Rofi - bluetoothctl choice

bt-choice.sh

#!/usr/bin/env -S bash  -e

# This script is meant to be called through rofi
# Hopefully as an element of polybar
# Polybar config
#
#  rofi -show bt -modes "bt:bt-choice.sh"
#
# [module/bt]
# type = custom/script
# expand-right=true
# exec = echo "Bt $(bluetoothctl devices Connected | wc -l)"
# interval=360
# click-left=  rofi -show bt -modes "bt:bt-choice.sh"

function set_option() {
    echo -en "\0$1\x1f$2\n"
}

if ! which bluetoothctl > /dev/null
then
    echo "bluetoothctl must be installed" 
    exit 1
fi


devices=$(bluetoothctl devices Paired | cut -d' ' -f2,3)

if [ 0 -eq $# ] 
then
    echo "There were no arguments" >&2

set_option "prompt" "Choose a device"

IFS='\n'
for i in "$devices"
do
    echo  $i
done
else
    bluetoothctl connect $(echo $1 | cut -d' ' -f1) >/dev/null & 
    disown
    exit 0
fi