Simple terminal toggle script

#!/bin/sh

wid=$(xdotool search --classname st-256color)

if [ -z $wid ]
then
  st -e tmux
  wid=$(xdotool search --classname st-256color)
  xdotool windowfocus $wid
elif [ -z $(xdotool search --onlyvisible --classname st-256color 2>/dev/null) ]
then
  xdotool windowmap $wid
  xdotool windowfocus $wid
else
  xdotool windowsize --usehints $wid 100% 100%
  xdotool windowunmap $wid
fi