#!/bin/bash

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

STATE_FILE="/tmp/power_saving_mode"
[ -f "$STATE_FILE" ] && STATE=$(cat "$STATE_FILE") || STATE="performance"

if [ "$STATE" == "powersave" ]; then
    # Set CPU scaling governor
    cpupower frequency-set -g performance
    # Set refresh rate
    xrandr --output DP-4 --mode 2560x1600 --rate 165 > /dev/null 2>&1
    xrandr --output eDP --mode 2560x1600 --rate 165 > /dev/null 2>&1
    xrandr --output eDP-1 --mode 2560x1600 --rate 165 > /dev/null 2>&1
    # Set brightness
    for _ in {1..4}; do brightness-up; done
    # Restart compositor
    pkill picom
    picom -b
    # Done
    echo "Power Saving Mode is now inactive"
    echo "performance" > "$STATE_FILE"
    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
    cpupower frequency-set -g powersave
    # 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 _ in {1..4}; do brightness-down; done
    # Kill music visualizer
    pkill glava
    # Kill compositor
    pkill picom
    # Done
    echo "Power Saving Mode is now active"
    echo "powersave" > "$STATE_FILE"
    sudo -u nick DISPLAY=:0 DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus notify-send "Power Saving Mode is now active"
fi