#!/bin/sh

export DISPLAY=":0"
OUTPUT="DisplayPort-2"

ORIGINAL_RES=$(xdpyinfo | grep dimensions | sed -r 's/^[^0-9]*([0-9]+x[0-9]+).*$/\1/')
NEW_RES="${1:-$ORIGINAL_RES}"
WM=$(wmctrl -m | head -n 1 | cut -d " " -f2)

stop() {
    if [ "$ORIGINAL_RES" != "$NEW_RES" ]; then
        xrandr --output "$OUTPUT" --mode "$ORIGINAL_RES"
        
        if [ "$WM" = "i3" ]; then
            i3-msg restart
        fi
    fi
    exit 0
}
trap stop INT
trap stop TERM

if [ "$ORIGINAL_RES" != "$NEW_RES" ]; then
    xrandr --output "$OUTPUT" --mode "$NEW_RES"
    
    if [ "$WM" = "i3" ]; then
        i3-msg restart
    fi
fi

x0vncserver -localhost -SecurityTypes none

while :
do
	sleep 10
done