#include "epplet.h"


Epplet_gadget b_close, image, label, label2;

static void cb_timer(void *data);
static void cb_close(void *data);
static void cb_in(void *data, Window w);
static void cb_out(void *data, Window w);

static void
cb_timer(void *data)
{
	static FILE *f;
        char string[255], ac_state[16], lfc[10], rc[10], l[64];
        double prc, range;

        f = fopen("/proc/acpi/ac_adapter/ADP0/state", "r");
        if (f) {
                fgets(string, 255, f);
                sscanf(string, "%*s %s", ac_state);
        }
        
        printf("AC state: %s\n", ac_state);
                
        fclose(f);      


	f = fopen("/proc/acpi/battery/BAT0/info", "r");
        if (f) {
                while (fgets(string, 255, f) != NULL)
                        sscanf(string, "last %*s %*s %s", lfc);
        }

        printf("last full charge: %s\n", lfc);

        fclose(f);


        f = fopen("/proc/acpi/battery/BAT0/state", "r");
        if (f) {
                while (fgets(string, 255, f) != NULL)
                        sscanf(string, "remaining %*s %s", rc);
        }

        printf("remaining charge: %s\n", rc);

        fclose(f);

	
	prc = round(floor((atof(rc) / atof(lfc)) * 100));

        printf("%.0f%% remaining charge.\n", prc);


        if (prc < 10) 
		range = 0;
        else if (prc == 100) 
		range = 100;
        else 
                range = floor((prc / 100) * 10) * 10;

	sprintf(l, "%.0f%%", prc);
	Epplet_change_label(label, l);

	sprintf(l, "AC: %s", ac_state);
	Epplet_change_label(label2, l);

	sprintf(string, 
	"/usr/share/enlightenment/epplet_data/E-Power/E-Power-Bat-%.0f.png", 
		range);
	printf("using image: %s\n", string);
	Epplet_change_image(image, 44, 24, string);
	
	Epplet_timer(cb_timer, NULL, 120.0, "TIMER");   
	return;
	data = NULL;
}

static void
cb_close(void *data)
{
   Epplet_unremember();
   Esync();
   Epplet_cleanup();
   data = NULL;
   exit(0);
}

static void
cb_in(void *data, Window w)
{
   Epplet_gadget_show(b_close);
   return;
   data = NULL;
   w = (Window) 0;
}

static void
cb_out(void *data, Window w)
{
   Epplet_gadget_hide(b_close);
   return;
   data = NULL;
   w = (Window) 0;
}


int
main(int argc, char **argv)
{
	atexit(Epplet_cleanup);
   	Epplet_Init("E-Power", "0.1", "Enlightenment Laptop Power Epplet",			3, 3, argc, argv, 0);
   	b_close = Epplet_create_button(NULL, NULL,
		2, 2, 0, 0, "CLOSE", 0, NULL, cb_close, NULL);
   	Epplet_gadget_show(image = 
		Epplet_create_image
		(2, 2, 44, 24,
		"/usr/share/enlightenment/epplet_data/E-Power/E-Power-Bat-100.png"));
	Epplet_gadget_show(label = 
       		Epplet_create_label
              	(10, 28, "E-Power", 2));
	Epplet_gadget_show(label2 =
       		Epplet_create_label
               	(1, 38, "E-Power", 0));
   	Epplet_register_focus_in_handler(cb_in, NULL);
   	Epplet_register_focus_out_handler(cb_out, NULL);
   	Epplet_show();
   	cb_timer(NULL);
   	Epplet_Loop();
   	return 0;
}