#!/bin/bash

BLFILE="$HOME/.spool/idle.dim"
OPFILE="$HOME/.spool/active_outputs"
NOHIBERNATE="$HOME/.spool/hibernate_inhibitor"

FADE_TIMEOUT=60 # one minute
DIM_TIMEOUT=120 # two minutes
LOCK_TIMEOUT=300 # five minutes
DPMS_TIMEOUT=600 # ten minutes
SUSPEND_TIMEOUT=3600 # one hour

function usage()
{
    echo "usage: $0 <option>
    start     - Initialize 'swayidle' script. This should be declared in Sway config.
    stop      - Kill 'swayidle' script. Consider idle-inhibitor instead.
    fade      - First idle action. Fades all windows to show background.
    unfade    - Restore opacity for faded windows.
    dim       - Reduce display brightness to minimum.
    undim     - Restore brightness to level prior to 'dim'.
    lock      - Mark as inactive and start 'swaylock'.
    unlock    - (Run upon unlock) Mark as active again.
    sleep     - Disable displays, but continue background processes.
    wake      - Re-enable displays.
    hibernate - Hibernate.
    help      - This message."
    exit
}

if [ -z $1 ]; then
    echo "Missing argument"
    usage
elif [ $1 == "-h" ] || [ $1 == "--help" ] || [ $1 == "help" ]; then
    usage
elif [ $1 == "start" ]; then
    swayidle -w \
        timeout $FADE_TIMEOUT "$0 fade" \
            resume "$0 unfade" \
        timeout $DIM_TIMEOUT "$0 dim" \
            resume "$0 undim" \
        timeout $LOCK_TIMEOUT "$0 lock" \
            resume "$0 unlock" \
        timeout $DPMS_TIMEOUT "$0 sleep" \
            resume "$0 wake" \
        timeout $SUSPEND_TIMEOUT "$0 hibernate"
elif [ $1 == "stop" ]; then
    pkill swayidle
elif [ $1 == "fade" ]; then
    if [ ! -e $HOME/.spool/sway-hidden ]; then
        kill -USR2 `cat $HOME/.spool/sway-transparency`
    fi
elif [ $1 == "unfade" ]; then
    if [ -e $HOME/.spool/sway-hidden ]; then
        kill -USR2 `cat $HOME/.spool/sway-transparency`
        /home/jpm/scripts/sway/displays.pl -w
    fi
elif [ $1 == "dim" ]; then
    echo $($HOME/scripts/thinkpad/blc.pl %) > $BLFILE
    $HOME/scripts/thinkpad/blc.pl = 1 &>-
elif [ $1 == "undim" ]; then
    $HOME/scripts/thinkpad/blc.pl = `cat $BLFILE` &>-
elif [ $1 == "lock" ]; then
    # Change nick to AFK
    #ssh jpm@john.me.tz -i /home/jpm/.ssh/no_pass -t \
        #'screen -S irssi -X stuff "/nick jpmAFK^M"'
    :
elif [ $1 == "unlock" ]; then
    # Change nick to AFK
    #ssh jpm@john.me.tz -i /home/jpm/.ssh/no_pass -t \
        #'screen -S irssi -X stuff "/nick jpm^M"'
    :
elif [ $1 == "sleep" ]; then
    for i in `cat $OPFILE`; do swaymsg "output $i dpms off"; done
elif [ $1 == "wake" ]; then
    /home/jpm/scripts/sway/displays.pl
elif [ $1 == "hibernate" ]; then
    if [ -e $NOHIBERNATE ]; then
        ::
    else
        sudo systemctl start hibernate.target
    fi
else
    echo "Invalid argument: $1"
    usage
fi