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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "string.h"
#include "battery.h"
#ifndef POWER_BASEDIR
#define POWER_BASEDIR "/sys/class/power_supply/"
#endif
void status_battery(char *batname)
{
char batpath[256];
int batpathlen;
char stline[16];
ssize_t stlen;
int batt_now = 0;
int batt_full = -1;
int batt_percent = -1;
int batt_current = 1;
int batt_power = 1;
int batt_voltage = 0;
float batt_time = -1;
float batt_watts = -1;
// Prepare path
batpathlen = sizeof(POWER_BASEDIR) - 1 + strlen(batname);
if (batpathlen + 1 + sizeof("/energy_full") >= sizeof(batpath))
{
statusError("status_battery",
"batpath buffer too small",
batname);
return;
}
strcpy(batpath, POWER_BASEDIR);
strcat(batpath, batname);
// Is the battery present?
if (access(batpath, F_OK))
{
//printf(" ^fg(grey)[%s] ", batname);
return;
}
// Get info
strcpy(&batpath[batpathlen], "/energy_now");
stlen = fileRead(stline, sizeof(stline), batpath);
if (stlen > 0)
batt_now = atoi(stline);
strcpy(&batpath[batpathlen], "/energy_full");
stlen = fileRead(stline, sizeof(stline), batpath);
if (stlen > 0)
batt_full = atoi(stline);
strcpy(&batpath[batpathlen], "/power_now");
stlen = fileRead(stline, sizeof(stline), batpath);
if (stlen > 0)
batt_power = atoi(stline);
strcpy(&batpath[batpathlen], "/voltage_now");
stlen = fileRead(stline, sizeof(stline), batpath);
if (stlen > 0)
batt_voltage = atoi(stline);
// Prettyprint
if (batt_full > 0)
batt_percent = batt_now / (batt_full / 100);
if (batt_percent <= 40) // 40
{
if (batt_percent <= 25) // 25
{
if (batt_percent <= 10) // 10
fputs("^fg(red)", stdout);
else // 11-25%
fputs("^fg(orange)", stdout);
}
else // 26-40%
fputs("^fg(yellow)", stdout);
}
else
{
if (batt_percent > 70) // 70
fputs("^fg(white)", stdout);
else // 41-70%
fputs("^fg(green)", stdout);
}
batt_current = ((float)batt_power * 100) / ((float)batt_voltage / 100000);
batt_time = (float)batt_now / (float)batt_current;
batt_watts = ((float)batt_power / 1000000);
if (batt_watts == 0) // fully charged and not in use
printf(" %s: %d%% _ _ ", batname, batt_percent);
else
printf(" %s: %d%% %.1fh %.1fW ",
batname, batt_percent, batt_time, batt_watts);
}
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