#!/bin/bash

# Run as sudo
[ "$UID" -eq 0 ] || exec sudo -E "$0" "$@"

if grep -q powersave "/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor";
then
    # Set CPU scaling governor
    for file in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor;
    do
        echo "schedutil" > $file;
    done
    # Set refresh rate
    xrandr --output DP-4 --mode 2560x1600 --rate 165 > /dev/null 2>&1
    xrandr --output eDP --mode 2560x1600 --rate 165 > /dev/null 2>&1
    xrandr --output eDP-1 --mode 2560x1600 --rate 165 > /dev/null 2>&1
    # Set brightness
    for i in {1..4}; do brightness_up; done
    # Restart compositor
    pkill picom
    picom -b
    # Done
    echo "Power Saving Mode is now inactive"
    sudo -u nick DISPLAY=:0 DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus notify-send "Power Saving Mode is now inactive"
else
    # Set CPU scaling governor
    for file in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor;
    do
        echo "powersave" > $file;
    done
    # Set refresh rate
    xrandr --output DP-4 --mode 2560x1600 --rate 60 > /dev/null 2>&1
    xrandr --output eDP --mode 2560x1600 --rate 60 > /dev/null 2>&1
    xrandr --output eDP-1 --mode 2560x1600 --rate 60 > /dev/null 2>&1
    # Set brightness
    for i in {1..4}; do brightness_down; done
    # Kill music visualizer
    pkill glava
    # Kill compositor
    pkill picom
    # Done
    echo "Power Saving Mode is now active"
    sudo -u nick DISPLAY=:0 DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus notify-send "Power Saving Mode is now active"
fi