fastfetch/src/modules/battery.c

#include "fastfetch.h"

#include <dirent.h>

static void printBattery(FFinstance* instance, uint8_t index)
{
    char manufactor[128];
    if(instance->config.batteryShowManufacturer)
    {
        char manufactorPath[42];
        sprintf(manufactorPath, "/sys/class/power_supply/BAT%i/manufacturer", index);
        ffGetFileContent(manufactorPath, manufactor, sizeof(manufactor));
    }
    else
        manufactor[0] = '\0';

    char model[128];
    if(instance->config.batteryShowModel)
    {
        char modelPath[40];
        sprintf(modelPath, "/sys/class/power_supply/BAT%i/model_name", index);
        ffGetFileContent(modelPath, model, sizeof(model));
    }
    else
        model[0] = '\0';

    char technology[32];
    if(instance->config.batteryShowTechnology)
    {
        char technologyPath[40];
        sprintf(technologyPath, "/sys/class/power_supply/BAT%i/technology", index);
        ffGetFileContent(technologyPath, technology, sizeof(technology));
    }
    else
        technology[0] = '\0';

    char capacity[32];
    if(instance->config.batteryShowCapacity)
    {
        char capacityPath[38];
        sprintf(capacityPath, "/sys/class/power_supply/BAT%i/capacity", index);
        ffGetFileContent(capacityPath, capacity, sizeof(capacity));
    }
    else
        capacity[0] = '\0';

    char status[32];
    if(instance->config.batteryShowStatus)
    {
        char statusPath[36];
        sprintf(statusPath, "/sys/class/power_supply/BAT%i/status", index);
        ffGetFileContent(statusPath, status, sizeof(status));
    }
    else
        status[0] = '\0';

    char key[10];
    sprintf(key, "Battery %i", index);

    if(manufactor[0] == '\0' && model[0] == '\0' && technology[0] == '\0' && capacity[0] == '\0' && status[0] == '\0')
    {
        ffPrintError(instance, key, "No file in /sys/class/power_supply/BAT0/ could be read or all battery options are disabled");
        return;
    }

    ffPrintLogoAndKey(instance, key);

    if(manufactor[0] != '\0')
        printf("%s ", manufactor);

    if(model[0] != '\0')
        printf("%s ", model);

    if(technology[0] != '\0')
        printf("(%s) ", technology);

    if(capacity[0] != '\0')
    {
        printf("[%s%%", capacity);
    
        if(status[0] == '\0')
            puts("]");
        else
            printf("; %s]\n", status);
    }
    else
    {
        if(status[0] != '\0')
            printf("%s", status);
        else
            putchar('\n');
    }
}

void ffPrintBattery(FFinstance* instance)
{
    for(uint8_t i = 0; i < 5; i++)
    {
        char path[30];
        sprintf(path, "/sys/class/power_supply/BAT%i", i);

        DIR* dir = opendir(path);
        if(dir != NULL)
        {
            printBattery(instance, i);
            closedir(dir);
        }
    }
}