#!/bin/bash

me="$(readlink -f "$0")"
timeout=300
notify=10

case "$1" in
    start)
        xset s $((timeout - notify)) $notify
        xset dpms $((timeout * 3)) $((timeout * 4)) $((timeout * 5))
        exec xss-lock -n "$me notify" -l $me lock
        ;;
    dim|notify)
        echo "$(date --rfc-3339=seconds) $me: notify: start"
        trap 'exit 0' TERM INT
        trap "kill %% ; wait" EXIT
        notify-send "Lock screen" -t $((notify * 1000)) \
            "Screen will be locked in 10 seconds..."
        echo "$(date --rfc-3339=seconds) $me: notify: end"
        sleep 2147483647 &
        wait
        ;;
    lock)
        # First, stop any music player
        xdotool key XF86AudioStop
        # Then, lock screen
        echo "$(date --rfc-3339=seconds) $me: lock: lock screen"
        i3lock -n -e -i $HOME/.cache/awesome/current-wallpaper.png -t -f
        echo "$(date --rfc-3339=seconds) $me: lock: unlock screen"
        ;;
esac