linux auto-switch battery profile based on AC/Battery status

battery.sh

#!/bin/bash

get_power_source() {
    if [ -f /sys/class/power_supply/ACAD/online ]; then
        cat /sys/class/power_supply/ACAD/online
    else
        echo "Unable to determine power source"
        exit 1
    fi
}

set_power_mode() {
    if [ "$1" == "1" ]; then
        powerprofilesctl set balanced
    else
        powerprofilesctl set power-saver
    fi
}

while true; do
    power_source=$(get_power_source)
    
    if [ "$power_source" == "1" ]; then
        set_power_mode 1
    elif [ "$power_source" == "0" ]; then
        set_power_mode 0
    fi

    sleep 30
done