#!/bin/bash
RES="$1"
#p.e. RES=640x480@60Hz
CMD=${@:2}
ACTIVE_OUTPUT=$(swaymsg -t get_outputs -r | egrep "name|focused" | grep -C 1 '"focused": true' | head -n 1 | sed  's/.*name": "\(.*\)".$/\1/g' )
#RESOLUTION=$(xdpyinfo | awk '/dimensions:/ { print $2 }')
CUR_RESOLUTION=$(swaymsg -t get_outputs --pretty | grep 'focused' -C 2 | grep "Current mode" | sed "s/.*:\(.*\)$/\1/"| tr -d ' ')
wlr-randr --output $ACTIVE_OUTPUT --custom-mode $RES
$CMD &
PID=$!
sleep 1
WID=$(xdotool search -all --pid $PID)
xdotool set_window --class "fullscreenapp" $WID
swaymsg "[class=\"fullscreenapp\"]" fullscreen enable
wait "$PID"
wlr-randr --output $ACTIVE_OUTPUT --custom-mode $CUR_RESOLUTION