bool isdark = false;
float lat = 0;
float lng = 0;
#ifdef USE_GCLUE
static void
get_gclue_location (GClueSimple *simple)
{
GClueLocation *location;
location = gclue_simple_get_location (simple);
if (!location) {
g_printerr ("Failed to get location through geoclue");
exit (1);
}
lat = gclue_location_get_latitude (location);
lng = gclue_location_get_longitude (location);
return;
}
#endif
void
on_dark (void)
{
char *home = getenv ("HOME");
char *darklock = malloc(strlen(home)*sizeof(char)+strlen("/.cache/darkmode")*sizeof(char)+1);
sprintf (darklock, "%s/.cache/darkmode", home);
if (firstrun) {
if (home != NULL) {
if (access(darklock, F_OK) == 0) {
free (darklock);
isdark = true;
return;
}
}
} else if (isdark) {
return;
}
const char *dark_command = iniparser_getstring (dict, "dark:cmd", "");
if (sizeof (dark_command) == sizeof ("")) {
g_printerr ("No command for dark mode specified!");
return;
}
int rtrn = system (dark_command);
if (rtrn != 0) {
g_printerr("Dark command failed with non-zero exit code!");
free (darklock);
return;
}
FILE *dark = fopen (darklock, "w");
fclose (dark);
free (darklock);
isdark = true;
}
void
on_light (void)
{
char *home = getenv("HOME");
char *darklock = malloc(strlen(home)*sizeof(char)+strlen("/.cache/darkmode")*sizeof(char)+1);
sprintf (darklock, "%s/.cache/darkmode", home);
if (firstrun) {
if (home != NULL) {
if (access(darklock, F_OK) != 0) {
free (darklock);
isdark = true;
return;
}
}
} else if (!isdark) {
return;
}
const char *light_command = iniparser_getstring (dict, "light:cmd", "");
if (sizeof (light_command) == sizeof ("")) {
g_printerr ("No command for light mode specified!");
return;
}
int rtrn = system (light_command);
if (rtrn != 0) {
g_printerr("Light command failed with non-zero exit code!");
free (darklock);
return;
}
remove (darklock);
free (darklock);
isdark = false;
}
void
loop (void)
{
float sunrise = getSunrise (lat, lng);
double hours;
float minutes = modf (sunrise, &hours)*60;
g_print ("Sunrise: %.0f:%.0f\n", hours, minutes);
float sunset = getSunset (lat, lng);
minutes = modf (sunset, &hours)*60;
g_print ("Sunset: %.0f:%.0f\n", hours, minutes);
if (isDark (sunrise, sunset))
on_dark ();
else
on_light ();
firstrun = false;
}
void
handleExit(int sig) {
quit = true;
signal(sig, SIG_IGN);
return;
}
gint
main (gint argc,
gchar *argv[])
{
g_autoptr(GError) error = NULL;
g_autoptr(GOptionContext) context = NULL;
gdouble locLat = 100;
gdouble locLng = 100;
GOptionEntry entries[] = {
{ "latitude", 'l', 0, G_OPTION_ARG_DOUBLE, &locLat, "Override the latitude", "lat" },
{ "longitude", 'o', 0, G_OPTION_ARG_DOUBLE, &locLng, "Override the longitude", "long" },
G_OPTION_ENTRY_NULL
};
context = g_option_context_new ("- automatically switch between dark and light mode");
g_option_context_add_main_entries (context, entries, NULL);
if (!g_option_context_parse (context, &argc, &argv, &error)) {
g_print ("option parsing failed: %s\n", error->message);
exit (1);
}
dict = load_config ();
loctype = config_get_location_type (dict);
if (loctype == MANUAL) {
lat = config_get_latitude (dict);
lng = config_get_longitude (dict);
} else {
#if defined USE_GCLUE
get_gclue_location (gclue_simple_new_sync ("autodarkmode",
accuracy_level,
NULL,
NULL));
g_print ("lat: %f\n", lat);
g_print ("lng: %f\n", lng);
#else
fprintf (stderr, "ERROR: autodarkmode was not compiled with gclue support.\n");
iniparser_freedict (dict);
return 1;
#endif
}
lat = locLat == 100 ? lat : locLat;
lng = locLng == 100 ? lng : locLng;
signal(SIGINT, handleExit);
while (!quit) {
loop();
sleep (60);
}
iniparser_freedict (dict);
return EXIT_SUCCESS;
}
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